Texas Instruments UC3524AN Advanced Regulating PWM, 500kHz, DIP-16

The Texas Instruments UC3524AN is an advanced regulating pulse width modulator designed to maintain the highly versatile architecture of the industry standard UC3524 (SG3524) while delivering significant performance improvements. This PWM controller is pin-compatible with non-A models, allowing direct interchangeability in most existing applications without affecting power supply performance.

Featuring a precise 5V reference trimmed to ±1% accuracy, it eliminates the need for potentiometer adjustments. The error amplifier's input range includes 5V, removing the need for a reference divider. A current sense amplifier is useful in either the ground or power supply output lines. The device also includes a pair of 60V, 200mA uncommitted transistor switches, enhancing output versatility.

Key Features

• Precision reference internally trimmed to ±1%
• High-performance current limit function
• Under-voltage lockout with hysteretic turn-on
• Start-up supply current less than 4mA
• Wide common-mode input range for error and current limit amplifier
• PWM latch ensures single pulse per period
• Double pulse suppression logic
• 200ns shutdown through PWM latch
• Guaranteed frequency accuracy
• Thermal shutdown protection

Specifications

• Power Supply Controller Type: Double Ended Controller
• No. of Channels: 1 Channel
• Control Mode: Voltage Mode Control
• Supply Voltage Min: 10V
• Supply Voltage Max: 40V
• IC Case / Package: DIP
• No. of Pins: 16 Pins
• IC Mounting: Through Hole
• Switching Frequency Typ: 500kHz
• Operating Temperature Min: 0°C
• Operating Temperature Max: 70°C
• Input Voltage: 40V
• Output Current: 200mA
• Output Voltage: 60V

This green product contains no Sb/Br, ensuring environmental compliance.