TS19460 Datasheet, PDF (1/7 Pages) Taiwan Semiconductor Company, Ltd – AC/DC WLED Driver with External MOSFET Universal High Brightness

TS19460
AC/DC WLED Driver with External MOSFET
Universal High Brightness
SOP-8
Pin Definition:
1. VIN
8. RT
2. CS
7. LD
3. GND
6. VDD
4. Gate
5. PWMD
General Description
The TS19460 is an average current mode control LED driver IC. It can be programmed to operate in either a
constant frequency or constant off-time mode. And therefore greatly improves accuracy, line and load regulation
of the LED current without any need for loop compensation or high-side current sensing. The output LED current
accuracy is at +/-3%, and it is equipped with current limit comparator for hiccup mode output short circuit
protection.
The TS19460 is includes an 8V~450V linear regulator which allows it to work from a wide range of input voltages
without the need for an external low voltage supply. It also includes a PWM dimming input that can accept an
external control TTL compatible signal. The output current can be programmed by an internal 250mV reference,
or controlled externally through a 0~1.5V dimming input. The TS19460 is ideally suited for buck LED drivers and
is requires only free external components (apart from the power stage) to produce a controlled LED current
making it and ideal solution for low cost LED drivers.
Features
● Switch mode controller LED drivers
● Fast average current controller
● Internal 8V~450V linear regulator
● Constant frequency or constant off-time operation
● Linear and PWM dimming capability
● Requires few external components for operation
● Output short circuit protection with skip mode
Ordering Information
Part No.
Package
Packing
TS19460CS RLG SOP-8 2.5Kpcs / 13” Reel
Note: “G” denote for Halogen Free Product
Typical Application Circuit
Application
● DC/DC or AC/DC LED driver applications
● RGB backlighting LED driver
● Back lighting of flat panel displays
● General purpose constant current source
● Signage and decorative LED lighting
● LED street lighting
Absolute Maximum Rating
Parameter
Input Voltage Range
Internal Regulated Voltage
CS, LD, PWMD, Gate, RT to GND
Continuous Power Dissipation
Storage Temperature Range
Junction Temperature Range
Thermal Resistance – Junction to Ambient
Symbol
V_IN to GND
V_DD to GND
P_D
T_A
T_J
Rθ_JA
Limit
-0.5 ~ +470
12
-0.3 ~ (V_DD+0.3)
650
-65 to +150
-40 to +150
128
Unit
V
V
V
mW
o_C
o_C
o_C/W
1/7
Version: A12