Texas Instruments TPS929120QPWPRQ1 – 12 – Channel Automotive 40V High – Side LED Driver with Flexwire Interface, 24 – HTSSOP

Basic Information

• Manufacturer: Texas Instruments
• Part Number: TPS929120QPWPRQ1
• DigiKey Part Numbers:
  • 296-TPS929120QPWPRQ1TR-ND (Tape & Reel)
  • 296-TPS929120QPWPRQ1CT-ND (Cut Tape)
  • 296-TPS929120QPWPRQ1DKR-ND (Digi-Reel®)
• Category: Integrated Circuits (ICs) > Power Management (PMIC) > LED Drivers
• Status: Active
• Package: Tape & Reel (TR), Cut Tape (CT), Digi-Reel®
• Automotive Grade: Yes (AEC-Q100 qualified)

Functional Specifications

• Type: DC-DC LED Driver (Buck-Boost Topology)
• Output Channels: 12 channels
• Topology: Buck-Boost (supports both step-down and step-up voltage conversion)
• Dimming Method: PWM (Pulse Width Modulation)
• Internal Switch: Yes
• Supply Voltage Range: 4.5V ~ 40V
• Output Voltage: 4.75V ~ 5.25V (fixed)
• Switching Frequency: 10kHz ~ 2MHz
• Control Interface: – (not specified in data)
• Protection Features: Over-current, over-temperature, under-voltage lockout

Electrical Characteristics

• Input Voltage Min/Max: 4.5V / 40V
• Output Voltage Range: 4.75V ~ 5.25V
• Output Current per Channel: – (configurable via external resistors)
• Efficiency: Up to 95% (typical, dependent on load)
• Quiescent Current: – (refer to datasheet)

Physical & Environmental

• Operating Temperature: -40°C ~ 125°C (TA)
• Mounting Type: Surface Mount
• Package/Case: 24-PowerTSSOP (0.173″, 4.40mm wide)
• Supplier Package: 24-HTSSOP
• Thermal Resistance (θJA): – (refer to datasheet)

Key Features

• 12-Channel Configuration: Enables driving multiple LEDs in parallel or series.
• Buck-Boost Topology: Adapts to input voltages above or below the output voltage (e.g., 12V car battery to LED strings).
• PWM Dimming: Supports high-precision brightness control (up to 1000:1 dimming ratio).
• Automotive Compliance: AEC-Q100 qualified for reliability in automotive environments.
• Flexible Design: Adjustable switching frequency and current limiting via external components.

Applications

• Automotive lighting (headlights, taillights, interior lighting)
• LED display backlighting
• Industrial and commercial lighting systems
• High-brightness LED arrays (e.g., signage, architectural lighting)