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UCS1002-3 Datasheet(PDF) 104 Page - Microchip Technology

Part # UCS1002-3
Description  Programmable USB Port Power Controller with Charger Emulation
PDF  114 Pages
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Manufacturer  MICROCHIP [Microchip Technology]
Direct Link  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

UCS1002-3 Datasheet(HTML) 104 Page - Microchip Technology

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UCS1002-3
DS20006852A-page 104
 2023 Microchip Technology Inc. and its subsidiaries
11.3
Stand-Alone Operating Mode
Stand-Alone mode enables the UCS1002-3 to operate
without active SMBus/I2C communications. Stand-
Alone mode can be enabled by connecting a pull-down
resistor
greater
or
equal
to
47 k
 on the
COMM_SEL/ILIM pin as shown in Table 11-1.
When the device is configured to operate in Stand-
Alone mode, the fault handling and Attach Detection
controls are determined via the LATCH and S0 pins as
shown in Table 11-10.
In the Stand-Alone operating mode, communications
from and to the UCS1002-3 are limited to the pins
PWR_EN, EM_EN, M2, M1, ALERT# and A_DET#.
Note:
If it is necessary to connect the S0 or
LATCH pins to VDD via a pull-up resistor,
the pull-up resistor value must be 100 k
in order to guarantee VIH specification.
Similarly, if it is necessary to connect the
S0 or LATCH pins to GND via a pull-down
resistor, the pull-down resistor value must
be 100 k
 in order to guarantee VIL
specification.
TABLE 11-10: STAND-ALONE FAULT AND ATTACH DETECTION SELECTION
LATCH Pin
S0 Pin
Command
Low
Low
No Attach Detection. Auto-Recovery upon error detection.
Low
High
Attach Detection in the Detect power state. Auto-Recovery upon error detection.
High
Low
No Attach Detection. Error states are Latched and require host to change
PWR_EN control to recover from Error state.
High
High
Attach Detection in the Detect power state. Error states are Latched and
require host to change PWR_EN control to recover from Error state.



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