FT231XS-R datasheet(30/44 Pages) FTDI

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FT231X USB TO FULL HANDSHAKE UART IC

Datasheet

Version 1.2

Document No.: FT_000565 Clearance No.:

FTDI# 261

X-Chip Pin

Function

EEPROM Setting

CBUS0

CBUS1

CBUS2

BCD#

PWREN#

SLEEP#

Battery Options

Battery Charger Enable

Force Power Enable

De-acticate Sleep

PWREN#

CBUS2

3V3OUT

RESET#

CBUS1

CBUS0

FT231X

BCD#

SLEEP#

GND

0.1uF

GND

600R/2A

10nF

VBUS

3V3OUT

0.1uF

GND

SLD

GND

27R

VBUS

D-

D+

GND

CN USB

3V3OUT

VBUS

N.F.

1K5 - 1%

16K5 1%

GND

BCD#

4K32 1%

PWREN#

1A when connected to a dedicated charger port

0.4A when enumerated

0A when in sleep

0.1A when not enumerated and not in sleep

VCC

FAULT

TIMER

GND

NTC

PROG

SHDN

BAT

ACPR

CHRG

LTC4053EDD

GND

4.7uF

0.1uF

GND

VBUS

GND

VBATT

GND

TB3.5mm

NTC

0.1uF

GND

VBUS

1uF

GND

VBUS

2K2

GND

JP1

1-2

2-3

NCT Enabled

NCT Available

JP1

SIP-3

NTC

GND

NCT Disabled (Default)

JUMPER-2mm

4K32 1%

NCT

SLEEP#

Figure 7.6 USB Battery Charging Detection (3 pin)

To calculate the equivalent resistance on the LTC4053 PROG pin select a charge current, then Res =

1500V/Ichg

For more configuration options of the LTC4053 refer to:

AN_175_Battery Charging Over USB

Note: If the FT231X is connected to a standard host port such that the device is enumerated the battery

charge detection signal is inactive as the device will not be in suspend.

7.5 LED Interface

Any of the CBUS I/O pins can be configured to drive an LED. The FT231X has 3 configuration options for

driving LEDs from the CBUS. These are TXLED#, RXLED#, and TX&RXLED#. Refer to Section 3.3 for

configuration options.

FT231XS-R 데이터시트(PDF) 30 Page - Future Technology Devices International Ltd.

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