BQ25185
- 1-A linear battery charger
- 3.0-V to 18-V input voltage operating range
- 25-V tolerant input voltage
- External resistor programmable operation:
- ILIM/VSET sets battery regulation voltage to 3.6V, 3.65 V, 4.02 V, 4.1V, 4.2 V, 4.35 V, or 4.4 V
- ILIM/VSET sets input current limit to 100 mA, 500 mA, or 1100 mA
- ISET to set charge current from 5 mA to 1 A
- Li-ion, Li-Poly, and LiFePO4 chemistries support
- 115-mΩ battery FET ON resistance
- Up to 3.125-A discharge current to support high system loads
- Power path management for powering the system and charging the battery
- Regulated system voltage (SYS) at 4.5 V
- Configurable input current limit
- USB Suspend mode supported
- Battery Tracking input voltage dynamic power management (VINDPM) for high impedance input sources
- Dynamic power path management optimizes charging from weak adapters
- Ultra low quiescent current
- 4-µA in Battery Only mode
- 30-µA Input adapter Iq in sleep mode
- 3.2-µA Battery discharge current in Factory Mode
- Integrated fault protection
- Input overvoltage protection (VIN_OVP)
- Battery undervoltage protection (BUVLO)
- Battery short protection (BATSC)
- Battery overcurrent protection (BATOCP)
- Input current limit protection (ILIM)
- Thermal regulation (TREG) and thermal shutdown (TSHUT)
- Battery thermal fault protection (TS)
- Safety timer fault
- ISET and ILIM/VSET pin short/open protection.
The BQ25185 is a linear battery charger IC focusing on small solution size and low quiescent current for extending battery life. The device is available in a leadless, small package with a thermal pad giving thermal performance. The device can support up to 1-A charging and system loads of up to 3.125 A.
The battery is charged using a standard Li-ion or LiFePO4 charge profile with three phases: precharge, constant current and constant voltage. Thermal regulation provides the maximum charge current while managing the device temperature. The charger is also optimized for battery to battery charging with 3-V minimum input voltage operation and can withstand 25-V absolute maximum line transients. The device integrates a single push-button input to reduce the total solution footprint.
技術文件
| 類型 | 標題 | 日期 | ||
|---|---|---|---|---|
| * | Data sheet | BQ25185 1-Cell, 1-A Standalone Linear Battery Charger with Power Path, Factory Mode, and Battery Tracking VINDPM datasheet | PDF | HTML | 2023年 10月 23日 |
| Certificate | BQ25185EVM EU Declaration of Conformity (DoC) | 2023年 10月 26日 | ||
| EVM User's guide | BQ25185 EVM User's Guide | PDF | HTML | 2023年 10月 20日 |
設計與開發
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BQ25185EVM — BQ25185 evaluation module for 1-cell, 1-A stand-alone linear battery charger
The BQ25185 evaluation model (EVM) is designed to evaluate and test various operating modes of the BQ25185. The EVM is designed for a complete test friendly evaluation with visual indicators. The BQ25185 is an integrated battery charge management IC that integrates most common functions for solar (...)
| 封裝 | 引腳 | 下載 |
|---|---|---|
| WSON (DLH) | 10 | 檢視選項 |
訂購與品質
- RoHS
- REACH
- 產品標記
- 鉛塗層/球物料
- MSL 等級/回焊峰值
- MTBF/FIT 估算值
- 材料內容
- 資格摘要
- 進行中可靠性監測
- 晶圓廠位置
- 組裝地點
建議產品可能具有與此 TI 產品相關的參數、評估模組或參考設計。