MICREL MIC2560-1BWM, MIC2560-0BWM Datasheet

MIC2560 Micrel

MIC2560

PCMCIA Card Socket VCC and VPP Switching Matrix

General Description

The MIC2560 VCC and VPP Matrix controls PCMCIA (Per­sonal Computer Memory Card International Association)
memory card power supply pins, both VCC and VPP. The
MIC2560 switches voltages from the system power supply to
VCC and VPP. The MIC2560 switches between the three V

CC

voltages (OFF, 3.3V and 5.0V) and the VPP voltages (OFF,
0V, 3.3V, 5V, or 12.0V) required by PCMCIA cards. Output
voltage is selected by two digital inputs for each output and
output current ranges up to 1A for V

and 200mA for VPP.

CC

The MIC2560 provides power management capability under
the control of the PC Card controller and features overcurrent
and thermal protection of the power outputs, zero current
“sleep” mode, suspend mode, low power dynamic mode, and
on-off control of the PCMCIA socket power.

The MIC2560 is designed for efficient operation. In standby
(sleep) mode the device draws very little quiescent current,
typically 0.01µA. The device and PCMCIA ports are pro­tected by current limiting and overtemperature shutdown.
Full cross-conduction lockout protects the system power
supply.

Ordering Information

Part Number Junction Temp. Range* Package

MIC2560-0BWM –40°C to +70°C 16-lead Wide SOP
MIC2560-1BWM –40°C to +70°C 16-lead Wide SOP

Refer to “Control Logic Table” for -0/-1 version explanation.

Applications

• PCMCIA power supply pin voltage switch

• Font cards for printers and scanners

• 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 sanagement

• Power analog switching

Features

• Complete PCMCIA VCC and VPP switch matrix
in a single IC

• No external components required

• Logic compatible with industry standard
PCMCIA controllers

• No voltage overshoot or switching transients

• Break-before-make switching

• Output current limit and overtemperature shutdown

• Digital flag for error condition indication

• Ultralow power consumption

• Digital selection of VCC and VPP voltages

• Over 1A VCC output current

• 200mA VPP (12V) output current

• Options for direct compatibility with
industry standard PCMCIA controllers

• 16-Pin SO package

Typical Application

System Power Supply

12V 3.3V 5V

Address and data lines

between logic controller and

PCMCIA cards not shown.

VPP IN

PCMCIA

Card Slot

Controller

Micrel, Inc. • 1849 Fortune Drive • San Jose, CA 95131 • USA • tel + 1 [phone] • fax + 1 [phone] • http://www.micrel.com

EN0
EN1
V

CC5

V

CC3

EN
EN

V

CC3

MIC2560

Power

Controller

GND

November 1999 1 MIC2560

IN

V

IN

CC5

VPP OUT
V

OUT

CC

V
V

Motherboard

1

PP

2

PP

V

CC

PCMCIA

Card

MIC2560 Micrel

Pin Configuration

Logic Block Diagram

1V

IN

CC3

IN

GND

EN

EN
EN0
EN1

2
3
4
5
6
7
8

OUT

V

CC

V

CC3

V

CC5

V

CC3

16 V
15
14
13
12
11
10

9

OUT

CC

IN

V

CC5

VCC OUT

OUT

V

PP

IN

V

PP

NC
NC
FLAG

Both V

All three V

IN pins must be connected.

CC3

OUT pins must be connected.

CC

V

IN

PP

0.5Ω

V

CC5_EN

V

CC3_EN

V

CC3

EN1

EN0

IN

Control

Logic

V

PP OUT

0.7Ω

V

CC OUT

0.07Ω

2Ω

V

CC5

IN

Flag

I

/ Thermal Shut Down

Limit

0.04Ω

GND

MIC2560 2 November 1999

MIC2560 Micrel

Absolute Maximum Ratings (Notes 1 and 2)

Power Dissipation, T

AMBIENT

≤ 25°C ....

Internally Limited

SOP ............................................................. 800 mW

Derating Factors (To Ambient)

SOP ............................................................ 4 mW/°C

Storage Temperature ............................–65°C to +150°C

Maximum Operating Temperature (Die) ................ 125°C

Operating Temperature (Ambient) ..........–40°C to +70°C

Lead Temperature (5 sec)......................................260°C

Supply Voltage, V

V

IN ....................................................... V

CC3

V

IN ............................................................. 7.5V

CC5

...................................................

PP IN

Logic Input Voltages..................................–0.3V to +15V

Output Current (each Output)

V

PP OUT

V

CC OUT

V

CC OUT

............................

...................................

