S-19680 Series
www.ablicinc.com
FOR AUTOMOTIVE 105°C OPERATION CURRENT MONITOR
HIGH SIDE SWITCH
© ABLIC Inc., 2016-2017 Rev.1.2_01
1
The S-19680 Series, developed by using CMOS technology, is a high side switch with the current monitor function.
When the Pch output transistor is turned on, voltage is supplied to the load connected to the OUT pin. Monitoring the
current which flows from the VIN pin to the OUT pin by using two external resistors, the S-19680 Series limits the current
so that it does not exceed the set value. Depending on the monitored current value, the S-19680 Series detects the
short-circuit status or the open status of the load connected to the OUT pin, and outputs an alarm signal.
In addition, the S-19680 Series has the ON / OFF circuit to control the Pch output transistor's status, ON and OFF, and the
thermal shutdown circuit to limit overheating. The hysteresis type or latch type can be selected for the thermal shutdown
circuit.
Caution This product can be used in vehicle equipment and in-vehicle equipment. Before using the product in the
purpose, contact to ABLIC Inc. is indispensable.
Features
Power supply voltage: VDD = 2.7 V to 10.0 V
Current consumption during operation: ISS1 = 12
A typ., ISS1 = 24
A max. (T
j
=
40°C to 105°C)
ON resistance: RON = 1.1
typ., RON = 3.7
max. (T
j
=
40°C to 105°C)
Limit current: 40 mA to 100 mA, selectable in 10 mA step
Load short-circuit detection current: ILIM
0.3 to ILIM
1.0 (ISHORT 30 mA), selectable in 0.1 step
Load open detection current: 2.5 mA to 30 mA, selectable in 2.5 mA step
Built-in thermal shutdown circuit: Detection temperature 165°C typ.
Selectable in hysteresis type or latch type
Built-in ON / OFF circuit: Ensures long battery life.
Operation temperature range: Ta =
40°C to
105°C
Lead-free (Sn 100%), halogen-free
AEC-Q100 qualified *1
*1. Contact our sales office for details.
Applications
Remote LNA phantom power such as GPS antenna
ADAS locator
e-call
Car navigation system
Car audio system
Package
TMSOP-8
www.ablic.com
FOR AUTOMOTIVE 105°C OPERATION CURRENT MONITOR HIGH SIDE SWITCH
S-19680 Series Rev.1.2_01
2
Block Diagram
*1
ON / OFF
VIN
VSS
OUT
OL
_____
SC
_____
ON / OFF
circuit
VDD
SENSE
Thermal shutdown circuit
*2
*2
Load short-circuit
detection circuit
Load open
detection circuit
Current limit circuit
Current sense
amplifier
*3
I/V conversion
circuit
*1. The VDD pin supplies power to the internal circuit.
*2. Parasitic diode
*3. The ON / OFF circuit controls the internal circuit, the Pch output transistor and the Nch output transistor.
Figure 1
FOR AUTOMOTIVE 105°C OPERATION CURRENT MONITOR HIGH SIDE SWITCH
Rev.1.2_01 S-19680 Series
3
AEC-Q100 Qualified
This IC supports AEC-Q100 for operation temperature grade 2.
Contact our sales office for details of AEC-Q100 reliability specification.
Product Name Structure
Users can select the product type and current setting value (limit current, load short-circuit detection current, load open
detection current) for the S-19680 Series. Refer to "1. Product name" regarding the contents of product name, "2.
Function list of product types" regarding the product types, "3. Package" regarding the package drawings and "4.
Product name list" for details of product names.
1. Product name
S-19680 x xx H - K8T2 U
Package abbreviation and IC packing specifications*1
K8T2: TMSOP-8, Tape
Environmental code
U: Lead free (Sn 100%), halogen free
Operation temperature
H: Ta = 40C to 105C
Current setting value*2
Sequentially set from AA to ZZ
Product type*3
A, B
*1. Refer to the tape drawing.
*2. Refer to "4. Product name list".
*3. Refer to "2. Function list of product types".
2. Function list of product types
Table 1
Product Type ON / OFF Logic Thermal Shutdown Circuit
A Active "H" Hysteresis type
B Active "H" Latch type
3. Package
Table 2 Package Drawing Codes
Package Name Dimension Tape Reel
TMSOP-8 FM008-A-P-SD FM008-A-C-SD FM008-A-R-SD
FOR AUTOMOTIVE 105°C OPERATION CURRENT MONITOR HIGH SIDE SWITCH
S-19680 Series Rev.1.2_01
4
4. Product name list
4. 1 S-19680 Series A type
Table 3
Product Name Limit Current (ILIM) Load Short-circuit Detection
Current (ISHORT)
Load Open Detection Current
(IOPEN)
S-19680AAAH-K8T2U 40 mA 40 mA 2.5 mA
S-19680AABH-K8T2U 100 mA 50 mA 10 mA
Remark Please contact our sales office for products with specifications other than the above.
4. 2 S-19680 Series B type
Table 4
Product Name Limit Current (ILIM) Load Short-circuit Detection
Current (ISHORT)
Load Open Detection Current
(IOPEN)
S-19680BAAH-K8T2U 50 mA 40 mA 5.0 mA
S-19680BABH-K8T2U 50 mA 35 mA 7.5 mA
S-19680BACH-K8T2U 100 mA 50 mA 10 mA
S-19680BADH-K8T2U 100 mA 50 mA 5.0 mA
S-19680BAEH-K8T2U 60 mA 54 mA 15 mA
S-19680BAFH-K8T2U 70 mA 70 mA 5.0 mA
Remark Please contact our sales office for products with specifications other than the above.
