BQ24250C_15 Datasheet, PDF (31/46 Pages) Texas Instruments – bq24250C 2A Single Input I2C, Standalone Switch-Mode Li-Ion Battery Charger with Power-Path Management

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bq24250C
SLUSBY7 – JULY 2014
Register #5
Memory location: 04, Reset state: xx00 x010
BIT
B7(MSB)
B6
B5
B4
B3
B2
B1
B0(LSB)
NAME
LOOP_STATUS1 ⁽¹⁾
LOOP_STATUS0 ⁽¹⁾
LOW_CHG
DPDM_EN
CE_STATUS
V_{INDPM_2} ⁽²⁾
V_{INDPM_1} ⁽²⁾
V_{INDPM_0} ⁽²⁾
READ/WRITE
Read Only
Read Only
Read/Write
Read/Write
Read Only
Read/Write
Read/Write
Read/Write
FUNCTION
00 – No loop is active that slows down timer
01 – V_{IN_DPM} regulation loop is active
10 – Input current limit loop is active
11 – Thermal regulation loop is active
0 – Normal charge current set by 03h
1 – Low charge current setting 330mA (default 0)
0 – Bit returns to 0 after D+/D– detection is performed
1 – Force D+/D– detection (default 0)
0 – CE low
1 – CE high
Input V_IN-DPM voltage: 320mV (default 0)
Input V_IN-DPM voltage: 160mV (default 1)
Input V_IN-DPM voltage: 80mV (default 0)
(1) LOOP_STATUS bits show if there are any loop is active that slow down the safety timer. If a status occurs, these bits announce the
status and do not clear until read. If more than one occurs, the first one is shown.
(2) VIN-DPM voltage offset is 4.20V and default V_{IN_DPM} threshold is 4.36V.
LOOP_STATUS
Provides the status of the active regulation loop. The charge controller allows for only
one loop can regulate at a time.
LOW_CHG
When set to a ‘1’, the charge current is reduced 330mA independent of the charge
current setting in register 0x03. When set to ‘0’, the charge current is set by register
0x03.
DPDM_EN
Forces a D+/D- detection routine to be executed once a ‘1’ is written. This is
independent of the input being supplied.
CE_STATUS
Provides the status of the CE pin level. If the CE pin is forced high, this bit returns a
‘1’. If the CE pin is forced low, this bit returns a ‘0’.
V_INDPM
Sets the input VDPM level.
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