TPS61500PWPR
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Texas Instruments TPS61500PWPR

Manufacturer No:
TPS61500PWPR
Manufacturer:
Texas Instruments
Package:
Tape & Reel (TR)
Description:
IC LED DRV RGLTR PWM 3A 14HTSSOP
Delivery:
Payment:
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Product Introduction

Overview

The TPS61500PWPR from Texas Instruments is a high-brightness LED driver integrated with a 3-A, 40-V power switch. This monolithic switching regulator is designed to drive up to 10 high-brightness LEDs in series, making it ideal for applications requiring high LED current and efficiency. The device supports a wide input voltage range, making it suitable for use with multi-cell batteries or regulated 5-V or 12-V power rails. It features current mode PWM (pulse width modulation) control, programmable overvoltage protection, and both analog and pure PWM dimming methods for LED brightness control.

Key Specifications

Parameter Value Unit
Input Voltage Range 4.5 to 40 V
Output Current Up to 3 A A
Switching Frequency 200 kHz to 2 MHz Hz
Feedback Voltage Regulation 200 mV mV
Overvoltage Protection Threshold 1.192 to 1.266 V V
Thermal Shutdown Threshold 160 °C °C
Operating Ambient Temperature -40 to 85 °C °C
Package Type 14-Pin HTSSOP with PowerPAD
Package Size 5.00 mm × 4.40 mm mm

Key Features

  • Integrated 3-A, 40-V power switch for high-brightness LED driving
  • Current mode PWM control with 200 mV feedback voltage regulation
  • Programmable overvoltage protection and thermal shutdown
  • Analog and pure PWM dimming methods for LED brightness control
  • Programmable soft-start function to limit inrush current during start-up
  • Pulse-by-pulse overcurrent limit and built-in slope compensation to avoid sub-harmonic oscillation
  • Wide input voltage range supporting multi-cell batteries or regulated power rails
  • 14-Pin HTSSOP package with PowerPAD for enhanced thermal performance

Applications

  • Monitor backlighting
  • High-brightness LED lighting for automotive, industrial, and consumer electronics
  • LED lighting systems requiring high efficiency and dimming capabilities
  • Display backlighting in various devices such as TVs, monitors, and mobile devices

Q & A

  1. What is the maximum output current of the TPS61500?

    The TPS61500 can drive up to 3 A of output current.

  2. What are the dimming methods supported by the TPS61500?

    The device supports both analog and pure PWM dimming methods for LED brightness control.

  3. How is the LED current set in the TPS61500?

    The LED current is set using an external sensor resistor (R3) and is regulated to 200 mV by the current mode PWM control loop.

  4. What is the operating temperature range of the TPS61500?

    The device operates over an ambient temperature range of -40 to 85 °C.

  5. What protection features are built into the TPS61500?

    The device includes overvoltage protection, thermal shutdown, and pulse-by-pulse overcurrent limit.

  6. How does the soft-start function work in the TPS61500?

    The soft-start function reduces the start-up current spike and output voltage overshoot by charging a capacitor on the SS pin, which clamps the output of the internal error amplifier.

  7. What is the package type and size of the TPS61500?

    The device is available in a 14-Pin HTSSOP package with PowerPAD, measuring 5.00 mm × 4.40 mm.

  8. Can the switching frequency of the TPS61500 be programmed?

    Yes, the switching frequency can be programmed using an external resistor.

  9. What type of inductor is recommended for use with the TPS61500?

    Texas Instruments recommends using inductors in the range of 4.7 μH to 22 μH, with specific models listed in the datasheet.

  10. How does the TPS61500 handle thermal shutdown?

    The device enters thermal shutdown when the junction temperature exceeds 160 °C and restarts when the temperature drops by 15 °C.

Product Attributes

Type:DC DC Regulator
Topology:Step-Up (Boost)
Internal Switch(s):Yes
Number of Outputs:1
Voltage - Supply (Min):2.9V
Voltage - Supply (Max):18V
Voltage - Output:2.9V ~ 38V
Current - Output / Channel:3A (Switch)
Frequency:200kHz ~ 2.2MHz
Dimming:Analog, PWM
Applications:Backlight
Operating Temperature:-40°C ~ 85°C (TA)
Mounting Type:Surface Mount
Package / Case:14-TSSOP (0.173", 4.40mm Width) Exposed Pad
Supplier Device Package:14-HTSSOP
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Similar Products

Part Number TPS61500PWPR TPS61500PWP
Manufacturer Texas Instruments Texas Instruments
Product Status Active Active
Type DC DC Regulator DC DC Regulator
Topology Step-Up (Boost) Step-Up (Boost)
Internal Switch(s) Yes Yes
Number of Outputs 1 1
Voltage - Supply (Min) 2.9V 2.9V
Voltage - Supply (Max) 18V 18V
Voltage - Output 2.9V ~ 38V 2.9V ~ 38V
Current - Output / Channel 3A (Switch) 3A (Switch)
Frequency 200kHz ~ 2.2MHz 200kHz ~ 2.2MHz
Dimming Analog, PWM Analog, PWM
Applications Backlight Backlight
Operating Temperature -40°C ~ 85°C (TA) -40°C ~ 85°C (TA)
Mounting Type Surface Mount Surface Mount
Package / Case 14-TSSOP (0.173", 4.40mm Width) Exposed Pad 14-TSSOP (0.173", 4.40mm Width) Exposed Pad
Supplier Device Package 14-HTSSOP 14-HTSSOP

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