SEMICONDUCTOR
TECHNICAL DATA
MICROPOWER
UNDERVOLTAGE
SENSING CIRCUITS
WITH PROGRAMMABLE
OUTPUT DELAY
N SUFFIX
PLASTIC PACKAGE
CASE 1212
(SOT–23)
Order this document by MC33465/D
15
4
2
3
(Top View)
Reset
Input
Ground
CD
N/C
PIN CONNECTIONS
5
1
1
MOTOROLA ANALOG IC DEVICE DATA
The MC33465 series are micropower undervoltage sensing circuits that
are specifically designed for use with battery powered microprocessor based
systems, where extended battery life is required. A choice of several
threshold voltages from 0.9 V to 4.5 V are available. This device features a
very low quiescent bias current of 1.0 µA typical.
The MC33465 series features a highly accurate voltage reference, a
comparator with precise thresholds and built–in hysteresis to prevent erratic
reset operation, a choice of output configurations between open drain or
complementary, a time delayed output, which can be programmed by the
system designer, and guaranteed operation below 1.0 V with extremely low
standby current. This device is available in a SOT–23 5–pin surface mount
package.
Applications include direct monitoring of the MPU/logic power supply
used in appliance, automotive, industrial and portable equipment.
MC33465 Features:
•Extremely Low Standby Current of 1.0 µA at Vin = 3.5 V
•Wide Input Voltage Range (0.7 V to 10 V)
•Monitors Power Supply Voltages from 1.1 V to 5.0 V
•High Accuracy Detector Threshold (±2.5%)
•Two Reset Output Types (Open Drain or Complementary Drive)
•Programmable Output Delay by External Capacitor (100 ms typ. with
0.15 µF)
•Surface Mount Package (SOT–23 5–Pin)
•Convenient Tape and Reel (3000 per Reel)
ORDERING INFORMATION
Device Threshold
Voltage Type Operating
Temperature Range Package
MC33465N–09ATR 0.9
O
T30°80°C
SOT 23
MC33465N–20ATR 2.0 Open
T30°80°C
SOT 23
MC33465N–27ATR 2.7 Drain
T30°80°C
SOT 23
MC33465N–30ATR 3.0 Reset
T30°80°C
SOT 23
MC33465N–45ATR 4.5
Reset
TA= –30
°
to +80
°
C
SOT–23
MC33465N–09CTR 0.9
Cl
T
A = –
30°
t
o +
80°C
SOT
–
23
MC33465N–20CTR 2.0 Compl.
MC33465N–27CTR 2.7 MOS
MC33465N–30CTR 3.0 Reset
MC33465N–45CTR 4.5
Reset
Other voltages from 0.9 to 6.0 V, in 0.1 V increments, are available. Consult factory for
information.
This document contains information on a new product. Specifications and information herein
are subject to change without notice. Motorola, Inc. 1996 Rev 0
MC33465
2MOTOROLA ANALOG IC DEVICE DATA
Representative Block Diagrams
This device contains 28 active transistors.
MC33465N–YYATR
Open Drain Output Configuration MC33465N–YYCTR
Complementary Output Configuration
YY Denotes Threshold Voltage
Vref
2 Input
1
Reset
3 Gnd 5C
D
R
D
V
ref
2 Input
3 Gnd 5C
D
R
D
1 Reset
MAXIMUM RATINGS
Rating Symbol Value Unit
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
Power Input Supply Voltage
ÁÁÁÁ
ÁÁÁÁ
Vin
ÁÁÁÁÁ
ÁÁÁÁÁ
0 to 12
ÁÁÁ
ÁÁÁ
V
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
Reset Output Voltage
ÁÁÁÁ
ÁÁÁÁ
VO
ÁÁÁÁÁ
ÁÁÁÁÁ
–0.3 to 12
ÁÁÁ
ÁÁÁ
V
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
Reset Output Current (Source or Sink)
ÁÁÁÁ
ÁÁÁÁ
IO
ÁÁÁÁÁ
ÁÁÁÁÁ
70
ÁÁÁ
ÁÁÁ
mA
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
Power Dissipation and Thermal Characteristics
ÁÁÁÁ
ÁÁÁÁ
ÁÁÁÁÁ
ÁÁÁÁÁ
ÁÁÁ
ÁÁÁ
Maximum Power Dissipation at TA = 25°C PD150 mW
Case 1212 (SOT–23) N Suffix
Thermal Resistance, Junction–to–Ambient RθJA 667 °C/W
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
Operating Junction Temperature
ÁÁÁÁ
ÁÁÁÁ
TJ
ÁÁÁÁÁ
ÁÁÁÁÁ
+125
ÁÁÁ
ÁÁÁ
°C
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
Operating Ambient Temperature
ÁÁÁÁ
ÁÁÁÁ
TA
ÁÁÁÁÁ
ÁÁÁÁÁ
–30 to +80
ÁÁÁ
ÁÁÁ
°C
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
Storage Temperature Range
ÁÁÁÁ
ÁÁÁÁ
Tstg
ÁÁÁÁÁ
ÁÁÁÁÁ
–40 to +125
ÁÁÁ
ÁÁÁ
°C
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
Lead Temperature (Soldering)
ÁÁÁÁ
ÁÁÁÁ
Tsolder
ÁÁÁÁÁ
ÁÁÁÁÁ
260°C, 10 s
ÁÁÁ
ÁÁÁ
MC33465
3
MOTOROLA ANALOG IC DEVICE DATA
ELECTRICAL CHARACTERISTICS (For all values TA = 25°C (Note 1), unless otherwise noted.)
