pca9685 NXP Semiconductors, pca9685 Datasheet - Page 34

• Manufacturer Part Number: pca9685
• Description: 16-channel, 12-bit Pwm Fm+ I 2c-bus Led Controller
• Manufacturer: NXP Semiconductors

NXP Semiconductors
10. Application design-in information
PCA9685_1
Product data sheet
Fig 26. Typical application
(1) Resistor value should be chosen by referencing section 7 of UM10204, “I
(2) OE requires pull-up resistor if control signal from the master is open-drain.
I
All 16 of the LEDn outputs configurable as either open-drain or totem pole. Mixing of configuration is not possible.
Remark: Set INVRT = 0, OUTDRV = 1, OUTNE = 01 (MODE2 register bits)
2
C-bus address = 1010 101x.
I
2
C-BUS/SMBus
MASTER
V
DD
= 2.5 V, 3.3 V or 5.0 V
SDA
SCL
OE
(1)
(1)
10 k (2)
Rev. 01 — 24 July 2008
SDA
SCL
OE
EXTCLK
A0
A1
A2
A3
A4
A5
V
SS
PCA9685
V
DD
16-channel, 12-bit PWM Fm+ I
002aac827
LED10
LED11
LED12
LED13
LED14
LED15
LED0
LED1
LED2
LED3
LED4
LED5
LED6
LED7
LED8
LED9
2
C-bus specification and user manual” .
5 V
5 V
5 V
5 V
2
C-bus LED controller
PCA9685
© NXP B.V. 2008. All rights reserved.
12 V
12 V
12 V
12 V
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