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LP3943ISQ/NOPB

LED驱动器, 16输出, 升压, 2.3V-5.5V输入, 400kHz开关, 25mA输出, WQFN-24

TEXAS INSTRUMENTS LP3943ISQ/NOPB
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制造商产品编号:
LP3943ISQ/NOPB
库存编号
3119165

产品信息

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:
升压 (升压)

:
2.3V

:
5.5V

:
5.5V

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200mA

:
400kHz

:
16输出

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表面安装

:
WQFN

:
24引脚

:
-40°C

:
85°C

:
-

:
-

:
MSL 1 -无限制
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产品概述

The LP3943ISQ/NOPB is a 16-output LED Fun Light Driver for use with general purpose I/O expander. This device also contains an internal precision oscillator that provides all the necessary timing required for driving each LED. Two prescaler registers, along with two PWM registers, provide a versatile duty-cycle control. It contains the ability to dim LEDs in SMBUS/I²C applications where it is required, to cut down on bus traffic. Traditionally, dimming LEDs using a serial shift register such as 74LS594/5 requires a large amount of traffic on the serial bus. The LP3943 instead requires only the setup of the frequency and duty cycle for each output pin, from then on, only a single command from the host is required to turn each individual open drain output to an on or off state or to cycle a programmed frequency and duty cycle. Any ports not used for controlling the LEDs can be used for general purpose input/output expansion.
  • Internal power-ON reset
  • Active low reset
  • Internal precision oscillator
  • Variable dim rate (from 6.25ms to 1.6s, 160 to 0.625Hz)
  • 16 LED drivers (multiple programmable states - on, off, input and dimming at a specified rate)
  • 16 Open-drain outputs capable of driving up to 25mA per LED
  • Green product and no Sb/Br

应用

发光二极管照明, 便携式器材, 消费电子产品, 照明

警告

Market demand for this product has caused an extension in leadtimes. Delivery dates may fluctuate. Product exempt from discounts.
包装类型 切割卷带

可延期交货

交付周期内将会有更多库存,大约为 23-1-23

有货时请通知我

CNY19.09 ( CNY21.57  含增值税)

定价不可用。 请联系客户服务

包装规格:
单件(切割供应)
多件: 1 最低: 1
数量 单价(含增值税) 您所支付金额(含增值税)
 
 
1+ CNY19.09 (CNY21.57)
优惠价格
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仅限网络价格
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  ( )
10+ CNY17.51 (CNY19.79)
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合约价格
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  ( )
25+ CNY16.54 (CNY18.69)
优惠价格
合约价格
仅限网络价格
仅限网络合约价格
  ( )
100+ CNY15.07 (CNY17.03)
优惠价格
合约价格
仅限网络价格
仅限网络合约价格
  ( )
 
 

定价不可用。 请联系客户服务

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