Unisonic Technologies UPSL304
UPSL304 is a low startup current, Transition Mode, fixed on-time PFC control and PWM controller. These functions enable the LED driver to easily meet the accuracy average LED current and high power factor requirements. The UTC UPSL304 improves the performance and reduces the cost of the LED driver.| Part No. | UPSL304 |
|---|---|
| Datasheet | UPSL304 Download |
| Manufacturer |  Unisonic Technologies |
| Description | HIGH POWER FACTOR & ACCURACY CONSTANT CURRENT LED DRIVER |
| Buy | Stock & Price |
DESCRIPTION
The UTC●
FEATURES
* Transition Mode Fixed On-Time PFC Control * Accuracy Constant Current * Low BOM Cost * Inductor Size Reduction * Frequency Range Adjusted by The CT Pin * LED Protection: SCP, OLP, OVP * SOT-26 Package * Compatible Inductance Ballast * Incompatible Electronic Ballast● ORDERING INFORMATION Ordering Number UPSL304G-AG6-R Package SOT-26 Packing Tape Reel
● MARKING Copyright © 2016 Unisonic Technologies Co., Ltd 1 of 4 QW-R125-058.a UPSL304
● PIN CONFIGURATION Preliminary CMOS IC
● PIN
DESCRIPTION
PIN NO. 1 2 3 4 5 6 PIN NAME VCC GND DRV CT CS COMPDESCRIPTION
Power Supply Pin Ground Pin The DRV pin is connected to the gate driver to drive the external power switch. The CT pin is connected to the current source to charge the external capacitor and compare the COMP voltage to terminate the power switch. Current Sense Pin Feedback Compensation Network● BLOCK DIAGRAM VCC CS COMP LDO VREF 15V UVLO 6.5V 31V OVP 2V OCP ZCD 0.2V EA REF PWM R Q S R DRV R1 OUT GND...
