MAX1601EAI+ Maxim Integrated, MAX1601EAI+ Datasheet

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MAX1601EAI+

Manufacturer Part Number
MAX1601EAI+
Description
Power Switch ICs - Power Distribution
Manufacturer
Maxim Integrated
Datasheet

Specifications of MAX1601EAI+

Rohs
yes
Number Of Outputs
2
Operating Supply Voltage
3 V to 5.5 V, 11 V to 13 V
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
Package / Case
SSOP-28
Minimum Operating Temperature
- 40 C
The MAX1601/MAX1604 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 switches are programmed to high-Z or
GND states over the serial interface, unlike other solu-
tions 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-over-
load protection, accurate current limiting, an overcur-
rent-fault flag output, undervoltage lockout, and extra
ESD protection at the VCC/VPP outputs. The SMBus ser-
ial interface is flexible, and can tolerate logic input levels
in excess of the positive supply rail.
The MAX1604 and MAX1601 are identical, except
for the MAX1604’s VY switch, which has roughly three-
times the on-resistance (typically 140m Ω).The
MAX1601/MAX1604 fit two complete CardBus/PCMCIA
switches into a space-saving, narrow (0.2in. or 5mm
wide) SSOP package.
________________________Applications
19-1085; Rev 1; 10/96
________________General Description
Pin Configuration appears on last page.
SMBus is a trademark of Intel Corp.
For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800
Desktop Computers
Notebook Computers
Docking Stations
Handy-Terminals
Power Switches with SMBus™ Serial Interface
________________________________________________________________ Maxim Integrated Products
Data Loggers
Digital Cameras
Printers
PCMCIA Read/Write Drives
Dual-Channel CardBus and PCMCIA
____________________________Features
_______________Ordering Information
__________Simplified Block Diagram
MAX1601EAI
MAX1604EAI
Supports Two CardBus Sockets
1A, 0.08Ω Max VY VCC Switch (MAX1601 only)
1A, 0.14Ω Max VX VCC Switch
Soft Switching for Low Inrush Surge Current
Overcurrent Protection
Overcurrent/Thermal-Fault Flag Output
Thermal Shutdown at T
Independent Internal Charge Pumps
Break-Before-Make Switching Action
10µA Max Standby Supply Current
5V and 12V Not Required for Low-R
Switching
Complies with PCMCIA 3V/5V Switching
Specifications
Super-Small, 28-Pin SSOP Package
(0.2in. or 5mm wide)
System Management Bus (SMBus) Serial
Interface
SMBDATA
SMBSUS
PART
SMBCLK
12IN
12IN
GND
VY
VY
VX
VX
VL
VY
VX
ADDRESS
DECODE
SELECT
LOGIC
TEMP. RANGE
-40°C to +85°C
-40°C to +85°C
VDD
MAX1601/MAX1604
j
= +150°C
OVERCURRENT
SHUTDOWN
THERMAL
AND
28 SSOP
28 SSOP
PIN-PACKAGE
DS(ON)
VPPA
VCCA
VCCA
VCCA
SMBALERT
ADR
VPPB
VCCB
VCCB
VCCB
3.3V
1

Related parts for MAX1601EAI+

MAX1601EAI+ Summary of contents

Page 1

... Handy-Terminals PCMCIA Read/Write Drives Pin Configuration appears on last page. SMBus is a trademark of Intel Corp. ________________________________________________________________ Maxim Integrated Products For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800 ____________________________Features Supports Two CardBus Sockets 1A, 0.08Ω Max VY VCC Switch (MAX1601 only) 1A, 0.14Ω ...

Page 2

... Dual-Channel CardBus and PCMCIA Power Switches with SMBus™ Serial Interface 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 Inputs and Outputs to GND (SMBCLK, SMBDATA, SMBSUS, SMBALERT) (Note 1) ..............................-0.3V, +6V ADR Input to GND ...........................................-0.3V, (VL + 0.3V) VCCA, VCCB Output Current (Note 2) ...

Page 3

... Dual-Channel CardBus and PCMCIA Power Switches with SMBus™ Serial Interface ELECTRICAL CHARACTERISTICS (continued) ( 3.3V 5V, 12INA = 12INB = 12V, T PARAMETER Output Current Limit Output Sink Current Output Leakage Current Output Propagation Delay Plus Rise Time Output Rise Time Output Propagation Delay ...

Page 4

... Dual-Channel CardBus and PCMCIA Power Switches with SMBus™ Serial Interface ELECTRICAL CHARACTERISTICS (continued) ( 3.3V 5V, 12INA = 12INB = 12V, T PARAMETER SMB Input Capacitance SMBCLK Clock Frequency SMBCLK Clock Low Time SMBCLK Clock High Time SMB Repeated Start-Condition Setup Time SMB Start-Condition Hold Time ...

