MAX8586(2004) 查看數據表（PDF） - Maxim Integrated
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MAX8586 Datasheet PDF : 11 Pages
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Single 1.2A USB Switch in
3mm x 3mm TDFN
INPUT SUPPLY
2.75V TO 5.5V
C1
OUTPUT
FAULT
R1
100kΩ
1µF
INDICATOR
ON/OFF
POLARITY
SELECTION
CONTROL/
ON/OFF
IN
OUT
MAX8586
FAULT
ENRESET
SEL
ISET
ON
GND
OUTPUT SUPPLY
UP TO 1.2A
C2
1µF
AUTO-RESTART
ON/OFF
R2
26kΩ
Figure 1. Typical Application Circuit
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:
P = 0.025A x 5V = 0.125W
Pin Configuration
TOP VIEW
SEL 1
ISET 2
ON 3
IN 4
MAX8586
8 ENRESET
7 GND
6 FAULT
5 OUT
TDFN
Chip Information
TRANSISTOR COUNT: 2117
PROCESS: BiCMOS
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