Datasheet > LED1202

LED1202

更新时间： 2024-10-03 14:58:23

品牌	Logo	应用领域
意法半导体 - STMICROELECTRONICS		驱动驱动器
页数	文件大小	规格书
54页	1102K
描述
12通道低静态电流LED驱动器

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LED1202 数据手册

LED1202

Datasheet

12-channel low quiescent current LED driver

Features

•

Supply range from 2.6 V to 5 V

12 channels for single LED

20 mA current capability per channel

1% (typ.) current matching at 16 mA and 2% (typ.) at 2.5 mA

1.8 V compatible I²C control interface

8-bit analog dimming individual control

12-bit local PWM resolution

WLCSP20

8 programmable patterns

Programmable pattern sequence

Synchronization for multi-device application

Phase shifting between channels

Open LED detection

QFN20 3x3

Overtemperature protection

8 configurable I²C slave addresses plus global address

Fault flag pin

Applications

•

RGB LED lighting, fade-in and fade-out breathing effect, indicator lights for:

–

Wearable electronics

Battery powered devices

Portable accessories

Maturity status link

LED1202

Description

The LED1202 is a 12-channel low quiescent current LED driver; it guarantees 5 V

output driving capability and each channel is able to provide up to 20 mA with a

headroom voltage of 350 mV (typ.) only. The output current can be adjusted

separately for each channel by 8-bit analog and 12-bit digital dimming control.

A slow turn-on and turn-off time improves the system low noise generation

performance; moreover, the phase shifting function helps to reduce the inrush

current. Eight patterns can be stored in the internal registers for automatic

sequencing without MCU intervention.

The pattern sequence can be also configured for duration time and number of

repetition. For multi-device applications, a common clock domain can be shared for

timing synchronization. The device includes thermal shutdown and open LED

detection.

The device I²C interface is based on fast mode specification and works up to 400

kHz. Eight I²C addresses are possible by using two configuration pins (A0/A1) only.

The LED1202 is available in WLCSP20 package 1.71 x 2.16 x 0.5 mm with 0.4 mm

pitch and in QFN20 3x3 package 3 x 3 x 0.6 mm with 0.5 mm pitch.

DS12875 - Rev 2 - February 2019

www.st.com

For further information contact your local STMicroelectronics sales office.

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