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参数资料
| 型号： | MIC2009YML TR |
| 厂商： | Micrel Inc |
| 文件页数： | 1/30页 |
| 文件大小： | 0K |
| 描述： | IC DISTRIBUTION SW ADJ 6-MLF |
| 标准包装： | 1 |
| 类型： | 高端开关 |
| 输出数： | 1 |
| Rds（开）： | 100 毫欧 |
| 内部开关： | 是 |
| 电流限制： | 可调 |
| 输入电压： | 2.5 V ~ 5.5 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 6-VQFN 裸露焊盘，6-MLF? |
| 供应商设备封装： | 6-MLF?（2x2） |
| 包装： | 标准包装 |
| 产品目录页面： | 1114 (CN2011-ZH PDF) |
| 其它名称： | 576-1681-6 |
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MIC20XX Family
Fixed and Adjustable Current Limiting
Power Distribution Switches
General Description
MIC20XX family of switches are current limiting, high-side
power switches, designed for general purpose power
distribution and control in digital televisions (DTV), printers,
set top boxes (STB), PCs, PDAs, and other peripheral
devices (see Functionality Table and Pin Configuration
drawings)
MIC20XX family’s primary functions are current limiting
and power switching. They are thermally protected and will
shutdown should their internal temperature reach unsafe
levels, protecting both the device and the load, under high-
current or fault conditions
Features include fault reporting, fault blanking to eliminate
noise-induced false alarms, output slew rate limiting, under
voltage detection, automatic-on output, and enable pin
with choice of either active low or active high enable. The
FET is self-contained, with a fixed- or user-adjustable
current limit. The MIC20XX family is ideal for any system
where current limiting and power control are desired.
The MIC201X (3 ≤ x ≤ 9) and MIC2019A switches offer a
unique new patented feature: Kickstart?, which allows
momentary high-current surges up to the secondary
current limit (I LIMIT _2nd) without sacrificing overall system
safety.
The MIC20xx family is offered, depending on the desired
features, in a space-saving 5-pin SOT-23, 6-pin SOT-23,
and 2mm x 2mm MLF ? packages.
Features
? MIC20X3 – MIC20X9
70m Ω typical on-resistance @ 5V
? MIC2005A/20X9A
170m Ω typical on-resistance @ 5V
? Enable active high or active low
? 2.5V – 5.5V operating range
? Pre-set current limit values of 0.5A, 0.8A, and 1.2A*
? Adjustable current limit 0.2A to 2.0A* (MIC20X7-
MIC20X9)
? Adjustable current limit 0.1A to 0.9A* (MIC20X9A)
? Undervoltage lock-out (UVLO)
? Variable UVLO allows adjustable UVLO thresholds*
? Automatic load discharge for capacitive loads*
? Soft-start prevents large current inrush
? Adjustable slew rate allows custom slew rates*
? Automatic-on output after fault
? Thermal protection
* Available on some family members
Applications
? Digital televisions (DTV)
? Set top boxes
Datasheets and support documentation can be found on
Micrel’s web site at: www.micrel.com .
?
?
?
?
?
?
PDAs
Printers
USB / IEEE 1394 power distribution
Desktop and laptop PCs
Game consoles
Docking stations
___________________________________________________________________________________________________________
Typical Application
5V Supply
Logic
Controller
VIN
MIC2005A
VIN VOUT
GND
V BUS
120μF
USB
Port
ON/OFF
OVERCURRENT/
1μF
EN
FAULT/
Figure 1. Typical Application Circuit
Kickstart is a trademark of Micrel, Inc.
MLF and Micro LeadFrame are registered trademarks of Amkor Technology, Inc.
Protected by U.S. Patent No. 7,170,732
CableCARD is a trademark of CableLabs.
Micrel Inc. ? 2180 Fortune Drive ? San Jose, CA 95131 ? USA ? tel +1 ( 408 ) 944-0800 ? fax + 1 (408) 474-1000 ? http://www.micrel.com
August 2011
M9999-080211-D
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