Datasheet > SP1938S26RGB

SP1938S26RGB

更新时间： 2024-09-30 06:13:03

品牌	Logo	应用领域
擎力 - SYNC-POWER		转换器升压转换器
页数	文件大小	规格书
6页	166K
描述
DC-DC Step-Up Converter for White LED

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SP1938S26RGB 数据手册

SP1938

DC-DC Step-Up Converter for White LED

DESCRIPTION

APPLICATIONS

The SP1938 is a step-up DC/DC converter for white

LED driver with over voltage protection. The device

can driver one to four LEDs in series from a single cell

Lithium Ion battery.

Battery Power Equipment

Notebook Computers

PDA

Cellular Phone

Internal functions include current limiting; thermal

shutdown; OVP and soft-start to prevent damage

operate status. The SP1938 operates at 0.8MHz and

from low input voltages as low as 1.5V; apply to

Lithium-Ion powered systems. A low 95mV reference

voltage minimizes power loss in the current setting

resistor for better efficiency.

The SP1938 is available in small package SOT-23-6L.

FEATURES

PIN CONFIGURATION(SOT-23-6L)

Current Source with Over Voltage Protection

Fast 0.8MHz Switching Frequency

High Efficiency up to 87%

Drives up to Four LEDs From 3.2V Supply

Drives up to Six LEDs From a 5V Supply

Low Quiescent Current

Disconnects LEDs in Shutdown Mode

Internal Over Temperature and Current Limiting

Shutdown Function

Internal Soft-Start Circuit

36V Rugged Bipolar Switch

Available in a Small SOT-23-6L Package

PART MARKING

2009/03/30 Ver.1

Page 1

12 3 4 5 6

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