EVALUATION KIT AVAILABLE
MAX8586
Single 1.2A USB Switch in
3mm x 3mm TDFN
General Description
The MAX8586 single current-limited switch controls up to
1.2A to power USB applications and has multiple protection features including thermal shutdown, internal current
limiting, and reverse current protection. The thermal shutdown 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. Autorestart 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 output. 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 hotswapping 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.
Features
♦ Reverse Current Protection
♦ Programmable Current Limit Up to 1.2A
♦ Accurate Current Limit
♦ Selectable Auto-Restart when Fault Is Removed
♦ Thermal-Overload Protection
♦ Selectable Active-High/Low ON Input
♦ Built-In 20ms Fault Blanking
♦ Compliant with All USB Specifications
♦ 2.75V to 5.5V Input Supply Range
♦ FAULT Indicator Output
♦ 15kV ESD Protection (with Caps)
♦ Tiny 8-Pin 3mm x 3mm TDFN Package
Applications
USB Ports/Hubs
Desktop/Notebook Computers
PDAs and Palmtop Computers
Docking Stations
Ordering Information
TEMP RANGE
PINPACKAGE
-40°C to +85°C
8 TDFN
3mm x 3mm
(T833-2)
MAX8586ETA+
-40°C to +85°C
8 TDFN
3mm x 3mm
(T833-2)
AMH
MAX8586ETA+T
-40°C to +85°C
8 TDFN
3mm x 3mm
(T833-2)
AMH
-40°C to +85°C
8 TDFN
3mm x 3mm
(T833-2)
BLU
PART
MAX8586ETA
MAX8586ETA/V+
Typical Operating Circuit
TOP
MARK
AMH
INPUT SUPPLY
2.75V TO 5.5V
OUTPUT
FAULT
INDICATOR
ON/OFF
POLARITY
SELECTION
ON/OFF
CONTROL
IN
OUT
OUTPUT SUPPLY
UP TO 1.2A
MAX8586
ENRESET
FAULT
AUTO-RESTART
ON/OFF
SEL
ISET
ON
GND
/V denotes an automotive qualified part.
+Denotes a lead(Pb)-free/RoHS-compliant package.
T = Tape and reel.
Pin Configuration appears at end of data sheet.
For pricing, delivery, and ordering information, please contact Maxim Direct at
1-888-629-4642, or visit Maxim Integrated’s website at www.maximintegrated.com.
19-3449; Rev 3; 1/13
MAX8586
Single 1.2A USB Switch in
3mm x 3mm TDFN
ABSOLUTE MAXIMUM RATINGS
IN, ON, SEL, OUT, FAULT, ISET, ENRESET to GND ..-0.3V to +6V
IN to OUT.....................................................................-6V to +6V
FAULT Sink Current ............................................................20mA
Continuous Power Dissipation
8-Pin 3mm x 3mm TDFN
(derate 24mW/°C above +70°C) ................................1951mW
Operating Temperature Range ...........................-40°C to +85°C
Junction Temperature ......................................................+150°C
Storage Temperature Range .............................-65°C to +150°C
Soldering Temperature (reflow) .......................................+260°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.
ELECTRICAL CHARACTERISTICS
(VIN = VON = VSEL = VENRESET = 5V, RISET = 26kΩ to GND, R FAULT = 100kΩ pullup to VIN, COUT = 0.1µF, TA = -40°C to +85°C.
