NXP Semiconductors
PCA9624
8-bit Fm+ I 2 C-bus 100 mA 40 V LED driver
10. Application design-in information
up to 40 V
up to 40 V
V DD = 2.5 V, 3.3 V or 5.0 V
I 2 C-BUS/SMBus
MASTER
SDA
SCL
10 k Ω
10 k Ω
10 k Ω (1)
SDA
SCL
V DD
LED0
LED1
LED2
OE
OE
LED3
PCA9624
A0
A1
A2
A3
A4
A5
A6
V SS
LED4
LED5
LED6
LED7
V SS
002aad599
(1) OE requires pull-up resistor if control signal from the master is open-drain.
I 2 C-bus address = 0010 101x.
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 17. Typical application
PCA9624
Product data sheet
All information provided in this document is subject to legal disclaimers.
Rev. 3 — 6 September 2012
? NXP B.V. 2012. All rights reserved.
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