FOR AUTOMOTIVE 105°C OPERATION CURRENT MONITOR HIGH SIDE SWITCH
Rev.1.2_01 S-19680 Series
5
Pin Configuration
1. TMSOP-8
7
6
5
8
2
3
4
1
Top view
Figure 2
Table 5
Pin No. Symbol Description
1
VIN Voltage input pin
2
SENSE Current sense input pin
3
VDD IC power supply pin
4
ON / OFF ON / OFF pin
5
OL
_
___
_
Load open detection signal output pin
6
SC
_____
Load short-circuit detection signal
output pin
7
VSS GND pin
8
OUT Voltage output pin
FOR AUTOMOTIVE 105°C OPERATION CURRENT MONITOR HIGH SIDE SWITCH
S-19680 Series Rev.1.2_01
6
Absolute Maximum Ratings
Table 6
(Ta = 25°C unless otherwise specified)
Item Symbol Absolute Maximum Rating Unit
Input voltage
VDD V
SS 0.3 to VSS 12 V
VIN V
SS 0.3 to VDD 0.3 ≤ VSS 12 V
VSENSE V
SS 0.3 to VDD 0.3 ≤ VSS 12 V
VON / OFF V
SS 0.3 to VDD 0.3 ≤ VSS 12 V
VIN VSENSE 3.0 to 3.0 V
Output voltage
VOUT V
SS 0.3 to VIN 0.3 ≤ VSS 12 V
VOL
____ VSS 0.3 to VSS 12 V
VSC
_____ VSS 0.3 to VSS 12 V
Output current
IOUT 120 mA
IOL
____ 6 mA
ISC
_____ 6 mA
Junction temperature Tj 40 to 150 °C
Operation ambient temperature Topr 40 to 105 °C
Storage temperature Tstg 40 to 150 °C
Caution The absolute maximum ratings are rated values exceeding which the product could suffer physical
damage. These values must therefore not be exceeded under any conditions.
Thermal Resistance Value
Table 7
Item Symbol Condition Min. Typ. Max. Unit
Junction-to-ambient thermal resistance*1 JA TMSOP-8 Board 1
160  °C/W
Board 2
133  °C/W
*1. Test environment: compliance with JEDEC STANDARD JESD51-2A
Remark Refer to " Thermal Characteristics" for details of power dissipation and test board.
FOR AUTOMOTIVE 105°C OPERATION CURRENT MONITOR HIGH SIDE SWITCH
Rev.1.2_01 S-19680 Series
7
Electrical Characteristics
Table 8
(VDD = 5.0 V, Tj = 40°C to 105°C unless otherwise specified)
Item Symbol Condition Min. Typ. Max. Unit Test
circuit
Power supply voltage VDD 40°C ≤ T
j
≤ 150°C 2.7  10.0 V 
Current consumption
during operation ISS1 VON / OFF = VDD, IOUT = 0 mA  12 24 A 1
Current consumption
during power-off ISS2 V
ON / OFF = 0 V, IOUT = 0 mA   1.0 A 1
ON resistance*1 RON VIN = VDD 0.51 V
VON / OFF = VDD, IOUT = 100 mA  1.1 3.7  2
Leakage current ILEAK V
ON / OFF = 0 V, VOUT = 0 V   1.0 A 3
Limit current*2, *5 ILIM
R
SHUNT
= 5.1
R
SENSE
= 5.1 k
V
OUT
˂ V
DD
0.8
50 mA ≤ I
LIM(S)
≤ 100 mA I
LIM(S)
0.8 I
LIM(S)
I
LIM(S)
1.2
mA 4
40 mA ≤ I
LIM(S)
˂ 50 mA I
LIM(S)
10 I
LIM(S)
I
LIM(S)
10
mA 4
Load short-circuit detection
current*3, *5 ISHORT
R
SHUNT
= 5.1
R
SENSE
= 5.1 k
50 mA ≤ I
SHORT(S)
≤ 100 mA I
SHORT(S)
0.8 I
SHORT(S)
I
SHORT(S)
1.2
mA 5
30 mA ≤ I
SHORT(S)
˂ 50 mA I
SHORT(S)
10 I
SHORT(S)
I
SHORT(S)
10
mA 5
Load open detection
current*4, *5 IOPEN
R
SHUNT
= 5.1
R
SENSE
= 5.1 k
10 mA ˂ I
OPEN(S)
≤ 30 mA I
OPEN(S)
10 I
OPEN(S)
I
OPEN(S)
10
mA 5
2.5 mA ≤ I
OPEN(S)
≤ 10 mA I
OPEN(S)
0.3 I
OPEN(S)
I
OPEN(S)
1.7
mA 5
SC
_
___
_
pin output voltage VSC
_____ ISC
_____ = 1 mA   0.4 V 6
SC
_
___
_
pin leakage current ISC
_____
_LEAK VSC
_____ = 10 V   1 A 7
OL
_
___
_
pin output voltage VOL
____ IOL
____ = 1 mA   0.4 V 6
OL
_
___
_
pin leakage current IOL
____
_LEAK VOL
____ = 10 V   1 A 7
ON / OFF pin input voltage
"H" VSH  2.1   V 8
ON / OFF pin input voltage
"L" VSL    0.6 V 8
ON / OFF pin input current
"H" ISH V
ON / OFF = VDD 0.1  0.1 A 8
ON / OFF pin input current
"L" ISL V
ON / OFF = 0 V 0.1  0.1 A 8
Thermal shutdown
detection temperature TSD Junction temperature  165  °C 
Thermal shutdown release
temperature TSR Junction temperature  135  °C 
*1. R
ON = (VIN VOUT)
IOUT
*2. I
LIM: Actual limit current
I
LIM(S): Set limit current
Attention should be paid to the power dissipation when the output current is large.
*3. I
SHORT: Actual load short-circuit detection current
I
SHORT(S): Set load short-circuit detection current
*4. I
OPEN: Actual load open detection current
I
OPEN(S): Set load open detection current
*5. Only the variation of the IC is considered. The variation of the external shunt resistor (RSHUNT) and the sense resistor
(RSENSE) are not included.
