UC3526ADWTR
ActiveVOLTAGE MODE PWM CONTROLLER 100MA 650KHZ 18-PIN SOIC T/R
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UC3526ADWTR
ActiveVOLTAGE MODE PWM CONTROLLER 100MA 650KHZ 18-PIN SOIC T/R
Technical Specifications
Parameters and characteristics for this part
| Specification | UC3526ADWTR |
|---|---|
| Clock Sync | True |
| Control Features | Enable, Frequency Control, Soft Start, Reset |
| Duty Cycle (Max) | 49 % |
| Frequency - Switching [Max] | 600 kHz |
| Frequency - Switching [Min] | 1 Hz |
| Function | Step-Up, Step-Up/Step-Down, Step-Down |
| Mounting Type | Surface Mount |
| Number of Outputs | 2 |
| Operating Temperature [Max] | 70 °C |
| Operating Temperature [Min] | 0 °C |
| Output Configuration | Positive |
| Output Phases | 1 |
| Output Type | Transistor Driver |
| Package / Case | 18-SOIC |
| Package / Case [y] | 0.295 in |
| Package / Case [y] | 7.5 mm |
| Supplier Device Package | 18-SOIC |
| Synchronous Rectifier | True |
| Topology | Forward Converter, Flyback, Push-Pull, Half-Bridge, Full-Bridge, Boost, Buck |
| Voltage - Supply (Vcc/Vdd) [Max] | 35 V |
| Voltage - Supply (Vcc/Vdd) [Min] | 7 V |
Pricing
Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly
| Distributor | Package | Quantity | $ | |
|---|---|---|---|---|
| Arrow | N/A | 1 | $ 2.86 | |
| 10 | $ 2.14 | |||
| 50 | $ 1.96 | |||
| 100 | $ 1.76 | |||
| Digikey | Cut Tape (CT) | 1 | $ 2.68 | |
| 10 | $ 2.40 | |||
| 25 | $ 2.27 | |||
| 100 | $ 1.97 | |||
| 250 | $ 1.87 | |||
| 500 | $ 1.68 | |||
| 1000 | $ 1.41 | |||
| Digi-Reel® | 1 | $ 2.68 | ||
| 10 | $ 2.40 | |||
| 25 | $ 2.27 | |||
| 100 | $ 1.97 | |||
| 250 | $ 1.87 | |||
| 500 | $ 1.68 | |||
| 1000 | $ 1.41 | |||
| Tape & Reel (TR) | 2000 | $ 1.34 | ||
| 4000 | $ 1.56 | |||
| 6000 | $ 1.29 | |||
| Texas Instruments | LARGE T&R | 1 | $ 2.32 | |
| 100 | $ 2.04 | |||
| 250 | $ 1.43 | |||
| 1000 | $ 1.15 | |||
Description
General part information
UC3526A Series
The UC1526A Series are improved-performance pulse-width modulator circuits intended for direct replacement of equivalent non- \x93A\x94 versions in all applications. Higher frequency operation has been enhanced by several significant improvements including: a more accurate oscillator with less minimum dead time, reduced circuit delays (particularly in current limiting), and an improved output stage with negligible cross-conduction current. Additional improvements include the incorporation of a precision, band-gap reference generator, reduced overall supply current, and the addition of thermal shutdown protection.
Along with these improvements, the UC1526A Series retains the protective features of under-voltage lockout, soft-start, digital current limiting, double pulse suppression logic, and adjustable deadtime. For ease of interfacing, all digital control ports are TTL compatible with active low logic.
Five volt (5V) operation is possible for \x93logic level\x94 applications by connecting VIN, VCand VREFto a precision 5V input supply. Consult factory for additional information.
Documents
Technical documentation and resources