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30-V, 500-mA switch boost converter in QFN-8 for white LED applications

TPS61042DRBR General Description

The TPS61042DRBR is a highly efficient boost converter tailored for driving white LEDs with a constant current output. By utilizing an external sense resistor, the LED current can be accurately set and regulated by the feedback pin to maintain a voltage across the sense resistor. This precise control mechanism ensures consistent brightness levels for the connected LEDs. With the option to modulate LED current using a PWM signal within a frequency range of 100 Hz to 50 kHz, users can achieve dynamic lighting effects with ease. Additionally, the device features a shutdown function that disables the LEDs during downtime, preventing leakage currents and ensuring operational safety. The integrated overvoltage protection further enhances the reliability of the TPS61042DRBR by safeguarding against potential damage in the event of a fault

Key Features

  • Current Source With Overvoltage Protection
  • Input Voltage Range: 1.8 V to 6 V
  • Internal 30 V Switch
  • Up to 85% Efficiency
  • Precise Brightness Control Using PWM Signal or
    Analog Signal
  • Switching Frequency: Up to 1 MHz
  • Internal Power MOSFET Switch: 500 mA
  • Operates With Small Output Capacitors Down to 100 nF
  • Disconnects LEDs During Shutdown
  • No Load Quiescent Current: 38 µA Typ
  • Shutdown Current: 0.1 µA Typ
  • Available in a Small 3 mm × 3 mm QFN Package


Source Content uid TPS61042DRBR Pbfree Code Yes
Part Life Cycle Code Active Pin Count 8
Reach Compliance Code compliant ECCN Code EAR99
HTS Code 8542.39.00.01 Input Characteristics STANDARD
JESD-609 Code e4 Length 3 mm
Moisture Sensitivity Level 2 Multiplexed Display Capability NO
Number of Channels 1 Number of Functions 1
Number of Segments 1 Number of Terminals 8
Operating Temperature-Max 85 °C Operating Temperature-Min -40 °C
Output Characteristics CONSTANT-CURRENT Peak Reflow Temperature (Cel) 260
Qualification Status Not Qualified Seated Height-Max 1 mm
Supply Current-Max 65 mA Supply Voltage-Max 6 V
Supply Voltage-Min 1.8 V Supply Voltage-Nom 3.6 V
Surface Mount YES Temperature Grade INDUSTRIAL
Terminal Finish Nickel/Palladium/Gold (Ni/Pd/Au) Terminal Form NO LEAD
Terminal Pitch 0.65 mm Terminal Position DUAL
Time@Peak Reflow Temperature-Max (s) NOT SPECIFIED Width 3 mm
fmax-Min 1 MHz Product Category LED Lighting Drivers
Series TPS61042 Mounting Style SMD/SMT
Number of Outputs 1 Output Output Current 60 mA
Input Voltage, Min 1.8 V Input Voltage, Max 6 V
Topology Boost Operating Frequency 1 MHz
Output Voltage 27.5 V Minimum Operating Temperature - 40 C
Maximum Operating Temperature + 85 C Features Load Disconnect During Shutdown
Development Kit TPS61042EVM-226 Height 0.88 mm
High Level Output Current 30 mA Input Voltage 1.8 V to 6 V
Moisture Sensitive Yes Output Type Constant Current
Product Type LED Lighting Drivers Factory Pack Quantity 3000
Subcategory Driver ICs Supply Current - Max 65 uA
Type Inductive Unit Weight 0.000808 oz

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AVAQ determines and packages all devices based on electrostatic discharge (ESD) and moisture sensitivity level (MSL) protection requirements.

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In Stock: 4,536

Minimum Order: 1

Qty. Unit Price Ext. Price
1+ $0.709 $0.71
10+ $0.591 $5.91
30+ $0.531 $15.93
100+ $0.471 $47.10
500+ $0.408 $204.00
1000+ $0.390 $390.00

The prices below are for reference only.