FOR AUTOMOTIVE 105°C OPERATION CURRENT MONITOR HIGH SIDE SWITCH
S-19680 Series Rev.1.2_01
8
Test Circuits
V
DD
OUT
VDD
VSS
ON / OFF
VIN
SENSE
OL
___
SC
___
R
SHUNT
R
SENSE
Set to V
DD
or GND
A
Figure 3 Test Circuit 1
V
IN
OUT
VDD
VSS
ON / OFF
VIN
SENSE
OL
_
___
_
SC
_
___
_
R
SENSE
Set to ON
V
V
DD
Figure 4 Test Circuit 2
V
DD
OUT
VDD
VSS
ON / OFF
VIN
SENSE
OL
_
___
_
SC
_
___
_
R
SENSE
Set to GND
V
OUT
A
Figure 5 Test Circuit 3
V
DD
OUT
VDD
VSS
ON / OFF
VIN
SENSE
OL
_
___
_
SC
_
___
_
R
SENSE
Set to ON
V
OUT
A
R
SHUNT
Figure 6 Test Circuit 4
FOR AUTOMOTIVE 105°C OPERATION CURRENT MONITOR HIGH SIDE SWITCH
Rev.1.2_01 S-19680 Series
9
VDD
OUT
VDD
VSS
ON / OFF
VIN
SENSE
OL
_
___
_
SC
_
___
_
RSENSE
Set to ON
A
RSHUNT
V
V
Figure 7 Test Circuit 5
V
DD
OUT
VDD
VSS
ON / OFF
VIN
SENSE
OL
_
___
_
SC
_
___
_
R
SENSE
Set to ON
R
SHUNT
V
V
I
SC
_____
I
OL
____
Figure 8 Test Circuit 6
V
DD
OUT
VDD
VSS
ON / OFF
VIN
SENSE
OL
_
___
_
SC
_
___
_
R
SENSE
Set to ON
R
SHUNT
A
A
V
SC
_____
V
OL
____
Figure 9 Test Circuit 7
V
DD
OUT
VDD
VSS
ON / OFF
VIN
SENSE
OL
_
___
_
SC
_
___
_
R
SENSE
R
SHUNT
A
V
Figure 10 Test Circuit 8
FOR AUTOMOTIVE 105°C OPERATION CURRENT MONITOR HIGH SIDE SWITCH
S-19680 Series Rev.1.2_01
10
Standard Circuit
C
IN*1
C
L*2
Input Output
GND
Single GND
R
*5
Load short-circuit detection
signal output
Load open detection signal output
R
SHUNT*3
R
SENSE*4
OUT
VDD
VSS
ON / OFF
VIN
SENSE
OL
_
___
_
SC
_
___
_
R
*5
*1. C
IN is a capacitor for stabilizing the input.
*2. C
L is a capacitor for stabilizing the output.
*3. R
SHUNT is a shunt resistor for current monitor.
*4. R
SENSE is a sense resistor for current monitor.
*5. R is the external pull-up resistor for the SC
_____
pin or the O L
_____
pin.
Figure 11
Caution The above connection diagram and constants will not guarantee successful operation.
Perform thorough evaluation using the actual application to set the constants.
Condition of Application
Input capacitor (CIN): A ceramic capacitor with 0.1 F or more is recommended.
Output capacitor (CL): A ceramic capacitor with 0.1 F or more is recommended.
Shunt resistor (RSHUNT): 5.1
Sense resistor (RSENSE): 5.1 k
External pull-up resistor (R): A resistor with 100 k is recommended.
Selection of Input Capacitor (CIN) and Output Capacitor (CL)
In the S-19680 Series, it is recommended to connect CIN between the VDD pin and the VSS pin for stable operation.
In addition, in order to supply stable power to the load connected to the OUT pin, it is recommended to connect CL
between the OUT pin and the VSS pin. The recommended capacitance for both CIN and CL is 0.1 F or more.
Caution Perform thorough evaluation including the temperature characteristics with an actual application to
select CIN and CL.
Selection of Shunt Resistor (RSHUNT) and Sense Resistor (RSENSE)
In the S-19680 Series, RSHUNT and RSENSE are required for the current monitor function. A resistor with 5.1 can be
used for RSHUNT and 5.1 k for RSENSE.
Select RSHUNT and RSENSE carefully since the accuracy of the limit current (ILIM), the load short-circuit detection current
(ISHORT) and the load open detection current (IOPEN) are affected by RSHUNT and RSENSE characteristics. In addition, a
load current flows in RSHUNT, so the heat generation must also be considered.
FOR AUTOMOTIVE 105°C OPERATION CURRENT MONITOR HIGH SIDE SWITCH
Rev.1.2_01 S-19680 Series
11
Operation
1. Basic operation
Figure 12 shows the block diagram of the S-19680 Series to describe the basic operation.
Connect an external power supply to the VDD pin and a load to the OUT pin. Also, connect the external shunt
resistor (RSHUNT) between the VDD pin and the VIN pin and the external sense resistor (RSENSE) between the VDD
pin and the SENSE pin. Due to the IC internal control signal, the Pch output transistor is turned on or off, and the
switch operation is performed between the VIN pin and the OUT pin.
When the Pch output transistor is turned on, the VIN pin and the OUT pin are connected. Since the output current
which flows from the OUT pin to the load (IOUT) is supplied from VDD via RSHUNT and the Pch output transistor, the
current which flows in RSHUNT (ISHUNT) will be ISHUNT = IOUT.
Since a voltage drop (VSHUNT) occurs by flowing ISHUNT in RSHUNT and the Pch output transistor with ON resistance
(RON), the voltage supplied to the load (VOUT) is calculated by using formula (1).
(1) VOUT = VDD ISHUNT (RSHUNT RON)
VIN OUT
RSHUNT
SENSE
RSENSE
Control signal
ISHUNT
*1
VDD
CIN
VDD CL RL
*1. Parasitic diode
Figure 12
2. Current monitor operation
Figure 13 shows the block diagram of the current monitor operation in the S-19680 Series.
By using RSHUNT and RSENSE, the S-19680 Series monitors the current which flows from the VIN pin to the OUT pin.
A resistor with 5.1 can be used for RSHUNT and 5.1 k for RSENSE.
The current depending on the load (ISHUNT) flows in RSHUNT. The current sense amplifier operates so that the
SENSE pin voltage becomes the same voltage as the VIN pin voltage. VSHUNT generated in RSHUNT is calculated by
using formula (2).
(2) VSHUNT = ISHUNT RSHUNT
Similarly, the same voltage as VSHUNT is generated in RSENSE, so the current which flows in RSENSE (ISENSE) is
calculated by using formula (3).
