Datasheet > LED1642GW

LED1642GW

更新时间： 2024-09-10 01:06:07

品牌	Logo	应用领域
意法半导体 - STMICROELECTRONICS		/
页数	文件大小	规格书
42页	2507K
描述
16 channel LED driver with error detection current gain control

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LED1642GW 数据手册

LED1642GW

16 channel LED driver with error detection current gain control and

12/16-bit PWM brightness control

Datasheet

production data

Applications

• Full color/monochrome large displays

• LED signage

QSOP-24

TSSOP24

Description

The LED1642GW is a monolithic, low voltage, low

current power 16-bit shift register designed for

LED panel displays. The LED1642GW

TSSOP24

(exposed pad)

guarantees 20 V output driving capability allowing

the user to connect several LEDs in series. In the

output stage, sixteen regulated current sources

provide from 3 mA to 40 mA constant current to

drive the LEDs. The current is programmed

through an external resistor and can be adjusted

by a 7-bit current gain register in two subranges.

The brightness can be adjusted separately for

each channel through 12/16-bit grayscale control.

Features

• 16 constant current output channels

• Output current: from 3 mA to 40 mA

• Current programmable through external

Programmable turn-on and turn-off time (four

different values available) improves the low noise

generation performance of the system.

resistor

• 7-bit global current gain adjustment in two

ranges

Open/short error detection mode is available in

the LED1642GW. The auto power-shutdown and

auto power-on features (selectable) allow the

device to save power without external

intervention.

• 12/16-bit PWM grayscale brightness control

• Programmable output turn-on/off time

• Error detection mode (both open and shorted-

LED)

Thermal management includes an

• Programmable shorted-LED detection

overtemperature data alert and output thermal

shutdown (170 °C). The high clock frequency is

up to 30 MHz and it makes the device suitable for

high data rate transmission. A selectable gradual

output delay reduces the inrush current, whereas

the selectable SDO synchronization feature works

when the device is used in daisy-chain

thresholds

• Auto power saving/auto-wakeup

• Selectable SDO synchronization on the CLK

falling edge

• Gradual output delay (selectable)

• Supply voltage: 3 V to 5.5 V

configuration. The supply voltage range is

between 3 V and 5.5 V.

• Thermal shutdown and overtemperature alert

• 30 MHz 4-wires interface

• 20 V current generator rated voltage

November 2015

DocID024395 Rev 6

1/42

This is information on a product in full production.

www.st.com

12 3 4 5 6 7...42

中文翻译

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与LED1642GW相关器件

型号	品牌	获取价格	描述	数据表
LED1642GWPTR	STMICROELECTRONICS	获取价格	16 channel LED driver with error detection current gain control
LED1642GWQTR	STMICROELECTRONICS	获取价格	16 channel LED driver with error detection current gain control
LED1642GWTTR	STMICROELECTRONICS	获取价格	16 channel LED driver with error detection current gain control
LED1642GWXTTR	STMICROELECTRONICS	获取价格	16 channel LED driver with error detection current gain control
LED-16X3	ETC	获取价格	LED Series - 3 Pin Round 5mm Diameter
LED17W-12	ETC	获取价格	Switch Mode LED Drivers Constant Current & Co
LED17W-12-C1400	ETC	获取价格	Switch Mode LED Drivers Constant Current & Co
LED17W-24	ETC	获取价格	Switch Mode LED Drivers Constant Current & Co
LED17W-24-C0700	ETC	获取价格	Switch Mode LED Drivers Constant Current & Co
LED17W-36	ETC	获取价格	Switch Mode LED Drivers Constant Current & Co

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