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Maxim Integrated Semiconductor Electronic Components Datasheet

MAX1602 Datasheet

Single-Channel CardBus and PCMCIA VCC/VPP Power-Switching Network

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19-1125; Rev 0; 9/96
Single-Channel CardBus and PCMCIA VCC/VPP
Power-Switching Network
_______________General Description
The MAX1602 DC power-switching IC contains a net-
work of low-resistance MOSFET switches that deliver
selectable VCC and VPP voltages to a single CardBus
or PC Card host socket. Key features include low-
resistance switches, small packaging, soft-switching
action, and compliance with PCMCIA specifications for
3V/5V switching. 3.3V-only power switching for fast,
32-bit CardBus applications is supported in two ways:
low-resistance 3.3V switches allow high 3.3V load cur-
rents (up to 1A); and completely independent internal
charge pumps let the 3.3V switch operate normally,
even if the +5V and +12V supplies are disconnected or
turned off to conserve power. The internal charge
pumps are regulating types that draw reduced input
current when the VCC switches are static. Power con-
sumption is automatically reduced to 11µA max when
the outputs are high-Z or GND.
Other key features include guaranteed specifications
for output current limit level, and guaranteed specifi-
cations for output rise/fall times (in compliance with
PCMCIA specifications). Reliability is enhanced by
thermal-overload protection, accurate current limiting,
an overcurrent-fault flag output, and undervoltage lock-
outs. The CMOS/TTL-logic interface is flexible, and can
tolerate logic input levels in excess of the positive sup-
ply rail.
The MAX1602 fits a complete CardBus/PCMCIA switch
into a space-saving, 16-pin QSOP package.
____________________________Features
o Supports a Single PC Card/CardBus Socket
o 1A, 0.25Max 3.3V VCC Switch
1A, 0.25Max 5V VCC Switch
o Soft Switching for Low Inrush Surge Current
o Overcurrent Protection
o Overcurrent/Thermal-Fault Flag Output
o Thermal Shutdown at Tj = +150°C
o Independent Internal Charge Pumps
o Break-Before-Make Switching Action
o 11µA Max Standby Supply Current
o 5V and 12V Not Required for Low-RDS(ON)
3.3V Switching
o Complies with PCMCIA 3V/5V Switching
Specifications
o Super-Small 16-Pin QSOP Package
o Code Compatible with:
Cirrus CL-PD67XX Family
Databook DB86184
Intel 82365SL (industry-standard coding)
__________Simplified Block Diagram
________________________Applications
Data Loggers
Handy-Terminals
Docking Stations
PCMCIA Read/Write Drives
______________Ordering Information
PART
MAX1602EEE
TEMP. RANGE
-40°C to +85°C
PIN-PACKAGE
16 QSOP
Pin Configuration appears on last page.
12IN
VX
VY
VY
CONTROL
INPUTS
GND
MAX1602
VDD
DECODE
LOGIC
CODE
SELECT
OVERCURRENT
AND
THERMAL
SHUTDOWN
VPP
VCC
VCC
VCC
VCC
FAULT
CODE
________________________________________________________________ Maxim Integrated Products 1
For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800


Maxim Integrated Semiconductor Electronic Components Datasheet

MAX1602 Datasheet

Single-Channel CardBus and PCMCIA VCC/VPP Power-Switching Network

No Preview Available !

Single-Channel CardBus and PCMCIA VCC/VPP
Power-Switching Network
ABSOLUTE MAXIMUM RATINGS
Inputs/Outputs to GND
(VX, VY, VCC) (Note 1) ..........................................-0.3V, +6V
VPP Input/Output to GND
(12IN, VPP) (Note 1) ............................................-0.3V, +15V
Logic Inputs to GND (A0VCC, A1VCC,
A0VPP, A1VPP) (Note 1)........................................-0.3V, +6V
CODE Input to GND ........................................-0.3V, (VY + 0.3V)
VCC Output Current (Note 2)...................................................4A
VPP Output Current (Note 2).............................................260mA
VCC Short Circuit to GND ..........................................Continuous
VPP Short Circuit to GND ...........................................Continuous
Continuous Power Dissipation (TA = +70°C)
QSOP (derate 8.3mW/°C above +70°C) ....................667mW
Operating Temperature Range
MAX1602EEE .................................................-40°C to +85°C
Storage Temperature Range .............................-65°C to +160°C
Lead Temperature (soldering, 10sec) .............................+300°C
Note 1: There are no parasitic diodes between any of these pins, so there are no power-up sequencing restrictions (for example,
logic input signals can be applied even if all of the supply voltage inputs are grounded).
Note 2: VCC and VPP outputs are internally current limited. See the Electrical Characteristics.
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
ELECTRICAL CHARACTERISTICS
(VY = 3.3V, VX = 5V, 12IN = 12V, TA = 0°C to +85°C, unless otherwise noted. Typical values are at TA = +25°C.)
PARAMETER
POWER-SUPPLY SECTION
Input Voltage Range
Undervoltage Lockout Threshold
VX, VY
12IN
VY falling edge
12IN falling edge
12IN rising edge
VX falling edge
CONDITIONS
MIN TYP
3.0
11
2.4 2.6
1.8 3.0
5.0 8.0
1.4 1.9
VY Standby Supply Current
VX Standby Supply Current
12IN Standby Supply Current
VY Quiescent Supply Current
All switches 0V or high-Z,
control inputs = 0V or VY, TA = +25°C
VX all switches 0V or high-Z,
control inputs = 0V or VY, TA = +25°C
All switches 0V or high-Z,
control inputs = 0V or VY, TA = +25°C
Any combination of VY switches on,
control inputs = 0V or VY, no VCC loads
3
20
VX Quiescent Supply Current Control inputs = 0V or VY, no VCC loads
10
12IN Quiescent Supply Current
VPP 12V switches on,
control inputs = 0V or VY, no VPP loads
5
VCC SWITCHES
Operating Output Current Range VCC, VX = VY = 3V to 5.5V
0
On-Resistance, VY Switches
On-Resistance, VX Switches
Output Current Limit
12IN = 0V to 13V, VY = 3V, VX = 0V to 5.5V,
ISWITCH = 1A, TA = +25°C
12IN = 0V to 13V, VX = 4.5V, VY = 0V to 5.5V,
ISWITCH = 1A, TA = +25°C
VCC
0.09
0.09
1.2
MAX
5.5
13
2.8
10.0
2.8
11
1
1
200
50
100
1
0.25
0.25
4
UNITS
V
V
µA
µA
µA
µA
µA
µA
A
A
2 _______________________________________________________________________________________


Part Number MAX1602
Description Single-Channel CardBus and PCMCIA VCC/VPP Power-Switching Network
Maker Maxim
Total Page 12 Pages
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