TPS92512DGQT
Active42-V 2.5-A BUCK CURRENT REGULATOR FOR LED LIGHTING
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TPS92512DGQT
Active42-V 2.5-A BUCK CURRENT REGULATOR FOR LED LIGHTING
Technical Specifications
Parameters and characteristics for this part
| Specification | TPS92512DGQT |
|---|---|
| Applications | Lighting |
| Current - Output / Channel | 2.5 A |
| Dimming | PWM |
| Frequency | 2 MHz |
| Internal Switch(s) | True |
| Mounting Type | Surface Mount |
| Number of Outputs | 1 |
| Operating Temperature [Max] | 125 ¯C |
| Operating Temperature [Min] | -40 °C |
| Package / Case | 10-PowerTFSOP, 10-MSOP |
| Package / Case | 3 mm, 0.118 in |
| Supplier Device Package | 10-HVSSOP |
| Topology | Step-Down (Buck) |
| Type | DC DC Regulator |
| Voltage - Output | 45 V |
| Voltage - Supply (Max) [Max] | 42 V |
| Voltage - Supply (Min) [Min] | 4.5 V |
Pricing
Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly
| Distributor | Package | Quantity | $ | |
|---|---|---|---|---|
| Digikey | Cut Tape (CT) | 1 | $ 2.75 | |
| 10 | $ 2.47 | |||
| 25 | $ 2.33 | |||
| 100 | $ 1.98 | |||
| Digi-Reel® | 1 | $ 2.75 | ||
| 10 | $ 2.47 | |||
| 25 | $ 2.33 | |||
| 100 | $ 1.98 | |||
| Tape & Reel (TR) | 250 | $ 1.86 | ||
| 500 | $ 1.63 | |||
| 1250 | $ 1.35 | |||
| 2500 | $ 1.26 | |||
| 6250 | $ 1.21 | |||
| Texas Instruments | SMALL T&R | 1 | $ 2.06 | |
| 100 | $ 1.71 | |||
| 250 | $ 1.23 | |||
| 1000 | $ 0.92 | |||
Description
General part information
TPS92512 Series
The TPS92512/HV are 2.5A step-down (buck) current regulators with an integrated MOSFET to drive high current LEDs. Available with 42 V and 60 V (HV) input ranges, these LED drivers operate at a user selected fixed-frequency with peak-current mode control and deliver excellent line and load regulation.
The TPS92512/HV LED drivers feature separate inputs for analog and pulse width modulation (PWM) dimming for no compromise brightness control achieving contrast ratios of greater than 10:1 and greater than 100:1, respectively. The PWM input is compatible with low-voltage logic standards for easy interface to a broad range of microcontrollers. The analog LED current setpoint is adjustable from 0 V to 300 mV using the IADJ input with an external 0 V to 1.8 V signal.
For multi-string applications using two or more TPS92512/HV LED drivers, the internal oscillator can be overdriven by an external clock ensuring all of the converters operate at a common frequency thereby reducing the potential for beat frequencies and simplifying system EMI filtering. An adjustable input under-voltage lockout (UVLO) with hysteresis provides flexibility in setting start/stop voltages based upon supply voltage conditions.
Documents
Technical documentation and resources
