CAT5120, CAT5121, CAT5122

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2

Figure 1. Functional Diagram

GND

H

L

W

U/D

CS

Table 1. PIN DESCRIPTIONS

Name

Description

Power Supply

GND

Ground

U/D

Up/Down Control Input. With CS low, a low-to-high transition increments or decrements the wiper position.

CS

Chip Select Input. A high-to-low CS transition determines the mode: increment if U/D is high, or decrement if U/D is low.

L

Low Terminal of Resistor

W

Wiper Terminal of Resistor

H

High Terminal of Resistor

Table 2. ABSOLUTE MAXIMUM RATINGS

Parameters

Ratings

Units

−0.3 to +6

V

All Other Pins to GND

V

Input and Output Latch-up Immunity

200

mA

Maximum Continuous Current into H, L and W

50 kW

10 kW

1.3

1.3

mA

5-pin SC−70 (Note 1)

6-pin SC−70 (Note 1)

247

245

mW

Operating Temperature Range

−40 to +85

C

Junction Temperature

+150

C

Storage Temperature Range

−65 to +150

C

Soldering Temperature (soldering, 10 s)

+300

C

Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above the

Recommended Operating Conditions is not implied. Extended exposure to stresses above the Recommended Operating Conditions may affect

device reliability.