Typical values are at TA = +25°C, unless otherwise specified.) (Note 1)
PARAMETER
CONDITIONS
Supply Voltage Range
Switch On-Resistance
MIN
TYP
2.75
VIN = 5V
55
VIN = 3V
65
VIN = 4.4V
MAX
UNITS
5.50
V
mΩ
95
IN Standby Supply Current
VON = 0V
3
6
µA
IN Quiescent Supply Current
IOUT = 0A
30
55
µA
TA = +25°C
0.02
1
TA = +85°C
0.6
OUT Off-Leakage Current
Undervoltage-Lockout Threshold
Current-Limit Threshold
Peak Short-Circuit Current Limit
RMS Short-Circuit Current Limit
VON = 0V, VOUT = 0V
Rising edge, 3% hysteresis (typ)
2.3
2.5
2.7
RISET = 26kΩ
1.2
1.4
1.6
RISET = 39kΩ
0.800
0.925
1.050
RISET = 60kΩ
0.5
0.6
0.7
1.35
1.75
2.20
VOUT = 0V,
(IOUT pulsing)
VOUT = 0V,
(IOUT pulsing)
RISET = 26kΩ
RISET = 39kΩ
1.2
RISET = 60kΩ
0.74
RISET = 26kΩ
0.55
RISET = 39kΩ
0.37
RISET = 60kΩ
0.23
Short-Circuit/Continuous Current Limit
Transition Threshold
(Note 2)
Fault-Blanking Timeout Period
From current-limit condition to FAULT falling
2
20
V
A
A (Peak)
A (RMS)
1
8
µA
V
40
ms
Maxim Integrated
MAX8586
Single 1.2A USB Switch in
3mm x 3mm TDFN
ELECTRICAL CHARACTERISTICS (continued)
(VIN = VON = VSEL = VENRESET = 5V, RISET = 26kΩ to GND, R FAULT = 100kΩ pullup to VIN, COUT = 0.1µF, TA = -40°C to +85°C.
Typical values are at TA = +25°C, unless otherwise specified.) (Note 1)
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
Turn-On Delay
ROUT = 10Ω, COUT = 1µF, measured from
ON rising to 10% of VOUT, does not include
rise time
0.5
1.5
4.0
ms
Output Rise Time
ROUT = 10Ω, COUT = 1µF, measured from
10% to 90% of VOUT
5.5
Turn-Off Delay from ON
ROUT = 10Ω, COUT = 1µF measured from
ON falling to 90% of VOUT
100
Output Fall Time
ROUT = 10Ω, COUT = 1µF, measured from
90% to 10% of VOUT
4
ms
Thermal-Shutdown Threshold
15°C hysteresis (typ)
+160
°C
ON, SEL, ENRESET Logic Input High Voltage
ON, SEL, ENRESET Logic Input Low Voltage
VIN = 2.75V to 4.0V
1.6
VIN = 4.0V to 5.5V
2.0
ms
1000
V
VIN = 2.75V to 4.0V
0.6
VIN = 4.0V to 5.5V
0.8
Logic Input Current
TA = +25°C
FAULT Output Low Voltage
ISINK = 1mA
FAULT Output High Leakage Current
VIN = 5.5V, TA = +25°C
ISET Current-Limit Trip Point
RISET = 26kΩ
ISET External Resistance Range
µs
-1
+1
µA
0.4
V
1
600
26
V
µA
mV
60
kΩ
Auto-Restart Current
In latched-off state, VOUT = 0V
10
25
60
mA
Auto-Restart Threshold
In latched-off state, VOUT rising
0.4
0.5
0.6
V
Auto-Restart Delay
In latched-off state, VOUT>1V
8
20
40
ms
Note 1: All devices are 100% production tested at TA = +25°C. Limits over the operating temperature range are guaranteed by
design.
Note 2: The output voltage at which the device transitions from short-circuit current limit to continuous current limit.
Maxim Integrated
3
MAX8586
Single 1.2A USB Switch in
3mm x 3mm TDFN
Typical Operating Characteristics
(Typical Application Circuit, VIN = VON = VSEL = VENRESET = 5V, TA = +25°C, unless otherwise noted.)