Characteristic Symbol Min Typ Max Unit
SENSE COMPARAT OR
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
Threshold Voltage
ÁÁÁÁÁ
ÁÁÁÁÁ
ÁÁÁÁ
ÁÁÁÁ
ÁÁÁÁ
ÁÁÁÁ
ÁÁÁÁ
ÁÁÁÁ
ÁÁÁ
ÁÁÁ
V
High to Low State Output (Vin Decreasing) VIL
09 Suffix 0.878 0.9 0.922
18 Suffix 1.755 1.8 1.845
27 Suffix 2.633 2.7 2.767
36 Suffix 3.51 3.6 3.69
45 Suffix 4.387 4.5 4.612
Threshold Hysteresis (Vin Increasing) VHV
09 Suffix 0.027 0.045 0.063
18 Suffix 0.054 0.09 0.126
27 Suffix 0.081 0.135 0.189
36 Suffix 0.108 0.18 0.252
45 Suffix 0.135 0.225 0.315
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
Threshold Voltage Temperature Coef ficient
ÁÁÁÁÁ
ÁÁÁÁÁ
TC
ÁÁÁÁ
ÁÁÁÁ
–
ÁÁÁÁ
ÁÁÁÁ
±100
ÁÁÁÁ
ÁÁÁÁ
–
ÁÁÁ
ÁÁÁ
PPM/°C
RESET OUTPUT
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
Output Voltage
ÁÁÁÁÁ
ÁÁÁÁÁ
ÁÁÁÁ
ÁÁÁÁ
ÁÁÁÁ
ÁÁÁÁ
ÁÁÁÁ
ÁÁÁÁ
ÁÁÁ
ÁÁÁ
V
High State (Complementary Output: Isource = 1.0 mA) VOH Vin – 2.1 Vin – 1.0 Vin
Low State (Complementary or Open Drain Output: Isink = 1.0 mA) VOL –0.25 0.5
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
Output Sink Current (V in = 1.5 V, VOL = 0.5 V)
ÁÁÁÁÁ
ÁÁÁÁÁ
IOL
ÁÁÁÁ
ÁÁÁÁ
1.0
ÁÁÁÁ
ÁÁÁÁ
2.0
ÁÁÁÁ
ÁÁÁÁ
–
ÁÁÁ
ÁÁÁ
mA
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
Output Source Current (Vin = 4.5 V, VOH = 2.4 V)
ÁÁÁÁÁ
ÁÁÁÁÁ
IOH
ÁÁÁÁ
ÁÁÁÁ
1.0
ÁÁÁÁ
ÁÁÁÁ
2.0
ÁÁÁÁ
ÁÁÁÁ
–
ÁÁÁ
ÁÁÁ
mA
DELAY OUTPUT
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
Output Sink Current (V in = 1.5 V, VOL = 0.5 V)
ÁÁÁÁÁ
ÁÁÁÁÁ
IOL
ÁÁÁÁ
ÁÁÁÁ
0.2
ÁÁÁÁ
ÁÁÁÁ
0.8
ÁÁÁÁ
ÁÁÁÁ
–
ÁÁÁ
ÁÁÁ
mA
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
Delay Resistance
ÁÁÁÁÁ
ÁÁÁÁÁ
RD
ÁÁÁÁ
ÁÁÁÁ
0.5
ÁÁÁÁ
ÁÁÁÁ
1.0
ÁÁÁÁ
ÁÁÁÁ
2.0
ÁÁÁ
ÁÁÁ
MΩ
TOTAL DEVICE
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
Operating Input Voltage Range
ÁÁÁÁÁ
ÁÁÁÁÁ
Vin
ÁÁÁÁ
ÁÁÁÁ
0.8 to 10
ÁÁÁÁ
ÁÁÁÁ
–
ÁÁÁÁ
ÁÁÁÁ
–
ÁÁÁ
ÁÁÁ
V
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
Quiescent Input Current
ÁÁÁÁÁ
ÁÁÁÁÁ
Iin
ÁÁÁÁ
ÁÁÁÁ
ÁÁÁÁ
ÁÁÁÁ
ÁÁÁÁ
ÁÁÁÁ
ÁÁÁ
ÁÁÁ
µA
Vin = 4.34 V – 5.5 11
Vin = 6.50 V – 1.3 3.9
NOTE: 1.Low duty pulse techniques are used during test to maintain junction temperature as close to ambient as possible.
