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MAX1600 Datasheet

Dual-Channel CardBus and PCMCIA VCC/VPP Power-Switching Networks

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19-4752; Rev 3; 5/98
Dual-Channel CardBus and PCMCIA VCC/VPP
Power-Switching Networks
General Description
The MAX1600/MAX1603 DC power-switching ICs con-
tain a network of low-resistance MOSFET switches that
deliver selectable VCC and VPP voltages to two
CardBus or PC Card host sockets. Key features include
ultra-low-resistance switches, small packaging, soft-
switching action, and compliance with PCMCIA specifi-
cations for 3V/5V switching. 3.3V-only power switching
for fast, 32-bit CardBus applications is supported in two
ways: stiff, low-resistance 3.3V switches allow high 3.3V
load currents (up to 1A); and completely independent
internal charge pumps let the 3.3V switch operate nor-
mally, even if the +5V and +12V supplies are discon-
nected or turned off to conserve power. The internal
charge pumps are regulating types that draw reduced
input current when the VCC switches are static. Also,
power consumption is automatically reduced to 10µA
max when the control logic inputs are programmed to
high-Z or GND states, unlike other solutions that may
require a separate shutdown-control input.
Other key features include guaranteed specifications
for output current limit level, and guaranteed specifica-
tions 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-
out. The CMOS/TTL-logic interface is flexible, and can
tolerate logic input levels in excess of the positive sup-
ply rail.
The MAX1600 and MAX1603 are identical, except for
the MAX1603’s VY switch on-resistance (typically
140m). The MAX1600/MAX1603 fit two complete
CardBus/ PCMCIA switches into a space-saving, narrow
(0.2in. or 5mm wide) SSOP package.
________________________Applications
Desktop Computers Data Loggers
Notebook Computers Docking Stations
Handy-Terminals
PCMCIA Read/Write Drives
PART
MAX1600EAI
MAX1603EAI
Ordering Information
TEMP. RANGE
-40°C to +85°C
-40°C to +85°C
PIN-PACKAGE
28 SSOP
28 SSOP
Pin Configuration appears on last page.
____________________________Features
o Supports Two PC Card/CardBus Sockets
o 1A, 0.08Max 3.3V VCC Switch (MAX1600 only)
1A, 0.14Max 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 10µA 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 28-Pin SSOP Package
(0.2in. or 5mm wide)
o Code Compatible with:
Cirrus CL-PD67XX Family
Databook DB86184
Intel 82365SL (industry-standard coding)
Simplified Block Diagram
12IN
VY
VY
VX
VX
VL
CONTROL
INPUTS
GND
12IN
MAX1600/MAX1603
VDD
DECODE
LOGIC
CODE
SELECT
OVERCURRENT
AND
THERMAL
SHUTDOWN
VY
VX
VPPA
VCCA
VCCA
VCCA
FAULT
CODE
VPPB
VCCB
VCCB
VCCB
________________________________________________________________ Maxim Integrated Products 1
For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800.
For small orders, phone 408-737-7600 ext. 3468.


Maxim Integrated Semiconductor Electronic Components Datasheet

MAX1600 Datasheet

Dual-Channel CardBus and PCMCIA VCC/VPP Power-Switching Networks

No Preview Available !

Dual-Channel CardBus and PCMCIA VCC/VPP
Power-Switching Networks
ABSOLUTE MAXIMUM RATINGS
Inputs/Outputs to GND
(VL, VX, VY, VCCA, VCCB) (Note 1)........................-0.3V, +6V
VPP Inputs/Outputs to GND
(12INA, 12INB, VPPA, VPPB) (Note 1) ..................-0.3V, +15V
Logic Inputs to GND (A0VCC, A1VCC, B0VCC, B1VCC,
A0VPP, A1VPP, B0VPP, B1VPP) (Note 1) ...............-0.3V, +6V
CODE Input to GND.........................................-0.3V, (VL + 0.3V)
VCCA, VCCB Output Current (Note 2).....................................4A
VPPA, VPPB Output Current (Note 2) ...............................250mA
VCCA, VCCB Short Circuit to GND ............................Continuous
VPPA, VPPB Short Circuit to GND..............................Continuous
Continuous Power Dissipation (TA = +70°C)
SSOP (derate 9.52mW/°C above +70°C) ....................762mW
Operating Temperature Range
MAX160_EAI/MAX1603EAI..............................-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
(VL = VY = 3.3V, VX = 5V, 12INA = 12INB = 12V, TA = 0°C to +85°C, unless otherwise noted. Typical values are at TA = +25°C.)
PARAMETER
CONDITIONS
MIN TYP MAX UNITS
POWER-SUPPLY SECTION
Input Voltage Range
VX, VY or VL
12INA, 12INB
VL falling edge
3.0 5.5
11 13
2.4 2.5 2.8
V
12IN falling edge
Undervoltage Lockout Threshold
12IN rising edge
1.8 3.0
V
5.0 8.0 10.0
VX, VY falling edge
1.4 2.5 2.8
Standby Supply Current
VX or VY, all switches 0V or high-Z,
control inputs = 0V or VL, TA = +25°C
1 µA
VY Quiescent Supply Current
Any combination of VY switches on,
control inputs = 0V or VL, no VCC loads
20 100 µA
VX Quiescent Supply Current
Any combination of VX switches on,
control inputs = 0V or high-Z, no VCC loads
20 100 µA
12IN_ Standby Supply Current
12INA tied to 12INB, all switches 0V or high-Z,
control inputs = 0V or VL, TA = +25°C
1 µA
12IN_ Quiescent Supply Current
12INA tied to 12INB, VPPA and VPPB 12V switches on,
control inputs = 0V or VL, no VPP loads
15 100 µA
VL Standby Supply Current
VL Quiescent Supply Current
All switches 0V or high-Z,
control inputs = 0V or VL, TA = +25°C
Any combination of switches on
4 10 µA
25 150 µA
VL Fall Rate
When using VL as shutdown pin (Note 3)
0.05 V/µs
VCC SWITCHES
Operating Output Current Range VCCA or VCCB, VX = VY = 3V to 5.5V
0 1A
On-Resistance, VY Switches
12INA = 12INB = 0V to 13V,
VY = 3V, VX = 0V to 5.5V,
ISWITCH = 1A, TA = +25°C
MAX1600
MAX1603
0.06 0.08
0.14 0.24
On-Resistance, VX Switches
12INA = 12INB = 0V to 13V, VX = 4.5V, VY = 0V to 5.5V,
ISWITCH = 1A, TA = +25°C
0.10 0.14
Output Current Limit
VCCA or VCCB
1.2 4 A
2 _______________________________________________________________________________________


Part Number MAX1600
Description Dual-Channel CardBus and PCMCIA VCC/VPP Power-Switching Networks
Maker Maxim
Total Page 12 Pages
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