TPL7407LPWR

1 Features

• 600-mA 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 100 mA Than Darlington Array

• Very Low Output Leakage < 10 nA Per Channel

• Extended Ambient Temperature Range: TA = –40°C to 125°C 

• High-Voltage Outputs 40 V 

• Compatible with 1.8-V to 5.0-V Micro-controllers and Logic Interface

• Internal Free-wheeling Diodes for Inductive Kickback Protection

• Input Pull-down Resistors Allows Tri-stating the Input Driver

• Input RC-Snubber to Eliminate Spurious Operation in Noisy Environment

• Inductive Load Driver Applications

• ESD Protection Exceeds JESD 22

– 2-kV HBM, 500-V CDM

• Available in 16-pin SOIC and TSSOP Packages

2 Applications

• Inductive Loads

– Relays

– Unipolar Stepper & Brushed DC Motors

– Solenoids & Valves

• LEDs

• Logic Level Shifting

• Gate & IGBT Drive

3 Description

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 (1.8 V – 5.0 V).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 250 mA per channel.

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