TOP233YN Offline Switching Regulator 5.85V 1.5mA TO-220-7B
TOP233YN An integrated offline switcher IC commonly used in AC-DC power supplies for efficient voltage conversion.
40.00 EGP
In stockSKU 3496300147496
Buy Now
Shipping across EgyptDelivered to your door
Cash on deliveryPay when your order arrives
Not sure it fits your project?Ask us on WhatsApp - we reply fast
TOP233YN Offline Switching Regulator 5.85V 1.5mA TO-220-7B
The TOP233YN belongs to the TOP Switch-FX family of power management ICs, designed to simplify the design of switch-mode power supplies (SMPS). It integrates a high-voltage power MOSFET, PWM controller, start-up circuitry, and multiple protection features into a single chip. This high level of integration reduces the need for external components, making it ideal for compact and cost-effective power supply designs such as adapters, chargers, and standby power supplies.
This IC operates directly from rectified AC mains, supporting universal input ranges. It includes advanced features like soft-start, auto-restart during fault conditions, thermal shutdown, and line over/under-voltage protection. The device also supports frequency jittering to reduce EMI and allows flexible configuration through its multi-function pin. Its TO-220-7B package provides better thermal performance, making it suitable for higher power applications.
Features:
- Integrated high-voltage power MOSFET.
- Built-in PWM controller.
- Soft-start for reduced start-up stress.
- Auto-restart and fault protection.
- Thermal shutdown protection.
- Line over-voltage and under-voltage protection.
- Frequency jittering for EMI reduction.
- Cycle skipping for low no-load power consumption.
- External current limit programmability.
- Remote ON/OFF capability.
- High efficiency operation.
- Reduced external component count.
Specifications:
| Parameter | Value / Range |
|---|---|
| Switching Frequency | 132kHz (66kHz optional) |
| Maximum Duty Cycle | 78% |
| Breakdown Voltage (BVdss) | 700V |
| Peak Drain Current | 1.6A |
| Typical RDS(on) | 4.0Ω (at Tj=25°C) |
| CONTROL Pin Voltage | 5.85V (shunt regulation) |
| CONTROL Pin Current | 1.5mA (enabled) |
| MULTI‑FUNCTION Pin Voltage | 2.6V (source) |
| Remote Off Consumption | 160mW (230VAC) |
| Soft‑Start Time | 10ms |
| Auto‑Restart Duty Cycle | 4% |
| Thermal Shutdown | 135°C with 70°C hysteresis |
| Operating Junction Temp | -40°C to +150°C |
Pinout:
| Pin Number | Pin Name | Description |
|---|---|---|
| 1 | CONTROL (C) | Error amplifier and feedback current input. Shunt regulator connection. Auto‑restart / compensation capacitor. |
| 3 | MULTI-FUNCTION (M) | OV/UV line sensing, line feed‑forward with DCmax reduction, external current limit setting, remote ON/OFF, synchronization. |
| 4 | SOURCE (S) | Output MOSFET source connection. Primary side circuit reference. |
| 5 | FREQUENCY (F) | Switching frequency select: tie to SOURCE for 132 kHz, tie to CONTROL for 66 kHz. |
| 7 | DRAIN (D) | High‑voltage power MOSFET drain. Internal start‑up bias current. Current limit sense point. |
Applications:
- AC-DC power adapters.
- Battery chargers.
- Standby power supplies.
- TV/DVD/set-top box power supplies.
- Industrial SMPS.
- LED drivers.
- Consumer electronics power supplies.
Package Included:
- 1x TOP233YN Five-terminal MOSFET 5.85V 1.5mA TO-220-7B.
Documents:
Related products
