1 Features

? 98.1 peak efficiency switched cap parallel

charger supporting 8-A fast charge

? Patent pending dual phase switched cap

architecture optimized for highest efficiency

– Input voltage is 2x battery voltage

– Output current is 2x of input current

– Reduces power loss across input cable

? Integrated 5-A Bypass Mode fast charge

– 21-mΩ Rdson charging path resistance to

support 5-A input and 5-A output charging

current

? Dual-input power mux controller for source

selection during fast charging and USB On-The-

Go (OTG)/ reverse TX Mode

? Provide gate drive signal for external OVP GaN

FETs and OVP N-FETs

? Support minimum 1.2V I2C pullup

? Support wide range of input voltage

– Up to 12.75-V operational input voltage

– Maximum 40-V input voltage with optional

external ACFET and 20-V without external

ACFET

? Parallel charging with synchronized dual

BQ25960H operations for up to 13-A charging

current

? Integrated programmable protection features for

safe operation

– Input overvoltage protection (BUSOVP) and

battery overvoltage protection (BATOVP)

– Input overcurrent protection (BUSOCP) and

battery overcurrent protection (BATOCP)

– Output overvoltage protection (VOUTOVP)

– Input undercurrent protection (BUSUCP) and

input reverse-current protection (BUSRCP) to

detect adapter unplug and prevent boost-back

– Battery and connector temperature monitoring

(TSBAT_FLT and TSBUS_FLT)

– Junction overtemperature protection

(TDIE_FLT)

? Programmable settings for system optimization

– Interrupts and interrupt masks

– ADC readings and configuration

– Alarm functions for host control

? Integrated 16-bit ADC for voltage, current, and

temperature monitoring

2 Applications

? Smartphone

? Tablet

3 Description

The BQ25960H is a 98.1 peak efficiency, 8-A

battery charging solution using switch capacitor

architecture for 1-cell Li-ion battery. The switched cap

architecture allows the cable current to be half the

charging current, reducing the cable power loss, and

limiting temperature rise. The dual-phase architecture

increases charging efficiency and reduces the input

and output cap requirements. When used with a main

charger such as BQ2561x or BQ2589x, the system

enables full charging cycle from trickle charge to

termination with low power loss at Constant Current

(CC) and Constant Voltage (CV) Mode.

The BQ25960H supports 5-A Bypass Mode charge

(previously called battery switch charge) through

internal MOSFETs. The Rdson in Bypass Mode

charging path is 21 mΩ for high-current operation.

The integrated Bypass Mode allows backward

compatibility of 5-V fast charging adapter to charge

1-cell battery.

The device supports dual input configuration through

integrated mux control and driver for external N-FETs.

It also allows single input with no external N-FET or

single N-FET.