- RS Stock No.:
- 197-7616
- Mfr. Part No.:
- UC1525AJ
- Brand:
- Texas Instruments
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Added
Price Each (In a Tube of 25)
£13.723
(exc. VAT)
£16.468
(inc. VAT)
Units | Per unit | Per Tube* |
25 + | £13.723 | £343.075 |
*price indicative |
- RS Stock No.:
- 197-7616
- Mfr. Part No.:
- UC1525AJ
- Brand:
- Texas Instruments
Technical Reference
Legislation and Compliance
- COO (Country of Origin):
- TH
Product Details
Description
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.
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
Applications
- Off-Line and DC/DC Power Supplies
- Converters Using Voltage Mode
- Single-Ended or Two-Switch Topology Designs
- Solar Inverters
- Welding Inverters
- Motor Control
- Battery Chargers
Specifications
Attribute | Value |
---|---|
Maximum Switching Frequency | 500 KHz |
Output Current | 500 mA |
Number of Outputs | 2 |
Control Method | Voltage |
Fall Time | 50ns |
Package Type | CDIP |
Rise Time | 100ns |
Pin Count | 16 |
PWM Controller Type | Voltage Mode |
Related links
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- Texas Instruments UC1524AJ 40 V CDIP
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- Texas Instruments UC1844J 2.5 V CDIP
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