TPS92561 Datasheet, PDF (1/31 Pages) Texas Instruments – Phase Dimmable, Single Stage Boost Controller for LED Lighting

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TPS92561
SLVSCD1C – DECEMBER 2013 – REVISED NOVEMBER 2015
TPS92561 Phase-Dimmable, Single-Stage Boost Controller for LED Lighting
1 Features
•1 Simple Hysteretic Control
• Compact Solution and Simple Bill Of Materials
• Naturally Dimmable TRIAC and Reverse Phase
Dimmers
• Implements LED Drive Circuits Capable of High
>90% Efficiency, >0.9 Power Factor, and <20%
THD
• Programmable Output Over-voltage Protection
• Overtemperature Shutdown
• VCC Undervoltage Lockout
• 8-Pin VSSOP (MSOP) With Exposed Pad
2 Applications
• Off-Line TRIAC Dimmable Applications
• Off-Line Non-Dimmable Lamps
• Lamps Requiring the Highest Efficiency and
Lowest BOM Cost
• Industrial and Commercial Solid State Lighting
3 Description
The TPS92561 device is a boost controller for LED
lighting applications utilizing high-voltage, low-current
LEDs. A boost converter approach to lighting
applications allows the creation of the smallest
volume converter possible and enables high
efficiencies beyond 90%. The device incorporates a
current sense comparator with a fixed offset enabling
a simple hysteretic control scheme free of the loop
compensation issues typically associated with a boost
converter. The integrated OVP and VCC regulator
further simplify the design procedure and reduce
external component count.
Device Information⁽¹⁾
PART NUMBER
PACKAGE
BODY SIZE (NOM)
TPS92561
HVSSOP (8)
3.00 mm × 3.00 mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
Typical Application Schematic
LED+
TPS92561
GATE VP
SRC OVP
VCC ADJ
SEN GND
LED+
EMI
Filter
(opt) TRIAC
Dimmer
1
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. PRODUCTION DATA.