TPL9202

微控制器电源和多低侧驱动器

* Eight Low-Side Drivers With Internal Clamp for Inductive Loads and Current Limiting for Self Protection

.

Seven Outputs are Rated at 150 mA and Controlled Through Serial Interface

.

One Output Rated at 150 mA and Controlled Through Serial Interface and Dedicated Enable Pin

.

5-V ±5% Regulated Power Supply With 200-mA Load Capability at VIN Max of 18 V

.

Internal Voltage Supervisory for Regulated Output

.

Serial Communications for Control of Eight Low-Side Drivers

.

Enable/Disable Input for OUT1

.

5-V or 3.3-V I/O Tolerant for Interface to Microcontroller

.

Programmable Power On-Reset Delay Before RST Asserted High, Once 5 V Is Within Specification 6 ms Typ

.

Programmable Deglitch Timer Before RST Is Asserted Low 40 µ Typ

.

Programmable Brown-Out Feature

.

Thermal Shutoff for Self Protection

.

APPLICA ONS

.

Electrical Applicances

.

Air Conditioning Units

.

Ranges

.

Dishwashers

.

Refrigerators

.

Microwaves

.

Washing Machines

.

General-Purpose Interface Circuit Allowing Microcontroller Interface to Relays, Electric Motors, LEDs, and Buzzers

PowerPAD is a trademark of Texas Instruments.

## DESCRIPTION/ORDERING INFORMATION

The power supply provides regulated 5-V output to power the system microcontroller and drive eight low-side switches. The brown-out detection output BO_OUTZ warns the system if there is a temporary drop in the supply voltage, so the system can prevent potentially hazardous situations.

A serial communications interface controls the eight low-side outputs; each output has an internal snubber circuit to absorb the inductive load at turn OFF. Alternatively, the system can use a fly-back diode to VIN to help recirculate the energy in an inductive load at turn OFF.