深圳市中立信电子科技有限公司

1 Features

1

1

• 90% High Efficiency Switch Mode 3-A Charger

• 3.9-V to 6.2-V Single Input USB-Compliant

Charger with 6.4-V Over-Voltage Protection

– USB Host or Charging Port D+/D- Detection

Compatible to USB Battery Charger Spec

(BC1.2)

– Supports Nonstandard 2-A/1-A Adapters

Detection (bq24297)

– Input Voltage and Current Limit Supports USB

2.0 and USB 3.0

– Input Current Limit: 100 mA, 150 mA, 500 mA,

900 mA, 1 A, 1.5 A, 2 A, and 3 A

• USB OTG with Adjustable Output 4.55 V to 5.5 V

at 1 A or 1.5 A

– Fast OTG Startup (22 ms Typ)

– 90% 5-V Boost Mode Efficiency

– Accurate ±15% Hiccup Mode Over-Current

Protection

• Narrow VDC (NVDC) Power Path Management

– Instant System On with No Battery or Deeply

Discharged Battery

– Ideal Diode Operation in Battery Supplement

Mode

2 Applications

• Tablet PC, Smart Phone, Internet Devices

• Portable Audio Speaker

• Handheld Computers, PDA, and POS

3 Description

The bq24296/bq24297 are highly-integrated switchmode

battery charge management and system power

path management devices for 1 cell Li-Ion and Lipolymer

batteries in a wide range of smart phone and

tablet applications.