MAX8586ETA+T Maxim Integrated Products, MAX8586ETA+T Datasheet

IC SW USB 1.2A 8-TDFN

MAX8586ETA+T

Manufacturer Part Number
MAX8586ETA+T
Description
IC SW USB 1.2A 8-TDFN
Manufacturer
Maxim Integrated Products
Type
USB Switchr
Datasheet
1.MAX8586ETAT.pdf (13 pages)

Specifications of MAX8586ETA+T

Number Of Outputs
1
Rds (on)
55 mOhm
Internal Switch(s)
Yes
Current Limit
1.2A
Voltage - Input
2.75 ~ 5.5 V
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
8-TDFN Exposed Pad
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
The MAX8586 single current-limited switch controls up to
1.2A to power USB applications and has multiple protec-
tion features including thermal shutdown, internal current
limiting, and reverse current protection. The thermal shut-
down limits junction temperature during a prolonged
short or overload condition. The internal current-limiting
circuitry protects the input supply against overload and
is programmable using an external resistor. The
MAX8586 meets all IEC specifications for USB ports.
The IC latches off when the output experiences a short
circuit for more than 20ms, saving system power. Auto-
restart tests the shorted output with a 25mA current to
determine if the short still exists. Once the short is
removed, the MAX8586 automatically restarts the out-
put. An open-drain fault signal notifies the system that
the internal current limit has been reached. A 20ms
fault-blanking feature allows the circuit to ignore
momentary faults such as those caused when hot-
swapping into a capacitive load. An ENRESET input is
available to disable the auto-restart function.
The MAX8586 features a SEL input that programs ON
to be either active high or active low. The IC is supplied
in a space-saving, 8-pin, 3mm x 3mm TDFN package.
Pin Configuration appears at end of data sheet.
19-3449; Rev 2; 1/10
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxim's website at www.maxim-ic.com.
USB Ports/Hubs
Desktop/Notebook Computers
PDAs and Palmtop Computers
Docking Stations
________________________________________________________________ Maxim Integrated Products
General Description
Applications
Single 1.2A USB Switch in
o Reverse Current Protection
o Programmable Current Limit Up to 1.2A
o Accurate Current Limit
o Selectable Auto-Restart when Fault Is Removed
o Thermal-Overload Protection
o Selectable Active-High/Low ON Input
o Built-In 20ms Fault Blanking
o Compliant with All USB Specifications
o 2.75V to 5.5V Input Supply Range
o FAULT Indicator Output
o 15kV ESD Protection (with Caps)
o Tiny 8-Pin 3mm x 3mm TDFN Package
/V denotes an automotive qualified part.
+ Denotes a lead(Pb)-free/RoHS-compliant package.
MAX8586ETA
MAX8586ETA/V+
INPUT SUPPLY
2.75V TO 5.5V
INDICATOR
SELECTION
POLARITY
CONTROL
OUTPUT
ON/OFF
ON/OFF
FAULT
PART
3mm x 3mm TDFN
Typical Operating Circuit
-40°C to +85°C
-40°C to +85°C
TEMP RANGE
IN
FAULT
SEL
ON
Ordering Information
MAX8586
GND
ENRESET
ISET
OUT
3mm x 3mm
3mm x 3mm
PACKAGE
(T833-2)
(T833-2)
8 TDFN
8 TDFN
PIN-
Features
OUTPUT SUPPLY
AUTO-RESTART
UP TO 1.2A
ON/OFF
MARK
AMH
TOP
BLU
1

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MAX8586ETA+T Summary of contents

Page 1

... Desktop/Notebook Computers PDAs and Palmtop Computers Docking Stations Pin Configuration appears at end of data sheet. ________________________________________________________________ Maxim Integrated Products For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642, or visit Maxim's website at www.maxim-ic.com. Single 1.2A USB Switch in o Reverse Current Protection o Programmable Current Limit ...

Page 2

Single 1.2A USB Switch in 3mm x 3mm TDFN ABSOLUTE MAXIMUM RATINGS IN, ON, SEL, OUT, FAULT, ISET, ENRESET to GND ..-0. OUT.....................................................................-6V to +6V FAULT Sink Current ............................................................20mA Continuous Power Dissipation 8-Pin 3mm x 3mm ...

Page 3

ELECTRICAL CHARACTERISTICS (continued 5V SEL ENRESET Typical values are +25°C, unless otherwise specified.) (Note 1) A PARAMETER Turn-On Delay Output Rise Time Turn-Off Delay from ON ...

Page 4

Single 1.2A USB Switch in 3mm x 3mm TDFN (Typical Application Circuit QUIESCENT SUPPLY CURRENT vs. SUPPLY VOLTAGE SUPPLY VOLTAGE ...

Page 5

Application Circuit FAULT-BLANKING TIME vs. TEMPERATURE -40 - TEMPERATURE (°C) OVERLOAD RESPONSE INTO 2Ω FAULT ...

Page 6

Single 1.2A USB Switch in 3mm x 3mm TDFN (Typical Application Circuit SWITCH TURN-OFF WAVEFORM INTO 5Ω LOAD V OUT V ON 1ms/div STARTUP INTO 470µF FAULT V IN AC-COUPLED I OUT V ...

Page 7

PIN NAME ON Polarity Selector Input. Drive SEL high to select ON for an active-high enable. Drive SEL to GND to select 1 SEL ON for an active-low enable. Current-Limit Programming Input. Connect a resistor from ISET to GND to ...

Page 8

Single 1.2A USB Switch in 3mm x 3mm TDFN Detailed Description Current-Limit Protection The MAX8586 uses two methods to protect the circuit from overcurrent conditions. Continuous current limiting has tighter accuracy but slower response time com- pared to short-circuit limiting. ...

Page 9

Thermal Shutdown When the MAX8586 die temperature exceeds +160°C, the switch turns off and FAULT goes low. Thermal shut- down does not utilize the 20ms fault-blanking timeout period. When the junction temperature cools by 15°C, the switch turns on again ...

Page 10

Single 1.2A USB Switch in 3mm x 3mm TDFN INPUT SUPPLY 2.75V TO 5.5V OUTPUT FAULT INDICATOR ON/OFF POLARITY SELECTION CONTROL/ ON/OFF Figure 1. Typical Application Circuit Because the package power dissipation is 1951mW, the MAX8586 die temperature exceeds the ...

Page 11

For the latest package outline information and land patterns www.maxim-ic.com/packages. Note that a “+”, “#”, or “-” in the package code indicates RoHS status only. Package drawings may show a different suffix character, but the drawing pertains to ...

Page 12

Single 1.2A USB Switch in 3mm x 3mm TDFN For the latest package outline information and land patterns www.maxim-ic.com/packages. Note that a “+”, “#”, or “-” in the package code indicates RoHS status only. Package drawings may show ...

Page 13

... Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 ____________________ 13 © 2010 Maxim Integrated Products Single 1 ...

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