TS19371 データシートの表示（PDF） - TSC Corporation

部品番号

コンポーネント説明

一致するリスト

TS19371

Boost (Step-up) WLED Driver with OVP

TSC Corporation 

TS19371

Boost (Step-up) WLED Driver with OVP

SOT-26

Pin Definition:

1. SW

6. VIN

2. GND 5. OVP

3. FB

4. CTRL

SOP-8

Pin Definition:

1. VIN

8. SW

2. GND

7. GND

3. GND

6. GND

4. CTRL 5. FB

General Description

The TS19371 is a step-up DC/DC converter specifically designed to drive white LEDs with a constant current. The

device can drive up to 126 LEDs (9S14P) from a 12V supply. The output capacitor can be as small as 4.7µF,

saving space versus alternative solutions. A low 95mV feedback voltage minimizes power loss for better

efficiency. Additional feature include over output voltage limiting (SOT-26 package) when LEDs are disconnected.

The TS19371 switches at a fixed frequency of 1.2MHz, allowing the use of tiny, low profile inductors and

capacitors to minimize footprint and cost in space consideration applications for cellular phone backlighting or

other hand held equipment.

Features

● Inherently Matched LED Current

● High Efficiency: 89% Typical

● Drives Up to 9 LEDs Series @ Vin 9~15V

● Drives Up to 126 LEDs (9S14P) @ Vin 12~15V

● Drives Up to 6 (1W) LEDs Series @ Vin 12V

● Over Output Voltage Protection 30V (SOT-26)

● Fast 1.2MHz Switching Frequency

● Requires Only 4.7µF Output Capacitor

● PWM dimming control 1KHz to 10KHz

● Analog dimming control

Ordering Information

Part No.

TS19371CX6 RF

TS19371CS RL

Package

SOT-26

SOP-8

Packing

3Kpcs / 7” Reel

2.5Kpcs / 13” Reel

Input Voltage vs. Efficiency

Application

● Cellular Phones

● Portable Electronics Devices PDA, GPS

● LCD Display Module

● White LED Backlighting

● MR-16 lighting

Typical Application Circuit

1/10

Version: G08

Share Link: