MAX8586 查看數據表（PDF） - Maxim Integrated
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MAX8586 Datasheet PDF : 13 Pages
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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
Power Output. Bypass OUT to GND with a 1µF or greater capacitor. OUT is high impedance during
shutdown.
6
FAULT
Open-Drain Fault-Indicator Output. FAULT is low when the input is below UVLO, or during current limit,
reverse current detection, or thermal shutdown.
7
GND Ground. Connect GND to the exposed paddle and to a ground plane.
8
ENRESET
Auto-Restart Enable Input. Drive ENRESET high to enable auto-restart mode. Drive ENRESET low to disable
auto-restart mode.
—
EP
Exposed Pad. Connect the exposed pad to a large ground plane to improve thermal power dissipation.
Functional Diagram
IN
OUT
OSCILLATOR
UVLO
20ms
TIMER
CHARGE
PUMP
CURRENT-
SEL
CONTROL
LIMIT
ISET
ON
LOGIC
CIRCUITRY
+
25mA
- O.5V
THERMAL-
AUTO-
SHUTDOWN
RESTART
CIRCUITRY
CIRCUITRY
GND
MAX8586
N
ENRESET
FAULT
Maxim Integrated
7
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