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PowTech(CR-PowTech(Shanghai)) PT4205 product image
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PowTech(CR-PowTech(Shanghai)) PT4205RoHS

Manufacturer
PowTech(CR-PowTech(Shanghai))Asian Brands
MPN
PT4205
LCSC Part #
C32982
Packaging
SOT-89-5
Customer #
Key Attributes
LED constant current driver
Datasheetpdf iconPowTech(CR-PowTech(Shanghai)) PT4205
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QtyUnit Price(Reference Only)Total Amount
1+$ 0.183$ 0.18
10+$ 0.1434$ 1.43
30+$ 0.1265$ 3.80
100+$ 0.1053$ 10.53
500+$ 0.0959$ 47.95
1,000+$ 0.0903$ 90.30
Standard Packaging4000/Full Reel
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Products Specifications

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TypeDescription
CategoryIntegrated Circuits (ICs)/Power Management (PMIC)/LED Drivers ICs
ManufacturerPowTech(CR-PowTech(Shanghai))
PackagingSOT-89-5
Output Voltage-
FeaturesLED open-circuit protection;Over-Temperature Protection (OTP)
Frequency - Switching1MHz
Switch Tube (Built-In/External)Built-in
Voltage - Input(AC)-
Operating temperature-40℃~+150℃
TopologyBuck
Number of Channels1
TypeDC-DC
Output Current1.2A
Voltage - Input(DC)5V~30V
Constant Current Accuracy3%
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Additional Information

TypeDetails
Minimum1
Multiple1
Standard Packaging4000
Sales UnitPiece

Introduction

AI Translation

PT4205 is a continuous inductor current conduction mode buck constant current source designed to drive one or more series-connected LEDs. It operates with an input voltage range of 5V to 30V, features a 200mV ±3% reference voltage, and the output current is set by an external resistor with a maximum of 1.2A. Depending on the input voltage and external components, PT4205 can drive LEDs with a total power of up to tens of watts. PT4205 integrates a power switch and uses high-side current sensing to set the average LED current. The DIM pin accepts both analog dimming and wide-range PWM dimming. A built-in over-temperature soft protection function automatically reduces LED current when the temperature is too high, improving system reliability and avoiding potential flickering issues during high-temperature operation. PT4205 is available in SOT89-5 and ESOP8 packages.

Features

AI Translation
  • Minimal external components
  • Input voltage range: 5V to 30V
  • Maximum output current up to 1.2A
  • 3% output current accuracy
  • Multiplexed DIM pin for LED on/off switching, analog dimming, and PWM dimming
  • Natural protection against LED open circuit
  • Peak efficiency up to 97%
  • Adjustable output constant current control
  • Over-temperature automatic current reduction for soft protection
  • ESOP8 package with enhanced thermal dissipation for high-power driving

Applications

AI Translation
  • Low-voltage LED spotlights (halogen lamp replacement)
  • Automotive LED lighting
  • LED backup lights
  • LED signal lights