(3) ISENSE = ISHUNT RSHUNT
RSENSE
The current limit circuit, the load short-circuit detection circuit and the load open detection circuit monitors ISHUNT
depending on ISENSE value.
2. 1 Current limit circuit
By the current limit circuit, the S-19680 Series limits the current so that ISHUNT does not exceed the set value.
The current limit circuit monitors ISHUNT depending on ISENSE value. When ISHUNT reaches the limit current (ILIM), the
circuit controls the Pch output transistor and limits the current so that ISHUNT does not exceed ILIM.
Caution Be aware that ISHUNT which is larger than ILIM flows during the period from when ISHUNT reaches ILIM to
when the current limit circuit responds.
FOR AUTOMOTIVE 105°C OPERATION CURRENT MONITOR HIGH SIDE SWITCH
S-19680 Series Rev.1.2_01
12
2. 2 Load short-circuit detection circuit
By the load short-circuit detection circuit, the S-19680 Series detects the short-circuit status of the load connected
to the OUT pin, and outputs an alarm signal. The output form of the SC
_____
pin which outputs the alarm signal is Nch
open-drain output, the output logic is active "L".
The load short-circuit detection circuit monitors ISHUNT depending on ISENSE value. When the condition of
ISHUNT ≥ load short-circuit detection current (ISHORT) is satisfied, the status changes to the load short-circuit
detection status and the Nch output transistor is turned on. When the condition of ISHUNT ˂ ISHORT is satisfied, the
status changes to the load short-circuit release status and the Nch output transistor is turned off.
Caution 1. As a result of the power supply startup and the power supply fluctuation, an inrush current may
flow from the VIN pin to the OUT pin. Even in the load short-circuit release status, when the
condition of ISHUNT ≥ ISHORT is satisfied temporarily due to the inrush current, the status changes to
the load short-circuit detection status. Therefore, caution should be exercised.
2. As a result of the power supply fluctuation, the VIN pin voltage may drop lower than the OUT pin
voltage. At this time, no current flows from the VIN pin to the OUT pin. For this reason, even in the
load short-circuit detection status, the condition of ISHUNT ˂ ISHORT is satisfied temporarily and the
status changes to the load short-circuit release status. Therefore, caution should be exercised.
2. 3 Load open detection circuit
By the load open detection circuit, the S-19680 Series detects the open status of the load connected to the OUT
pin, and outputs an alarm signal. The output form of the OL
_____
pin which outputs the alarm signal is Nch open-drain
output, the output logic is active "L".
The load open detection circuit monitors ISHUNT depending on ISENSE value. When the condition of
ISHUNT load open detection current (IOPEN) is satisfied, the status changes to the load open detection status and
the Nch output transistor is turned on. When the condition of ISHUNT IOPEN is satisfied, the status changes to the
load open release status and the Nch output transistor is turned off.
Caution 1. As a result of the power supply startup and the power supply fluctuation, an inrush current may
flow from the VIN pin to the OUT pin. Even in the load open detection status, when the condition of
ISHUNT IOPEN is satisfied temporarily due to the inrush current, the status changes to the load open
release status. Therefore, caution should be exercised.
2. As a result of the power supply fluctuation, the VIN pin voltage may drop lower than the OUT pin
voltage. At this time, no current flows from the VIN pin to the OUT pin. For this reason, even in the
load open release status, the condition of ISHUNT I
OPEN is satisfied temporarily and the status
changes to the load open detection status. Therefore, caution should be exercised.
OUT
Current limit circuit
VIN
SENSE
RSENSE
RSHUNT
VDD
ISHUNT
ISENSE
VSHUNT
Current
sense amplifier
*1
*1
Load open
detection circuit
OL
_____
SC
_____
CIN
VDD CLRL
I/V
conversion
circuit
Load short-circuit
detection circuit
*1. Parasitic diode
Figure 13
FOR AUTOMOTIVE 105°C OPERATION CURRENT MONITOR HIGH SIDE SWITCH
Rev.1.2_01 S-19680 Series
13
2. 4 Truth-value table of load status
According to the SC
_____
pin output and the OL
_____
pin output, the S-19680 Series can confirm the status of the load
connected to the OUT pin. Refer to Table 9 for details. Since the output form of the SC
_____
pin or the O L
_____
pin is Nch
open-drain output, "H" is output by the external pull-up resistor.
Table 9
SC
_
___
_
Pin Output OL
_
___
_
Pin Output Load Status
"L" "H" Load short-circuit status
"H" "L" Load open status
"H" "H" Load normal status
2. 5 Effects caused from shunt resistor (RSHUNT) and sense resistor (RSENSE) characteristics
RSHUNT and RSENSE variations and temperature characteristics affect the accuracy of ILIM, ISHORT and IOPEN. The
values shown in " Electrical Characteristics" are only considered the variation of the IC. In practice, RSHUNT
and RSENSE variations also need to be considered, so caution should be exercised.
The following example is for ILIM. The same results are obtained similarly in both ISHORT and IOPEN.
When RSHUNT and RSENSE variations are considered, ILIM maximum value can be expressed by using formula (1),
and the minimum value by using formula (2).
(1) ILIMmax' = ILIMmax (RSENSEmax / RSENSE)
(RSHUNTmin / RSHUNT)
(2) ILIMmin' = ILIMmin (RSENSEmin / RSENSE)
(RSHUNTmax / RSHUNT)
In case of RSHUNT = 5.1 1% and RSENSE = 5.1 k1%, ILIM values are calculated by using formula (3) and
formula (4), and the values have approximately2% variation compared to the values shown in
" Electrical Characteristics".
(3) ILIMmax' =ILIMmax 1.01
0.99 =ILIMmax1.02
(4) ILIMmin'=ILIMmin 0.99
1.01 = ILIMmin 0.98
Remark RSHUNTmax, RSHUNTmin: RSHUNT variation maximum value and minimum value
RSENSEmax, RSENSEmin: RSENSE variation maximum value and minimum value
ILIMmax, ILIMmin: ILIM maximum value and minimum value which are considered only the IC variation.
ILIMmax', ILIMmin': ILIM maximum value and minimum value which are considered variations of RSHUNT and RSENSE.
