TI TPL7407L七路高压大电流NMOS驱动器解决方案

TI公司的TPL7407L是七路高压大电路NMOS晶体管阵列,每路输出电流高达600mA,输出电压40V,输出漏电流小于10nA,控制逻辑1.8V-5.0V,主要用混合电力汽车电池管理, 电动汽车充电器, 马达控制,太阳能逆变器,家用电器,打印机,示波器,通信/服务器电源等.本文介绍了TPL7407L 主要特性, 简化电路图和多种应用电路.以及评估板TPL7407LEVM主要特性,单路电路图和完整电路图与PCB元件布局图.

The TPL7407L is a high-voltage, high-current NMOS transistor array. This device consists of seven NMOS transistors that feature high-voltage outputs with common-cathode clamp diodes for switching inductive loads. The maximum drain-current rating of a single NMOS channel is 600 mA. New regulation and drive circuitry added to give maximum drive strength across all GPIO ranges (1.8V-5.0V).The transistors can be paralleled for higher current capability.

The TPL7407L’s key benefit is its improved power efficiency and lower leakage than a Bipolar Darlington Implementation. With the lower VOL the user is dissipating less than half the power than traditional relay drivers with currents less than 250mA per channel.

TPL7407L 主要特性:

600mA-Rated Drain Current (Per Channel)
CMOS Pin-to-Pin Improvement of 7-channel Darlington Array (e.g. ULN2003A)
Power Efficient (Very low VOL)
Less Than 4 Times Lower VOL at 100mA Than Darlington Arrray ..

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