TPS92560 Datasheet, PDF (1/17 Pages) Texas Instruments – SIMPLE LED DRIVER FOR MR16 AND AR111 APPLICATIONS

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TPS92560
SNVS900A – DECEMBER 2012 – REVISED JANUARY 2013
SIMPLE LED DRIVER FOR MR16 AND AR111 APPLICATIONS
Check for Samples: TPS92560
FEATURES
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• Controlled peak input current to prevent over-
stressing of the electronic transformer
• Allows either step-up or step-up/down
operation
• Compatible to generic electronic transformers
• Compatible to magnetic transformers and DC
power supplies
• Integrated active low-side input rectifiers
• Compact and simple circuit
• >85% efficiency (12VDC input)
• Power factor > 0.9 (full load with AC input)
• Hysteretic control scheme
• Output Over-Voltage Protection
• Over-temperature Shutdown
• 10-pin mini SOIC package with exposed pad
APPLICATIONS
• MR16/AR111 LED lamps
• Lighting system using electronic transformer
• General lighting systems that require a boost /
SEPIC LED driver
DESCRIPTION
The TPS92560 is a simple LED driver designed to
drive high power LEDs by drawing constant current
from the power source. The device is ideal for MR16
and AR111 applications which need good
compatibility to DC and AC voltages and electronic
transformers. The hysteretic control scheme does not
need control loop compensation while providing the
benefits of fast transient response and high power
factor. The patent pending feedback control method
allows the output power to be determined by the
number of LED used without component change. The
TPS92560 supports both boost and SEPIC
configurations for the use of different LED modules.
TYPICAL APPLICATION
L₁
D₃
LED
R_ADJ1
R_ADJ2 C_ADJ
C_OUT
R_SEN
Q₁
C_VCC
C_IN
TPS92560
R₁
GATE
SRC
VCC
SEN
GND
AC1
PGND
AC2
VP
ADJ
D₁
D₂
C_VP
Power
Source
Typical application circuit of the TPS92560 using boost configuration
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Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
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