FT311D-32Q1C-T FTDI, FT311D-32Q1C-T Datasheet - Page 25

• Manufacturer Part Number: FT311D-32Q1C-T
• Description: USB Interface IC USB Android Host Controller IC QFN-32
• Manufacturer: FTDI

Specifications of FT311D-32Q1C-T

• Rohs: yes
• Product: USB 2.0
• Interface Type: I2C, UART, USB
• Operating Supply Voltage: 0 V to 3.63 V
• Operating Supply Current: 25 mA
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Package / Case: QFN-32

8.3 USB to PWM Converter
Figure 8.3 Application Example showing USB to PWM Converter
This example shows the CNFGx pins set for mode 010 – Pulse Width Modulation (PWM).
PWM channel 0 has been wired to a motor controller. This is typical of applications with robotic arms or
moving machinery.
PWM channel 3 has been connected to an LED. This allows the LED to either flash or by altering the PWM
switching frequency the controller can act as a “dimmer switch” to the LED.
The unused channels may be left unterminated.
Power to the USB port is enabled by the VBUSCTRL# signal
5V
SHIELD
5
100nF
1
2
3
4
3V3
REGULATOR
Copyright © 2012 Future Technology Devices International Limited
3V3
+
GND
100nF
GND
4.7uF
Ferrite
3V3
Bead
47pF
5V_SW
GND
47pF
GND
27R
27R
3V3
10k
GND
DS
_FT311D
100nF
RESET#
USBDM
CNFG2
CNFG1
CNFG0
VREGOUT
VCCIO
USBDP
1V8 PLL VCC IN
VCC
FT311D
USB ANDROID HOST IC Datasheet
VBUSCTRL#
Document No.: FT_000660 Clearance No.: FTDI# 305
IOBUS7
IOBUS0
IOBUS1
IOBUS2
IOBUS3
IOBUS4
IOBUS5
IOBUS6
P Channel Power
PWM_1
PWM_2
PWM_3
MOSFET
PWM_0
CONTROLLER
0.1uF
MOTOR
Version 1.0
0.1uF
5V_SW
470R
Switched 5V Power to
3V3
USB
25