FOR AUTOMOTIVE 105°C OPERATION CURRENT MONITOR HIGH SIDE SWITCH
S-19680 Series Rev.1.2_01
14
3. ON / OFF pin
This pin starts and stops the switch operation and the current monitor operation. When the ON / OFF pin is set to
OFF, the internal circuit stops operating and the Pch output transistor and the Nch output transistor (the SC
_____
pin
and the OL
_____
pin) are turned off, reducing current consumption significantly.
The internal equivalent circuit related to the ON / OFF pin is configured as shown in Figure 14, the ON / OFF pin is
neither pulled down nor pulled up. For this reason, do not use it in the floating status. When not using the ON / OFF
pin, connect it to the VDD pin. The current consumption increases when a voltage of 0.6 V to VDD 0.3 V is applied
to the ON / OFF pin, so caution should be exercised.
Table 10
Product
Type
ON / OFF
Pin
Internal
Circuit
OUT Pin
Voltage SC
_____
Pin Voltage*3 OL
_____
Pin Voltage*3 Current
Consumption
A / B "H": ON Operate Power Supply
Voltage*1
"H": Load normal status
"L": Load short-circuit status
"H": Load normal status
"L": Load open status ISS1
"L": OFF Stop VSS*2 "H" "H" ISS2
*1. Power supply voltage is output by turning the Pch output transistor on.
A voltage drop occurs by flowing ISHUNT in RSHUNT and the Pch output transistor with ON resistance (RON).
*2. The OUT pin is neither pulled up nor pulled down internally. The OUT pin voltage changes to VSS level by the load
connected to the OUT pin.
*3. Since the output form of the SC
_____
pin or the OL
_____
pin is Nch open-drain output, it changes to "H" by an external pull-up
resistor.
VSS
ON / OFF
VDD
Figure 14
4. Low power supply voltage detection circuit
The S-19680 Series has a built-in low power supply voltage detection circuit. When power supply voltage drops
lower than the detection voltage, the internal circuit stops operating and the Pch output transistor and Nch output
transistor (the SC
_____
pin and the OL
_____
pin) are turned off. In the latch type thermal shutdown circuit, the detection
status latch is released.
When power supply voltage rises higher than the release voltage, the internal circuit starts operating. The detection
voltage is 2.15 V typ. and the release voltage is 2.2 V typ.
Even if the power supply voltage is higher than the release voltage immediately after power supply startup, the Pch
output transistor and Nch output transistor (the SC
_____
pin and the OL
_____
pin) are turned off until the internal IC
operates stably.
Power supply voltage
Detection voltage
2.15 V typ.
Release voltage
2.2 V typ.
Internal circuit stops operating
Pch output transistor and Nch transistor turn off
Figure 15
FOR AUTOMOTIVE 105°C OPERATION CURRENT MONITOR HIGH SIDE SWITCH
Rev.1.2_01 S-19680 Series
15
5. Thermal shutdown circuit
The S-19680 Series has a built-in thermal shutdown circuit to limit overheating.
The hysteresis type or latch type can be selected for the thermal shutdown circuit.
5. 1 Hysteresis type
When the junction temperature increases to 165°C typ., the thermal shutdown circuit becomes the detection
status, and the Pch output transistor is turned off. When the junction temperature decreases to 135°C typ., the
thermal shutdown circuit becomes the release status, and the Pch output transistor is turned on again.
If the thermal shutdown circuit becomes the detection status due to self-heating, the Pch output transistor is
turned off and VOUT decreases. For this reason, the self-heating is limited and the temperature of the IC decreases.
The thermal shutdown circuit becomes the release status when the temperature of the IC decreases, and the Pch
output transistor is turned on, generating the self-heating again. Repeating this procedure makes the waveform of
VOUT into a pulse-like form. This phenomenon continues unless decreasing either or both of the VDD or IOUT in
order to reduce the internal power consumption, or decreasing the ambient temperature. Note that the product
may suffer physical damage such as deterioration if the above phenomenon occurs continuously.
5. 2 Latch type
When the junction temperature increases to 165°C typ., the thermal shutdown circuit becomes the detection
status, and the Pch output transistor is turned off. Even if the junction temperature would decrease to 135°C typ.,
the thermal shutdown circuit detection status is latched and the Pch output transistor remains in the status, OFF.
The thermal shutdown circuit detection status latch is released by using the ON / OFF pin to set the IC power-off
status or lowering the power supply voltage to change the low power supply voltage detection circuit to the
detection status.
Set the power supply voltage 0.5 V or lower in order to change the low power supply voltage detection circuit to
the detection status.
Caution 1. When a steep fluctuation of the power supply occurs, the thermal shutdown circuit may become
the detection status even if the junction temperature would not reach 165°C typ., so pay enough
attention to the power supply voltage to ensure stable status sufficiently. Perform thorough
evaluation using the actual application.
2. If the OUT pin is steeply shorted with GND, a negative voltage exceeding the absolute maximum
ratings may occur in the OUT pin due to resonance phenomenon of the inductance and the
capacitance including CL on the application. When a negative voltage exceeding the absolute
maximum rating occurs, the thermal shutdown circuit may become the detection status even if the
junction temperature would not reach 165°C typ. If VOUT does not rise when the short-circuit is
eliminated after the OUT pin is steeply shorted with the GND, release the detection status latch with
the method shown in "5. 2 Latch type".
FOR AUTOMOTIVE 105°C OPERATION CURRENT MONITOR HIGH SIDE SWITCH
S-19680 Series Rev.1.2_01
16
Precautions
The wiring patterns for the power supply and GND should be designed so that the impedance is low.
When mounting the input capacitor (CIN) between the VDD pin and the VSS pin, and the output capacitor (CL)
between the OUT pin and the VSS pin, connect them as close as possible to the respective destination pins of the
IC.
The following use conditions are recommended to ensure stable operation of the S-19680 Series; however, perform
thorough evaluation including the temperature characteristics with an actual application to select CIN and CL.
Input capacitor (CIN): A ceramic capacitor with 0.1 F or more is recommended.
Output capacitor (CL): A ceramic capacitor with 0.1 F or more is recommended.
