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| SAA1501T Datasheet, PDF (4/20 Pages) NXP Semiconductors – Battery charge level indicator | |||
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Philips Semiconductors
Battery charge level indicator
PINNING
SYMBOL PIN
DESCRIPTION
VCC
1 supply voltage
EN
2 enable output
Ccy
3 duty cycle capacitor output
CCC
4 charge counter capacitor output
Ich
5 maximum average charge current
setting input
Rref
RDCC
6 current reference resistor input
7 discharge current conversion resistor
input
RCCC
8 charge current conversion resistor
input
CSI
9 charge sense input
DSI
10 discharge sense input
RTEMP1
RTEMP2
Cosc
BUZ
11 temperature sensing resistor 1 input
12 temperature sensing resistor 2 input
13 oscillator capacitor input
14 buzzer output
FULL
15 battery full indication output
L100
16 100% segment indication output
L80
17 80% segment indication output
L60
18 60% segment indication output
L40
19 40% segment indication output
L20
20 20% segment indication output
BP
21 LCD back plane drive
BLI
22 battery low indicator LED output
POL
23 power-on LED output
GND
24 power ground
Objective speciï¬cation
SAA1501T
Fig.2 Pin configuration.
December 1994
4
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