参数资料
型号: PCA9685PW/Q900,118
厂商: NXP Semiconductors
文件页数: 23/51页
文件大小: 0K
描述: IC PWM CTLR LED DVR 28TSSOP
产品培训模块: I²C Bus Fundamentals
标准包装: 1
拓扑: 开路漏极,PWM
输出数: 16
内部驱动器:
类型 - 主要: 背光,LED 闪烁器
类型 - 次要: RGBA
频率: 25MHz,50MHz
电源电压: 2.3 V ~ 5.5 V
输出电压: 5.5V
安装类型: 表面贴装
封装/外壳: 28-TSSOP(0.173",4.40mm 宽)
供应商设备封装: 28-TSSOP
包装: 标准包装
工作温度: -40°C ~ 85°C
其它名称: 568-5931-6
NXP Semiconductors
PCA9685
16-channel, 12-bit PWM Fm+ I 2 C-bus LED controller
Table 6. LED_ON, LED_OFF control registers (address 06h to 45h) bit description …continued
Legend: * default value.
Address
3Ch
3Dh
Register
LED13_OFF_L
LED13_OFF_H
Bit
7:0
7:5
4
Symbol
LED13_OFF_L[7:0]
reserved
LED13_OFF_H[4]
Access
R/W
R
R/W
Value
0000 0000*
000*
1*
Description
LEDn_OFF count for LED13, 8 LSBs
non-writable
LED13 full OFF
3:0
LED13_OFF_H[3:0] R/W
0000*
LEDn_OFF count for LED13, 4 MSBs
3Eh
3Fh
40h
41h
LED14_ON_L
LED14_ON_H
LED14_OFF_L
LED14_OFF_H
7:0
7:5
4
3:0
7:0
7:5
4
LED14_ON_L[7:0]
reserved
LED14_ON_H[4]
LED14_ON_H[3:0]
LED14_OFF_L[7:0]
reserved
LED14_OFF_H[4]
R/W
R
R/W
R/W
R/W
R
R/W
0000 0000*
000*
0*
0000*
0000 0000*
000*
1*
LEDn_ON count for LED14, 8 LSBs
non-writable
LED14 full ON
LEDn_ON count for LED14, 4 MSBs
LEDn_OFF count for LED14, 8 LSBs
non-writable
LED14 full OFF
3:0
LED14_OFF_H[3:0] R/W
0000*
LEDn_OFF count for LED14, 4 MSBs
42h
43h
44h
45h
LED15_ON_L
LED15_ON_H
LED15_OFF_L
LED15_OFF_H
7:0
7:5
4
3:0
7:0
7:5
4
LED15_ON_L[7:0]
reserved
LED15_ON_H[4]
LED15_ON_H[3:0]
LED15_OFF_L[7:0]
reserved
LED15_OFF_H[4]
R/W
R
R/W
R/W
R/W
R
R/W
0000 0000*
000*
0*
0000*
0000 0000*
000*
1*
LEDn_ON count for LED15, 8 LSBs
non-writable
LED15 full ON
LEDn_ON count for LED15, 4 MSBs
LEDn_OFF count for LED15, 8 LSBs
non-writable
LED15 full OFF
3:0
LED15_OFF_H[3:0] R/W
0000*
LEDn_OFF count for LED15, 4 MSBs
The LEDn_ON_H output control bit 4, when set to logic 1, causes the output to be always
ON. The turning ON of the LED is delayed by the amount in the LEDn_ON registers.
LEDn_OFF[11:0] are ignored. When this bit = 0, then the LEDn_ON and LEDn_OFF
registers are used according to their normal definition.
The LEDn_OFF_H output control bit 4, when set to logic 1, causes the output to be
always OFF. In this case the values in the LEDn_ON registers are ignored.
Remark: When all LED outputs are configured as ‘always OFF’, the prescale counter and
all associated PWM cycle timing logic are disabled. If LEDn_ON_H[4] and
LEDn_OFF_H[4] are set at the same time, the LEDn_OFF_H[4] function takes
precedence.
PCA9685
Product data sheet
All information provided in this document is subject to legal disclaimers.
Rev. 3 — 2 September 2010
? NXP B.V. 2010. All rights reserved.
23 of 51
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