TOP210PN Offline PWM Switch 5.8V 1.2mA IC DIP-8
The TOP210PN is a member of the TOPSwitch family, integrating a high-voltage power MOSFET with a PWM controller and control circuitry into a single DIP-8 package. It is specifically designed to simplify the design of switch-mode power supplies (SMPS) by minimizing the number of external components required, reducing both cost and circuit complexity.
This IC operates directly from rectified AC mains and is typically used in flyback converter topologies. It provides stable and efficient power conversion with built-in protection mechanisms such as thermal shutdown, current limiting, and auto-restart. Due to its reliability and compact integration, the TOP210PN is widely used in low-power applications across consumer and industrial electronics.
Features:
- Integrated high-voltage power MOSFET.
- Built-in PWM controller.
- Internal oscillator.
- Reduced external component count.
- Auto-restart protection.
- Thermal shutdown protection.
- Current limiting protection.
- High efficiency operation.
- Compact DIP package design.
- Reliable performance for offline applications.
Specifications:
| Parameter | Value (Typical) |
|---|---|
| Switching Frequency | 100 kHz |
| Maximum Duty Cycle | 67% (Min 64%, Max 70%) |
| Output Power (230 VAC or 110 VAC with doubler) | 0–8 W |
| Output Power (85–265 VAC universal) | 0–5 W |
| Shunt Regulator Voltage (CONTROL pin) | 5.8 V |
| CONTROL Supply/Discharge Current (Icd1, MOSFET enabled) | 1.2 mA |
| External Bias Current (IB) | 1.8 mA (range 1.5–3.0 mA) |
| CONTROL Pin Charging Current (Start-up, Vc=0V) | -1.9 mA |
| Dynamic Impedance (ZC) | 15 Ω |
| ON-State Resistance (RDS(ON), 25°C) | 36 Ω ( TOP210) |
| ON-State Resistance (100°C) | 59.4 Ω |
| Current Limit (TOP210, 25°C) | 0.300 A |
| Thermal Shutdown Temperature | 145 °C |
| Thermal Shutdown Hysteresis | 30 °C |
| Breakdown Voltage (DRAIN pin) | 700 V (Min) |
| Auto-restart Duty Cycle | 5% |
| CONTROL Pin Voltage Upper Threshold | 5.7 V |
| CONTROL Pin Voltage Lower Threshold | 4.7 V |
Pinout:
| Pin Number | Name | Description |
|---|---|---|
| 1 | SOURCE | Main source terminal (low side) |
| 2 | N/C | No internal connection (leave open) |
| 3 | N/C | No internal connection (leave open) |
| 4 | CONTROL | Control input (gate drive / logic) |
| 5 | DRAIN | Drain terminal (high side) |
| 6 | N/C | No internal connection (leave open) |
| 7 | N/C | No internal connection (leave open) |
| 8 | SOURCE (HV RTN) | High‑voltage return (source for HV side) |
Applications:
- AC-DC adapters.
- Battery chargers.
- Standby power supplies.
- Small appliance power supplies.
- Consumer electronics.
- Industrial low-power SMPS.
Packages Included:
- 1x TOP210PN Offline PWM Switch 5.8V 1.2mA IC DIP-8.
Documents:
- TOP210PN Datasheet.