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Copyrights 2000-2022, Analog Technologies, Inc. All Rights Reserved. Updated on 1/29/2022

5

Analog Technologies

ATFC109D

Digital TEC/Fan Controller

Table 2. Fault code interpretation

SPECIFICATIONS

Table 3. Characteristics

Parameter

Value

Parameter

Value

Input voltage

20V/DC

±1%

0

°C to 35°C

Max. input current

15A

25

°C to 40°C

Output voltage for TEC

20V/DC

±1%

−10°C to 10°C

Max. output current for TEC

15A

Temperature accuracy

±1°C

Output voltage of fan

20V/DC

±1%

Operating temp. range

−20°C to 85°C

(

−4°F to +185°F)

Max. output current of fan

3.2A

One controller assembly includes: 1 PCB assembly, 2 terminal blocks, 3 IC ports, 3 buttons, 1 digital display tube, and 13

LEDs. Pin functions of the terminal blocks and IC ports are shown in Table 4.

Table 4. Pin functions

Terminal

Block

Pin

#

Pin

Name

Description

Type

Terminal 1

1

TEC+

TEC positive terminal

Output

2

PGND

Signal ground

Input

3

VPS

Power ground

Input

4

TEC

−

TEC negative terminal

Output

Terminal 2

1

FAN

−

Fan negative terminal

Output

2

FAN+

Fan positive terminal

Output

IC port 1

IC1

The cold plate temperature sensor input

Input

IC port 2

IC2

The heatsink temperature sensor input

Input

IC port 3

IC3

The chamber temperature sensor input

Input

Fault #

Fault Name

Description

1

Cold Plate Temperature too low

Cold Plate Temperature < Lower Object Temperature Limit

2

Cold Plate Temperature too high

Cold Plate Temperature > Upper Object Temperature Limit