SG3525A Voltage Mode PWM Controller 500mA 400kHz 16-Pin PDIP Tube
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SG3525A Voltage Mode PWM Controller 500mA 400kHz 16-Pin PDIP Tube
When employed in the design of all types of switching power supplies, the SG3525AN is a regulating pulse width modulator IC that is designed to deliver increased performance and reduced external parts count. The on-chip 5.1V reference is cut to 1%, and the error amplifier's input common-mode range covers the reference voltage, removing the need for additional resistors. Between the CT and the discharge terminals, a single resistor allows for a wide range of dead time adjustment. This gadget also includes soft-start circuitry, requiring only an external timing capacitor. With pulsed shutdown, a shutdown terminal controls both the soft-start circuitry and the output stages, allowing for fast turn-off via the PWM latch as well as soft-start recycle with longer shutdown orders.
Specifications
Type | Voltage Mode PWM Controller |
Control Method | Voltage |
Number of PWM Outputs | 1 |
Switching Frequency (kHz) | 400(Min) |
Maximum Duty Cycle (%) | 49(Typ) |
Rise Time (ns) | 100 |
Output Current (mA) | 500(Max) |
Fall Time (ns) | 50 |
Operating Supply Voltage (V) | 8 to 35 |
Minimum Operating Supply Voltage (V) | 8 |
Maximum Operating Supply Voltage (V) | 35 |
Maximum Supply Current (mA) | 20 |
Maximum Power Dissipation (mW) | 1000 |
Adjustable Output | No |
On/Off Pin | No |
Synchronous Pin | Yes |
Minimum Operating Temperature (°C) | 0 |
Maximum Operating Temperature (°C) | 70 |