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BQ24075RGTT


1.5A Linear Battery Charger with DPPM, USB 100/500mA, 28V OVP, VQFN-16

6377

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制造商零件:

BQ24075RGTT

包装:

VQFN-16 (3.0 x 3.0 x 0.9 mm)

品牌:
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说明

产品概览

The BQ24075RGTT from Texas Instruments is a standalone 1-cell 1.5A linear battery charger with dynamic power path management (DPPM). It provides autonomous charging for single-cell Li-Ion batteries from a USB or adapter source. The device features input overvoltage protection up to 28V, USB compliance with 100mA/500mA input current selection, and NTC thermistor input for temperature-qualified charging in a compact VQFN-16 package.

主要规格

Charging Topology Linear (single-cell Li-Ion)
输入电压范围 4.35V to 6.4V operating, 28V OVP
Battery Voltage 4.2V (Li-Ion)
Charge Current Up to 1.5A (programmable)
Termination Current Programmable
Input Current Options 100mA / 500mA (USB)
Battery Disconnect SYSOFF feature
工作温度 -40C to +85C
包装 VQFN-16 (3x3mm)

特点

  • Dynamic Power Path Management (DPPM) for simultaneous charge and system load
  • VIN-DPM for input current limiting from adapter sources
  • 28V input overvoltage protection
  • USB compliant with 100mA/500mA input selection
  • NTC thermistor input for temperature-qualified charging
  • Programmable charge current and termination
  • Battery disconnect (SYSOFF) function
  • Thermal regulation and shutdown protection
  • Charge status outputs for LED or host interface

应用

  • TWS charging cases
  • Portable medical devices
  • Smart watches and fitness bands
  • Video doorbells
  • Gaming accessories

The BQ24075RGTT from Texas Instruments is a standalone single-cell 1.5A linear battery charger with dynamic power path management (DPPM). It autonomously charges Li-Ion batteries from USB or adapter sources with input overvoltage protection up to 28V. The DPPM feature maintains system power priority over charging current, preventing system undervoltage during heavy load conditions. USB compliance with selectable 100mA/500mA input current ensures compatibility with USB hosts. NTC thermistor input enables JEITA temperature-qualified charging for battery safety.

The BQ24075RGTT uses a linear regulator architecture with an internal pass FET between the input and battery. The DPPM circuit monitors the system voltage at the OUT pin. When the system voltage drops below the DPPM threshold due to heavy load, the charger reduces the charge current to maintain system voltage. The VIN-DPM circuit limits input current when the adapter cannot supply the programmed current. The NTC input monitors battery temperature and adjusts the charge voltage and current according to JEITA guidelines. When the battery voltage reaches 4.2V and the charge current drops below the termination threshold, charging terminates. The SYSOFF pin disconnects the battery from the system for shipping or storage.

针脚 名称 类型 功能
1 TS 输入 NTC thermistor input for temperature monitoring
2 STAT2 输出 Charge status output 2
3 STAT1 输出 Charge status output 1
4 SYSOFF 输入 Battery disconnect control (active high)
5 PG 输出 Power good status (open drain)
6 CE 输入 Charge enable (active low)
7 ISET2 输入 USB 100mA/500mA current selection
8 ILIM 输入 Input current limit programming resistor
9 CHG 输出 Charge status output (open drain)
10 BAT 电源 Battery connection / charge output
11 BAT 电源 Battery connection
12 出局 输出 System output (power path)
13 出局 输出 System output
14 IN 电源 Input voltage (4.35-6.4V)
15 IN 电源 Input voltage
16 接地 电源 地面
垫子 EP 热能 Exposed thermal pad (connect to GND)
  • TWS earbuds and smart watch charging cases
  • Portable medical device battery charging
  • Video doorbell and security camera power
  • Gaming controller and accessory charging
  • USB-powered consumer electronics battery management
制造商 部件编号 包装 说明
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德州仪器 BQ24040DSQR WQFN-10 Single-input 1A charger
微型芯片 MCP73871T-2CCI/ML QFN-20 USB charger with power path
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发货与付款

我们从合作供应链采购的所有电子元件都经过严格的进货检验。通过仔细的测试,我们确保交付给客户的所有产品都是原装正品,符合质量要求。此外,我们还保存完整的检验记录,使整个供应链流程清晰可查。.

认证
我们获得了多项专业认证,并建立了自己的专业检测实验室,确保交付给客户的每一件产品都符合最高质量要求。我们严格按照流程进行检测,确保产品质量稳定、参数准确。为保证原装正品,我们还与可靠的第三方检测机构合作,进行严格的质量检测。我们始终高度重视质量,完全符合行业标准、相关法规和 ISO 9001:2015 的要求。.

服务与包装

我们从合作供应链采购的所有电子元件都经过严格的进货检验。通过仔细的测试,我们确保交付给客户的所有产品都是原装正品,符合质量要求。此外,我们还保存完整的检验记录,使整个供应链流程清晰可查。.

认证
我们获得了多项专业认证,并建立了自己的专业检测实验室,确保交付给客户的每一件产品都符合最高质量要求。我们严格按照流程进行检测,确保产品质量稳定、参数准确。为保证原装正品,我们还与可靠的第三方检测机构合作,进行严格的质量检测。我们始终高度重视质量,完全符合行业标准、相关法规和 ISO 9001:2015 的要求。.