- 您现在的位置：买卖IC网 > Sheet目录350 > PCU9955TW,118 (NXP Semiconductors)IC LED DRVR CONST CURR
NXP Semiconductors
PCU9955
16-channel UFm I 2 C-bus 57 mA constant current LED driver
When the Auto-Increment Flag is set (AIF = logic 1), the seven low order bits of the
Control register are automatically incremented after a write. This allows the user to
program the registers sequentially. Four different types of Auto-Increment are possible,
depending on AI1 and AI0 values of MODE1 register.
register address
AIF
D6
D5
D4
D3
D2
D1
D0
Auto-Increment Flag
002aad850
reset state = 80h
Remark: The Control register does not apply to the Software Reset I 2 C-bus address.
Fig 4.
Table 3.
Control register
Auto-Increment options
AIF
AI1 [1]
AI0 [1] Function
0
1
0
0
0
0
no Auto-Increment
Auto-Increment for registers (00h to 41h). D[6:0] roll over to 00h after the last
register 41h is accessed.
1
0
1
Auto-Increment for individual brightness registers only (0Ah to 19h).
D[6:0] roll over to 0Ah after the last register (19h) is accessed.
1
1
0
Auto-Increment for MODE1 to IREF15 control registers (00h to 31h).
D[6:0] roll over to 00h after the last register (31h) is accessed.
1
1
1
Auto-Increment for global control registers and individual brightness registers
(08h to 19h). D[6:0] roll over to 08h after the last register (19h) is accessed.
[1]
AI1 and AI0 come from MODE1 register.
Remark: Other combinations not shown in Table 3 (AIF + AI[1:0] = 001b, 010b and 011b)
are reserved and must not be used for proper device operation.
AIF + AI[1:0] = 000b is used when the same register must be accessed several times
during a single I 2 C-bus communication, for example, changes the brightness of a single
LED. Data is overwritten each time the register is accessed during a write operation.
AIF + AI[1:0] = 100b is used when registers 00h to 41h must be sequentially accessed, for
example, power-up programming.
AIF + AI[1:0] = 101b is used when the 16 LED drivers must be individually programmed
with different values during the same I 2 C-bus communication, for example, changing color
setting to another color setting.
AIF + AI[1:0] = 110b is used when MODE1 to IREF15 registers must be programmed with
different settings during the same I 2 C-bus communication.
AIF + AI[1:0] = 111b is used when the 16 LED drivers must be individually programmed
with different values in addition to global programming.
Only the 7 least significant bits D[6:0] are affected by the AIF, AI1 and AI0 bits.
PCU9955
Product data sheet
All information provided in this document is subject to legal disclaimers.
Rev. 2 — 2 October 2012
? NXP B.V. 2012. All rights reserved.
8 of 39
发布紧急采购，3分钟左右您将得到回复。
相关PDF资料
PDA006B-700C
LED DRIVER 6W 700MA
PDA010B-700C
LED DRIVER 8.4W 700MA
PDA015B-350C
LED DRIVER 15W 350MA
PDA030B-700C
LED DRIVER 30W 700MA
PDC500-1024F
SINGLE OUTPUT 500W 24V
PDU1215
POWER STRIP 15A 13 OUT RACK M
PDU1220T
POWER STRIP 20A 13 OUT RACK MNT
PDU1220
POWER STRIP 20A 13 OUT RACK MNT
相关代理商/技术参数
PCU9956ATWY
制造商:NXP Semiconductors 功能描述:PCU9956ATW/HTSSOP38/REEL13DP// - Tape and Reel 制造商:NXP Semiconductors 功能描述:IC LED DVR PWM CTLR 38HTSSOP
PCUA30
制造商:HONEYWELL-ACC 制造商全称:Honeywell Accelerometers 功能描述:ULTRASONIC PROXIMITY SENSORS
PCUA30M30AI
功能描述:ULTRASONIC SENSOR 30" 4-20MA RoHS:是 类别:传感器，转换器 >> 超声波接收器/发射器 系列:- 标准包装:1 系列:- 频率:215kHz 带宽:- 发射灵敏度:- 接收灵敏度:- 电压 - 额定:10 ~ 30VDC 射束角:10° 包装:*
PCUA30M30AV
功能描述:ULTRASONIC SENSOR 30" 0-5V RoHS:是 类别:传感器，转换器 >> 超声波接收器/发射器 系列:- 标准包装:1 系列:- 频率:215kHz 带宽:- 发射灵敏度:- 接收灵敏度:- 电压 - 额定:10 ~ 30VDC 射束角:10° 包装:*
PCUA30M30-AV
功能描述:ULTRASONIC SENSOR 30" 0-5V RoHS:是 类别:传感器，转换器 >> 超声波接收器/发射器 系列:- 标准包装:1 系列:- 频率:215kHz 带宽:- 发射灵敏度:- 接收灵敏度:- 电压 - 额定:10 ~ 30VDC 射束角:10° 包装:*
PCUA30M30NA
功能描述:ULTRASONIC SENSOR 30" NO RoHS:是 类别:传感器，转换器 >> 超声波接收器/发射器 系列:- 标准包装:1 系列:- 频率:215kHz 带宽:- 发射灵敏度:- 接收灵敏度:- 电压 - 额定:10 ~ 30VDC 射束角:10° 包装:*
PCUA30M30NB
制造商:Honeywell Sensing and Control 功能描述:Proximity Sensor Ultrasonic NC 76cm 10V to 30V 2-Pin
PCUA30M30PA
功能描述:ULTRASONIC SENSOR 30" NO RoHS:是 类别:传感器，转换器 >> 超声波接收器/发射器 系列:- 标准包装:1 系列:- 频率:215kHz 带宽:- 发射灵敏度:- 接收灵敏度:- 电压 - 额定:10 ~ 30VDC 射束角:10° 包装:*