20
15
10
6
5
4
3
0.35
0.30
0.25
0.20
0.15
0.10
5
1
0.05
0
0
1
2
3
4
5
6
0
0
1
2
3
4
5
-40
6
35
60
TEMPERATURE (°C)
NORMALIZED ON-RESISTANCE
vs. TEMPERATURE
CONTINUOUS CURRENT LIMIT
vs. TEMPERATURE
CURRENT LIMIT
vs. TEMPERATURE
1.56
1.48
1.46
CURRENT LIMIT (A)
CURRENT LIMIT (A)
1.54
1.52
1.50
1.48
1.46
VENRESET = 0V
1.42
0.50
10
35
60
85
1.42
1.40
1.38
1.36
VENRESET = 5V
1.32
1.30
1.40
-15
1.44
1.34
1.44
-40
-15
10
35
60
-40
85
-15
10
35
60
TEMPERATURE (°C)
TEMPERATURE (°C)
TEMPERATURE (°C)
CURRENT LIMIT
vs. INPUT VOLTAGE
SWITCH ON-TIME
vs. TEMPERATURE
SWITCH OFF-TIME
vs. TEMPERATURE
1.8
8.5
RLOAD = 5Ω
8.0
7.5
ON-TIME (ms)
1.7
1.6
1.5
1.4
6.5
6.0
1.3
5.5
1.2
5.0
VENRESET = 5V
1.1
NO LOAD
7.0
1.0
4.1
INPUT VOLTAGE (V)
4.8
5.5
8
RLOAD = 5Ω
85
7
6
5
4
3
MEASURED FROM ON LOW UNTIL
VOUT FALLS TO 10% OF THE INPUT
1
0
4.0
3.4
9
2
MEASURED FROM ON HIGH UNTIL
VOUT REACHES 90% OF THE INPUT
4.5
10
OUTPUT FALL TIME (ms)
1.9
MAX8586 toc08
9.0
MAX8586 toc07
2.0
85
MAX8586 toc06
1.58
0.75
1.50
MAX8586 toc05
1.60
MAX8586 toc04
1.00
2.7
10
SUPPLY VOLTAGE (V)
1.25
-40
-15
SUPPLY VOLTAGE (V)
1.50
NORMALIZED RON
7
2
0
CURRENT LIMIT (A)
0.40
MAX8586 toc09
25
VON = 0V
0.45
LEAKAGE CURRENT (μA)
8
SUPPLY CURRRENT (μA)
30
VON = 0V
9
0.50
MAX8586 toc02
35
SUPPLY CURRENT (μA)
10
MAX8586 toc01
40
4
SWITCH LEAKAGE CURRENT
vs. TEMPERATURE
SHUTDOWN SUPPLY CURRENT
vs. SUPPLY VOLTAGE
MAX8586 toc03
QUIESCENT SUPPLY CURRENT
vs. SUPPLY VOLTAGE
-40
-15
10
35
TEMPERATURE (°C)
60
85
-40
-15
10
35
60
85
TEMPERATURE (°C)
Maxim Integrated
MAX8586
Single 1.2A USB Switch in
3mm x 3mm TDFN
Typical Operating Characteristics (continued)
(Typical Application Circuit, VIN = VON = VSEL = VENRESET = 5V, TA = +25°C, unless otherwise noted.)
29
27
25
23
21
19
27
26
25
24
23
22
17
21
15
20
-40
-15
10
35
60
85
40
MAX8586 toc12
31
28
MAX8586 toc11
FAULT-BLAMKING TIME (ms)
33
AUTO-RESTART CURRENT (mA)
MAX8586 toc10
35
AUTO-RESTART CURRENT
vs. INPUT VOLTAGE
AUTO-RESTART CURRENT
vs. TEMPERATURE
AUTO-RESTART CURRENT (mA)
FAULT-BLANKING TIME
vs. TEMPERATURE
35
30
25
20
15
RLOAD = 0.5Ω
10
-40
TEMPERATURE (°C)
-15
10
35
60
85
2.7
3.4
4.1
4.8
OVERLOAD RESPONSE INTO SHORT CIRCUIT
OVERLOAD RESPONSE INTO 2Ω
MAX8586 toc14
MAX8586 toc13
FAULT
5V/div
FAULT
5V/div
IIN
2A/div
IIN
2A/div
2A/div
IOUT
IOUT
2A/div
FAULT REMOVED
FAULT REMOVED
VOUT
5V/div
VOUT
5V/div
10ms/div
10ms/div
SWITCH TURN-ON WAVEFORM INTO NO LOAD
SWITCH TURN-ON WAVEFORM INTO 5Ω LOAD
MAX8586 toc16
MAX8586 toc15
2V/div
2V/div
VOUT
VOUT
2V/div
2V/div
VON
VON
1ms/div
Maxim Integrated
5.5
INPUT VOLTAGE (V)
TEMPERATURE (°C)
1ms/div
5
MAX8586
Single 1.2A USB Switch in
3mm x 3mm TDFN
Typical Operating Characteristics (continued)
(Typical Application Circuit, VIN = VON = VSEL = VENRESET = 5V, TA = +25°C, unless otherwise noted.)
