One-Cell Li-Ion Charger - Texas Instruments
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bq24153A, bq24156A bq24158, bq24159
SLUSAB0D – OCTOBER 2010 – REVISED APRIL 2016
bq2415x Fully Integrated Switch-Mode One-Cell Li-Ion Charger With Full USB Compliance and USB-OTG Support
bq24153A, bq24156A, bq24159
1 Features
•1 Charge Faster than Linear Chargers • High-Accuracy Voltage and Current Regulation
– Input Current Regulation Accuracy: ±5% (100 mA and 500 mA)
– Charge Voltage Regulation Accuracy: ±0.
5% (25°C), ±1% (0°C to 125°C)
– Charge Current Regulation Accuracy: ±5% • Input Voltage Based Dynamic Power
Management (VIN DPM) • 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 • 20-V Absolute Maximum Input Voltage Rating • 9-V Maximum Operating Input Voltage-
bq24156A/9 • 6-V Maximum Operating Input Voltage-
bq24153A/8 • Built-In Input Current Sensing and Limiting • Integrated Power FETs for Up To 1.
55-A Charge
Rate • Programmable Charge Parameters through I2C™
Compatible Interface (up to 3.
4 Mbps): – Input Current Limit – VIN DPM Threshold – Fast-Charge/Termination Current – Charge Regulation Voltage (3.
5 V to 4.
44 V) – Low Charge Current Mode Enable/Disable – Safety Timer with Reset Control – Termination Enable/Disable • Support up to 1.
55 A Charge Current Using 55mΩ Sensing Resistor • Synchronous Fixed-Frequency PWM Controller Operating at 3 MHz With 0% to 99.
5% Duty Cycle • Automatic High Impedance Mode for Low Power Consumption • Robust Protection – Reverse Leakage Protection Prevents Battery
Drainage – Thermal Regulation and Protection – Input/Output Overvoltage Protection
1
• Status Output for Charging and Faults • USB Friendly Boot-Up Sequence • Automatic Charging • Power Up System without Battery bq24158/9 • Boost Mode Operation for USB OTG:
(bq24153A/8 only) – Input Voltage Range (from Battery): 2.
5 V to
4...
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