Controller archives - Page 134 of 500

Description

The IR2520 is a complete adaptive ballast controller and 600V half-bridge driver integrated into a single IC for fluorescent lighting applications. The IC includes adaptive zero-voltage switching (ZVS), internal crest factor over-current protection, as well as an integrated bootstrap diode. The heart of this IC is a voltage controlled oscillator with externally programmable minimum frequency.

Features

• 600V Half Bridge Driver
• Integrated Bootstrap Diode
• Adaptive zero-voltage switching (ZVS)
• Internal Crest Factor Over-Current Protection
• 0 to 5VDC Voltage Controlled Oscillator
• Programmable minimum frequency
• Micropower Startup Current (150uA)
• Internal 15.6V zener clamp on Vcc […]

Block diagram

Part Number: M51784P

Function: 3-Phase Brushless Motor Control

Package: SOP 36 Pin Type

Manufacturer: Mitsubishi

M51784P Datasheet refer to M51785P Datasheet

Image :

Description

The M51784P, M51784SP, M51785P, M51785SP is a semiconductor integrated circuit designed for a single-chip controller for FDD spindle motor, consisting of power amplifier, Hall ajplifier, FG amplifier, oscilliator and speed discriminator and various protection circuits. The device shows superiority in speed switching function of 1 : 1.2 which enables miniaturization of motor sets and cost reduction.

Block Diagram :