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TK11851L-G - White LED driver IC

Datasheet Summary

Description

The TK11851L-G is a pulse skipping step-up DC-DC converter IC designed for White LED driver applications, suitable for 2 to 4 LEDs, with the following built in : a high current switching transistor (400mA peak),an inductor current limit detector, a low voltage reference (Vref=0.515V),a high speed os

Features

  • Wide Operating Voltage: 2.3 to 10.0V.
  • Built-in Switching Transistor.
  • Active High On/Off Control: En pin.
  • Available Intensity Control Using En Pin with PWM Signal (Pulse Width Modulation).
  • Operates with Toko D31FB Miniature Coil (Current Limited by Input Current Sensor).
  • Few External Components.
  • OVP (Open-circuit Voltage Protection).
  • Small Package: SOT23L-8.
  • : VOP=2.3 to 10.0V.
  • On/Off: En.

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Datasheet Details

Part number TK11851L-G
Manufacturer TOKO
File Size 201.32 KB
Description White LED driver IC
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www.DataSheet4U.com POWER&RF White LED driver IC LEDIC TK11851L-G DESCRIPTION The TK11851L-G is a pulse skipping step-up DC-DC converter IC designed for White LED driver applications, suitable for 2 to 4 LEDs, with the following built in : a high current switching transistor (400mA peak),an inductor current limit detector, a low voltage reference (Vref=0.515V),a high speed oscillator, an error comparator, a zener diode for opencircuit protection (OVP) and an ON/OFF control(En pin). The IC works with a wide operating supply range (2.3~10V). The white LEDs are connected in series and driven at a constant current resulting in uniform brightness. TK11851L-G 2~4 LED DC-DC IC 。 (400mA)、 、、、 、(OVP)、On/off (En ) 。 2.3~10.
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