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參數(shù)資料
| 型號(hào)： | SC5826-2CS |
| 廠商： | Semtech Corporation |
| 元件分類： | 基準(zhǔn)電壓源/電流源 |
| 英文描述： | HotSwitch⑩ USB Power Distribution Switch |
| 中文描述： | HotSwitch⑩USB電源配電開關(guān) |
| 文件頁數(shù)： | 1/8頁 |
| 文件大小： | 151K |
| 代理商： | SC5826-2CS |
SC5826
2000 SEMTECH CORP.
HotSwitch
USB Power Distribution Switch
PRELIMINARY - February 18, 2000
652 MITCHELL ROAD NEWBURY PARK CA 91320
1
ORDERING INFORMATION
DEVICE
(1)
DESCRIPTION
USB power distribution switches are high-side n-
channel MOSFET switches with built-in overcurrent
protection and low on-state resistance. The SC5826
switch is designed to meet the USB requirements for
power switching and maintenance-free fault protection
for self-powered & bus-powered hub applications. The
SC5826 features low on-state resistance to meet the
USB requirement for voltage drop and regulation. The
switch is controlled by an enable input that is
compatible with 3V and 5V logic. The enable input is
available with an active high or active low input for
maximum design flexibility. The device provides short
circuit current limiting at a value of less than 1.6A, well
below the USB limit of 5A. During an overcurrent
condition the device provides a fault notification to
signal the USB controller. An integrated thermal
protection circuit automatically shuts the switch off
when the junction temperature reaches its thermal
limit. The switch remains off until the junction
temperature drops approximately 10°C. The switch will
continue to cycle on and off until the fault is removed.
Inrush current limiting prevents the voltage drop on an
upstream port when the switch is enabled. An
undervoltage lockout circuit guarantees the switch is
initially off during start-up.
TEL:805-498-2111 FAX:805-498-3804 WEB:http://www.semtech.com
Note:
(1) Add suffix ‘TR’ for tape and reel.
ENABLE
PACKAGE
SC5826-1CS
Active High
SO-8
SC5826-2CS
Active Low
SO-8
FEATURES
Designed to meet
USB specification 1.1
power
management requirements
500mA continuous load current
High-side MOSFET switch with low R
DS(ON)
Short-circuit current protection
Internal thermal shutdown
Undervoltage lockout
Logic overcurrent output
Soft start circuit with slow turn-on time
APPLICATIONS
Universal Serial Bus (USB) power management
Self-powered or bus-powered USB hubs
Root hubs in desktop PCs & servers
Notebook PCs
Peripherals
BLOCK DIAGRAM
PIN CONFIGURATION
Top View
(8-Pin SOIC)
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