Page 5

... Dual-Channel CardBus and PCMCIA Power Switches with SMBus™ Serial Interface ELECTRICAL CHARACTERISTICS ( 3.3V 5V, 12INA = 12INB = 12V, T PARAMETER POWER-SUPPLY SECTION VX Input Voltage Range 12INA, 12INB VL falling edge, hysteresis = 1% 12IN falling edge Undervoltage Lockout Threshold 12IN rising edge VX, VY falling edge ...

Page 6

... Dual-Channel CardBus and PCMCIA Power Switches with SMBus™ Serial Interface __________________________________________Typical Operating Characteristics ( 3.3V 5V, 12IN +25°C, unless otherwise noted.) A VCC_ SWITCHING (RISE VCC_ ( CONTROL INPUT 0 (V) 200 s/div VCC_ SWITCHING (FALL VCC_ ...

Page 7

... Dual-Channel CardBus and PCMCIA Power Switches with SMBus™ Serial Interface _____________________________Typical Operating Characteristics (continued) ( 3.3V 5V, 12IN +25°C, unless otherwise noted.) A VCC_ CURRENT LIMITING 4 2 VCC_ (V) 0 2ms/div RESISTIVE OVERLOAD VPP_ CURRENT LIMITING 10 VPP_ 5 (V) 0 2ms/div ...

Page 8

... Dual-Channel CardBus and PCMCIA Power Switches with SMBus™ Serial Interface _____________________________Typical Operating Characteristics (continued) ( 3.3V 5V, 12IN +25°C, unless otherwise noted ON-RESISTANCE vs. VCC_ LOAD CURRENT 110 105 T = +85°C A 100 +25° -40° ...

Page 9

... Dual-Channel CardBus and PCMCIA Power Switches with SMBus™ Serial Interface ______________________________________________________________Pin Description PIN NAME 1, 25 GND Ground 2, 3, N.C. No internal connection 26 12INA +12V Supply Voltage Input, internally connects to channel A VPP switch. Tie to VPPA if not used. 5 VPPA Channel A VPP Output VX Supply-Voltage Inputs. VX pins must be connected together. Input range 5.5V ...

Page 10

... Dual-Channel CardBus and PCMCIA Power Switches with SMBus™ Serial Interface 12IN SMBCLK SMBDATA SMB SMBSUS ADR Figure 1. Functional Diagram (one channel of two) 10 ______________________________________________________________________________________ VB12 CHARGE PUMP 3 CURRENT LIMIT VB3 * 0.08 CHARGE CURRENT PUMP LIMIT VB5 0.14 CHARGE CURRENT PUMP LIMIT ...

Page 11

... Dual-Channel CardBus and PCMCIA Power Switches with SMBus™ Serial Interface _______________Detailed Description The MAX1601/MAX1604 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. The MAX1601/MAX1604 differ only in the VY switch on-resistance. Figure 1 is the detailed block diagram ...

Page 12

... Dual-Channel CardBus and PCMCIA Power Switches with SMBus™ Serial Interface ______SMBus™ Interface Operation The SMBus serial interface is a two-wire interface with multi-mastering capability, intended to control low- speed peripheral devices in low-power portable equip- ment applications. SMBus is similar to I AccessBus, but has slightly different logic threshold voltage levels, different fixed addresses, and a sus- pend-mode register capability ...

Page 13

... ADD7 0 6 ADD6 0 5 ADD5 0 4 ADD4 0 3 ADD3 0 2 ADD2 0 1 ADD1 0 0 (LSB) ADD0 0 Table 5. Read Format for Power Switch Address (1010000 or 1010010) BIT NAME POR STATE 7 (MSB) CATFAULT 0 6 FAULT1 0 5 FAULT2 0 4 FAULT3 0 3 FAULT4 0 2 SIG/DUAL 0 1 ...

Page 14

... It can come back later to interrogate the IC via the interrupt pointer to determine status or perform corrective action (such as disabling the appropriate power switch that might be connected to a shorted PC card). The fas test method for turning off the switches in response to a ...

Page 15

... Dual-Channel CardBus and PCMCIA Power Switches with SMBus™ Serial Interface HIGH LOW SMBCLK SMBDATA t t SU:STA HD:STA A = START CONDITION B = MSB OF ADDRESS CLOCKED INTO SLAVE C = LSB OF ADDRESS CLOCKED INTO SLAVE D = R/W BIT CLOCKED INTO SLAVE Figure 4. SMBus Read Timing Diagram ...

Page 16

... Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 (408) 737-7600 16 __________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 (408) 737-7600 16 __________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 (408) 737-7600 16 __________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 (408) 737-7600 © ...

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