MC33465
4MOTOROLA ANALOG IC DEVICE DATA
Vin, INPUT VOLTAGE (V)
IO, OUTPUT SINK CURRENT (mA)
Vin, INPUT VOLTAGE (V)
IO, OUTPUT CURRENT (mA) Vin, INPUT THRESHOLD VOLTAGE (V)
Vin, INPUT VOLTAGE (V)
0
4.0
–40
3.0
0
7.0
0
12
0
8.0
0
16
TA, AMBIENT TEMPERATURE (
°
C)
Vin, INPUT VOLTAGE (V)
Iin, SUPPLY CURRENT ( A) IO, OUTPUT SINK CURRENT (mA)
Figure 1. Reset Low State Sink Current versus
Output Voltage
VOL, LOW STATE OUTPUT VOLTAGE (V)
Figure 2. Output Voltage versus Input Voltage
MC33465N–45ATR
TA = 20
°
C
Figure 3. Input Current versus Input Voltage Figure 4. Comparator Input Threshold Voltage
versus Temperature
Figure 5. Reset Output Sink Current
versus Input Voltage Figure 6. Reset Output Source Current
versus Input Voltage
3.5
2.9
6.0
6.0
14
2.5
2.8
4.0
10
4.0
10
1.5
2.7
2.0
6.0
2.0
6.0
0
2.6
0
2.0
0
0
0
0.5 1.0 1.5 2.0 2.5 3.0 1.0 2.0 3.0 4.0 6.0
–202.0
2.0
04.0 206.0
4.0
40
2.0
8.0
8.0 12
80
3.0
10
TA = 25
°
C
TA = –30
°
C
TA = 80
°
C
MC33465N–45ATR
2.0
5.0
0.5
6.0 10
VO, OUTPUT VOLTAGE (V)
µ
25
°
C
–30
°
C
80
°
C
TA = –30
°
C
25
°
C
80
°
C
TA = 25
°
C
TA = –30
°
C
TA = 80
°
C
30
°
C
80
°
C, 20
°
C
MC33465N–45ATR
470 k
Ω
Pull–up
MC33465N–27ATR
VIL + VH
VIL
MC33465N–27ATR
VOL = 0.5 V MC33465N–27CTR Vin – VO = 2.1 V
Vin – VO = 1.5 V
Vin – VO = 1.0 V
Vin – VO = 0.5 V
2.85
5.0
5.0
12
2.75
3.0
3.0
8.0
2.65
1.0
1.0
4.0
3.0
2.0
8.0
1.0
4.0
7.0
1.5 2.50.5 1.0
60
VH
Vin = 2.5 V
2.0 V
1.5 V
MC33465
5
MOTOROLA ANALOG IC DEVICE DATA
Vin, INPUT VOLTAGE (V)
CD, SINK CURRENT (mA)
0
12
Figure 7. CD Sink Current versus Input Voltage
10
8.0
6.0
00.5 1.0 1.5 2.0 3.0
TA = –30
°
C
4.0
2.5 VCD, VOLTAGE (V)
Isink, SINK CURRENT (mA)
0
16
Figure 8. CD Sink Current versus CD Voltage
12
8.0
4.0
00.5 1.0 1.5 2.0 3.0
Vin = 2.5 V
2.0
2.5
TA, AMBIENT TEMPERATURE (
°
C)
RD, DELAY RESISTANCE (M )
–40
1.8
Figure 9. Delay Resistance versus Temperature
1.4
1.0
0.8
0.4 –20 0 20 40 80
0.6
60
V
–40
1.9
Figure 10. Detector Threshold versus Temperature
1.7
1.5
1.4
1.2 –20 0 20 40 80
MC33465N–27ATR
1.3
60
CD, DELAY CAPACITANCE (
µ
F)
0.0001
1000
Figure 11. Output Delay Time versus
Delay Capacitance
100
10
1.0
0.01 0.001 0.01 0.1
0.1
25
°
C
80
°
C
MC33465N–27ATR
VOL = 0.5 V
2.0
14
10
6.0 Vin = 2.0 V
Vin = 1.5 V
1.6
1.2
Ω
TA, AMBIENT TEMPERATURE (
°
C)
Vin = 2.97 V
1.8
1.6
tD: Output Switch
Low to High
tD: Output Switch
High to Low
tp, OUTPUT DELAY TIME (ms)
th(D), DETECT OR THRESHOLD VOLTAGE (V)
MC33465
6MOTOROLA ANALOG IC DEVICE DATA
Figure 12. Typical Open Drain Application
2 Input
1
Reset
Gnd Gnd
R
VDD
Reset
VDD
CPU
5
CD
CD
MC33465
Series
Figure 13. Typical Complementary Output Application
