DRV591
- ±3-A Maximum Output Current
- Low Supply Voltage Operation: 2.8 V to 5.5 V
- High Efficiency Generates Less Heat
- Over-Current and Thermal Protection
- Fault Indicators for Over-Current, Thermal and Under-Voltage Conditions
- Two Selectable Switching Frequencies
- Internal or External Clock Sync
- PWM Scheme Optimized for EMI
- 9×9 mm PowerPAD™ Quad Flatpack
- APPLICATIONS
- Thermoelectric Cooler (TEC) Driver
- Laser Diode Biasing
PowerPAD is a trademark of Texas Instruments.
The DRV591 is a high-efficiency, high-current power amplifier ideal for driving a wide variety of thermoelectric cooler elements in systems powered from 2.8 V to 5.5 V. PWM operation and low output stage on-resistance significantly decrease power dissipation in the amplifier.
The DRV591 is internally protected against thermal and current overloads. Logic-level fault indicators signal when the junction temperature has reached approximately 130°C to allow for system-level shutdown before the amplifiers internal thermal shutdown circuitry activates. The fault indicators also signal when an over-current event has occurred. If the over-current circuitry is tripped, the DRV591 automatically resets (see application information section for more details).
The PWM switching frequency may be set to 500 kHz or 100 kHz depending on system requirements. To eliminate external components, the gain is fixed at approximately 2.3 V/V.
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技术文档
类型 | 标题 | 下载最新的英语版本 | 日期 | |||
---|---|---|---|---|---|---|
* | 数据表 | +/-3 A High-Efficiency PWM Power Driver 数据表 (Rev. A) | 2002年 5月 9日 | |||
应用手册 | 所选封装材料的热学和电学性质 | 2008年 10月 16日 | ||||
用户指南 | DRV591 PWM Power Driver Evaluation Module User's Guide (Rev. A) | 2003年 5月 1日 |
设计和开发
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DRV591EVM — DRV591 评估模块 (EVM)
The DRV591 is a high-efficiency, high-current power amplifier ideal for driving a wide variety of thermo-electric cooler elements in systems powered from 2.8 V to 5.5 V. PWM operation and low output stage on-resistance significantly decrease power dissipation in the amplifier.
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封装 | 引脚 | 下载 |
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HLQFP (VFP) | 32 | 查看选项 |
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- RoHS
- REACH
- 器件标识
- 引脚镀层/焊球材料
- MSL 等级/回流焊峰值温度
- MTBF/时基故障估算
- 材料成分
- 鉴定摘要
- 持续可靠性监测
- 制造厂地点
- 封装厂地点
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