Data Sheet

Copyright © Future Technology Devices International Limited 30
FT230X USB TO BASIC UART IC
Version 1.4
Document No.: FT_000566 Clearance No.: FTDI# 260
X-Chip Pin Function
EEPROM Setting
CBUS0
CBUS1
CBUS2
BCD#
PWREN#
SLEEP#
Battery Options
Battery Charger Enable
Force Power Enable
De-acticate Sleep
X
X
PWREN#
GND
CBUS2
10
DP
DM
3V3OUT
RESET#
VCC
GND
CBUS1
17
CBUS0
18
VCCIO
FT230X
BCD#
SLEEP#
GND
GND
0.1uF
0.1uF
GND
GND
600R/2A
10nF
VBUS 3V3OUT
0.1uF
0R
GNDSLD GND
27R
27R
VBUS
1
D-
2
D+
3
GND
5
ID
4
CN USB
3V3OUT 3V3OUTVBUS 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
2
FAULT
3
TIMER
4
GND
5
NTC
6
PROG
7
SHDN
8
BAT
9
ACPR
10
CHRG
1
GND
11
LTC4053EDD
GND
4.7uF
0.1uF
GND
VBUSVBUS
GND
VBATT
GND
GND
1
TB3.5mm
NTC
0.1uF
GND
VBUS
1uF
1R
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 PROG pin select a charge current, then Res = 1500V/I
chg
For more configuration options of the LTC4053 refer to:
AN_175 Battery Charger Detection over USB with FT-X Devices
Note: If the FT230X 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.