2. ELECTRONICS SPECIFICATIONS

EO18-33025

2.3 Description of the Main PC Board

DC/DC Converter (U22, 23):

Type: TS34063

 

It generates the voltages (+5V, +3.3V) from the power supply voltage

 

(AC adapter).

 

+5V and +3.3V are used as the operating voltage for each circuit.

Eternet Transceiver (U8):

Type: DM9161

 

This IC is used for controlling the Ethernet (10BASET/10BASETX).

Regulator (U24, U33):

Type: TS68N28CX5, TS9007DCX

 

It generates the voltages (+1.8) from the DC/DC converter voltage

 

(+3.3V).

Stepping Motor Driver (U18, U19): Type: PBL3717

This IC is used for controlling the Stepping Motor.

Serial Interface Controller (U12): Type: SP3232ECY

This IC is used for controlling the Serial Interface (RS-232C).

Reset detect circuit (U25):

Type: TS358

 

This IC is single supply dual operation amplifiers.

 

It detects the voltage depression from +24V and +3.3V and outputs the

 

Power Down signal to the CPU.

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Image 17
Toshiba B-EV4 manual DC/DC Converter U22 Type TS34063