TPS65200YFFR

具有 WLED 驱动器和电流并联监控器的锂离子电池充电器 36-DSBGA -40 to 85

Description

The TPS65200 device integrates a high-efficiency, USB-friendly switched-mode charger with OTG support for single-cell Li-ion and Li-polymer batteries, D+D- detection, a 50-mA fixed-voltage LDO, a high efficiency WLED boost converter, and high-accuracy current-shunt monitor into a single chip.

Features

• Battery Switching Charger, WLED Driver, and Current Shunt Monitor in a Single Package

• Battery Charger

– Charges Faster Than Linear Chargers

– High-Accuracy Voltage and Current Regulation

– Input Current Regulation Accuracy: ±5% 100 mA, 500 mA

– Charge Voltage Regulation Accuracy:

    ±0.5% 25°C

    ±1% 0 - 125°C

– Charge Current Regulation Accuracy: ±5%

– Bad Adaptor Detection and Rejection

– Safety Limit Register for Maximum Charge Voltage and Current Limiting

– High-Efficiency Mini-USB/AC Battery Charger for Single-Cell Li-Ion and Li-Polymer Battery Packs

– Built-In Input Current Sensing and Limiting

– Integrated Power FETs for Up to 1.25-A Charge Rate

– Programmable Charge Parameters through I2C Interface Up to 400 Kbps:

– Input Current

– Fast-Charge/Termination Current

– Charge Voltage 3.5 V - 4.44 V

– Safety Timer

– Termination Enable

– Synchronous Fixed-Frequency PWM Controller Operating at 3 MHz With 0% to 99.5% Duty Cycle

– Safety Timer With Reset Control

– Reverse Leakage Protection Prevents Battery Drainage

– Thermal Regulation and Protection

– Input/Output Overvoltage Protection

– Automatic Charging

– Boost Mode Operation for USB OTG

– Input Voltage Range VSYS: 2.5 V to 4.5 V

– Output Voltage for VBUS: 5 V

• WLED Driver

– 35-V Open LED Protection for Up to 8 LEDs

– 200-mV Reference Voltage With ±2% Accuracy

– Built-In Soft Start for WLED Boost

– Up to 90% Efficiency

• Current Shunt Monitor

– Fixed Gain of 25 V/V

– Input Referred Offset Voltage Less Than ±40 µV Typical Enables Use of Shunt Resistors as Low as 20 mΩ

– Buffered Reference Voltage

• Package

– 36-Ball, 0.4-mm Pitch DSBGA Package

Applications

• Mobile Phones and Smart Phones

• MP3 Players

• Portable Navigation Devices

• Handheld Devices