TPL9201 - 微控制器电源和多低侧驱动器

TPL9201是TI德州仪器公司的一款外围驱动器和传动器产品，TPL9201是微控制器电源和多低侧驱动器，本站介绍了TPL9201的封装应用图解、特点和优点、功能等，并给出了与TPL9201相关的TI元器件型号供参考。

TPL9201 - 微控制器电源和多低侧驱动器 - 外围驱动器和传动器 - 其它接口 - 德州仪器

产品描述

产品特性

Eight Low-Side Drivers With Internal Clamp for Inductive Loads and Current Limiting for Self Protection
- Seven Outputs 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 Specified Range (6 ms Typ)
Programmable Deglitch Timer Before RST Is Asserted Low (40 µs Typ)
Zero-Voltage Detection Signal
Thermal Shutdown for Self Protection
APPLICATIONS
- Electrical Appliances
  - Air Conditioning Units
  - Ranges
  - Dishwashers
  - Refrigerators
  - Microwaves
  - Washing Machines
- General-Purpose Interface Circuits, 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 AC zero-detect circuitry is monitoring the crossover voltage of the mains AC supply. The resultant signal is a low-frequency clock output on the ZVS terminal, based on the AC-line cycle. This information allows the microcontroller to reduce in-rush current by powering loads on the AC-line peak voltage.

A serial communications interface controls the eight low-side outputs; each output has an internal snubber circuit to absorb the energy in the inductor 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.

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