SWITCH TURN-OFF WAVEFORM INTO 5Ω LOAD
STARTUP INTO 10μF
MAX8586 toc17
MAX8586 toc18
2V/div
VOUT
VON
2V/div
5V/div
FAULT
VIN
AC-COUPLED
50mV/div
IOUT
20mA/div
VOUT
2A/div
1ms/div
2ms/div
STARTUP INTO 470μF
UVLO RESPONSE WITH 50Ω LOAD
MAX8586 toc19
MAX8586 toc20
5V/div
FAULT
FAULT
5V/div
VIN
VIN
AC-COUPLED
50mV/div
2V/div
VOUT
IOUT
500mA/div
2V/div
2V/div
VOUT
2ms/div
6
4ms/div
Maxim Integrated
MAX8586
Single 1.2A USB Switch in
3mm x 3mm TDFN
Pin Description
PIN
NAME
FUNCTION
1
SEL
ON Polarity Selector Input. Drive SEL high to select ON for an active-high enable. Drive SEL to GND to select
ON for an active-low enable.
2
ISET
Current-Limit Programming Input. Connect a resistor from ISET to GND to set the internal current limit. The
valid range for RISET is 26kΩ to 60kΩ.
3
ON
Enable Input. Drive ON high to enable the device when SEL is high. Drive ON low to enable the device when
SEL is low.
4
IN
Power-Supply Input. Connect to an input power supply in the 2.75V to 5.5V range. Bypass IN to GND with a
1µF or greater ceramic capacitor.
5
OUT
6
FAULT
7
GND
8
ENRESET
—
EP
Power Output. Bypass OUT to GND with a 1µF or greater capacitor. OUT is high impedance during
shutdown.
Open-Drain Fault-Indicator Output. FAULT is low when the input is below UVLO, or during current limit,
reverse current detection, or thermal shutdown.
Ground. Connect GND to the exposed paddle and to a ground plane.
Auto-Restart Enable Input. Drive ENRESET high to enable auto-restart mode. Drive ENRESET low to disable
auto-restart mode.
Exposed Pad. Connect the exposed pad to a large ground plane to improve thermal power dissipation.
Functional Diagram
IN
OUT
OSCILLATOR
UVLO
20ms
TIMER
SEL
CHARGE
PUMP
CURRENTLIMIT
CIRCUITRY
CONTROL
LOGIC
ON
ISET
+
25mA
THERMALSHUTDOWN
CIRCUITRY
GND
O.5V
AUTORESTART
CIRCUITRY
ENRESET
FAULT
MAX8586
Maxim Integrated
N
7
MAX8586
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 compared to short-circuit limiting. Combining both methods
provides a high degree of protection for a variety of
faults. When a current-limit fault occurs with V OUT
greater than 1V, the device operates in continuous current-limit mode and limits output current to a user-programmable level. When V OUT is less than 1V, the
device operates in short-circuit current-limit mode and
pulses the output current to levels that are 30% (typ)
higher than the selected continuous current limit.
When either fault condition persists for 20ms (typ), the
fault flag is asserted. With the auto-restart enabled
(ENRESET high) the output also latches off and is tested with a 25mA current to detect when the fault condition has been removed. 20ms after the fault condition is
removed, the output automatically restarts. With the
auto-restart disabled (ENRESET low), the output continues to source the current-limit current as long as the
fault is present.
