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2A LED Driver with Integrated NFET, High-Side Current Sense, and Shunt PWM Dimming Capable


Package | PIN: DGQ | 10
Temp: Q (-40 to 125)
Carrier: Cut Tape
Qty Price
1-9 $2.60
10-24 $2.33
25-99 $2.16
100-249 $1.88
250-499 $1.74
500-749 $1.46
750-999 $1.20
1000+ $1.10


  • AEC-Q100 Grade 1 Qualified
  • Integrated 290-mΩ (typ) Internal N-Channel FET
  • Input Voltage Range:
    • TPS92515x: 5.5 V to 42 V
    • TPS92515HVx: 5.5 V to 65 V
    • Operation Down to 5.15 V After Start-Up
  • Low Offset High-side Peak Current Comparator
  • Constant Average Current, up to 2 A
  • Inherent Cycle-by-Cycle Current Limit
  • Multiple Dimming Methods
    • 10,000:1 Shunt PWM Dimming Range
    • 1000:1 PWM DimmingRange
    • 200:1 Analog DimmingRange
  • Simple Constant Off-time Control
    • No Loop Compensation
    • Fast Transient Response
  • Thermally Enhanced HVSSOP Package
  • Integrated Thermal Protection

Texas Instruments  TPS92515HVQDGQTQ1

The TPS92515 family of devices are compact monolithic switching regulators integrating alow resistance N-Channel MOSFET. The devices are intended for high-brightness LED lightingapplications where efficiency, high bandwidth, PWM and/or analog dimming and small size areimportant.

The regulator operates using a constant off-time, peak current control. The operation issimple: after an off-time based on the output voltage, an on-time begins. The on-time ends once theinductor peak current threshold is reached. The TPS92515 device can be configured to maintain aconstant peak-to-peak ripple during the ON and OFF periods of a shunt FET dimming cycle. This is ideal for maintaining a linear response across the entire shunt FET dimming range.

Steady-state accuracy is aided by the inclusion of a low-offset, high-side comparator.LED current can be modulated using either Analog or PWM dimming, or both simultaneously. Otherfeatures include UVLO, wide input voltage operation, inherent LED Open operation and wide operatingtemperature range with thermal shut-down.

The TPS92515 and TPS92515-Q1 devices have an operational input range up to 42 V. TheTPS92515HV and TPS92515HV-Q1 offer high-voltage options with an input range up to 65 V. All areavailable in a thermally enhanced 10-pin HVSSOP package.

For all available packages, see the orderable addendum at