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UC1526DW Folha de dados(PDF) 1 Page - Texas Instruments |
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UC1526DW Folha de dados(HTML) 1 Page - Texas Instruments |
1 / 11 page UC1526 UC2526 UC3526 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 pack- age are a temperature compensated voltage reference, sawtooth os- cillator, 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 cor- rection 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 regu- lators of either polarity, both transformerless and transformer cou- pled. 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. Regulating Pulse Width Modulator 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 BLOCK DIAGRAM 6/93 |
Nº de peça semelhante - UC1526DW |
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Descrição semelhante - UC1526DW |
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