Si9717
Vishay Siliconix
Document Number: 70023
S-40743—Rev. D, 19-Apr-04
www.vishay.com
1
Battery Disconnect Switch
FEATURES
D6- to 18-V Operation
DSeparate Logic Voltage Input
DUndervoltage Lockout (UVL) @ VL = 3 V
DShutdown Control Capability
DSafe Power Down
DESCRIPTION
The is a reverse blocking switch for battery disconnect
applications. It is an integrated solution for multiple battery
technology designs or designs that require isolation from the
power bus during charging. The is available in a 16-pin SOIC
package and is rated for the commercial temperature range of
0 to 70_C.
The Si9717 is available in both standard and lead (Pb)-free
packages.
FUNCTIONAL BLOCK DIAGRAM
Level
Shift
Charge
Pump
CBP
CP
ENABLE
GND
A
B
IN
Under
Voltage
Detect
7
10
6
11
1
8
9
16
3
4
5
2
13
14
15
12
ABSOLUTE MAXIMUM RATINGS
Voltage Referenced to GND
VA, VB−0.3 to 20 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
VIN −0.3 to 10 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
VENABLE −0.3 to 10 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Storage Temperature −65 to 125_C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power Dissipation 2 W. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Notes: Device mounted with all leads soldered to PC board.
RECOMMENDED OPERATING RANGE
VA, VB (see note) 6 to 18 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
VIN 0 to 5 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
IAB (continuous) 0 to 4 A. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
IAB x VA (continuous) 0 to 40 W. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Minimum Cycle Time (turn-on to turn-on) 10 ms. . . . . . . . . . . . . . . . . . . . . . .
VENABLE 0 to 5 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operating Temperature 0 to 70_C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Junction Temperature 0 to 150_C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Notes:
a. is functional at VA, VB = 5 to 6 V with higher supply current. See IA(on)
specification.
Si9717
Vishay Siliconix
www.vishay.com
2Document Number: 70023
S-40743—Rev. D, 19-Apr-04
SPECIFICATIONS
Test Conditions
Unless Otherwise S
p
ecified Limitsd
Parameter Symbol
Unless Otherwise Specified
6 V x VA x 18 V
CVDD = 0.1 mF, CP = 0.02 mFTempaMinbTypcMaxbUnit
On-Resistance RAB VA = 10 V, IA = 1 A Room 0.06 W
Leakage Current IAB(off) VA = 16 V, VB = 0 V Room 10 mA
IN Low Threshold VIN(L) Full 1
V
IN High Threshold VIN(H) Full 4.0 V
IN Input Current IIN(H) VIN = 5.0 V Full 1 mA
Turn-On Delay IN to A or B tON(IN) ENABLE = 5 V, VA = 10 V, RL = 5 WFull 10
ms
Turn-Off Delay IN to A or B tOFF(IN)
ENABLE = 5 V
,
VA = 10 V
,
RL = 5 W
Test Circuit 1 Full 10 ms
ENABLE Low Threshold VENABLE(L) Full 3.0
V
ENABLE High Threshold VENABLE(H) Full 4.4 V
ENABLE Input Current IENABLE(H) VENABLE = 5 V Full 50 mA
Setu
p
Time
tENABLE(H)
VA = 10 V, VIN = 0 V, Test Circuit 2 Room 2.0
ms
Setup Time
from ENABLE to Switch tENABLE(H) VA = 6 V, VIN = 0 V, Test Circuit 2 Full 10 ms
On State Drain
IA( )
AB Shorted, VA = 10 V, VENABLE = 5 V Full 60
On-State Drain IA(on) AB Shorted, VA = 5 V, VENABLE = 5 V Full 300 mA
Off-State Drain IA(off) AB Shorted, VA = 10 V, VENABLE = 0 V Full 10
m
Notes:
a. Room = 25_C, Full = as determined by the operating temperature suffix.
b. The algebraic convention whereby the most negative value is a minimum and the most positive a maximum, is used in this data sheet.
c. Typical values are for DESIGN AID ONLY, not guaranteed nor subject to production testing.
d. Tested at room temperature, high temperature guaranteed by statistical data correlation techniques.
TEST CIRCUITS
5 W
10 V
90% 90%
50% 50%
A
B
tON(IN) tOFF(IN)
VIN
VB
0 V
10 W
VA + 8.5 V
50%
A
B
tENABLE
VENABLE
0 V
0.02 mF
Test Circuit 1
Test Circuit 2
5 V CP
5 V
VCP
13
GND GND
AB
AB
AB
A
ENABLE
CBP
B
IN
CP
GND GND
SOIC-16
14
15
16
2
3
4
1
10
11
125
6
7
9
8
Top View
Si9717
Vishay Siliconix
Document Number: 70023
S-40743—Rev. D, 19-Apr-04
www.vishay.com
3
PIN CONFIGURATION, TRUTH TABLE AND ORDERING INFORMATION
TRUTH TABLE
ENABLE IN Switch Controller State Switch
0 0 Inactive X
0 1 Inactive X
1 0 Set-Up Off
1 1 Active On
ORDERING INFORMATION
Part Number Temperature Range Package
Si9717CY
Si9717CY-T1 0 to 70_C SOIC-16
Si9717CY-T1—E3
PIN DESCRIPTION
Pin Number Symbol Description
1, 8, 9, 16 GND Common connection for negative battery terminals.
2, 3, 4, 5 AA-terminal of the battery switch, bidirectional.
6 ENABLE Logic input, ENABLE. Activates charge pump and switch drive logic.
7 CBP Internally generated logic power supply, VDD. Requires external bypass capacitor connected to pin 8.
10 CP Charge pump output terminal. Requires external capacitor connected to pin 9.
11 IN Logic input, IN. A high level turns on the switch.
12, 13, 14, 15 BB-terminal of the battery switch, bidirectional.
APPLICATION DIAGRAM
13
GND GND
AB
AB
AB
A
ENABLE
CBP
B
IN
CP
GND GND
SOIC-16
14
15
16
2
3
4
1
10
11
125
6
7
9
8
Top View
Battery To dc/dc
20 nF100 nF
Logic (VDD) (From Battery Controller)
Document Number: 91000 www.vishay.com
Revision: 18-Jul-08 1
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