TS1916 Datasheet, PDF (1/10 Pages) Taiwan Semiconductor Company, Ltd – 1.7A Boost WLED Driver

TS1916
1.7A Boost WLED Driver
SOT-26
Pin Definition:
1. Switch
2. Ground
3. Feedback
4. Enable
5. OVP
6. VCC
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
Note: “G” denotes for Halogen- and Antimony-free as those which
contain <900ppm bromine, <900ppm chlorine (<1500ppm
total Br + Cl) and <1000ppm antimony compounds
Absolute Maximum Ratings
Parameter
Symbol
Limit
V_CC Pin Voltage
V_CC
-0.3 to 6
SW Pin Voltage
V_SW
-0.3 to 45
OVP Pin Voltage
V_OVP
-0.3 to 45
EN, FB Pin Voltage
-0.3 to 6
Power Dissipation
P_D
( T_J-T_A ) / R_θJA
Storage Temperature Range
T_STG
-65 to +150
Operating Junction Temperature Range
T_OP
-40 to +125
Thermal Resistance from junction to case
R_θJC
15
Thermal Resistance from junction to ambient
R_θJA
40
Note: R_θJA is measured with the PCB copper area of approximately 1 in² (Multi-layer).
Unit
V
V
V
V
mW
°C
°C
°C/W
°C/W
1/10
Version: A14