Microsemi SG1526BL-883B

降压，升压/降压降压，反激8V ~ 35V

Overview

The SG1526BL/883 is a high-performance monolithic pulse width modulator circuit designed for fixed-frequency switching regulators and other power control applications. Included in an 18-pin dual-in-line package are a temperature compensated voltage reference, sawtooth oscillator, error amplifier, pulse width modulator, pulse metering and steering logic, and two low impedance power drivers. Also included are protective features such as soft-start and undervoltage lockout, digital current limiting, double pulseinhibit, a data latch for single pulse metering, adjustable deadtime, and provision for symmetry correction inputs. For ease of interface, all digital control ports are TTL and B-series CMOS compatible. Active LOW logic design allows wired-OR connections for maximum flexibility. This versatile device can be used to implement single-ended or push-pull switching regulators of either polarity, both transformerless and transformer coupled. The SG1526BL/883 is characterized for operation over the full military ambientjunction temperature range of -55°C to +150°C. The SG2526 is characterized for operation from -25°C to +150°C, and the SG3526 is characterized for operation from 0°C to +125°C.

Features

Tube Package
Transistor Driver Output Type
Positive Output Configuration
Buck, Flyback Topology
2 Number of Outputs
1 Output Phases
8V ~ 35V Voltage - Supply (Vcc/Vdd)
1Hz ~ 500kHz Frequency - Switching
49% Duty Cycle (Max)
Yes Synchronous Rectifier
No Clock Sync
Enable, Reset, Soft Start Control Features
Surface Mount Mounting Type