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SG3525A Voltage Mode PWM Controller 500mA 400kHz 16-Pin PDIP Tube
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Περιγραφή
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 |
