Holtek Semiconductor HT7A4016
The HT7A4016 is a controller IC that includes the necessary features to implement off-line or DC-DC current mode control schemes with a minimal external parts count. The HT7A4016 features basic system protection functions such as Cycle-by-Cycle Current Limiting and Under Voltage Lock-Out (UVLO).| Part No. | HT7A4016 |
|---|---|
| Datasheet | HT7A4016 Download |
| Manufacturer |  Holtek Semiconductor |
| Description | Wide Temperature Range General Purpose Current Mode PWM Controller |
| Buy | Stock & Price |
GENERAL DESCRIPTION
Internal circuits include a specially designed Mixed-Mode/Analog Interface for multifunction and multi-topology control schemes (DC-DC Buck/Boost, Off-line AC-DC), a trimmed oscillator for precise duty-cycle control under voltage lockout with a start-up current of less than 0.5mA, a wide temperature range, precise voltage reference, internal Slope Compensation and Leading-Edge Blanking. A Multi-Function Pin can be used as a dimming function for LED driving, and as a primary feedback control for Primary-Side Feedback AC-DC applications.APPLICATIONS
● Switching AC-DC Adaptors● DC-DC Switching Buck/Boost Converters
● LED Backlights for LCD/LED TVs Application Circuits VIN=24V VCC Vref RT 0.1uF 2.2K GND CS MF GD COMP/FB 33pF 470uF/50V 10 1N4148 20 10K 470K 1nF 2K 46uH HFB20HJ20C 470uF /63V 40K Vo=55V/75W 0.1uF/100V IRF540 820 0.22 0.22 220pF Rev. 1.00 1 November 07, 2011 Datasheet pdf - w w w . D a t a S h e e t . c o . k r HT7A4016 Block Diagram VREF VCC 7 Pin Assign...
