TOP201PN AC/DC Converter 5.7V 1.2mA IC DIP-8
The TOP201PN is part of the TOPSwitch family of integrated circuits designed for offline AC-DC power conversion applications. It combines a high-voltage power MOSFET, PWM controller, oscillator, and protection circuitry into a single compact package, significantly reducing the number of external components required in power supply designs. This makes it an excellent choice for compact, cost-effective, and efficient switch-mode power supplies.
With built-in features such as auto-restart, thermal shutdown, and current limiting, the TOP201PN ensures reliable and safe operation even under fault conditions. It supports multiple power supply topologies including flyback, buck, and boost, making it highly versatile for various applications like chargers, adapters, and embedded power systems. Its high efficiency and simplified design help reduce overall system size and improve performance.
Features:
- Integrated high-voltage MOSFET and PWM controller.
- Minimal external components required.
- Built-in thermal shutdown protection.
- Auto-restart and fault protection.
- High efficiency switching operation.
- Supports multiple power supply topologies.
- Compact through-hole package.
- Reduced EMI through controlled switching.
Specifications:
| Parameter | Value / Range |
|---|---|
| Output Power (230VAC) | 20-45 W (Flyback) |
| Output Power (85-265VAC) | 10-22 W (Flyback) |
| Shunt Regulator Voltage (Vc) | 5.5V – 6.1V ( 5.7V) |
| Control Pin Current (for regulation) | Typ. 4 mA |
| External Bias Current (Ib) | 1.5 – 4 mA |
| Oscillator Frequency | 90 – 110 kHz ( 100 kHz) |
| Maximum Duty Cycle | 64% – 70% (67%) |
| Minimum Duty Cycle | 1.0% – 3.0% (1.8%) |
| Breakdown Voltage (BVoss) | 700V (min) |
| ON-State Resistance (RDS(on) @ 25°C) | 7.8 – 9.0 Ω (7.8Ω) |
| Current Limit (Ilimit @ 25°C) | 0.83 – 1.17 A |
| Thermal Shutdown Temperature | 125°C – 145°C (145°C) |
| Dynamic Impedance (Zc) | 10 – 22 Ω (15Ω) |
Pinout:
| Pin | Name | Description |
|---|---|---|
| 1 | S | Source – High Voltage Return (primary-side ground) |
| 2 | S | Source – High Voltage Return |
| 2 | S | additional Source |
| 4 | C | Control pin – feedback input, bypass capacitor connection |
| 5 | D | Drain – high-voltage power MOSFET drain connection |
| 6 | S (HV RTN) | Source – High Voltage Return |
| 7 | S (HV RTN) | Source – High Voltage Return |
| 8 | S (HV RTN) | Source – High Voltage Return |
Applications:
- AC-DC power supplies.
- Phone chargers and adapters.
- Offline SMPS (Switch Mode Power Supplies).
- Industrial power systems.
- LED drivers.
- Consumer electronics power modules.
Package Includes:
- 1x TOP201PN AC/DC Converter 5.7V 1.2mA IC DIP-8.