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TPS61042EVM-226 - 

Evaluation Board, White Light LED Bias Supply, TPS61042, Analogue, PWM Dimming, 1 Output

TEXAS INSTRUMENTS TPS61042EVM-226
TEXAS INSTRUMENTS TPS61042EVM-226

De afbeelding is alleen ter illustratie. Zie de productbeschrijving.

Artikelnr. fabrikant:
TPS61042EVM-226
Ordercode:
2115084
Technische datasheet:
(EN)
Bekijk alle technische documenten

Productgegevens

:
6V
:
Analogue, PWM
:
20mA
:
1Outputs
:
TPS61042
:
-
:
1.8V
:
-
:
Eval Board TPS61042
:
Boost (Step Up)
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Productoverzicht

TPS61042EVM-226 is a TPS61042 constant current white LED supply with PWM brightness control evaluation module. The evaluation module uses the TPS61042 boost converter to provide 20mA of bias current to a four element white LED from a 1.8V to 6V input. This evaluation module may be modified to drive more or less than four LEDs. It may also be modified to deliver a higher or lower output current to the LEDs. The evaluation module includes a CTRL pin and an ADJ pin that allows the user to dim the LEDs. The LEDs may be dimmed using either an analog or a PWM dimming scheme. The evaluation module is configured as a constant current supply. Current regulation is accomplished by regulating the voltage across a current sense resistor. The evaluation module does not operate correctly unless a load is present.
  • TPS61042 has input voltage range from 1.8V to 6V
  • Current source with overvoltage protection
  • Switching frequency is up to 1MHz
  • LED current can be pulsed by applying PWM signal, to control LED brightness
  • Disconnects LEDs during shutdown

Toepassingen

LED Lighting, Power Management, Consumer Electronics

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