UC1525AJ
Voltage Mode PWM Controller 400mA 400kHz 16-Pin CDIP Tube
Inventory:7,191
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Part Number : UC1525AJ
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Package/Case : CDIP-16
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Brands : TI
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Components Categories : Switching Regulator or Controllers
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Datesheet : UC1525AJ DataSheet (PDF)
Overview of UC1525AJ
The UC1525A/1527A series of pulse width modulator integrated circuits are designed to offer improved performance and lowered external parts count when used in designing all types of switching power supplies. The on-chip 5.1-V reference is trimmed to 1% and the input common-mode range of the error amplifier includes the reference voltage, eliminating external resistors. A sync input to the oscillator allows multiple units to be slaved or a single unit to be synchronized to an external system clock. A single resistor between CT and the discharge terminals provides a wide range of dead-time adjustment. These devices also feature built-in soft-start circuitry with only an external timing capacitor required. A shutdown terminal controls both the soft-start circuitry and the output stages, providing instantaneous turn off through the PWM latch with pulsed shutdown, as well as soft-start recycle with longer shutdown commands.
Key Features
- 8-V to 35-V Operation
- 5.1-V Reference Trimmed to 1%
- 100-Hz to 500-kHz Oscillator Range
- Separate Oscillator Sync Terminal
- Adjustable Dead-Time Control
- Internal Soft Start
- Pulse-by-Pulse Shutdown
- Input Undervoltage Lockout With Hysteresis
- Latching PWM to Prevent Multiple Pulses
- Dual Source and Sink Output Drivers
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) (%) | 49 | Switching frequency (max) (kHz) | 500 |
Features | Error amplifier, Multi-topology, Soft start, Synchronization pin | UVLO thresholds on/off (V) | 7/6.8 |
Operating temperature range (°C) | -55 to 125 | Rating | Military |
Gate drive (typ) (A) | 0.5 | Vin (max) (V) | 35 |
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Warranty, Returns, and Additional Information
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Parts Quality Guarantee: 365 days
Returns for refund: within 90 days
Returns for Exchange: within 90 days
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