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TS19460 bảng dữ liệu(PDF) 1 Page - Taiwan Semiconductor Company, Ltd

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TS19460
AC/DC WLED Driver with External MOSFET
Universal High Brightness
1/7
Version: A12
SOP-8
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
Symbol
Limit
Unit
Input Voltage Range
VIN to GND
-0.5 ~ +470
V
Internal Regulated Voltage
VDD to GND
12
V
CS, LD, PWMD, Gate, RT to GND
-0.3 ~ (VDD+0.3)
V
Continuous Power Dissipation
PD
650
mW
Storage Temperature Range
TA
-65 to +150
oC
Junction Temperature Range
TJ
-40 to +150
oC
Thermal Resistance – Junction to Ambient
JA
128
oC/W
Pin Definition:
1. VIN
8. RT
2. CS
7. LD
3. GND
6. VDD
4. Gate
5. PWMD


Số phần tương tự - TS19460

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Mô tả tương tự - TS19460

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