| Distributor | Stock | Pricing | MOQ | PKG | Lead Time | Date Code | On Order Quantity | On Order Delivery | |
|---|---|---|---|---|---|---|---|---|---|
|
4,500 pcs
|
4500 pcs | On Request | 1 | On Request | On Request | On Request | On Request | On Request | |
|
90 pcs
|
90 pcs | On Request | 1 | On Request | On Request | On Request | On Request | 2026-02-23 21:33:16 |
| Category | |
| Manufacturer Name | |
| Conflict Minerals | |
| Control Features | |
| Duty Cycle | |
| Fault Protection | |
| Frequency | |
| Internal Switch(s) | |
| Mounting Type | |
| Operating Temperature | |
| Output Isolation | |
| Power (Watts) | |
| SVHC Present | |
| Supplier Device Package | |
| Topology | |
| Voltage |
The Power Integrations TOP249YN is part of the TOPSwitch-GX family of integrated offline switchers. This device cost-effectively integrates a high-voltage power MOSFET, PWM control, and fault protection onto a single CMOS chip. It is designed for flyback applications and features a voltage rating of 700V and an output power capability of up to 250W.
The TOP249YN operates with a switching frequency between 66kHz and 132kHz, offering design flexibility and reduced transformer size. It includes features such as external current limit programming, line under-voltage and over-voltage detection, and hysteretic thermal shutdown for automatic fault recovery. The device is packaged in a TO-220-7C form factor with through-hole mounting.
Key control features include frequency control, and fault protection mechanisms such as current limiting, over-temperature, and over-voltage protection. The device is designed for high efficiency and low system cost, with integrated soft-start and frequency jittering for reduced EMI.
This component is suitable for various power supply designs requiring isolated output. Its integrated nature simplifies board design and reduces the need for external components, contributing to lower overall system cost and improved reliability.
| Qty | Low | High |
|---|---|---|
| 1+ | $0.75 | $0.75 |
Estimated market price range - modelled values for guidance only, not live distributor offers.
The voltage rating for the TOP249YN is 700V.
The operating frequency range is 66kHz to 132kHz.
The maximum power output is 250W.
The TOP249YN uses Flyback topology.
The fault protection features include current limiting, over temperature, and over voltage protection.
The TOP249YN is mounted using the through-hole method.
The operating temperature range is -40°C to 150°C (TJ).