UMFT231XC-01 FTDI, UMFT231XC-01 Datasheet - Page 6

• Manufacturer Part Number: UMFT231XC-01
• Description: Interface Development Tools USB to UART Dev Mod w/ USB Charge Detect
• Manufacturer: FTDI
• Type: USB to UARTr

Specifications of UMFT231XC-01

• Rohs: yes
• Product: Development Modules
• Tool Is For Evaluation Of: FT231XS
• Interface Type: UART, USB
• Operating Supply Voltage: 3.3 V
• Dimensions: 50 mm x 37.5 mm
• Tradename: X-Chip

4.5 Jumper Configurations
JP1 is used to reconfigure the power sourced by the switched power net controlled by the CBUS1 line
connected to a MOSFET.
Table 4.5 – Solder Links JP1 Pin Description
JP2 is used to adjust the UMFT231XC to facilitate for a battery with or without an NTC line. If a battery has an NTC
line, pin 2 of CN2 should be connected to the NTC pin of the battery charger, however if there is no LTC line available
the NTC pin of the battery charger should be tired to ground using this jumper.
Table 4.6 – Solder Links JP2 Pin Description
4.6 LEDS
The SWPWR LED illuminates when the SWPWR net is powered up. With the default MTP ROM
configuration power to SWPWR is switched on and off by PWREN# to the MOSFET Q1. Q1 will be on when
enumerated and off when not enumerated. SWPWR can be sourced from either VBUS or VBATT
depending on the setting of JP1.
The ACPR# LED illuminates when voltage supplied to VBUS is above the under-voltage lockout threshold
and at least 35mV above VBATT (which means the voltage supplied is suitable for charging).
The CHRG# LED illuminates when the battery is being charged.
The FAULT# LED illuminates when a fault is detected. These detected faults can be either NTC being out
of range and a timeout occurring under trickle charge conditions.
Jumper
Jumper
No.
No.
JP1
JP1
JP2
JP2
Shorted
Shorted
Pin1-2
Pin2-3
Pin1-2
Pin2-3
Pins
Pins
Settings
Settings
Factory
Factory
Default
Setting
Default
Setting
-
-
Description
Source switchable power from USB VBUS input. With a default configuration
SWPWR power is shutdown when the FT231X has not enumerated. This
function supports limiting the current flow through the USB bus while in
suspend to meet USB compliancy regulations.
Source switchable power from battery.
Description
If the charged battery has an NTC line. Connect the line to CN2 pin 2 and
configure JP2 to this mode. NTC is a temperature sensing safety feature used
to prevent the battery overheating.
If there is no NTC line available, then configure JP2 to this jumper setting.
This setting shorts the UMFT231XC’s NCT line to ground. This indicates that
NCT is not available, and allows the battery charger to function without this
function.
Document Reference No.: FT_000521
Copyright © 2012 Future Technology Devices International Limited
UMFT231XC Datasheet
Clearance No.: FTDI#
Version 1.0
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