TPIC2810中文资料配备 I2C 接口的 8 位 LED 驱动器数据手册TI规格书

描述 Description

The TPIC2810 device is a monolithic, medium-voltage, low-current, 8-bit shift register design to drive low-side switched resistive loads such as LEDs. The device is not recommended for switching inductive loads.

This device contains an 8-bit, serial-in, parallel-out shift register that feeds an 8-bit D-type storage register. Data transfers through the shift register via an I2C bus interface. Data is transferred into the data shift register only after the group ID and device address have been verified. The subaddress directs the I2C bus interface to read or write data to the device or transfer data to the output. When output enable (G)\\ is held high, all drain outputs are off. When G\\ is held low, data from the output storage register is transparent to the output buffers. When data in the output buffers is low, the DMOS transistor outputs are off. When data is high, the DMOS transistor outputs have sink-current capability.

The TPIC2810 device has an internal power-up clear to initialize all registers to an off state when power is applied to the device. It also has a thermal sensor to monitor the die temperature and shut the drain outputs off, if an over current condition occurs.

Outputs are low-side, open-drain DMOS transistors with output ratings of 40 V and 100 mA continuous sink-current capability. Each output provides a 210-mA maximum current limit at TC = 25°C. The current limit decreases as the junction temperature increases for additional device protection. The device also provides up to 3000 V of ESD protection on output terminals and 2000 V of ESD protection on input terminals when tested using the human-body model.

The TPIC2810 device is characterized for operation over the operating case temperature range of –40°C to 125°C.

特性 Features

• Low rDS(on) ...5 Typical
• 100-mA Continuous Current
• Drain Output ESD Protection . . . 3000 V
• Output Clamp Voltage . . . 40 V

简介

TPIC2810属于集成电路（IC）的LED驱动器。由TI制造生产的TPIC2810LED 驱动器器件属于 LED 驱动器电源管理集成电路 (PMIC) 系列，可通过标称固定电压的电源为负载（通常为发光二极管）提供电流，并且电流可控。它与用于电压调节的类似产品的主要区别在于，这类器件提供较低的反馈电压（以提高系统能效），而且通常可对器件工作点进行外部控制，可在照明应用中用于实现调光功能。