Lzc8650c Ic Datasheet | Pdf
Typical operating range is 9.5V to 27V, with an internal clamp at 16V for the gate driver. Startup Current: Extremely low, typically around „Mouser Electronics“ Lietuva Pin Configuration (SOP-8 Package) The LZC8650C typically comes in an 8-pin SOP-8 package: taoic.oss-cn-hangzhou.aliyuncs.com Description
Inductors with high DC resistance (DCR) reduce efficiency. Worse, if the inductor saturates, peak current can exceed the IC’s internal limit, causing erratic behavior. The datasheet provides a formula for minimum inductance:
: Totem-pole driver designed for external power MOSFET configurations (e.g., matching 8N70 TO-220F switches). Internally clamped to 16V to protect the gate oxide layer. 6 VDD lzc8650c ic datasheet pdf
The LZC8650C is a high-performance, highly integrated LED lighting controller designed for buck-boost and flyback topologies. This comprehensive technical guide serves as an extended reference for engineer and hobbyists seeking detailed specification analysis, circuit configurations, and deployment strategies typically found in the official . 1. Overview and Key Features
The datasheet provides tested schematics for: Typical operating range is 9
Primary-side modulation (PSR), which eliminates the need for an optocoupler and secondary-side control circuitry, reducing cost and size. Key Performance Specifications
The chip's compact package and minimal external component requirements make it easy to design into a wide range of applications. Additionally, the datasheet includes detailed specifications, timing diagrams, and application notes to help designers get the most out of the LZC8650C. The datasheet provides a formula for minimum inductance:
High-efficiency PFC (Power Factor Correction) controllers for low-cost drivers. „Mouser Electronics“ Lietuva Protection Mechanisms
Transformer (EE22/13) AC Input +-----+ +--+ +--+-------+----> LED+ (85-300V) ----> | EMI |-+ | | | | | +-----+ | ) ( ) ( --- Output Cap | | | | | / \ (e.g. 100uF/100V) --- | | | +--|>|--+----> LED- CBB --- | | | Diode Cap | +--+ | +-----|-+ | Aux Winding [Drain] +--+ | | | +-----+ | )---> To FB (Pin 2) via Divider [DRV] --------|8N70 | | | (Pin 5) |MOSFET +--+ +-----+ | | v [Source]--[R_sense]---> To CS (Pin 3) | GND Application Component Optimization Guidelines
The LZC8650C is a highly efficient, single-stage Power Factor Correction (PFC) controller designed specifically for constant current LED lighting applications. It is widely used in commercial, industrial, and residential LED drivers due to its excellent regulation, low total harmonic distortion (THD), and cost-effective design.
The LZC8650C is housed in an 8-pin package. Each pin plays a crucial role in maintaining tight constant current regulation without needing an optocoupler or secondary feedback circuitry.