Wiring patterns on the application related to the VDD pin, the VIN pin and the SENSE pin should be designed so that
the impedance is low.
When mounting the shunt resistor (RSHUNT) between the VDD pin and the VIN pin, and the sense resistor (RSENSE)
between the VDD pin and SENSE pin, connect them as close as possible to the respective destination pins of the IC.
If capacitance is added to the SENSE pin, the current sense amplifier may oscillate, so caution should be exercised.
For RSHUNT or RSENSE, use the resistor with the following resistance. The values shown in " Electrical
Characteristics" are considered only the variation of the IC. In practice, RSHUNT and RSENSE variations also need to
be considered, so caution should be exercised.
Shunt resistor (RSHUNT): 5.1
Sense resistor (RSENSE): 5.1 k
When voltage of 3 V or higher is continuously applied between the VIN pin and SENSE pin, the current sense
amplifier characteristics may change, so caution should be exercised.
If the OUT pin is steeply shorted with GND, a negative voltage exceeding the absolute maximum ratings may occur
in the OUT pin due to resonance phenomenon of the inductance and the capacitance including CL on the application.
The resonance phenomenon is expected to be weakened by inserting a series resistance into the resonance path,
and the negative voltage is expected to be limited by inserting a protection diode between the OUT pin and the VSS
pin.
Make sure of the conditions for the power supply voltage and the load current so that the internal loss does not
exceed the power dissipation.
Do not apply an electrostatic discharge to this IC that exceeds the performance ratings of the built-in electrostatic
protection circuit.
ABLIC Inc. claims no responsibility for any disputes arising out of or in connection with any infringement by products
including this IC of patents owned by a third party.
FOR AUTOMOTIVE 105°C OPERATION CURRENT MONITOR HIGH SIDE SWITCH
Rev.1.2_01 S-19680 Series
17
Characteristics (Typical Data)
1. Current consumption during operation vs. Power supply voltage
0246810
V
DD
[V]
14
8
6
4
2
0
I
SS1
[A]
10
12
Ta =
105
C
Ta =
25
C
Ta =
40
C
2. Current consumption during operation vs. Temperature
VDD = 5.0 V
ISS1 [μA]
Ta [°C]
−
25 075 10525 50
−
40
14
8
6
4
2
0
10
12
3. ON resistance vs. Power supply voltage
IOUT = 100 mA
04
1.0
6
210
5.0
3.0
R
ON
[]
V
DD
[V]
0.0
4.0
2.0
8
Ta =
+
105
C
Ta =
+
25
C
Ta =
40
C
4. ON resistance vs. Temperature
VDD = 5.0 V, IOUT = 100 mA
RON [Ω]
Ta [°C]
−
25 075 10525 50
−
40
5.0
3.0
2.0
1.0
0.0
4.0
FOR AUTOMOTIVE 105°C OPERATION CURRENT MONITOR HIGH SIDE SWITCH
S-19680 Series Rev.1.2_01
18
5. Output voltage vs. Output current
5. 1 ILIM = 100 mA product
VDD = 5.0 V
5. 2 ILIM = 40 mA product
VDD = 5.0 V
0
0
120
V
OUT
[V]
I
OUT
[mA]
6
10080604020
2
1
5
4
3Ta = 40C
Ta = 25C
Ta = 105C
0
0
50
V
OUT
[V]
I
OUT
[mA]
6
40302010
2
1
5
4
3Ta = 40C
Ta = 25C
Ta = 105C
6. Load short-circuit detection current vs. Power supply voltage
6. 1 ISHORT = 100 mA product 6. 2 ISHORT = 40 mA product
04
80
6
210
120
100
I
SHORT
[mA]
V
DD
[V]
70
110
90
8
Ta =
40
C
Ta =
+
25
C
Ta =
+
105
C
04
35
6
210
50
I
SHORT
[mA]
V
DD
[V]
30
45
40
8
Ta =
+
25
C
Ta =
40
C
Ta =
+
105
C
7. Load short-circuit detection current vs. Temperature
7. 1 ISHORT = 100 mA product
VDD = 5.0 V
7. 2 ISHORT = 40 mA product
VDD = 5.0 V
I
SHORT
[mA]
Ta [°C]
−
25 075 10525 50
−
40
120
110
100
90
80
I
SHORT
[mA]
Ta [°C]
−
25 075 10525 50
−
40
50
45
40
35
30
8. Load open detection current vs. Power supply voltage
8. 1 IOPEN = 30 mA product 8. 2 IOPEN = 2.5 mA product
04
20
6
210
50
I
OPEN
[mA]
V
DD
[V]
10
40
30
8
Ta =
+
105
C
Ta =
+
25
C
Ta =
40
C
04
2.0
6
210
4.0
I
OPEN
[mA]
V
DD
[V]
1.0
3.0
8
Ta =
+
105
C
Ta =
+
25
C
Ta =
40
C
FOR AUTOMOTIVE 105°C OPERATION CURRENT MONITOR HIGH SIDE SWITCH
Rev.1.2_01 S-19680 Series
19
9. Load open detection current vs. Temperature
9. 1 IOPEN = 30 mA product
VDD = 5.0 V
9. 2 IOPEN = 2.5 mA product
VDD = 5.0 V
I
OPEN
[mA]
Ta [°C]
−
25 075 10525 50
−
40
50
40
30
20
10
I
OPEN
[mA]
Ta [°C]
−
25 075 10525 50
−
40
4.0
3.0
2.0
1.0
10. Power supply startup characteristics (
I
LIM
= 100 mA, I
SHORT
=
40 mA,
I
OPEN
=
2.5 mA product
)
10. 1 Load normal status (IOPEN ˂ IOUT ˂ ISHORT)
VDD = 0 V 5.0 V, CL = 0.1 F,
IOUT = 20 mA, Ta = 25°C
10. 2 Load open status (IOUT ˂ IOPEN)
VDD = 0 V 5.0 V, CL = 0.1 F,
IOUT = 0.01 mA, Ta = 25°C
V
DD
5 V / div.
GND
5 V / div.
GND
3.0
"H"
"L"
0.0 0.5 1.0 1.5 2.0 2.5
V
OUT
V
OL
V
SC
"H"
"L"
Time [ms]
