ADA4431-1

Data Sheet

Rev. A | Page 6 of 12

PIN CONFIGURATION AND FUNCTION DESCRIPTIONS

1

2

3

GND

SUBS

+VS

4

CAP1

12

10

9

+VS

DIS

11

IN

LDO

ADA4431-1

TOP VIEW

(Not to Scale)

NOTES

1. EXPOSED PAD. THE EPAD IS ELECTRICALLY ISOLATED.

TO OPTIMIZE THERMAL PERFORMANCE, CONNECT THE EPAD

TO A GND PLANE.

Figure 4. Pin Configuration

Table 5. Pin Function Descriptions

Pin No.

Mnemonic

Description

1

+VS

Supply Voltage.

2

IN

Video Input.

3

DIS

Disable Pin. High = charge pump on, floating = charge pump off, low = disabled.

4

LDO

Load Detect Output. High = video load present.

5

CAP4

Capacitor 2, Lead 2.

6

CAP3

Capacitor 2, Lead 1.

7

GND

Ground.

8

CAP2

Capacitor 1, Lead 2.

9

CAP1

Capacitor 1, Lead 1.

10

+VS

Supply Voltage.

11

SUBS

Substrate Voltage Pin. Bypass to GND with 1.0 µF capacitor.

12

GND

Ground.

13

SAG

SAG Feedback Pin.

14

OUT

Video Output.

15

FB2

Load Detect Feedback Pin 2. Connect to device side of series termination resistor.

16

FB1

Load Detect Feedback Pin 1. Connect to load side of series termination resistor.

EPAD

Exposed Pad. The EPAD is electrically isolated. To optimize thermal performance, connect the EPAD to a GND plane.