Copyright © 2010 Future Technology Devices International Limited

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Document Reference No.: FT_000132

USB-COM485-PLUS1 Datasheet

Version 1.21

Clearance No.: FTDI# 95

transmission line and the input impedance of 32 receivers on the line.

4.3 Power Output

The USB-COM485-Plus1 assign pin9 of DE-9P to provide +5V DC for an external device that requires

power. The maximum allowable current is 500mA, including the circuitry of the USB-COM485-Plus1

itself. Up to 250mA may be used by the external device.

Parameter

Description

Minimum

Typical

Maximum

Units

Conditions

VCC_5V

Output Power Voltage

4.25

5.0

5.25

V

N/A

IO

Output Power Current

0

250

mA

N/A

Table 4.3 Power Output for USB-COM485-Plus1