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PT4107

Features: ·>90% efficiency·Wide input range from 18V to 450V·Suitable for constant-current LED driver·Applications from a few mA to more than 1A Output·LED string from one to hundreds of diodes·PWM Low-Frequency Dimming via Enable pin·Linear Dimming via LD pin·Frequency jittering for better EMI...

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SeekIC No. : 004466328 Detail

PT4107: Features: ·>90% efficiency·Wide input range from 18V to 450V·Suitable for constant-current LED driver·Applications from a few mA to more than 1A Output·LED string from one to hundreds of diodes·P...

PT4107 Data Sheet

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Part Number:
PT4107
Supply Ability:
5000

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

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Upload time: 2024/4/28

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Product Details

Description



Features:

·>90% efficiency
·Wide input range from 18V to 450V
·Suitable for constant-current LED driver
·Applications from a few mA to more than 1A Output
·LED string from one to hundreds of diodes
·PWM Low-Frequency Dimming via Enable pin
·Linear Dimming via LD pin
·Frequency jittering for better EMI performance
·Programmable Over temp Protection (OTP)


Application

·DC/DC or AC/DC LED Driver applications
·RGB Backlighting LED Driver
·General purpose constant current source
·Signage and Decorative LED lighting
·Automotive Chargers


Pinout

Connection Diagram


Specifications

PARAMETER VALUE UNIT
VIN DC Supply Voltage 20 V
VIN Clamp Voltage 20 V
VIN Clamp Continuous Current 10 mA
VCS Input Voltage to CS Pin -0.3~7 V
VPWMD Input Voltage to PWMD Pin -0.3~7 V
VRI Input Voltage to RI Pin -0.3~7 V
Min/Max Operating Junction Temp. TJ -40~125
Min/Max Storage Temp. Tstg -55~150
Lead Temperature (Soldering, 10 secs) 260
Thermal Resistance Junction-Ambient
DIP
SOP		 90
150		 /W



Description

The PT4107 is a PWM high-efficiency LED driver control IC. It allows efficient operation of High Brightness (HB) LEDs from voltage sources ranging from 18VDC up to 450VDC. The PT4107 controls an external MOSFET at fixed switching frequency up to 300kHZ. The frequency can be programmed using a signal resistor. The LED string is driven at constant light output and enhanced reliability. The output current can be programmed between a few milliamps and up to more than 1A.

The output current on an LED string can be programmed to any value between zero and its maximum value by applying an external control voltage at the linear dimming control input of the PT4107. Moreover, PT4107 provides a low-frequency PWM dimming input that can accept an external control signal with duty ratio of 0-100% and a frequency of up to a few kilohertz.




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