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OCX OC4000 product image
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OCX OC4000

Manufacturer
OCXAsian Brands
MPN
OC4000
LCSC Part #
C879353
Packaging
ESOP-8
Customer #
Key Attributes
Buck-Boost 1 5V~100V ESOP-8 LED Drivers ICs
Datasheetpdf iconOCX OC4000
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QtyUnit Price(Reference Only)Total Amount
1+$ 0.6804$ 0.68
200+$ 0.2644$ 52.88
500+$ 0.255$ 127.50
1,000+$ 0.2503$ 250.30
Standard Packaging3000/Full Reel
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Products Specifications

All
TypeDescription
CategoryIntegrated Circuits (ICs)/Power Management (PMIC)/LED Drivers ICs
ManufacturerOCX
PackagingESOP-8
Output Voltage-
Frequency - Switching-
FeaturesOver-Temperature Protection (OTP)
Switch Tube (Built-In/External)-
Voltage - Input(AC)-
Operating temperature-
TopologyBuck-Boost
Number of Channels1
Type-
Output Current-
Constant Current Accuracy1%
Voltage - Input(DC)5V~100V
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Introduction

AI Translation

OC4000 is a wide input/output voltage range, high-precision, high-efficiency buck-boost LED constant-current driver with high constant-current accuracy. The chip integrates a high-precision error amplifier, PWM comparator, inductor peak current limiting, switching frequency control, PWM logic, power transistor driver, voltage reference, over-temperature protection, soft-start, and other functional circuits. The chip samples the LED output current via the VCS pin; in steady state, the VCS pin voltage is held constant at approximately 250mV. The switching frequency is set by an external capacitor connected to the FOSC pin, and the CC pin serves as the frequency compensation pin, with an external capacitor used for frequency compensation. OC4000 integrates an internal VDD Zener regulator, along with soft-start and over-temperature protection circuits to enhance system reliability.

Features

AI Translation
  • Integrated 100V power MOS
  • Current-mode closed-loop control for high-accuracy constant current driving
  • Switching frequency adjustable via external capacitor
  • Integrated cycle-by-cycle current limiting, soft-start, and over-temperature protection for enhanced system reliability
  • Utilizes OuChuangXin's innovative patented circuit architecture with stable and reliable operation, fast dynamic response, and high-accuracy, high-efficiency buck-boost constant current driving capability
  • ESOP8 package with exposed thermal pad connected to SW pin
  • Buck-boost LED constant current driver
  • High constant current accuracy: 1% on-chip
  • Excellent line and load regulation
  • Wide input voltage range: 5V~100V
  • Output current above 1A
  • High efficiency: up to 93%
  • Adjustable switching frequency
  • Intelligent over-temperature protection
  • Soft-start
  • Integrated VDD Zener diode

Applications

AI Translation
  • LED automotive lighting
  • LED motorcycle and electric vehicle lighting
  • LED lighting