U3525L – Pulse Width Modulation Controller IC – DIP-16 Package
The UTC U3525 is a pulse-width modulator IC designed for switching power supply applications to improve performance and reduce external parts usage. 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. The output stage features NOR logic, giving a LOW output for an OFF state. An under-voltage lockout circuitry, which keeps the outputs off and the soft-start capacitor discharged for sub-normal input voltages, includes approximately 500 mV of hysteresis for jitter-free operation. The PWM circuits also feature a latch following the comparator. Tags, UC3525A, UC3525 PWM controller, SG3525A PWM controller, SG3525 PWM controller, SG3525 Pulse Width Modulation Controller, SG3525ANG, SG3525AP, SG25S25A.
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Features:
- Input Voltage: 8~35V
- On-chip +5.1V reference is trimmed to ±1%
- 100HZ ~ 500KHZ oscillator range
- Separate oscillator sync terminal
- Adjustable dead time control
- Internal soft-start
- Pulse-by-pulse shutdown
- Input under-voltage lockout with hysteresis
- Latching PWM to prevent multiple pulses
- Dual source/sink output drivers
Features/Specs:
- Manufacturer Part No: U3525L
- Manufacturer: (UTC) Unisonic Technologies Co.Ltd
- Input Voltage Range: 8 ~ 35V
- Collector Supply Voltage: 4.5 ~ 35V
- Sink/Source Load Current (steady state): 0 ~ 100mA
- Sink/Source Load Current (peak): 0 ~ 400mA
- Reference Load Current: 0 ~ 20mA
- Oscillator Frequency Range: 100 ~ 400KHz
- Oscillator Timing Resistor: 2 ~ 150KΩ
- Oscillator Timing Capacitor: 0.001 ~ 0.1µF
- Dead Time Resistor Range: 0 ~ 500Ω
- Junction Temperature Range: -55 ~ +125°C
- Operating Ambient Temperature Range: 0 ~ +70°C
- Mounting Style: Through Hole
- Package/Case: DIP-16
Applications:
- U3525L is mainly used in DC-DC inverters.
- It is used for regulating the power supply.
- It is used in the switching regulators of any polarity.
Datasheet: U3525L
Package Includes:
- 1 x U3525L – Pulse Width Modulation Controller IC – DIP-16 Package
Note: Product Images are shown for illustrative purposes only and may differ from the actual product.
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