TPS92561 Phase Dimmable, Single Stage Boost Controller for LED Lighting |

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Phase Dimmable, Single Stage Boost Controller for LED Lighting



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.


  • Simple Hysteretic Control
  • Compact Solution and Simple Bill Of Materials
  • Naturally Dimmable TRIAC and Reverse Phase
  • 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


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Part number Order Input voltage (type) Vin (Min) (V) Vin (Max) (V) Iout (Max) (A) Vout (Min) (V) Vout (Max) (V) Regulated outputs (#) Topology Dimming method Power factor correction (Min) Type Switching frequency (Min) (kHz) Switching frequency (Max) (kHz) Iq (Typ) (mA) Vref (V) UVLO thresholds on/off (V) Features Operating temperature range (C) Package Group Package size: mm2:W x L (PKG)
TPS92561 Order now AC/DC
6.5     42     2     5     400     1     Boost
Boost Controller    
Forward Phase (Triac)
Reverse Phase    
Natural     Inductive     50     1500     1.4     0.384     5.44 / 5.07     Adjustable Switch Frequency
Thermal Shutdown    
-40 to 125     HVSSOP | 8     8HVSSOP: 15 mm2: 4.9 x 3 (HVSSOP | 8)