2 Input
1
Reset
Gnd Gnd
VDD
Reset
VDD
CPU
5
CD
CD
MC33465
Series
3
3
APPLICATION CIRCUIT INFORMATION
The MC33465 series are micropower undervoltage
sensing circuits which offer a programmable time delayed
output with the choice of either complementary output drive
or open drain output configurations. Figure 14 shows the
timing relationships between the input voltage and the
resulting circuit waveforms. When the input voltage (Vin)
exceeds the sense comparator threshold, the timing
capacitor is allowed to charge through the internal delay
resistor. When the output inverting driver threshold is
exceeded, the Reset output switches from a logic “0” to a
logic “1”. The top curve of Figure 11 provides the nominal
delay time for a given value of delay capacitance. When Vin
drops below the comparator threshold minus hysteresis
voltage, the delay capacitor discharges. When the
capacitance voltage drops below the inverting drive
threshold, the output switches from a logic “1” to a logic “0”.
The bottom curve in Figure 11 provides typical delay time for
given delay capacitance values. The inverting driver
threshold voltage is typically about Vin/2, as shown in
Figure 10.
MC33465
7
MOTOROLA ANALOG IC DEVICE DATA
Figure 14. Timing Waveforms
tD
Vin
VIL + VH
VIL
Input Voltage
Delay Capacitor
Vin
0 V
Reset Output
tD
L–H L–H
tD
H–L
tD
H–L
MC33465
8MOTOROLA ANALOG IC DEVICE DATA
N SUFFIX
PLASTIC PACKAGE
CASE 1212–01
(SOT–23)
ISSUE O
OUTLINE DIMENSIONS
DIM MIN MAX
MILLIMETERS
A1 0.00 0.10
A2 1.00 1.30
B0.30 0.50
C0.10 0.25
D2.80 3.00
E2.50 3.10
E1 1.50 1.80
e0.95 BSC
e1 1.90 BSC
L
L1 0.45 0.75
NOTES:
1. DIMENSIONS ARE IN MILLIMETERS.
2. INTERPRET DIMENSIONS AND TOLERANCES
PER ASME Y14.5M, 1994.
3. DATUM C IS A SEATING PLANE.
A
1
5
23
4
D
E1
B
L1
E
e
e1
C
M
0.10 C S
BS
A
B5X
A2
A1
S
0.05
C
L
0.20 –––
Motorola reserves the right to make changes without further notice to any products herein. Motorola makes no warranty, representation or guarantee regarding
the suitability of its products for any particular purpose, nor does Motorola assume any liability arising out of the application or use of any product or circuit, and
specifically disclaims any and all liability, including without limitation consequential or incidental damages. “Typical” parameters which may be provided in Motorola
data sheets and/or specifications can and do vary in different applications and actual performance may vary over time. All operating parameters, including “Typicals”
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MC33465/D
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