MIC2568-1YSM Micrel Inc, MIC2568-1YSM Datasheet

IC PCMCIA/CARDBUS DUAL 28-SSOP

MIC2568-1YSM

Manufacturer Part Number
MIC2568-1YSM
Description
IC PCMCIA/CARDBUS DUAL 28-SSOP
Manufacturer
Micrel Inc
Type
PCMCIA/Cardbus Switchr
Datasheet

Specifications of MIC2568-1YSM

Number Of Outputs
4
Rds (on)
4 Ohm
Internal Switch(s)
Yes
Current Limit
300mA
Voltage - Input
3.3V, 5V
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
28-SSOP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
General Description
The MIC2568 dual-slot PC Card / CardBus power controller
is a V
5V PC Card (PCMCIA) slot power supply pins.
The MIC2568 can switch PC Card slot V
0V (ground), 3.3V and 5.0V and V
(ground), 3.3V, 5V, or high impedance at output currents of
up to 1A for V
well-controlled voltage rise and fall times. Each MIC2568
output voltage is switched by two digital inputs, typically
controlled from a separate PC Card logic controller.
The MIC2568 is designed for efficient operation. In standby
(sleep) mode the device draws very little quiescent current,
typically only 0.3 A. The power controller includes thermal
shutdown and protects itself and its PC Card ports with
current limiting. Full cross-conduction lockout protects the
system power supplies.
The MIC2568 is available in 28-pin SSOP and TSSOP
packages.
Typical Application
UL Recognized Component
May 2003
MIC2568
Micrel, Inc. • 1849 Fortune Drive • San Jose, CA 95131 • USA • tel + 1 (408) 944-0800 • fax + 1 (408) 944-0970 • http://www.micrel.com
CC
and V
CC
PP
and 250mA for V
power switch matrix that supports 3.3V and
between logic controller and
PCMCIA cards not shown.
Address and data lines
(Single system supply shown.)
two system power supplies.
inputs can be used with
Independent supply
PP
PP
. The MIC2568 features
voltages between 0V
CC
voltages between
Dual-Slot PC Card Power Control
1
Features
• Complete single-chip dual-slot power switch
• No external components required
• Output current limit and thermal shutdown
• Ultra-low power consumption
• Compatible with standard PC Card logic controllers
• Break-before-make switching (no transients)
• Digital V
• > 1A V
• > 200mA V
• 28-pin SSO and TSSO package
• Pb-free 28-pin SSO package
• UL recognized, file #179633
Applications
• Dual-slot PC Card power supply 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
• Portable and desktop computer docking stations
• Power supply management
• Power analog switching
Dual-Slot PC Card/CardBus Power Controller
CC
CC
output current per slot
PP
and V
output current per slot
PP
MIC2568
Preliminary
voltage selection
MIC2568
Micrel

Related parts for MIC2568-1YSM

MIC2568-1YSM Summary of contents

Page 1

... A. The power controller includes thermal shutdown and protects itself and its PC Card ports with current limiting. Full cross-conduction lockout protects the system power supplies. The MIC2568 is available in 28-pin SSOP and TSSOP packages. Typical Application Independent supply inputs can be used with two system power supplies ...

Page 2

... MIC2568 Ordering Information Part Number MIC2568-0BSM MIC2568-1BSM MIC2568-0YSM MIC2568-1YSM MIC2568-0BTS MIC2568-1BTS Pin Configuration Pin Description Pin Number Pin Number Pin Name MIC2568-0 MIC2568 15 15 2,26,28/12,14,16 2,26,28/12,14, EN0 EN1 11, 23 11, 23 MIC2568 Operating Temperature Range – +85 C 28-pin SSOP – +85 C 28-pin SSOP – ...

Page 3

... C ..................................................... 100 C/W JA Min Typ Max 0.7V CC3 IN –0.3 0.3V 1 0.12 0.3 1.4 1.5 1300 3900 5 10 100 200 800 100 300 1000 50 1000 50 1000 400 1000 400 1000 1.0 1.5 120 180 90 135 1800 3900 Micrel Units 5 CC3 MIC2568 ...

Page 4

... CC3 IN Note connected to ground. L Note 8. Measurement is from the Hi-Z- or 0V-state command to the beginning of the slope. Measurement does not apply when device is in current limit or thermal shutdown. Note connected to ground. L MIC2568 Conditions 10% of 3.3V CC OUT 10% of 5.0V CC OUT V = 10% to 90% of 3.3V CC OUT V ...

Page 5

... MIC2568 Output Timing Diagrams Enable OUT 3. shown generically 100 . Load capacitance is negligible. Refer to “MIC2568-0 Logic Table” for specific control logic input. At time 3.3V disabled Enable OUT 0 FLAG shown generically Refer to “MIC2568-0 Logic Table” for specific control logic input. ...

Page 6

... MIC2568 MIC2568-0 Logic Table CC5 CC3 MIC2568-1 Logic Table MIC2568-1 control logic is compatible with the Cirrus Logic CL-PD6710 and CL-PD672x-series logic controllers CC5 CC3 clamped to ground MIC2568 EN EN1 EN0 _PGM OUT V OUT CC PP 0V* Hi-Z 0V* Hi-Z 0V* Hi-Z 0V* 0V* 3.3V Hi-Z 3.3V 3.3V 3 ...

Page 7

... A EN0 CC5 CC3 CC3 CC5 B EN0 B EN1 May 2003 CC3 CC5 5V 3.3V Gate-Drive Charge Pump Control Logic Current Limit Thermal Shutdown Thermal Shutdown Current Limit Control Logic Gate-Drive Charge Pump MIC2568-0 GND CC3 CC5 3. Micrel A V OUT OUT OUT OUT PP MIC2568 ...

Page 8

... The MIC2568 itself is powered from the V nominal supply input). Bias its internal MOSFETs is gener- ated by a charge pump quadrupler. Refer to “5V-Only V Application” and Figure 4 for information on using the MIC2568 without a 3.3V supply. Output Current and Protection The MIC2568 meets or exceeds all PCMCIA current specifi- cations ...

Page 9

... MIC2568 5V-Only V Application CC To use the MIC2568 in applications where only a single available (no 3. connect the V IN pin. Refer to Figure 4. In this configuration, V CC3 will be 5V when either V switch or V OUT CC3 enabled. Address and data lines between logic controller and PCMCIA cards not shown. ...

Page 10

... A Purchaser’s use or sale of Micrel Products for use in life support appliances, devices or systems is at Purchaser’s own risk and Purchaser agrees to fully indemnify MIC2568 5.40 (0.213) 5 ...

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