TPIC2810DRG4屬于集成電路（IC）的LED驅(qū)動器。由美國德州儀器公司制造生產(chǎn)的TPIC2810DRG4LED 驅(qū)動器器件屬于 LED 驅(qū)動器電源管理集成電路 (PMIC) 系列，可通過標稱固定電壓的電源為負載（通常為發(fā)光二極管）提供電流，并且電流可控。它與用于電壓調(diào)節(jié)的類似產(chǎn)品的主要區(qū)別在于，這類器件提供較低的反饋電壓（以提高系統(tǒng)能效），而且通?？蓪ζ骷ぷ鼽c進行外部控制，可在照明應(yīng)用中用于實現(xiàn)調(diào)光功能。

Low rDS(on) . . . 5 Ω Typical

Eight Power DMOS Transistor Outputs of

100-mA Continuous Current

210-mA Current Limit Capability

Drain Output ESD Protection . . . 3000 V

Output Clamp Voltage . . . 40 V

description

The TPIC2810 device is a monolithic, mediumvoltage,

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.