V
DD
5 V / div.
GND
5 V / div.
GND
3.0
"H"
"L"
0.0 0.5 1.0 1.5 2.0 2.5
V
OUT
V
OL
V
SC
"H"
"L"
Time [ms]
10. 3 Load short-circuit status (ISHORT ˂ IOUT ˂ ILIM)
VDD = 0 V 5.0 V, CL = 0.1 F,
IOUT = 60 mA, Ta = 25°C
V
DD
5 V / div.
GND
5 V / div.
GND
3.0
"H"
"L"
0.0 0.5 1.0 1.5 2.0 2.5
V
OUT
V
OL
V
SC
"H"
"L"
Time [ms]
FOR AUTOMOTIVE 105°C OPERATION CURRENT MONITOR HIGH SIDE SWITCH
S-19680 Series Rev.1.2_01
20
11. Power supply fluctuation characteristics (ILIM = 100 mA, ISHORT = 40 mA, IOPEN = 2.5 mA product)
11. 1 Load normal status (IOPEN ˂ IOUT ˂ ISHORT)
VDD = 2.7 V 10.0 V (0.1 V/s),
CL = 0.1 F, IOUT = 20 mA, Ta = 25°C
11. 2 Load open status (IOUT ˂ IOPEN)
VDD = 2.7 V 10.0 V (0.1 V/s),
CL = 0.1 F, IOUT = 0.01 mA, Ta= 25°C
V
DD
5 V / div.
GND
5 V / div.
GND
3.0
"H"
"L"
0.00.51.01.52.02.5
VOUT
VOL
VSC
"H"
"L"
Time [ms]
50 mA / div.
GND
I
SHUNT
V
DD
5 V / div.
GND
5 V / div.
GND
3.0
"H"
"L"
0.00.51.01.52.02.5
V
OUT
V
OL
V
SC
"H"
"L"
Time [ms]
50 mA / div.
GND
I
SHUNT
11. 3 Load short-circuit status (ISHORT ˂ IOUT ˂ ILIM)
VDD = 2.7 V 10.0 V (0.1 V/s),
CL = 0.1 F, IOUT = 60 mA, Ta = 25°C
V
DD
5 V / div.
GND
5 V / div.
GND
3.0
"H"
"L"
0.0 0.5 1.0 1.5 2.0 2.5
V
OUT
V
OL
V
SC
"H"
"L"
Time [ms]
50 mA / div.
GND
I
SHUNT
FOR AUTOMOTIVE 105°C OPERATION CURRENT MONITOR HIGH SIDE SWITCH
Rev.1.2_01 S-19680 Series
21
12. Turning on (ILIM = 100 mA, ISHORT = 40 mA, IOPEN = 2.5 mA product)
12. 1 Load normal status (IOPEN ˂ IOUT ˂ ISHORT)
VDD = 5.0 V, VON / OFF = 0 V 5.0 V,
CIN = 0.1 F, CL = 0.1 F, IOUT = 20 mA, Ta = 25°C
12. 2 Load open status (IOUT ˂ IOPEN)
VDD = 5.0 V, VON / OFF = 0 V 5.0 V,
CIN = 0.1 F, CL = 0.1 F, IOUT = 0.01 mA, Ta = 25°C
V
ON / OFF
5 V / div.
GND
5 V / div.
GND
3.0
"H"
"L"
0.0 0.5 1.0 1.5 2.0 2.5
V
OUT
V
OL
V
SC
"H"
"L"
Time [ms]
V
ON / OFF
5 V / div.
GND
5 V / div.
GND
3.0
"H"
"L"
0.0 0.5 1.0 1.5 2.0 2.5
V
OUT
V
OL
V
SC
"H"
"L"
Time [ms]
12. 3 Load short-circuit status (ISHORT ˂ IOUT ˂ ILIM)
VDD = 5.0 V, VON / OFF = 0 V 5.0 V,
CIN = 0.1 F, CL = 0.1 F, IOUT = 60 mA, Ta = 25°C
V
ON / OFF
5 V / div.
GND
5 V / div.
GND
3.0
"H"
"L"
0.0 0.5 1.0 1.5 2.0 2.5
VOUT
VOL
VSC
"H"
"L"
Time [ms]
13. Turning off (ILIM = 100 mA, ISHORT = 40 mA, IOPEN = 2.5 mA product)
13. 1 Load normal status (IOPEN ˂ IOUT ˂ ISHORT)
VDD = 5.0 V, VON / OFF = 5.0 V 0 V,
CIN = 0.1 F, CL = 0.1 F, IOUT = 20 mA, Ta = 25°C
V
ON / OFF
5 V / div.
GND
5 V / div.
GND
3.0
"H"
"L"
0.0 0.5 1.0 1.5 2.0 2.5
VOUT
VOL
VSC
"H"
"L"
Time [ms]
FOR AUTOMOTIVE 105°C OPERATION CURRENT MONITOR HIGH SIDE SWITCH
S-19680 Series Rev.1.2_01
22
14. Current limit response characteristics
14. 1 ILIM = 100 mA product
VDD = 5.0 V, CIN = 0.1 F, CL = 0.1 F,
IOUT = 20 mA 130 mA, Ta = 25°C
V
DD
5 V / div.
GND
100 mA / div.
GND
3.00.00.51.01.52.02.5
I
SHUNT
V
OUT
Time [ms]
5 V / div.
GND
15. Load fluctuation characteristics
15. 1 IOPEN = 2.5 mA product
VDD = 5.0 V, CIN = 0.1 F, CL = 0.1 F,
IOUT = 0 mA 20 mA, Ta = 25°C
15. 2 ISHORT = 40 mA product
VDD = 5.0 V, CIN = 0.1 F, CL = 0.1 F,
IOUT = 20 mA 60 mA, Ta = 25°C
V
DD
5 V / div.
GND
50 mA / div.
GND
3.0
"H"
"L"
0.0 0.5 1.0 1.5 2.0 2.5
I
SHUNT
V
OL
V
SC
"H"
"L"
Time [ms]
V
DD
5 V / div.
GND
50 mA / div.
