ZXLD383

Features: • 85% efficiency• User adjustable output current• Single cell operation• Low saturation voltage• TSOT23-5 package• Available also in die form• Simple application circuitApplication• Garden lights• Door/pathway illumination• LED ...

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SeekIC No. : 004552420 Detail

ZXLD383: Features: • 85% efficiency• User adjustable output current• Single cell operation• Low saturation voltage• TSOT23-5 package• Available also in die form• Sim...

floor Price/Ceiling Price

Part Number:
ZXLD383
Supply Ability:
5000

Price Break

  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Upload time: 2024/3/28

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Product Details

Description



Features:

• 85% efficiency
• User adjustable output current
• Single cell operation
• Low saturation voltage
• TSOT23-5 package
• Available also in die form
• Simple application circuit





Application

• Garden lights
• Door/pathway illumination
• LED flashlight and torches
• LED backlights
• White LED driver
• Gated boost supply generator





Specifications

Part Number ZXLD383
Min.- Max. Input Voltage (V) 0.9 ~ 2.2
Output Voltage (V) Vin to 20
Typ Peak Output Current (A) -
Max Output Current (mA) -
LED Current Accuracy (%) 10
Frequency (kHz) typ 330
Efficiency (%) 85
Operating Temperature (C) -20 to +85
Quiescent Current (mA) typ -
Standby Quiescent Current (uA) typ 150


Supply Voltage (Vcc)........-0.6V to 6V
Output Voltage (Vout) ......-0.6V to 20V
Enable Voltage (Vena) .......-1V to 3.5V
Supply Current .............20mA
Output Switch Current.........800mA
Power Dissipation (TSOT23-5) .....450mW
Power Dissipation Die ...........1W
Operating Temperature Range .20 to +85
Storage Temperature Range. -55 to +150





Description

The ZXLD383 is a single or multi cell LED driver designed for applications requiring step-up voltage conversion from a very low input voltage. The IC generates constant current pulses that are ideal for driving single or multiple LEDs over a wide range of operating voltages. It includes an on/off enable input that can be driven directly from a photocell array or an open collector/drain logic output. The enable input features an ultra-low voltage drop diode to ground, eliminating the need for a photocell array isolation diode in Garden Light applications.

The ZXLD383 uses a PFM control technique to drive an internal switching transistor which exhibits a low saturation resistance. This ensures high efficiency, even for input voltages as low as 1.0V.

The IC can start up under full load and operates down to an input voltage of below 0.9V.

The ZXLD383 is offered in the space saving TSOT23-5 package or in die form, offering an excellent cost vs performance solution for single cell LED driving applications.






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