BC3770 datasheet(33/45 Pages) FREESCALE

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Analog Integrated Circuit Device Data



Freescale Semiconductor

BC3770

5.5.5.10 CHGCTRL1: Charger Control Register 1

5.5.5.11 CHGCTRL2: Charger Control Register 2

Address (hex)

Mode

Reset Condition:

VSYS

VSYS_UVLO

Reset: 0x2F

R/W

Bit

Name

Reset

Description

Reserved

Write “0”

6:4

AICLTH

010

Program the AICL Threshold on VBUS

0x0: 4.3 V

0x1: 4.4 V

0x2: 4.5 V

0x3: 4.6 V

0x4: 4.7 V

0x5: 4.8 V

0x6: 4.9 V

0x7: 4.9 V

AUTOSTOP

Charger AUTOSTOP Control

0: Charger is on continuously and stays in CV mode after top-off timer is expired.

1: Automatic stop is enabled. After top-off timer is expired, the charger turns off and

goes into DONE state.

AICLEN

Enable/Disable the function of Adaptive-Input Current Limit on VBUS

0: Disable

1: Enable

1:0

PRECHG

Program the Pre-charge current in Pre-charge mode

00: 150 mA

01: 250 mA

10: 350 mA

11: 450 mA

Address (hex)

mOde

Reset Condition:

VSYS

VSYS_UVLO

Reset: 0x08

R/W

Bit

Name

Reset

Description

7:6

Reserved

Write “00”

5:0

FASTCHG

00 1000

Program the fast-charge current IFAST_CHG, in mA

Max current is limited to 2.0 A (all bits above 10 0110 set to 2.0 A)

500 mA Default

IFAST_CHG = [100 mA + Dec. (bit 5:0) * 50 mA] (mA)

i.g: 500 mA= 100 mA + Dec. 8 (Bin 001000) * 50 mA

BC3770 Datasheet(PDF) 33 Page - Freescale Semiconductor, Inc

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