Maxim MAX1600EAI, MAX1603EAI Datasheet
MAX1600/MAX1603
Dual-Channel CardBus and PCMCIA VCC/VPP
Power-Switching Networks
________________________________________________________________
Maxim Integrated Products
1
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19-4752; Rev 3; 5/98
PART
MAX1600EAI
MAX1603EAI
-40°C to +85°C
-40°C to +85°C
TEMP. RANGE PIN-PACKAGE
28 SSOP
28 SSOP
General Description
The MAX1600/MAX1603 DC power-switching ICs contain 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, softswitching 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: 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 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. 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 specifications 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 lockout. The CMOS/TTL-logic interface is flexible, and can
tolerate logic input levels in excess of the positive supply rail.
The MAX1600 and MAX1603 are identical, except for
the MAX1603’s VY switch on-resistance (typically
140mΩ). 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
Ordering Information
____________________________Features
♦ Supports Two PC Card/CardBus Sockets
♦ 1A, 0.08Ω Max 3.3V VCC Switch (MAX1600 only)
1A, 0.14Ω Max 5V VCC Switch
♦ Soft Switching for Low Inrush Surge Current
♦ Overcurrent Protection
♦ Overcurrent/Thermal-Fault Flag Output
♦ Thermal Shutdown at Tj= +150°C
♦ Independent Internal Charge Pumps
♦ Break-Before-Make Switching Action
♦ 10µA Max Standby Supply Current
♦ 5V and 12V Not Required for Low-R
DS(ON)
3.3V Switching
♦ Complies with PCMCIA 3V/5V Switching
Specifications
♦ Super-Small 28-Pin SSOP Package
(0.2in. or 5mm wide)
♦ Code Compatible with:
Cirrus CL-PD67XX Family
Databook DB86184
Intel 82365SL (industry-standard coding)
DECODE
LOGIC
VY
12IN
VY
VX
VX
OVERCURRENT
AND
THERMAL
SHUTDOWN
MAX1600/MAX1603
VDD
CODE
SELECT
GND
12IN
VY
VX
VL
VPPA
VCCA
VCCA
VCCA
FAULT
CODE
VPPB
VCCB
VCCB
VCCB
CONTROL
INPUTS
Simplified Block Diagram
Pin Configuration appears on last page.
MAX1600/MAX1603
Dual-Channel CardBus and PCMCIA VCC/VPP
Power-Switching Networks
2 _______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
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.)
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.
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 (T
A
= +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
2.4 2.5 2.8
V
11 13
Input Voltage Range
µA25 150VL Quiescent Supply Current
µA1Standby Supply Current
µA15 10012IN_ Quiescent Supply Current
µA4 10VL Standby Supply Current
UNITSMIN TYP MAXPARAMETER
VX or VY, all switches 0V or high-Z,
control inputs = 0V or VL, TA= +25°C
1 µA12IN_ Standby Supply Current
3.0 5.5
Ω
0.06 0.08
A0 1Operating Output Current Range
Ω0.10 0.14On-Resistance, VX Switches
µA20 100VY Quiescent Supply Current
µA20 100VX Quiescent Supply Current
V/µs0.05VL Fall Rate
1.8 3.0
V
1.4 2.5 2.8
Undervoltage Lockout Threshold
5.0 8.0 10.0
VL falling edge
When using VL as shutdown pin (Note 3)
VX, VY or VL
12INA, 12INB
Any combination of VY switches on,
control inputs = 0V or VL, no VCC loads
MAX1600
VCCA or VCCB, VX = VY = 3V to 5.5V
Any combination of switches on
12INA tied to 12INB, VPPA and VPPB 12V switches on,
control inputs = 0V or VL, no VPP loads
CONDITIONS
12IN falling edge
12INA tied to 12INB, all switches 0V or high-Z,
control inputs = 0V or VL, TA= +25°C
12INA = 12INB = 0V to 13V, VX = 4.5V, VY = 0V to 5.5V,
I
SWITCH
= 1A, TA= +25°C
Any combination of VX switches on,
control inputs = 0V or high-Z, no VCC loads
12IN rising edge
VX, VY falling edge
12INA = 12INB = 0V to 13V,
VY = 3V, VX = 0V to 5.5V,
I
SWITCH
= 1A, TA= +25°C
0.14 0.24
On-Resistance, VY Switches
MAX1603
All switches 0V or high-Z,
control inputs = 0V or VL, TA= +25°C
A1.2 4Output Current Limit VCCA or VCCB
POWER-SUPPLY SECTION
VCC SWITCHES
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
.
MAX1600/MAX1603
Dual-Channel CardBus and PCMCIA VCC/VPP
Power-Switching Networks
_______________________________________________________________________________________ 3
ELECTRICAL CHARACTERISTICS (continued)
(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.)
