3 -A高效率PWM电源驱动器 3−A HIGH−EFFICIENCY PWM POWER DRIVER
The DRV593 and DRV594 are high-efficiency, high-current power amplifiers ideal for driving a wide variety of thermoelectric cooler elements in systems powered from 2.8 V to 5.5 V. The operation of the device requires only one inductor and capacitor for the output filter, saving significant printed-circuit board area. Pulse-width modulation PWM operation and low output stage on-resistance significantly decrease power dissipation in the amplifier.
The DRV593 and DRV594 are internally protected against thermal and current overloads. Logic-level fault indicators signal when the junction temperature has reached approximately 128°C to allow for system-level shutdown before the amplifiers internal thermal shutdown circuitry activates. The fault indicators also signal when an overcurrent event has occurred. If the overcurrent circuitry is tripped, the devices automatically reset 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 2.3 V/V for the DRV593. For the DRV594, the gain is fixed at 14.5 V/V.
电源电压DC 2.80V min
输出接口数 1
输出电压 4.87 V
输出电流 3000 mA
供电电流 4 mA
通道数 1
耗散功率 4.1 W
静态电流 4.00 mA
工作温度Max 85 ℃
工作温度Min -40 ℃
耗散功率Max 4100 mW
电源电压 2.8V ~ 5.5V
电源电压Max 5V ~ 7V
电源电压Min 2.8 V
安装方式 Surface Mount
引脚数 32
封装 HLQFP-32
封装 HLQFP-32
工作温度 -40℃ ~ 85℃
产品生命周期 Active
包装方式 Tray
RoHS标准 RoHS Compliant
含铅标准 Lead Free
香港进出口证 NLR
型号/品牌 | 代替类型 | 替代型号对比 |
---|---|---|
DRV593VFP TI 德州仪器 | 当前型号 | 当前型号 |
DRV593VFPR 德州仪器 | 完全替代 | DRV593VFP和DRV593VFPR的区别 |
DRV593VFPG4 德州仪器 | 类似代替 | DRV593VFP和DRV593VFPG4的区别 |
DRV593VFPRG4 德州仪器 | 类似代替 | DRV593VFP和DRV593VFPRG4的区别 |