, Suspend Mode.............................. 600mA

>200mA, Internally Limited

>1A, Internally Limited

CC5

15V

IN

Electrical Characteristics:

(Over operating temperature range with V

Symbol Parameter Conditions Min Typ Max Units
Input

V

IH

V

IL

I

IN

Logic 1 Input Voltage 2.2 15 V
Logic 0 Input Voltage –0.3 0.8 V
Input Current 0 V < VIN < 5.5V ±1 µA

VPP Output

I

PP OUT

High-Impedance Output Shutdown Mode 1 10 µA

Hi-Z Leakage Current 1V ≤ V
I

PPSC

R

O

R

O

Short Circuit Current Limit V
Switch Resistance, select V

I

= –100mA (sourcing)

PP OUT

Switch Resistance, select V
I

= 50µA

PP OUT

VPP Switching Time

t

1

t

2

t

3

t

4

Output Turn-On Rise Time V
Output Turn-On Rise Time V
Output Turn-On Rise Time V
Output Rise Time V

VCC Output

I

CC OUT

High Impedance Output 1V ≤ V

Hi-Z Leakage Current, Note 3
I

CCSC

R

O

R

O

Short Circuit Current Limit V
Switch Resistance, I

V

CC OUT

= 5.0V

Switch Resistance, I
V

CC OUT

= 3.3V

VCC Switching Time

t

1

t

2

t

3

t

4

Rise Time V
Rise Time V
Fall Time V
Rise Time V

IN = 3.3V, V

CC3

IN = 5.0V, VPP IN = 12V unless otherwise specified.)

CC5

OUT ≤ 12V

PP

= 0 0.2 A

PP OUT

OUT = 12V 0.55 1 Ω

PP

select V
select V

PP
PP
PP
PP

CC OUT

CC OUT

CC OUT

CC OUT
CC OUT
CC OUT
CC OUT

OUT = 5V 0.7 1 Ω

PP

OUT = 3.3V 2 3 Ω

PP

= clamped to ground 0.75 2 kΩ

PP OUT

OUT = hi-Z to 5V 50 µs
OUT = hi-Z to 3.3V 40 µs
OUT = hi-Z to 12V 300 µs
OUT = 3.3V or 5V to 12V 300 µs

≤ 5V 1 10 µA

CC OUT

= 0 1 2 A

= –1000mA (sourcing) 70 100 mΩ

= –1000mA (sourcing) 40 66 mΩ

= 0V to 3.3V, I
= 0V to 5.0V, I

= 1A 100 600 µs

OUT

= 1A 100 500 µs

OUT

= 5.0V to 3.3V 300 µs
= hi-Z to 5V 400 µs

November 1999 3 MIC2560

MIC2560 Micrel

Symbol Parameter Conditions Min Typ Max Units
Power Supply

I

CC5

I

CC3

I

IN V

PP

V

IN Operating Input Voltage V

CC5

V

IN Operating Input Voltage V

CC3

V

PP IN

Suspend Mode (Note 4)

I

CC3

R

ON VCC

Note 1. Functional operation above the absolute maximum stress ratings is not implied.
Note 2. Static-sensitive device. Store only in conductive containers. Handling personnel and equipment should be grounded to prevent damage from

Note 3. Leakage current after 1,000 hours at 125°C may increase up to five times the initial limit.
Note 4. Suspend mode is a pseudo-power-down mode the MIC2560 automatically allows when V

V

IN Supply Current I

CC5

V

IN Supply Current V

CC3

IN Supply Current VCC active, V

PP

(I

PP OUT

= 0)

= 0 0.01 10 µA

CC OUT

CC OUT

V

CC OUT

V

PP OUT
CC5
CC3

= 5V or 3.3V, I
= hi-Z (Sleep mode) 0.01 10 µA

= 5V or 3.3V 15 50 µA

PP OUT

= hi-Z, 0 or V

IN ≥ V

CC3

IN ≤ V

CC5

PP

IN V
IN 2.8 3.3 V

= 0 30 50 µA

CC OUT

0.01 10 µA

IN 5.0 6 V

CC3

CC5

IN V

Operating Input Voltage 8.0 12.0 14.5 V

Active Mode Current V

V

CC OUT RON

= 0V, V

PP IN

= enabled

V

CC3

VPP = disabled (hi-Z or 0V)
V

= 0V, V

PP IN

V

= enabled

CC3

CC5

CC5

= V

= V

CC3

CC3

= 3.3V 30 µA

= 3.3V 4.5 Ω

VPP = disabled (hi-Z or 0V)

static discharge.

= 0V, VPP OUT is deselected, and VCC OUT =

3.3V is selected. Under these conditions, the MIC2560 functions in a reduced capacity mode where VCC output of 3.3V is allowed, but at
lower current levels (higher switch on-resistance).

PP IN

MIC2560 4 November 1999