OB2358AP

The OB2358AP is a highly integrated PWM controller IC designed for offline switch-mode power supplies (SMPS). It features low standby power consumption, high efficiency, and robust protection (e.g., over-voltage, over-current, and over-temperature).
Key characteristics:
- Primary-side regulation (PSR) for simplified design.
- Quasi-resonant (QR) operation for improved efficiency.
- Wide input voltage range (e.g., 85–265V AC).
- Auto-restart protection for fault recovery.
Commonly used in AC/DC adapters, LED drivers, and auxiliary power supplies, the OB2358AP reduces component count while ensuring reliable performance. Its low startup current (~5μA) and frequency jittering help minimize EMI.
For detailed specs, refer to the datasheet from On-Bright Electronics.

The OB2358AP is a PWM controller for power supplies. Equivalent or similar chips include:
- LD7535
- SG6848
- TNY278PN
- VIPer12A
- FSDM0265RN
These alternatives offer comparable functionality in SMPS designs. Always verify pin compatibility and electrical specs before substitution.

The OB2358AP is a 6-pin PWM controller IC commonly used in power supply applications. Here’s a brief breakdown:
1. VCC (Pin 1) – Power supply input.
2. GND (Pin 2) – Ground reference.
3. FB (Pin 3) – Feedback input for output voltage regulation.
4. CS (Pin 4) – Current sense input for overcurrent protection.
5. RT/CT (Pin 5) – Timing resistor/capacitor connection for oscillator frequency.
6. OUT (Pin 6) – PWM output to drive a power switch (e.g., MOSFET).
It integrates functions like soft-start, overcurrent protection, and frequency jitter for EMI reduction. Designed for offline flyback converters, it operates in DCM (Discontinuous Conduction Mode).

The OB2358AP is a PWM controller IC primarily used in power supply applications. Key areas include:
1. AC/DC Adapters – For laptops, monitors, and consumer electronics.
2. LED Drivers – Efficient power management for LED lighting.
3. Switching Power Supplies (SMPS) – Low-power offline flyback converters.
4. Chargers – Mobile phone and small appliance chargers.
5. Auxiliary Power Supplies – For appliances and industrial systems.
It features low standby power, high efficiency, and protection functions like OVP and OCP, making it suitable for compact, energy-efficient designs.

The OB2358AP is typically available in a DIP-8 (Dual In-line Package with 8 pins) or SOP-8 (Small Outline Package with 8 pins) format. These packages are common for power management ICs, offering compact size and ease of mounting. Check the datasheet for exact specifications, as variations may exist.