Datasheet4U Logo Datasheet4U.com

TS1937 - Boost (Step-up) WLED Driver

General Description

The TS1937 is a step-up DC/DC converter specifically designed to drive white LEDs with a constant current.

The device can drive 2 ~ 12 LEDs in series from a Li-Ion cell.

Key Features

  • Inherently Matched LED Current High Efficiency: 88% Typical Drives Up to 6 LEDs @ Vin 5V Drives Up to 12 LEDs @ Vin 12~15V 36V Rugged Bipolar Switch Fast 1.2MHz Switching Frequency Requires Only 0.22µF Output Capacitor PWM dimming control 1KHz to 10KHz Analog dimming control.

📥 Download Datasheet

Datasheet Details

Part number TS1937
Manufacturer Taiwan Semiconductor Company
File Size 406.87 KB
Description Boost (Step-up) WLED Driver
Datasheet download datasheet TS1937 Datasheet

📁 Similar Datasheet

Part Number Description Manufacturer
TS19370 Boost (Step-up) WLED Driver Taiwan Semiconductor
TS19371CX6 Boost (Step-up) WLED Driver Taiwan Semiconductor
TS19376 1A Step-down High Brightness LED Driver Taiwan Semiconductor
TS19377 2A Buck (Step-down) WLED Driver Taiwan Semiconductor
TS19378 2A Buck (Step-down) WLED Driver Taiwan Semiconductor

Other Datasheets by Taiwan Semiconductor Company

Part Number Description
TS19371 Boost (Step-up) WLED Driver
TS19372 Buck (Step-down) WLED Driver
TS19373 800mA Buck (Step-down) WLED Driver
TS1935 1.6MHz Boost Converter
TS1900 Ultra Low Quiescent Current Smart Load Switch

Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

View original datasheet text
Boost (Step-up) WLED Driver SOT-25 Pin Definition: 1. SW 2. Ground 3. Feedback 4. CTRL 5. Input www.DataSheet4U.com TS1937 General Description The TS1937 is a step-up DC/DC converter specifically designed to drive white LEDs with a constant current. The device can drive 2 ~ 12 LEDs in series from a Li-Ion cell. Series connection of the LEDs provides identical LED currents resulting in uniform brightness and eliminating the need for ballast resistors. The output capacitor can be as small as 0.22µF, saving space versus alternative solutions. A low 95mV feedback voltage minimizes power loss for better efficiency. Additional feature include over output voltage limiting when LEDs are disconnected. The TS1937 switches at a fixed frequency of 1.