Reverse Current Protection
The USB specification does not allow an output device
to source current back into the USB port. However, the
MAX8586 is designed to safely power noncompliant
devices. During normal operation with the channel
enabled, if the current from the output to the input
exceeds 1A (typ) for more than 20ms (typ), the IC turns
off the switch and the FAULT flag is asserted. When the
IC is disabled, the output is switched to a high-impedance state, blocking reverse current flow from the output back to the input.
On/Off Control and UVLO
The MAX8586 has a selectable active-high/low ON
polarity. Drive SEL high to select an active-high for ON;
drive SEL low to select active-low for ON. The
MAX8586 includes a UVLO circuit to prevent erroneous
switch operation when the input voltage goes low during startup and brownout conditions. Input voltages of
less than +2.5V (typ) inhibit operation of the device.
FAULT asserts low during a UVLO condition.
Output Fault Protection and Auto-Restart
The MAX8586 uses an auto-restart function to detect
short-circuit removal by sourcing 25mA from the output
and monitoring the output voltage. When the voltage at
8
the output exceeds 0.5V for 20ms, the fault flag releases,
the output turns back on, and the 25mA current source
turns off. Active loads are not expected to draw measurable current when supplied with less than 0.5V. The autorestart function is enabled when ENRESET is high. Drive
ENRESET low to disable the auto-restart function. When
the auto-restart function is disabled, OUT regulates the
current to the programmed current limit.
Fault Indicator and Fault Blanking
The MAX8586 provides an open-drain output (FAULT)
to signal fault conditions. Connect FAULT to IN through
a 100kΩ pullup resistor for most applications. FAULT
asserts low when any of the following conditions occur:
•
•
•
•
The input voltage is below the UVLO threshold.
The switch junction temperature exceeds the
+160°C thermal-shutdown temperature limit.
The switch is in current-limit or short-circuit currentlimit mode for longer than the fault-blanking period
(20ms typ).
The reverse current exceeds the 1A threshold for
longer than the fault-blanking period (20ms typ).
When auto-restart is enabled, the FAULT output goes
high impedance after a 20ms delay once the fault condition is removed. With auto-restart disabled, during the
fault the output is tested every 20ms. When the fault is
removed, the FAULT output goes high impedance after
a delay that can be up to 20ms. Ensure that the
MAX8586 input bypass capacitance prevents glitches
from triggering the FAULT output. To distinguish large
capacitive loads from short circuits or sustained overloads, the MAX8586 has a fault-blanking circuit. When
a load transient causes the output to enter current limit,
an internal counter monitors the duration of the fault.
For load faults exceeding the 20ms fault-blanking time,
the switch turns off, FAULT asserts low, and the output
enters auto-restart mode (see the Current-Limit
Protection and Output Fault Protection and Auto-Restart
sections). Only current-limit and short-circuit faults are
blanked. Thermal-overload faults and input voltages
below the UVLO threshold immediately turn the output
off and assert FAULT low.
Fault blanking allows the MAX8586 to handle USB
loads that might not be fully compliant with USB specifications. The MAX8586 successfully powers USB loads
with additional bypass capacitance and/or large startup currents while protecting the upstream power
source. No fault is reported if the switch brings up the
load within the 20ms blanking period.
Maxim Integrated
MAX8586
Single 1.2A USB Switch in
3mm x 3mm TDFN
Thermal Shutdown
When the MAX8586 die temperature exceeds +160°C,
the switch turns off and FAULT goes low. Thermal shutdown does not utilize the 20ms fault-blanking timeout
period. When the junction temperature cools by 15°C,
the switch turns on again and FAULT returns high.
When an overload condition persists, the switch cycles
on and off, resulting in a pulsed output that reduces the
average system load.
Applications Information
Setting the Current Limit
A resistor from ISET to ground programs the currentlimit value. Use a resistor between 26kΩ and 60kΩ to
set the current limit according to the formula:
ILIM(TYPICAL) = 36400 / RISET (Amps)
Do not use RISET values below 26kΩ because the maximum current rating of the device may be exceeded.
