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參數(shù)資料
| 型號： | SM647K |
| 廠商： | MICROSEMI CORP-ANALOG MIXED SIGNAL GROUP |
| 元件分類： | 模擬信號調理 |
| 英文描述： | RADIATION HARDENED HIGH EFFICIENCY, 5 AMP SWITCHING REGULATORS |
| 中文描述： | SPECIALTY ANALOG CIRCUIT, MBCY4 |
| 封裝： | TO-3, 4 PIN |
| 文件頁數(shù)： | 1/4頁 |
| 文件大小： | 56K |
| 代理商： | SM647K |
SM645/SM646/SM647
4/90 Rev 1.1 2/94
Copyright
1994
L
IN
F
IN
ITY
Microelectronics Inc.
11861 Western Avenue
∞
∞
Garden Grove, CA 92841
(714) 898-8121
∞
FAX: (714) 893-2570
1
FEATURES
Equivalent to the Unitrode PIC 645, 646, 647
15A current capability
Cost saving design reduces size, improves efficiency,
reduces noise and RFI
High operating frequency (to > 100KHz) results in
smaller inductor-capacitor filter and improved power
supply response time
High operating efficiency at 7A typical performance -
Rise and fall time < 300ns
Efficiency > 85%
HIGH RELIABILITY FEATURES
Available with high reliability processing
DESCRIPTION
The SM645/646/647 series of Power Output Stages are espe-
cially designed to be driven with standard PWM integrated
circuits to form an efficient switching power supply. The SM645,
SM646 and SM647 are optimized for non-isolated Buck and
Buck-Boost application. The hybrid circuit construction utilizes
thick film resistors on a beryllia substrate for maximum thermal
conductivity and resultant low thermal impedance. All of the
active elements in the hybrid are fully passivated.
SWITCHING REGULATOR
POWER OUTPUT STAGES
SM645/SM646/SM647
FUNCTIONAL DIAGRAM
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