LP3918

SNVS476D – AUGUST 2007 – REVISED MAY 2013

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Programming Information

Table 9. Register Address 8h'10: CHGCNTL1

BIT

NAME

FUNCTION

2

En_EOC

Enables the End Of Charge current level threshold detection.

When set to '0' the EOC is disabled.

The End Of Charge current threshold default setting is at 0.1C. This EOC value is set relative to C the set full

rate constant current. This threshold can be set to 0.1C, 0.15C, 0.2C or 0.25C bychanging the contents of the

PROG_EOC[1:0] register bits.

Table 10. Register Address 8h'12: CHGCNTL3

BIT

NAME

FUNCTION

2

Prog_EOC[0]

Set the End Of Charge Current.

See Table 8

3

Prog_EOC[1]

CHARGER FULL RATE CURRENT

Programming Information

Table 11. Register Address 8h'11: CHGCNTL2

Data BITs

HEX

NAME

FUNCTION

000[00000]

00

Prog_ICHG

50mA

000[00001]

01

100mA

000[00010]

02

150mA

000[00011]

03

200mA

000[00100]

04

250mA

000[00101]

05

300mA

000[00110]

06

350mA

000[00111]

07

400mA

000[01000]

08

450mA

000[01001]

09

500mA

000[01010]

0A

550mA

000[01011]

0B

600mA

000[01100]

0C

650mA

000[01101]

0D

700mA

000[01110]

0E

750mA

000[01111]

0F

800mA

000[10000]

10

850mA

000[10001]

11

900mA

000[10010]

12

950mA

TERMINATION AND RESTART

The termination and restart voltage levels are determined by the data in the VTERM[1:0] and PROG_VSTRT[1:0]

bits in the control register. The restart voltage is programmed relative to the selected termination voltage.

The Termination voltages available are 4.1V, 4.2V (default), 4.3V, and 4.4V.

The Restart voltages are determined relative to the termination voltage level and may be set to 50mV, 100mV,

150mV (default), and 200mV below the set termination voltage level.

22

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