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LP55231SQE/NOPB

LED驱动器, 9输出, 电荷泵, 2.7V-5.5V输入, 1.25MHz开关, 5.5V/25.5mA输出, WQFN-24

TEXAS INSTRUMENTS LP55231SQE/NOPB

图片仅用于图解说明,详见产品说明。

制造商产品编号:
LP55231SQE/NOPB
库存编号
3006014

产品信息

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:
电荷泵

:
2.7V

:
5.5V

:
5.5V

:
25.5mA

:
1.25MHz

:
9输出

:
表面安装

:
WQFN

:
24引脚

:
-40°C

:
85°C

:
-

:
-

:
MSL 1 -无限制
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技术文档 (1)

产品概述

The LP55231SQE/NOPB is a 9-channel LED Driver designed to produce lighting effects for mobile devices. A high-efficiency charge pump enables LED driving over full Li-ion battery voltage range. The device is equipped with an internal program memory, which allows operation without processor control. It has an I²C-compatible control interface with four pin-selectable addresses. The INT pin can be used to notify processor when a lighting sequence has ended (interrupt function). Also, the device has a trigger input interface, which allows synchronization, for example, between multiple LP55231 devices. Excellent efficiency is maintained over a wide operating range by autonomously selecting the best charge pump gain based on LED forward voltage requirements. The device is able to automatically enter power-save mode when LED outputs are not active, thus lowering idle current consumption down to 10µA (typical).
  • Adaptive high-efficiency 1x/1.5x fractional charge pump - efficiency up to 94%
  • LED drive efficiency up to 93%
  • Charge pump with soft-start
  • Overcurrent and short-circuit protection
  • Built-in LED test
  • Two-wire I²C-compatible control interface
  • Flexible instruction set
  • Large SRAM program memory
  • Small application circuit
  • Source (high-side) drivers
  • Architecture supports colour control
  • 200nA Typical standby current
  • 10µA (IVDD) Typical automatic power save mode
  • Green product and no Sb/Br

应用

发光二极管照明

包装类型 切割卷带

207 有货 需要更多?

207 可于 4 至 5 个工作日内送达

CNY15.46 ( CNY17.47  含增值税)

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包装规格:
单件(切割供应)
多件: 1 最低: 1
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