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MIC2562A 参数 Datasheet PDF下载

MIC2562A图片预览
型号: MIC2562A
PDF下载: 下载PDF文件 查看货源
内容描述: PCMCIA / CardBus的插座电源控制器 [PCMCIA/CardBus Socket Power Controller]
分类和应用: 插座控制器PC
文件页数/大小: 12 页 / 110 K
品牌: MICREL [ MICREL SEMICONDUCTOR ]
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MIC2562A
Micrel
MIC2562A
PCMCIA/CardBus Socket Power Controller
General Description
The MIC2562A PCMCIA (Personal Computer Memory Card
International Association) and CardBus power controller
handles all PC Card slot power supply pins, both V
CC
and
V
PP
. The MIC2562A switches between the three V
CC
volt-
ages (0V, 3.3V and 5.0V) and the V
PP
voltages (OFF, 0V,
3.3V, 5V or 12.0V) required by PC Cards. The MIC2562A
switches voltages from the system power supply to V
CC
and
V
PP
. Output voltage is selected by two digital inputs each and
output current ranges up to 1A for V
CC
and 250mA for V
PP
.
The MIC2562A provides power management capability con-
trolled by the PC Card logic controller. Voltage rise and fall
times are well controlled. Medium current V
PP
and high
current V
CC
output switches are self-biasing:
no +12V sup-
ply is required for 3.3V or 5V output.
The MIC2562A is designed for efficient operation. In standby
(sleep) mode, the device draws very little quiescent current,
typically 0.3µA. The device and PCMCIA port is protected by
current limiting and overtemperature shutdown. Full cross-
conduction lockout protects the system power supply during
switching operations.
The MIC2562A is an improved version of the MIC2562,
offering lower on-resistance and a V
CC
pull-down clamp in
the OFF mode. It is available in a 14-pin (0.150") SOIC, and
the -1 logic option is also available in 16-pin TSSOP
All support documentation can be found on Micrel’s web
site at www.micrel.com.
Features
• High-efficiency, low-resistance switches require no
12V bias supply
• No external components required
• Output current limit and overtemperature shutdown
• Open-drain flag for error condition indication
• Ultra-low power consumption
• Complete PC Card/CardBus V
CC
and V
PP
switch matrix
in a single package
• Logic compatible with industry standard PC Card logic
controllers
• No voltage shoot-through or switching transients
• Break-before-make switching
• Digital selection of V
CC
and V
PP
voltages
• Over 1A V
CC
output current
• Over 200mA V
PP
output current
• Pb-free SOIC packages
• UL recognized, file #179633
Applications
PC Card power supply pin voltage switch
CardBus slot power supply control
Data collection systems
Machine control data input systems
Wireless communications
Bar code data collection systems
Instrumentation configuration/datalogging
Docking stations (portable and desktop)
Power supply management
Analog power switching
Typical Application
5V
System
Power 3.3V
Supply
12V
(opt)
VPP IN VCC3 IN VCC5 IN
(opt)
VPP1
VPP2
PCMCIA
Card Slot
EN0
EN1
MIC2562
VCC
PCMCIA
Card Slot
Controller
VCC5_EN
VCC3_EN
UL Recognized Component
Micrel, Inc. • 1849 Fortune Drive • San Jose, CA 95131 • USA • tel + 1 (408) 944-0800 • fax + 1 (408) 944-0970 • http://www.micrel.com
June 2004
1
M9999-062204