TPS61042DRBT

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Details for Texas Instruments

TPS61042DRBT

30-V, 500-mA Switch Boost Converter in QFN-8 for White LED Applications
Buy Directly from Texas Instruments (3660 in Stock)
$0.5800 per unit
Series Information for TPS61042DRBT - Texas Instruments

Features

  • feature
    Available in a Small 3 mm u00d7 3 mm QFN Package
  • feature
    Current Source With Overvoltage Protection
  • feature
    Disconnects LEDs During Shutdown
  • feature
    Input Voltage Range: 1.8 V to 6 V
  • feature
    Internal 30 V Switch
  • feature
    Internal Power MOSFET Switch: 500 mA
  • feature
    No Load Quiescent Current: 38 u00b5A Typ
  • feature
    Operates With Small Output Capacitors Down to 100 nF
  • feature
    Precise Brightness Control Using PWM Signal or Analog Signal
  • feature
    Shutdown Current: 0.1 u00b5A Typ
  • feature
    Switching Frequency: Up to 1 MHz
  • feature
    Up to 85% Efficiency

Description

CONVERTER BOOST FOR WHITE LED SMD REEL
The TPS61042 is a high frequency boost converter with constant current output that drives white LEDs or similar. The LED current is set with the external sense resistor (RS) and is directly regulated by the feedback pin (FB) that regulates the voltage across the sense resistor RS to 252 mV (typ). To control LED brightness, the LED current can be pulsed by applying a PWM (pulse width modulated) signal with a frequency range of 100 Hz to 50 kHz to the control pin (CTRL). To allow higher flexibility, the device can be configured where the brightness can be controlled by an analog signal as well, as described in the application information section. To avoid possible leakage currents through the LEDs during shutdown, the control pin (CTRL) disables the device and disconnects the LEDs from ground. For maximum safety during operation, the output has integrated overvoltage protection that prevents damage to the device in case of a high impedance output (e.g. faulty LED).

Specifications

Device Topology:
Boost (Step Up)
Input Voltage Min:
1.8V
Input Voltage Max:
6V
Output Voltage Max:
28V
Output Current Max:
60mA
Switching Frequency:
1MHz
No. of Outputs:
1Outputs
IC Mounting:
SMD
Driver Case Style:
SON
No. of Pins:
8Pins
Operating Temperature Min:
-40°C
Operating Temperature Max:
85°C
Product Range:
-
Automotive Qualification Standard:
-
RoHS Phthalates Compliant:
Yes
MSL:
MSL 2 - 1 year
SVHC:
No SVHC (27-Jun-2018)
Adjustable Output Voltage Max:
27.5V
Base Number:
61042
Data / Control Interface:
Serial
Device Type:
LED
Dimming Control Type:
PWM
Efficiency:
85%
Input Voltage:
1.8V to 6V
LED Display Type:
Discrete LED
LED Driver Application:
Backlighting Sidelight Display
Operating Temperature Range:
-40°C to +85°C
Output Current:
30mA
Output Voltage:
28V
Switch Output Current Isw Max:
0.5A
Termination Type:
Surface Mount Device
Topology:
Boost (Step Up)
Voltage Regulator Type:
Constant Current LED Driver

Alternate Descriptions

Avnet America

Conv DC-DC Single Step Up 1.8V to 6V 8-Pin VSON EP T/R

Avnet Europe

Conv DC-DC Single Step Up 1.8V to 6V 8-Pin VSON EP T/R

Texas Instruments

30-V, 500-mA Switch Boost Converter in QFN-8 for White LED Applications

Texas Instruments product