TS1916

1.7A Boost WLED Driver

1/10

Version: A14

SOT-26

General Description

The TS1916 is a step-up (Boost) converter designed for driving up to 10 series white LEDs for backlighting

application. The TS1916 uses current mode, 1MHz fixed frequency architecture to regulate the LED current,

which is set through an external current sense resistor. It

’s low feedback voltage reduces power loss and

improves efficiency. The OVP pin monitors the output voltage and turns off the converter if an over-voltage

condition is present due to an open circuit condition. The TS1916 includes under-voltage lockout, current limiting

and thermal shutdown protection preventing damage in the event of an output overload.

Features

●

2.5V to 5.5V operating input voltage range

●

Drives up to 10 series white LEDs

●

1MHz fixed switching frequency

●

Wide range for PWM dimming (200Hz to 200kHz)

●

Internal 1.7A switching current limit

●

Over voltage protection (OVP)

●

Internal soft-start function

●

Current limit and thermal shutdown protection

●

Under voltage lockout

Application

●

Digital Still Cameras

●

Portable Electronics

●

PDAs and Palm-Top Computers

●

Local Boost Regulator

Ordering Information

Part No.

Package

Packing

TS1916CX6 RFG

SOT-26

3kpcs / 7

” Reel

contain <900ppm bromine, <900ppm chlorine (<1500ppm

total Br + Cl) and <1000ppm antimony compounds

Absolute Maximum Ratings

Parameter

Symbol

Limit

Unit

-0.3 to 6

V

SW Pin Voltage

-0.3 to 45

V

OVP Pin Voltage

-0.3 to 45

V

EN, FB Pin Voltage

-0.3 to 6

V

Power Dissipation

mW

Storage Temperature Range

-65 to +150

°C

Operating Junction Temperature Range

-40 to +125

°C

Thermal Resistance from junction to case

15

°C/W

Thermal Resistance from junction to ambient

40

°C/W

Pin Definition:

1. Switch

2. Ground

3. Feedback

4. Enable

5. OVP