CS2516
Electrical Characteristics: V
CC
= 9V, R
P
= 9.1 M�½, C
T
= 4.7µF, Cpw = 0.1µF, Rpw = 10M�½,
0¡ ² T
A
² 85¡ unless otherwise specified
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
s
Recommended Component Values
Rp Program Resistor
C
T
Cycle Timer Capacitor
C
PW
Pulse Stretcher Capacitor
R
PW
Pulse Stretcher Resistor
Package Pin Description
PACKAGE PIN #
PIN SYMBOL
FUNCTION
1.0
4.7
0.01
1
9.1
22.0
0.10
10
M�½
µF
µF
M�½
8L PDIP & SO Narrow
1
2
3
4
5
6
7
8
R
P
SENSE
C
T
COM
Load Switch
OUT
PW
V
CC
Test period programming resistor.
Voltage sense comparator input.
Test period, duration programming capacitor.
Common negative
Collector of pulse loading NPN transistor.
Alarm Pulse width-stretcher output
Output pulse-width programming RC.
Power source.
Typical Performance Characteristics
C
T
Discharge Impedance vs C
T
Voltage (Typ +25¡C)
1000
900
Impedance,
W
800
700
600
500
400
8.8
8.0
7.0
6.0
5.0
4.0
C
T
Voltage
3.0
2.0
1.0
Timing Diagram
V
CC
7.1V
8V
C
T
1V
V
CC
T
p
V
sat
T
d
PW
OUT
0V
T
pw
V
CC
BATT. OK
V
sat
BATT. LOW
1ms
2.5V
1.5V
510ms
V
CC
0V
4.6V
1.14ms
1V
1V
V
CC
33S
T
t
6.7V
V
CC
Load
Switch
3
CHERRY [ CHERRY SEMICONDUCTOR CORPORATION ]
