收藏本站
NXP Semiconductors
PCA9634
8-bit Fm+ I 2 C-bus LED driver
Table 6. MODE2 - Mode register 2 (address 01h) bit description …continued
Legend: * default value.
Bit
1 to 0
Symbol
OUTNE[1:0] [3]
Access
R/W
Value
00
Description
when OE = 1 (output drivers not enabled), LEDn = 0
01*
10
11
when OE = 1 (output drivers not enabled):
LEDn = 1 when OUTDRV = 1
LEDn = high-impedance when OUTDRV = 0 (same as OUTNE[1:0] = 10)
when OE = 1 (output drivers not enabled), LEDn = high-impedance
reserved
[1]
[2]
[3]
See Section 7.7 “Using the PCA9634 with and without external drivers” for more details. Normal LEDs can be driven directly in either
mode. Some newer LEDs include integrated Zener diodes to limit voltage transients, reduce EMI and protect the LEDs, and these must
be driven only in the open-drain mode to prevent overheating the IC.
Change of the outputs at the STOP command allows synchronizing outputs of more than one PCA9634. Applicable to registers from
02h (PWM0) to 0Dh (LEDOUT) only.
See Section 7.4 “Activ e LOW output enable input” for more details.
7.3.3 PWM0 to PWM7: Individual brightness control
Table 7. PWM0 to PWM7 - PWM registers 0 to 7 (address 02h to 09h) bit description
Legend: * default value.
Address
Register
Bit
Symbol
Access Value
Description
02h
03h
04h
05h
06h
07h
08h
09h
PWM0
PWM1
PWM2
PWM3
PWM4
PWM5
PWM6
PWM7
7:0
7:0
7:0
7:0
7:0
7:0
7:0
7:0
IDC0[7:0]
IDC1[7:0]
IDC2[7:0]
IDC3[7:0]
IDC4[7:0]
IDC5[7:0]
IDC6[7:0]
IDC7[7:0]
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
0000 0000* PWM0 Individual Duty Cycle
0000 0000* PWM1 Individual Duty Cycle
0000 0000* PWM2 Individual Duty Cycle
0000 0000* PWM3 Individual Duty Cycle
0000 0000* PWM4 Individual Duty Cycle
0000 0000* PWM5 Individual Duty Cycle
0000 0000* PWM6 Individual Duty Cycle
0000 0000* PWM7 Individual Duty Cycle
A 97 kHz ?xed frequency signal is used for each output. Duty cycle is controlled through
256 linear steps from 00h (0 % duty cycle = LED output off) to FFh
(99.6 % duty cycle = LED output at maximum brightness). Applicable to LED outputs
programmed with LDRx = 10 or 11 (LEDOUT0 and LEDOUT1 registers).
IDC [ 7 : 0 ]
PCA9634_6
duty cycle = ------------------------
256
(1)
? NXP B.V. 2008. All rights reserved.
Product data sheet
Rev. 06 — 12 September 2008
12 of 38
发布紧急采购，3分钟左右您将得到回复。

采购需求

(若只采购一条型号，填写一行即可)

发布成功！您可以继续发布采购。也可以进入我的后台，查看报价

发布成功！您可以继续发布采购。也可以进入我的后台，查看报价

*型号 *数量 厂商 批号 封装
添加更多采购

我的联系方式

*
*
*
相关PDF资料
PCA9635PW/S911,118 IC LED DRIVER RGBA 28-TSSOP
PCA9685PW,118 IC LED DRIVER RGBA 28-TSSOP
PCA9922PW,118 IC LED DRIVER LINEAR 16-TSSOP
PCA9955TW,118 IC LED DRVR CONST CURR
PCF85102C-2P/03,11 IC EEPROM 2KBIT 100KHZ 8DIP
PCF85103C-2T/00,11 IC EEPROM 2KBIT 100KHZ 8SOIC
PCF8570T/F5,512 IC SRAM 2KBIT 100KHZ 8SOIC
PCF8582C-2T/03,118 IC EEPROM 2KBIT 100KHZ 8SOIC
相关代理商/技术参数
PCA9634D-T 功能描述:LED照明驱动器 8BIT I2C FM+ TP LED CON RST OE RoHS:否 制造商:STMicroelectronics 输入电压:11.5 V to 23 V 工作频率: 最大电源电流:1.7 mA 输出电流: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:SO-16N
PCA9634PW 功能描述:LED照明驱动器 8BIT I2C FM+ TP LED CON RST OE RoHS:否 制造商:STMicroelectronics 输入电压:11.5 V to 23 V 工作频率: 最大电源电流:1.7 mA 输出电流: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:SO-16N
PCA9634PW,112 功能描述:LED照明驱动器 8BIT I2C FM+ TP LED RoHS:否 制造商:STMicroelectronics 输入电压:11.5 V to 23 V 工作频率: 最大电源电流:1.7 mA 输出电流: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:SO-16N
PCA9634PW,118 功能描述:LED照明驱动器 8BIT I2C FM+ TP LED CON RST OE RoHS:否 制造商:STMicroelectronics 输入电压:11.5 V to 23 V 工作频率: 最大电源电流:1.7 mA 输出电流: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:SO-16N
PCA9634PW,118-CUT TAPE 制造商:NXP 功能描述:PCA9634 Series 5.5 V 400 kHz SMT 8 bit Fm+I2C Bus LED Driver - TSSOP-20
PCA9634PW/S910,118 功能描述:LED照明驱动器 8BIT I2C FM+ TP LED CON RST OE RoHS:否 制造商:STMicroelectronics 输入电压:11.5 V to 23 V 工作频率: 最大电源电流:1.7 mA 输出电流: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:SO-16N
PCA9634PW/S910-T 功能描述:LED照明驱动器 8BIT I2C FM+ TP LED CON RST OE RoHS:否 制造商:STMicroelectronics 输入电压:11.5 V to 23 V 工作频率: 最大电源电流:1.7 mA 输出电流: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:SO-16N
PCA9634PW/S911,118 功能描述:LED照明驱动器 8-BIT I2C FM+TP LED CON RST OE RoHS:否 制造商:STMicroelectronics 输入电压:11.5 V to 23 V 工作频率: 最大电源电流:1.7 mA 输出电流: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:SO-16N