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UCS3205 数据表(PDF) 13 Page - Microchip Technology

部件名 UCS3205
功能描述  5A, 22V Bidirectional Load Switch with Fast Role Swap
PDF  30 Pages
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制造商  MICROCHIP [Microchip Technology]
网页  http://www.microchip.com
标志 MICROCHIP - Microchip Technology

UCS3205 数据表(HTML) 13 Page - Microchip Technology

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 2020 Microchip Technology Inc.
DS20006433A-page 13
UCS3205
3.0
PIN DESCRIPTION
Table 3-1 describes the function of each pin as related
to the proposed pinout.
TABLE 3-1:
PIN DESCRIPTION TABLE
Pin
Sym
Pin Type
Description
1,15
GND
Ground
Ground for the power supply and the load switch.
2
EN
Digital Input
The power switch is enabled when this pin is pulled high.
3
FRS
Digital Input
Fast Role Swap control input. This pin enables the circuitry for supporting
the Fast Role Swap behavior defined in the USB Power Delivery
Specification.
4
DIR
Digital Input
Current direction control input. When this pin is high, the reverse current
blocking protection is disabled, allowing the current to flow through the
switch in the opposite direction.
5
DSC
Digital Input
The triggered output discharge is enabled when this pin is high.
6,7,8,9,10
NC
No Connect
No Connect. These pins MUST be left floating.
11
FAULT# Open-Drain
Output
A Logic Low state indicates a Fault condition. This pin requires an
external pull-up resistor.
12
LATCH
Digital Input
If low, the UCS3205 will attempt to restart after a Fault condition
(Auto-Retry mode). If high, the device will latch off when a Fault condition
is detected, and will not attempt to restart until EN is cycled off and on.
13
ISEN
Analog Output
This pin is a scaled analog output of the current passing through the
switch. It requires an external resistor, which sets the current limit
threshold. This pin can be connected to external measurement or
detection circuitry, such as ADC, comparator or an MCU.
14
VOV
Analog Input
Overvoltage threshold setting pin. Connect to a resistor divider from VIN.
VOUT
Exposed Pad,
16,17
VOUT
High Power
Load switch output.
VIN Exposed
Pad, 19,20
VIN
High Power
Load switch input.



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