RISET values larger than 60kΩ are not recommended
and do not provide a lower limit current than 500mA. If
the output drops below 1V (typ), the MAX8586 shifts to a
short-circuit current-limit threshold that is 30% above the
programmed level given by the ILIM(TYPICAL) formula.
Input Power Supply and Capacitance
To limit the input voltage drop during momentary output
load transients, connect a capacitor from IN to ground.
A 1µF ceramic capacitor is required for local decoupling; however, higher capacitor values further reduce
the voltage drop at the input. When driving inductive
loads, a larger capacitance may be needed to prevent
voltage spikes from exceeding the MAX8586’s absolute
maximum ratings.
Output Capacitance
A capacitor as large as 500µF is allowed on the output
to smooth out transients and/or increase rise/fall times.
Larger output capacitance may be used, but the resulting output charge time during startup may exceed the
fault-blanking period resulting in a FAULT flag.
Driving Inductive Loads
A wide variety of devices (mice, keyboards, cameras,
and printers) typically connect to the USB port with
cables, adding an inductive component to the load. This
inductance causes the output voltage at the USB port to
oscillate during a load step. The MAX8586 drives inductive loads; however, care must be taken to avoid
exceeding the device’s absolute maximum ratings.
Usually, the load inductance is relatively small, and the
MAX8586’s input includes a substantial bulk capacitance from an upstream regulator as well as local
Maxim Integrated
bypass capacitors, limiting overshoot. If severe ringing
occurs because of large load inductance, clamp the
MAX8586 output below +6V and above -0.3V.
Turn-On and Turn-Off Behavior
The MAX8586 features a slow turn-on and turn-off, minimizing loading transients on the upstream power
source. SEL sets the active polarity of the logic inputs of
the MAX8586. Drive ON to the same logic state as SEL
to enable the output. Drive ON to the opposite logic
state as SEL to disable the output (see Table 1). The
output enters a high-impedance state when disabled.
Table 1. SEL/ON Inputs
SEL
ON
High
High
OUT STATE
Enabled
High
Low
Disabled
Low
High
Disabled
Low
Low
Enabled
Layout and Thermal Dissipation
Keep all input/output traces as short as possible to
reduce the effect of undesirable parasitic inductance
and optimize the switch response time to output shortcircuit conditions. Place input and output capacitors no
more than 5mm from device leads. Connect IN and OUT
to the power bus with short traces. Wide power bus
planes at IN and OUT provide superior heat dissipation
as well. An active switch dissipates little power with minimal change in package temperature. Calculate the
power dissipation for this condition as follows:
P = IOUT2 x RON
At the normal operating current (IOUT = 0.5A) and the
maximum on-resistance of the switch (95mΩ), the
power dissipation is:
P = (0.5A)2 x 0.95Ω = 24mW
The worst-case power dissipation occurs when the output current is just below the current-limit threshold with
an output voltage greater than 1V. In this case, the
power dissipated in the switch is the voltage drop
across the switch multiplied by the current limit:
P = ILIM x (VIN - VOUT)
For a 5.5V input and 1V output, the maximum power
dissipation is:
P = 1.6A x (5.5V - 1V) = 7.2W
9
MAX8586
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
IN
R1
100kΩ
C1
1μF
OUTPUT SUPPLY
UP TO 1.2A
OUT
C2
1μF
MAX8586
AUTO-RESTART
ON/OFF
ENRESET
FAULT
SEL
ISET
ON
R2
26kΩ
GND
Figure 1. Typical Application Circuit
Because the package power dissipation is 1951mW, the
MAX8586 die temperature exceeds the +160°C thermalshutdown threshold when dissipating 7.2W, and the
switch output shuts down until the junction temperature
cools by 15°C. The duty cycle and period are strong
functions of the ambient temperature and the PC board
layout (see the Thermal Shutdown section).
