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UCD7242-EP Datasheet – Synchronous-Buck Power Driver

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Part Number: UCD7242-EP

Function: Digital Dual Synchronous-Buck Power Drive

Package: QFN 32 Pin Type

Manufacturer: Texas Instruments

Pinouts:

UCD7242-EP datasheet

 

Description

The UCD7242, UCD7242-EP is a complete power system ready to drive two independent buck power supplies. High side MOSFETs, low side MOSFETs, drivers, current sensing circuitry and necessary protection functions are all integrated into one monolithic solution to facilitate minimum size and maximum efficiency.

Driver circuits provide high charge and discharge current for the high-side NMOS switch and the low-side NMOS synchronous rectifier in a synchronous buck circuit. The MOSFET gates are driven to +6.25 V by an internally regulated V GG supply. The internal V GG regulator can be disabled to permit the user to supply an independent gate drive voltage. This flexibility allows a wide power conversion input voltage range of 2.2 V to 18 V. Internal under voltage lockout (UVLO) logic ensures V GG is good before allowing chip operation.

 

UCD7242-EP Datasheet PDF Download


UCD7242-EP pdf

Other data sheets are available within the file:

UCD-7242EP, UCD7242EP, UCD7242MRSJREP, V62/14601-01XE

DMO565R Datasheet PDF – Green Mode Power Switch

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Part Number: DMO565R

Correct Partnumber : DM0565R

Function: Green Mode Fairchild Power Switch ( DM0565R – DM07652RB)

Package: TO-220 Type

Manufacturer: Fairchild Semiconductor

 

Image :

DMO565R

Description

The FSDM0565R, DMO565R is an integrated Pulse Width Modulator (PWM) and Sense FET specifically designed for high performance offline Switch Mode Power Supplies (SMPS) with minimal external components. This device is an integrated high voltage power switching regulator which combine an avalanche rugged Sense FET with a current mode PWM control block. The PWM controller includes integrated fixed frequency oscillator, under voltage lockout, leading edge blanking (LEB), optimized gate driver, internal soft start, temperature compensated precise current sources for a loop compensation and self protection circuitry. Compared with discrete MOSFET and PWM controller solution, it can reduce total cost, component count, size and weight simultaneously increasing efficiency, productivity, and system reliability. This device is a basic platform well suited for cost effective designs of flyback converters.

DMO565R Pinout
DMO565R Datasheet

Features

1. Internal Avalanche Rugged Sense FET
2. Advanced Burst-Mode operation consumes under 1 W at 240VAC & 0.5W load
3. Precision Fixed Operating Frequency (66kHz)
4. Internal Start-up Circuit
5. Improved Pulse by Pulse Current Limiting
6. Over Voltage Protection (OVP)
7. Over Load Protection (OLP)
8. Internal Thermal Shutdown Function (TSD)
9. Auto-Restart Mode
10. Under Voltage Lock Out (UVLO) with hysteresis
11. Low Operating Current (2.5mA)
12. Built-in Soft Start

Other data sheets are available within the file: DM0565R, DM0565RB, DM0565RBI, FSDM0565R

DMO565R Datasheet PDF


DMO565R pdf

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