Si9717
Vishay Siliconix
Battery Disconnect Switch
FEATURES
D
D
D
D
D
6- to 18-V Operation
Separate Logic Voltage Input
Undervoltage Lockout (UVL) @ V
L
= 3 V
Shutdown Control Capability
Safe 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
2
CBP
CP
7
10
3
4
5
A
Charge
Pump
6
11
1
8
9
16
Under
Voltage
Detect
Level
Shift
12
13
14
15
B
ENABLE
IN
GND
ABSOLUTE MAXIMUM RATINGS
Voltage Referenced to GND
V
A
, V
B
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
−0.3
to 20 V
V
IN
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
−0.3
to 10 V
V
ENABLE
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
−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
V
A
, V
B
(see note) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 to 18 V
V
IN
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0 to 5 V
I
AB
(continuous) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0 to 4 A
I
AB
x V
A
(continuous) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0 to 40 W
Minimum Cycle Time (turn-on to turn-on) . . . . . . . . . . . . . . . . . . . . . . . 10 ms
V
ENABLE
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0 to 5 V
Document Number: 70023
S-40743—Rev. D, 19-Apr-04
Operating Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0 to 70_C
Junction Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0 to 150_C
Notes:
a. is functional at V
A
, V
B
= 5 to 6 V with higher supply current. See I
A(on)
specification.
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1
Si9717
Vishay Siliconix
SPECIFICATIONS
Test Conditions
Unless Otherwise Specified
Parameter
Symbol
6 V
x
V
A
x
18 V
C
VDD
= 0.1
mF,
CP = 0.02
mF
Limits
d
Temp
a
Min
b
Typ
c
Max
b
Unit
On-Resistance
Leakage Current
IN Low Threshold
IN High Threshold
IN Input Current
Turn-On Delay IN to A or B
Turn-Off Delay IN to A or B
ENABLE Low Threshold
ENABLE High Threshold
ENABLE Input Current
Setup Time
from ENABLE to Switch
On-State
On State Drain
Off-State Drain
R
AB
I
AB(off)
V
IN(L)
V
IN(H)
I
IN(H)
t
ON(IN)
t
OFF(IN)
V
ENABLE(L)
V
ENABLE(H)
I
ENABLE(H)
t
ENABLE(H)
I
A( )
A(on)
I
A(off)
V
A
= 10 V, I
A
= 1 A
V
A
= 16 V, V
B
= 0 V
Room
Room
Full
Full
4.0
0.06
10
1
1
10
10
3.0
4.4
50
2.0
10
60
300
10
W
mA
V
mA
ms
V
mA
ms
V
IN
= 5.0 V
ENABLE = 5 V, V
A
= 10 V, R
L
= 5
W
Test Circuit 1
Full
Full
Full
Full
Full
V
ENABLE
= 5 V
V
A
= 10 V, V
IN
= 0 V, Test Circuit 2
V
A
= 6 V, V
IN
= 0 V, Test Circuit 2
AB Shorted, V
A
= 10 V, V
ENABLE
= 5 V
AB Shorted, V
A
= 5 V, V
ENABLE
= 5 V
AB Shorted, V
A
= 10 V, V
ENABLE
= 0 V
Full
Room
Full
Full
Full
Full
m
mA
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
10 V
A
V
IN
0V
50%
50%
B
5
W
V
B
90%
90%
Test Circuit 1
A
5V
5V
CP
0.02
mF
B
10
W
V
CP
V
ENABLE
0V
t
ON(IN)
t
OFF(IN)
50%
V
A
+ 8.5 V
t
ENABLE
Test Circuit 2
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Document Number: 70023
S-40743—Rev. D, 19-Apr-04
2
Si9717
Vishay Siliconix
PIN CONFIGURATION, TRUTH TABLE AND ORDERING INFORMATION
TRUTH TABLE
ENABLE
0
0
1
1
SOIC-16
IN
0
1
0
1
Switch Controller State
Inactive
Inactive
Set-Up
Active
Switch
X
X
Off
On
GND
A
A
A
A
ENABLE
1
2
3
4
5
6
7
8
Top View
16
15
14
13
12
11
10
9
GND
B
B
B
B
IN
CP
GND
ORDERING INFORMATION
Part Number
Si9717CY
Si9717CY-T1
Si9717CY-T1—E3
0 to 70_C
SOIC-16
CBP
GND
Temperature Range
Package
PIN DESCRIPTION
Pin Number
1, 8, 9, 16
2, 3, 4, 5
6
7
10
11
12, 13, 14, 15
Symbol
GND
A
ENABLE
CBP
CP
IN
B
Common connection for negative battery terminals.
A-terminal of the battery switch, bidirectional.
Description
Logic input, ENABLE. Activates charge pump and switch drive logic.
Internally generated logic power supply, V
DD
. Requires external bypass capacitor connected to pin 8.
Charge pump output terminal. Requires external capacitor connected to pin 9.
Logic input, IN. A high level turns on the switch.
B-terminal of the battery switch, bidirectional.
APPLICATION DIAGRAM
SOIC-16
GND
A
A
Battery
A
A
Logic (V
DD
)
100 nF
ENABLE
CBP
GND
1
2
3
4
5
6
7
8
Top View
Document Number: 70023
S-40743—Rev. D, 19-Apr-04
www.vishay.com
16
15
14
13
12
11
10
9
GND
B
B
B
B
IN (From Battery Controller)
CP
GND
20 nF
To dc/dc
3
Embedded System
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