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OCX OC6701B

Manufacturer
OCXAsian Brands
MPN
OC6701B
LCSC Part #
C879356
Packaging
SOP-8
Customer #
Key Attributes
Step-up LED constant current driver
DatasheetOCX OC6701B
In-Stock: 8,470
8,470 In stock, ships now
Minimum: 5Multiple: 5Sales Unit: Piece
Add to BOM List
QtyUnit PriceTotal Amount
5+$ 0.1764$ 0.88
50+$ 0.1411$ 7.06
150+$ 0.126$ 18.90
500+$ 0.1071$ 53.55
2,500+$ 0.0987$ 246.75
4,000+$ 0.0937$ 374.80
Standard Packaging4000/Full Reel
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Products Specifications

All
TypeDescription
CategoryIntegrated Circuits (ICs)/Power Management (PMIC)/LED Drivers ICs
ManufacturerOCX
PackagingSOP-8
Output Voltage-
FeaturesBuilt-in soft-start;Over-Temperature Protection (OTP)
Frequency - Switching1kHz~1MHz
Switch Tube (Built-In/External)External
Voltage - Input(AC)-
Operating temperature-20℃~+85℃
Number of Channels1
TopologyBoost
Type-
Output Current-
Constant Current Accuracy-
Voltage - Input(DC)2.6V~100V
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Introduction

AI Translation

OC6701B is a high-efficiency, high-precision boost-type high-power LED constant-current driver control IC. It integrates a high-precision error amplifier, fixed off-time control circuit, constant-current drive circuit, and more, making it especially suitable for constant-current driving of high-power, multi-string high-brightness LEDs. The fixed off-time control scheme allows the off-time to be adjusted via an external capacitor, enabling the operating frequency to be configured per user requirements. By adjusting the external current-sense resistor, the drive current of high-brightness LEDs can be controlled to achieve the desired constant brightness. Applying a PWM signal to the EN pin also enables LED dimming. An internally integrated VDD Zener regulator, soft-start, and over-temperature protection circuit reduce external component count and improve system reliability. Available in SOP8 package.

The IC internally comprises an error amplifier, PWM comparator, inductor peak current limiting, fixed off-time control circuit, PWM logic, power switch driver, reference, and other functional blocks. The FB pin senses the LED output current; in steady state, the FB pin voltage VFB is regulated to approximately 250mV. The CS pin senses the inductor current to implement peak current control and overcurrent protection. The system off-time is set by capacitor COFF connected to the TOFF pin, which in turn determines the operating frequency. The COMP pin is the error amplifier output and accepts external resistors and capacitors for frequency compensation. A VDD Zener regulator, soft-start circuit, and over-temperature protection circuit are all integrated on-chip.

Features

AI Translation
  • Wide input voltage range: 2.6V ~ 100V
  • High efficiency: up to 95%
  • Maximum operating frequency: 1MHz
  • CS current limiting protection voltage: 250mV
  • FB current sensing voltage: 250mV
  • Chip supply undervoltage protection: 2.6V
  • Adjustable off-time
  • Intelligent over-temperature protection
  • Soft-start
  • Built-in VDD Zener diode

Applications

AI Translation
  • LED light cups
  • LED light strings powered by single-cell battery or higher
  • Flat panel display LED backlighting
  • High-power LED lighting