DatasheetsPDF.com

UC3526

Unitrode
Part Number UC3526
Manufacturer Unitrode
Description Regulating Pulse Width Modulator
Published Oct 1, 2019
Detailed Description Regulating Pulse Width Modulator UC1526 UC2526 UC3526 FEATURES • 8 To 35V Operation • 5V Reference Trimmed To ±1% • 1H...
Datasheet PDF File UC3526 PDF File

UC3526
UC3526

Overview
Regulating Pulse Width Modulator UC1526 UC2526 UC3526 FEATURES • 8 To 35V Operation • 5V Reference Trimmed To ±1% • 1Hz To 400kHz Oscillator Range • Dual 100mA Source/Sink Outputs • Digital Current Limiting • Double Pulse Suppression • Programmable Deadtime • Under-Voltage Lockout • Single Pulse Metering • Programmable Soft-Start • Wide Current Limit Common Mode Range • TTL/CMOS Compatible Logic Ports • Symmetry Correction Capability • Guaranteed 6 Unit Synchronization DESCRIPTION The UC1526 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 setting logic, and two low impedance power drivers.
Also included are protective features such as soft-start and under-voltage lockout, digital current limiting, double pulse inhibit, 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 UC1526 is characterized for operation over the full military temperature range of -55°C to +125°C.
The UC2526 is characterized for operation from -25°C to +85°C, and the UC3526 is characterized for operation from 0° to +70°C.
BLOCK DIAGRAM 6/93 ABSOLUTE MAXIMUM RATINGS (Note 1, 2) Input Voltage (+VIN) .
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
+40V Collector Supply Voltage (+VC) .
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
+40V Logic Inputs .
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
-0.
3V to +5.
5V Analog Inputs .
.
.
.
.
...


Similar Datasheet


@ 2014 :: Datasheetspdf.com :: Semiconductors datasheet search & download site. (Privacy Policy & Contact)