UC3526DWTR
Voltage Mode PWM Controller 100mA 400kHz 18-Pin SOIC T/R
Inventory:6,740
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Part Number : UC3526DWTR
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Package/Case : SOIC (DW)-18
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Brands : Texas Instruments
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Components Categories : DC DC Switching Controllers
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Datesheet : UC3526DWTR DataSheet (PDF)
Overview of UC3526DWTR
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.
Key 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
Specifications
The followings are basic parameters of the part selected concerning the characteristics of the part and categories it belongs to.
Topology | Boost, Flyback, Forward, Full bridge, Half bridge, Push pull | Control mode | Voltage |
Duty cycle (max) (%) | 50 | Switching frequency (max) (kHz) | 400 |
Features | Error amplifier, Multi-topology, Soft start, Synchronization pin | UVLO thresholds on/off (V) | 7/6.8 |
Operating temperature range (°C) | 0 to 70 | Rating | Catalog, Military |
Gate drive (typ) (A) | 0.1 | Vin (max) (V) | 35 |
Warranty & Returns
Warranty, Returns, and Additional Information
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QA & Return Policy
Parts Quality Guarantee: 365 days
Returns for refund: within 90 days
Returns for Exchange: within 90 days
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