Microchip Technology UCS1003-2, Руководство пользователя

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UCS1003-2 Evaluation Board User’s Guide
DS50002430A-page 20

2016 Microchip Technology Inc.
3.2 STAND-ALONE FUNCTIONALITY
The UCS1003-2 is intended for the stand-alone USB charger and BC1.2 CDP, DCP
and SDP applications. The green LED (LD2 – CHRG) indicates that the charging
current has exceeded the 175 mA threshold (I
BUS_CHG
).
See Table 2-1 for the description of jumpers.
3.2.1 Charger Emulation Mode Configurations
The Charger Emulation mode of the UCS1003-2 is controlled by the pin states: M1, M2
and EM_EN. These are the jumpers located on the J11 header.
3.2.2 Attach Detection and Power States
The UCS1003-2 can use the attach detection functionality or force the Active mode
power state. This is controlled by jumper J14, position 3-4.
3.3 FAULT HANDLING
The UCS1003-2 has two modes of Fault handling that can be configured for the LATCH
upon Fault or auto-recovery. Jumper J14, position 1-2, selects the Fault handling.
When a Fault condition is detected, the red LED (marked as LD1 – ALERT) turns on.
See Table 2-1 for the description of jumpers.
3.4 CURRENT LIMITING
The UCS1003-2 is capable of eight selectable current limits (see the “UCS1003-1/2/3
Data Sheet” for detailed information). Jumper J13 selects the current-limiting value.
See Table 2-1 for the description of jumpers.
3.5 HIGH-SPEED USB DATA SWITCH
The UCS1003-2 contains a series of USB 2.0-compliant high-speed switch between
the DP and DM input and output pins. This switch is functional in CDP, SDP and USB
pass-through configurations. When used in one of these configurations, a port from a
PC must be connected to the J9 USB connector.