GND
3.0
"H"
"L"
0.0 0.5 1.0 1.5 2.0 2.5
I
SHUNT
V
OL
V
SC
"H"
"L"
Time [ms]
FOR AUTOMOTIVE 105°C OPERATION CURRENT MONITOR HIGH SIDE SWITCH
Rev.1.2_01 S-19680 Series
23
Thermal Characteristics
1. TMSOP-8
Tj = 150C max.
0
1.0
0.8
0.6
0.4
0.2
0 10050 150
Ambient temperature (Ta) [C]
Power dissipation (P
D
) [W]
Board 2
0.94 W
Board 1
0.78 W
Figure 16 Power Dissipation of Package (When Mounted on Board)
1. 1 Board 1
76.2 mm
114.3 mm
Figure 17
Table 11
Item Specification
Thermal resistance
value (
j
a) 160C/W
Size 114.3 mm
76.2 mm t1.6 mm
Material FR-4
Number of copper foil
layers 2
Copper foil layer
1 Land pattern and wiring for testing: t0.070 mm
2 
3 
4
74.2 mm
74.2 mm
t0.070 mm
Thermal via 
1. 2 Board 2
76.2 mm
114.3 mm
Figure 18
Table 12
Item Specification
Thermal resistance
value (
j
a) 133C/W
Size 114.3 mm
76.2 mm t1.6 mm
Material FR-4
Number of copper foil
layers 4
Copper foil layer
1 Land pattern and wiring for testing: t0.070 mm
2
74.2 mm
74.2 mm
t0.035 mm
3
74.2 mm
74.2 mm
t0.035 mm
4
74.2 mm
74.2 mm
t0.070 mm
Thermal via 
No.
TITLE
UNIT
ANGLE
ABLIC Inc.
2.90±0.2
85
0.2±0.1
0.65±0.1
0.13±0.1
14
TMSOP8-A-PKG Dimensions
No. FM008-A-P-SD-1.2
FM008-A-P-SD-1.2
mm
No.
TITLE
UNIT
ANGLE
ABLIC Inc.
0.30±0.05
1.00±0.1
1.05±0.05
1.5
2.00±0.05
4.00±0.1
3.25±0.05
4.00±0.1
1
4
58
TMSOP8-A-Carrier Tape
Feed direction
No. FM008-A-C-SD-2.0
FM008-A-C-SD-2.0
+0.1
-0
mm
No.
TITLE
UNIT
ANGLE
ABLIC Inc.
16.5max.
13.0±0.3
QTY. 4,000
(60°)
(60°)
13±0.2
Enlarged drawing in the central part
TMSOP8-A-Reel
No. FM008-A-R-SD-1.0
FM008-A-R-SD-1.0
mm
Disclaimers (Handling Precautions)
1. All the information described herein (product data, specifications, figures, tables, programs, algorithms and
application circuit examples, etc.) is current as of publishing date of this document and is subject to change without
notice.
2. The circuit examples and the usages described herein are for reference only, and do not guarantee the success of
any specific mass-production design.
ABLIC Inc. is not liable for any losses, damages, claims or demands caused by the reasons other than the products
described herein (hereinafter "the products") or infringement of third-party intellectual property right and any other
right due to the use of the information described herein.
3. ABLIC Inc. is not liable for any losses, damages, claims or demands caused by the incorrect information described
herein.
4. Be careful to use the products within their ranges described herein. Pay special attention for use to the absolute
maximum ratings, operation voltage range and electrical characteristics, etc.
ABLIC Inc. is not liable for any losses, damages, claims or demands caused by failures and / or accidents, etc. due to
the use of the products outside their specified ranges.
5. Before using the products, confirm their applications, and the laws and regulations of the region or country where they
are used and verify suitability, safety and other factors for the intended use.
6. When exporting the products, comply with the Foreign Exchange and Foreign Trade Act and all other export-related
laws, and follow the required procedures.
7. The products are strictly prohibited from using, providing or exporting for the purposes of the development of
weapons of mass destruction or military use. ABLIC Inc. is not liable for any losses, damages, claims or demands
caused by any provision or export to the person or entity who intends to develop, manufacture, use or store nuclear,
biological or chemical weapons or missiles, or use any other military purposes.
8. The products are not designed to be used as part of any device or equipment that may affect the human body, human
life, or assets (such as medical equipment, disaster prevention systems, security systems, combustion control
systems, infrastructure control systems, vehicle equipment, traffic systems, in-vehicle equipment, aviation equipment,
aerospace equipment, and nuclear-related equipment), excluding when specified for in-vehicle use or other uses by
ABLIC, Inc. Do not apply the products to the above listed devices and equipments.
ABLIC Inc. is not liable for any losses, damages, claims or demands caused by unauthorized or unspecified use of
the products.
9. In general, semiconductor products may fail or malfunction with some probability. The user of the products should
therefore take responsibility to give thorough consideration to safety design including redundancy, fire spread
prevention measures, and malfunction prevention to prevent accidents causing injury or death, fires and social
damage, etc. that may ensue from the products' failure or malfunction.
The entire system in which the products are used must be sufficiently evaluated and judged whether the products are
allowed to apply for the system on customer's own responsibility.
10. The products are not designed to be radiation-proof. The necessary radiation measures should be taken in the
product design by the customer depending on the intended use.
11. The products do not affect human health under normal use. However, they contain chemical substances and heavy
metals and should therefore not be put in the mouth. The fracture surfaces of wafers and chips may be sharp. Be
careful when handling these with the bare hands to prevent injuries, etc.
12. When disposing of the products, comply with the laws and ordinances of the country or region where they are used.
13. The information described herein contains copyright information and know-how of ABLIC Inc. The information
described herein does not convey any license under any intellectual property rights or any other rights belonging to
ABLIC Inc. or a third party. Reproduction or copying of the information from this document or any part of this
document described herein for the purpose of disclosing it to a third-party is strictly prohibited without the express
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14. For more details on the information described herein or any other questions, please contact ABLIC Inc.'s sales
representative.
15. This Disclaimers have been delivered in a text using the Japanese language, which text, despite any translations into
the English language and the Chinese language, shall be controlling.
2.4-2019.07
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