MAX8586ETA/V+T Maxim Integrated Products, MAX8586ETA/V+T Datasheet - Page 10

• Manufacturer Part Number: MAX8586ETA/V+T
• Description: IC USB SWITCH 1.2A SGL 8-TDFN
• Manufacturer: Maxim Integrated Products
• Type: USB Switchr

Specifications of MAX8586ETA/V+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

Because the package power dissipation is 1951mW, the
MAX8586 die temperature exceeds the +160°C thermal-
shutdown 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:
Single 1.2A USB Switch in
3mm x 3mm TDFN
Figure 1. Typical Application Circuit
10
______________________________________________________________________________________
P = 0.025A x 5V = 0.125W
INPUT SUPPLY
2.75V TO 5.5V
SELECTION
INDICATOR
CONTROL/
POLARITY
OUTPUT
ON/OFF
ON/OFF
FAULT
R1
100kΩ
1µF
C1
IN
FAULT
SEL
ON
MAX8586
TRANSISTOR COUNT: 2117
PROCESS: BiCMOS
GND
TOP VIEW
ENRESET
ISET
OUT
ISET
SEL
ON
IN
1
2
3
4
C2
1µF
OUTPUT SUPPLY
AUTO-RESTART
UP TO 1.2A
R2
26kΩ
ON/OFF
MAX8586
TDFN
Pin Configuration
Chip Information
5
8
7
6
ENRESET
GND
FAULT
OUT