BQ24190_15 Datasheet, PDF(28/52 Page) Texas Instruments – bq2419x I2C Controlled 4.5-A Single Cell USB/Adapter Charger with Narrow VDC Power Path Management and USB OTG

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BQ24190_15 Datasheet, PDF (28/52 Pages) Texas Instruments – bq2419x I2C Controlled 4.5-A Single Cell USB/Adapter Charger with Narrow VDC Power Path Management and USB OTG

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bq24190, bq24192, bq24192I

SLUSAW5B â JANUARY 2012 â REVISED DECEMBER 2014

www.ti.com

Device Functional Modes (continued)

If the charger device is in host mode, it will stay in HIZ state even after the USB100-mA source is removed, and

the adapter plugs in. During the HIZ state, REG00[7] is set HIGH and the system load is supplied from battery. It

is recommended that the processor host always checks if the charger IC is in HIZ state when it wakes up. The

host can write REG00[7] to 0 to exit HIZ state.

If the charger is in default mode, when the DC source is removed, the charger device will get out of HIZ state

automatically. When the input source plugs in again, the charger IC runs detection on the input source and

update the input current limit.

9.4.1.2 USB Timer when Charging from USB 100-mA Source

The total charging time in default mode from USB 100-mA source is limited by a 45-min max timer. At the end of

the timer, the device stops the converter and goes to HIZ.

9.5 Register Map

REG00

REG01

REG02

REG03

REG04

REG05

REG06

REG07

REG08

REG09

REG0A

Table 7. Register Map

Input Source Control Register

Power-On Configuration Register

Charge Current Control Register

Pre-Charge/Termination Current Control Register

Charge Voltage Control Register

Charge Termination/Timer Control Register

IR Compensation / Thermal Regulation Control Register

Misc Operation Control Register

System Status Register

Fault Register

Vender / Part / Revision Status Register

RESET

bq24190, bq24192: 00110000, or 30

bq24192I: 00111000, or 38

00011011, or 1B

bq24190, bq24192: 01100000, or 60

bq24192I: 00100000, or 20

00010001, or 11

bq24190, bq241192: 10110010, or B2

bq24192I: 10011010, or 9A

10011010, or 9A

00000011, or 03

01001011, or 4B

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Product Folder Links: bq24190 bq24192 bq24192I

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