参数资料
| 型号： | IRPLMB1E |
| 厂商： | International Rectifier |
| 文件页数： | 1/13页 |
| 文件大小： | 0K |
| 描述： | KIT DESIGN BALLAST 220VAC |
| 标准包装： | 1 |
| 其它名称： | *IRPLMB1E |
IRPLMB1E
International Rectifier ? 233 Kansas Street, El Segundo, CA 90245 USA
IRPLMB1E - 25W 230VAC small size ballast using IR2520D
By
Cecilia Contenti
Topics Covered
Overview
Features
Electrical Characteristics
IR2520D Ballast Control IC
Circuit Description
Miniballast Circuit Diagram
Functional Description
Fault Conditions
Miniballast Layout
Design Tip: AUto-restart Option
Design Procedure to adapt the
design to different lamp types
1. Overview
Small sizes ballasts (often called Matchbox ballasts) are becoming very common in Europe to drive a wide
range of lamps with power between 18W and 26W like PLC 18W, PLT 18W, TC-L 18W, TC-L 24W, TC-F 18W,
TC-F 24W, TC-DEL/TEL 26W, T5 24W, T8 18W, T5C 22W and TR 22W. Limiting the maximum power to 25W
the design does not need to conform to THD and PF requirements and this allows saving the PFC stage
reducing the components count and maintaining a very small size.
The MINIBALLAST1 is an electronic ballast for driving 26W compact fluorescent lamps from 220VAC. The
circuit provides all of the necessary functions for preheat, ignition and on-state operation of the lamp and
also includes the EMI filter and the rectification stage. The ballast size is 36mmx55mm.
The circuit is built around the IR2520D Ballast Control IC. The IR2520D provides adjustable preheat time,
adjustable run frequency to set the lamp power, high starting frequency for soft start and to avoid lamp flash,
fault protection for open filament condition and failure to strike, low AC line protection and auto-restart after
line brownout conditions. The IR2520D is a low-cost solution with only 8 pins and allows the component
count for the complete solution to be reduced down to 19 components.
www.irf.com
1
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