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Details for TPS61042DRBT by Texas Instruments
Electronic & Electrical Components > Semiconductors - ICs > Driver & Interface ICs
TPS61042DRBT
Buy Directly from Texas Instruments (53655 in stock) $0.5060
CONVERTER BOOST FOR WHITE LED SMD REEL
TPS61042DRBT image

TPS61042DRBT by Texas Instruments

CONVERTER BOOST FOR WHITE LED SMD REEL
Features
Available in a Small 3 mm u00d7 3 mm QFN Package
Current Source With Overvoltage Protection
Disconnects LEDs During Shutdown
Input Voltage Range: 1.8 V to 6 V
Internal 30 V Switch
Internal Power MOSFET Switch: 500 mA
No Load Quiescent Current: 38 u00b5A Typ
Operates With Small Output Capacitors Down to 100 nF
Precise Brightness Control Using PWM Signal or Analog Signal
Shutdown Current: 0.1 u00b5A Typ
Switching Frequency: Up to 1 MHz
Up to 85% Efficiency
Part Information
TPS61042DRBT image
RoHS Compliant
Description
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
CONVERTER, BOOST FOR WHITE LED, SMD; 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; RoHS Compliant: Yes Newark Electronics
Conv DC-DC Single Step Up 1.8V to 6V 8-Pin VSON EP T/R Avnet America
30-V, 500-mA switch boost converter in QFN-8 for white LED applications Texas Instruments