CS2516 Datasheet, PDF (3/6 Pages) Cherry Semiconductor Corporation – Pulse-Load Battery Monitor

Electrical Characteristics: V_CC = 9V, R_P = 9.1 M½, C_T = 4.7µF, Cpw = 0.1µF, Rpw = 10M½,
0¡ ² T_A ² 85¡ unless otherwise specified
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
s Recommended Component Values
Rp Program Resistor
C_T Cycle Timer Capacitor
C_PW Pulse Stretcher Capacitor
R_PW Pulse Stretcher Resistor
1.0
9.1
4.7
22.0
0.01
0.10
1
10
PACKAGE PIN #
8L PDIP & SO Narrow
1
2
3
4
5
6
7
8
V_CC
C_T
1V
Load
Switch _VCC
PW ^0V
OUT
V_CC
Package Pin Description
PIN SYMBOL
FUNCTION
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
800
700
600
500
400
8.8 8.0 7.0 6.0 5.0 4.0 3.0 2.0 1.0
C_T Voltage
Timing Diagram
7.1V
33S
6.7V
V_CC
T_t
8V
4.6V
T_p
1.14ms
V_sat
BATT. OK
1V
1V
V_CC
T_d
1ms
2.5V
1.5V
0V
T_pw
510ms
V_sat
V_CC
BATT. LOW
3
UNIT
M½
µF
µF
M½