If the output current exceeds the current-limit threshold,
or the output voltage is pulled below the short-circuit
detect threshold, the MAX8586 enters a fault state after
20ms, at which point auto-restart mode is enabled and
25mA is sourced by the output to test for removal of the
overload. For a 5V input, OUT short circuited to GND,
and auto-restart mode active, the power dissipation is
as follows:
P = 0.025A x 5V = 0.125W
Pin Configuration
TOP VIEW
SEL
1
8
ENRESET
ISET
2
7
GND
ON
3
6
FAULT
IN
4
5
OUT
MAX8586
TDFN
Chip Information
TRANSISTOR COUNT: 2117
PROCESS: BiCMOS
10
Maxim Integrated
MAX8586
Single 1.2A USB Switch in
3mm x 3mm TDFN
Package Information
For the latest package outline information and land patterns (footprints), go to www.maximintegrated.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 the package regardless of RoHS status.
PACKAGE TYPE
PACKAGE CODE
OUTLINE NO.
LAND PATTERN NO.
8 TQFN-EP
T833-2
21-0137
90-0059
Maxim Integrated
11
MAX8586
Single 1.2A USB Switch in
3mm x 3mm TDFN
Package Information (continued)
For the latest package outline information and land patterns (footprints), go to www.maximintegrated.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 the package regardless of RoHS status.
COMMON DIMENSIONS
12
PACKAGE VARIATIONS
MIN.
MAX.
PKG. CODE
N
D2
E2
e
JEDEC SPEC
b
A
0.70
0.80
T633-2
6
1.50±0.10
2.30±0.10
0.95 BSC
MO229 / WEEA
0.40±0.05
1.90 REF
D
2.90
3.10
T833-2
8
1.50±0.10
2.30±0.10
0.65 BSC
MO229 / WEEC
0.30±0.05
1.95 REF
E
2.90
3.10
T833-3
8
1.50±0.10
2.30±0.10
0.65 BSC
MO229 / WEEC
0.30±0.05
1.95 REF
SYMBOL
[(N/2)-1] x e
A1
0.00
0.05
T1033-1
10
1.50±0.10
2.30±0.10
0.50 BSC
MO229 / WEED-3
0.25±0.05
2.00 REF
L
0.20
0.40
T1033MK-1
10
1.50±0.10
2.30±0.10
0.50 BSC
MO229 / WEED-3
0.25±0.05
2.00 REF
k
0.25 MIN.
T1033-2
10
1.50±0.10
2.30±0.10
0.50 BSC
MO229 / WEED-3
0.25±0.05
2.00 REF
A2
0.20 REF.
T1433-1
14
1.70±0.10
2.30±0.10
0.40 BSC
----
0.20±0.05
2.40 REF
T1433-2
14
1.70±0.10
2.30±0.10
0.40 BSC
----
0.20±0.05
2.40 REF
T1433-3F
14
1.70±0.10
2.30±0.10
0.40 BSC
----
0.20±0.05
2.40 REF
Maxim Integrated
MAX8586
Single 1.2A USB Switch in
3mm x 3mm TDFN
Revision History
REVISION
NUMBER
REVISION
DATE
0
11/04
Initial release
—
1
1/09
Added automotive part number
1
2
1/10
Removed UL Listing Pending note, corrected top mark for automotive part, and added
soldering temperature (reflow)
3
1/13
Added lead-free designation
DESCRIPTION
PAGES
CHANGED
1, 2
1
Maxim Integrated cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim Integrated product. No circuit patent
licenses are implied. Maxim Integrated reserves the right to change the circuitry and specifications without notice at any time. The parametric values (min and
max limits) shown in the Electrical Characteristics table are guaranteed. Other parametric values quoted in this data sheet are provided for guidance.
Maxim Integrated 160 Rio Robles, San Jose, CA 95134 USA 1-408-601-1000
© 2013 Maxim Integrated Products, Inc.
13
Maxim Integrated and the Maxim Integrated logo are trademarks of Maxim Integrated Products, Inc.
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