PCA9622

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© NXP B.V. 2012. All rights reserved.

Product data sheet

Rev. 4 — 6 September 2012

21 of 39

NXP Semiconductors

PCA9622

10. Application design-in information

(1) OE requires pull-up resistor if control signal from the master is open-drain.

Remark: During power-down, slow decay of voltage supplies may keep LEDs illuminated. Consider disabling LED outputs

using HIGH level applied to OE pin.

Fig 16. Typical application

PCA9622

LED0

LED1

SDA

SCL

OE

MASTER

SDA

SCL

10 k

Ω

OE

10 k

Ω

LED2

LED3

A0

A1

A2

A3

A4

A5

A6

10 k

Ω(1)

up to 40 V

LED8

LED9

LED10

LED11

LED4

LED5

LED6

LED7

up to 40 V

LED light bar

LED12

LED13

LED14

LED15

up to 40 V

LED light bar

002aad532

up to 40 V