Lzc8650c Ic — Datasheet Pdf ((exclusive))

The LZC8650C is typically available in an 8-pin package (such as SOIC-8) with the following pin assignments:

Built-in hysteresis Over-Temperature Protection (OTP) and an output current foldback feature that reduces current as temperature rises.

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The is a high-performance, isolated LED driver controller IC designed for offline AC-DC LED lighting applications. It is typically utilized in non-dimmable or dimmable LED bulb and tube light designs. The chip operates in Boundary Conduction Mode (BCM) or Critical Conduction Mode (CrM) , offering a cost-effective solution for low-to-medium power LED drivers.

I can help generate exact component calculations or walk you through optimal PCB layout routing rules! lzc8650c ic datasheet pdf

Always check the “Note” sections in the datasheet’s tables—they often contain critical usage conditions (e.g., “output current derating required above 50°C ambient”).

. Monitors the AC input line voltage to protect the circuit during heavy surge conditions. Key Technical Parameters and Electrical Characteristics

| Pin | Name | Type | Description | | :-- | :--- | :--- | :--- | | 1 | CMP | I | Loop compensation for CC/CV control. Connect an RC network to ground. | | 2 | FB | I/O | Zero-crossing detection. Also integrates line compensation and over-voltage protection. | | 3 | CS | I | Current sense input. Monitors voltage across a resistor connected to the MOSFET source. | | 4 | GND | PWR | System ground and power ground. | | 5 | DRV | O | Gate driver output for the external MOSFET. Internally clamped at 16V. | | 6 | VDD | PWR | Power supply for the IC. | | 7 | OTP | I | Current fold-back temperature point setting. | | 8 | OVP | I | Input line over-voltage protection setting. |

Optimizes efficiency and minimizes switching stress on the power MOSFET. The LZC8650C is typically available in an 8-pin

High-efficiency PFC (Power Factor Correction) controllers for low-cost drivers. „Mouser Electronics“ Lietuva Protection Mechanisms

: Eliminates the need for opto-couplers and secondary control circuits, simplifying the system design .

The ZCD circuit monitors the core demagnetization of the flyback transformer through an auxiliary winding. When the secondary-side current drops to zero, the voltage on the ZCD pin falls below an internal threshold, instructing the GATE driver to turn the external MOSFET back on. This ensures seamless Boundary Conduction Mode operation. 5. Built-In Protection Features

The IC utilizes valley turn-on for the primary MOSFET, which reduces switching losses and EMI. Four-Segment Temperature Foldback: If you share with third parties, their policies apply

Current sense; connects to the source of the primary switch. Loop compensation to stabilize the control loop. Zero-crossing detection and over-voltage protection. Power supply pin. Gate driver for the primary MOSFET. Not connected. Integrated Protections Input and output over-voltage and under-voltage protection. Short Circuit: Reliable output short-to-ground protection. Thermal Protection:

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Commonly available in SOT23-6 or SOIC-8 packages. 3. Pinout Description and Functionality Go to product viewer dialog for this item.

is a highly integrated, high-performance LED driver controller designed for offline LED lighting applications . It is engineered by Lozen Technology (and closely related to the DIO8650C) to offer high power factor (PFC), excellent current accuracy, and simplified design for LED driving systems. By utilizing primary-side feedback, the IC eliminates the need for optocouplers and secondary feedback components, reducing costs and increasing system reliability.

: Provides high power isolation to protect systems from electrical hazards . Core Features

High-power isolated LED drivers, typically used in LED bulbs and tube lighting.