VCCA or VCCB, 0V to VX or VY, CL= 30µF,
RL= 25Ω, 50% of input to 90% of output, TA= +25°C
Hysteresis = 20°C (Note 4)
V
FAULT
= 5.5V, high state
I
SINK
= 1mA, low state
VPPA or VPPB forced to 0V, high-Z state, TA= +25°C
VCC_ or VPP_, load step to FAULT output,
50% point to 50% point (Note 3)
VPPA or VPPB < 0.4V, programmed to 0V state
VPPA or VPPB, programmed to 12V
VPPA or VPPB
12IN = 11.6V, I
SWITCH
= 100mA, TA= +25°C
Programmed to VX (5V) or VY (3.3V), TA= +25°C
VPPA or VPPB, 0V to 12IN_, CL= 0.1µF,
50% of input to 90% of output, T
A
= +25°C
CONDITIONS
°C150Thermal Shutdown Threshold
µA-0.5 0.5
FAULT Output Leakage Current
V0.4
FAULT Output Low Voltage
µs1
FAULT Signal Propagation Delay
ms1.2 30
Output Propagation Delay
Plus Rise Time
ms2 10
Output Propagation Delay
Plus Rise Time
µA10Output Leakage Current
mA10Output Sink Current
mA130 200 260Output Current Limit
mA0 120Operating Output Current Range
Ω0.70 1On-Resistance, 12V Switches
Ω1 3On-Resistance, VPP = VCC Switches
UNITSMIN TYP MAXPARAMETER
VCCA or VCCB, VX or VY to 0V, CL= 30µF,
RL= open circuit, 50% of input to 10% of output,
TA= +25°C
ms60 100
Output Propagation Delay
Plus Fall Time
VCCA or VCCB, VX or VY to 0V, CL= 1µF,
RL= 25Ω, 90% to 10% points
ms6Output Fall Time
“Databook” code
“Cirrus” code
“Intel” code
__VCC, __VPP
__VCC, __VPP
V1.2 VL - 1.2Code Input Mid-Level Voltage
VVL - 0.4 VLCode Input High Voltage
V0 0.4Code Input Low Voltage
V1.5Logic Input High Voltage
V0.6Logic Input Low Voltage
VPPA or VPPB, 0V to 12IN_, CL= 0.1µF,
10% to 90% points, TA= +25°C
µs100 800Output Rise Time
__VCC, __VPP, code µA-1 1Logic Input Bias Current
VCCA or VCCB, 0V to VX or VY, CL= 1µF,
RL= open circuit, 10% to 90% points, TA= +25°C
µs100 1200Output Rise Time
VPPA or VPPB, 12IN_ to 0V, CL= 0.1µF,
90% to 10% points
VPPA or VPPB, 12IN_ to 0V, CL= 0.1µF,
50% of input to 10% of output, TA= +25°C
ms1Output Fall Time
ms9 60
Output Propagation Delay
Plus Fall Time
VCCA or VCCB forced to 0V, high-Z state, TA= +25°C µA10Output Leakage Current
VCCA or VCCB < 0.4V, programmed to 0V state mA20Output Sink Current
VPP SWITCHES
INTERFACE AND LOGIC SECTION
MAX1600/MAX1603
Dual-Channel CardBus and PCMCIA VCC/VPP
Power-Switching Networks
4 _______________________________________________________________________________________
ELECTRICAL CHARACTERISTICS
(VL = VY = 3.3V, VX = 5V, 12INA = 12INB = 12V, TA= -40°C to +85°C, unless otherwise noted.)
VX or VY, all switches 0V or high-Z,
control inputs = 0V or VL, TA= T
MIN
to T
MAX
12INA tied to 12INB, all switches 0V or high-Z,
control inputs = 0V or VL
All switches 0V or high-Z, control inputs = 0V or VL
V
3.0 5.5
0.6
µA100VY Quiescent Supply Current
VL falling edge, hysteresis = 1%
Logic Input Low Voltage __VCC, __VPP
VX, VY or VL
15
12INA, 12INB
µA12IN_ Standby Supply Current
1.8
µA100
Any combination of VY switches on,
control inputs = 0V or VL, no VCC loads
VX Quiescent Supply Current
V
1.4 2.9
Undervoltage Lockout Threshold
5 10
Any combination of switches on
12INA tied to 12INB, VPPA and VPB 12V switches on,
control inputs = 0V or VL, no VPP loads
CONDITIONS
12IN falling edge
2.3 2.9
V
11 13
Any combination of VX switches on,
control inputs = 0V or high-Z, no VCC loads
12IN rising edge
Input Voltage Range
VX, VY falling edge
µA150VL Quiescent Supply Current
µA15Standby Supply Current
µA10012IN_ Quiescent Supply Current
µA15VL Standby Supply Current
UNITSMIN TYP MAXPARAMETER
V1.6Logic Input High Voltage __VCC, __VPP
__________________________________________Typical Operating Characteristics
(VL = VY = 3.3V, VX = 5V = 12IN, TA = +25°C, unless otherwise noted.)
CL = 30µF, RL = 25Ω
VCC_ SWITCHING (RISE)
6
4
2
0
5
0
200µs/div
VCC_
(V)
CONTROL
INPUT
(V)
MAX1600/3 TOC-01
CL = 1µF, RL = ∞
VCC_ SWITCHING (RISE)
3
2
1
0
5
0
500µs/div
VCC_
(V)
CONTROL
INPUT
(V)
MAX1600/3 TOC-02
V0.4
FAULT Output Low Voltage
I
SINK
= 1mA, low state
POWER-SUPPLY SECTION
Note 3: Not production tested.
Note 4: Thermal limit not active in standby state (all switches programmed to GND or high-Z state).
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