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| 型号： | PCA9550D,118 |
| 厂商： | NXP Semiconductors |
| 文件页数： | 15/26页 |
| 文件大小： | 0K |
| 描述： | IC LED DRIVER BLINKER 8-SOIC |
| 标准包装： | 2,500 |
| 拓扑： | 开路漏极，PWM |
| 输出数： | 2 |
| 内部驱动器： | 是 |
| 类型 - 主要： | LED 闪烁器 |
| 频率： | 400kHz |
| 电源电压： | 2.3 V ~ 5.5 V |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 8-SOIC（0.154"，3.90mm 宽） |
| 供应商设备封装： | 8-SO |
| 包装： | 带卷 (TR) |
| 工作温度： | -40°C ~ 85°C |
| 配用： | 568-4002-ND - DEMO BOARD I2C |
| 其它名称： | 935272882118 PCA9550D-T PCA9550D-T-ND |
NXP Semiconductors
PCA9550
2-bit I 2 C-bus LED driver with programmable blink rates
11. Dynamic characteristics
Table 14.
Dynamic characteristics
Symbol
Parameter
Conditions
Standard-mode
Fast-mode I 2 C-bus
Unit
I 2 C-bus
Min
Max
Min
Max
f SCL
t BUF
SCL clock frequency
bus free time between a STOP and
0
4.7
100
-
0
1.3
400
-
kHz
μ s
START condition
t HD;STA
t SU;STA
hold time (repeated) START condition
set-up time for a repeated START
4.0
4.7
-
-
0.6
0.6
-
-
μ s
μ s
condition
t SU;STO
t HD;DAT
set-up time for STOP condition
data hold time
4.0
0
-
-
0.6
0
-
-
μ s
ns
t VD;ACK
data valid acknowledge time
[1]
-
600
-
600
ns
t VD;DAT
t SU;DAT
t LOW
t HIGH
t r
t f
t SP
data valid time
data set-up time
LOW period of the SCL clock
HIGH period of the SCL clock
rise time of both SDA and SCL signals
fall time of both SDA and SCL signals
pulse width of spikes that must be
LOW-level
HIGH-level
[2]
[2]
-
-
250
4.7
4.0
-
-
-
600
1500
-
-
-
1000
300
50
-
-
100
1.3
0.6
0.1C b [3]
20 +
0.1C b [3]
20 +
-
600
600
-
-
-
300
300
50
ns
ns
ns
μ s
μ s
ns
ns
ns
suppressed by the input ?lter
Port timing
t v(Q)
t su(D)
t h(D)
data output valid time
data input set-up time
data input hold time
-
100
1
200
-
-
-
100
1
200
-
-
ns
ns
μ s
Reset
t w(rst)
t rec(rst)
reset pulse width
reset recovery time
6
0
-
-
6
0
-
-
ns
ns
t rst
reset time
[4][5]
400
-
400
-
ns
[1]
[2]
[3]
[4]
[5]
t VD;ACK = time for Acknowledgement signal from SCL LOW to SDA (out) LOW.
t VD;DAT = minimum time for SDA data output to be valid following SCL LOW.
C b = total capacitance of one bus line in pF.
Resetting the device while actively communicating on the bus may cause glitches or errant STOP conditions.
Upon reset, the full delay will be the sum of t rst and the RC time constant of the SDA bus.
PCA9550_5
? NXP B.V. 2008. All rights reserved.
Product data sheet
Rev. 05 — 13 October 2008
15 of 26
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| PCA9550DP | 制造商:PHILIPS 制造商全称:NXP Semiconductors 功能描述:2-bit I2C LED driver with programmable blink rates |
| PCA9550DP,118 | 功能描述:LED照明驱动器 2-BIT I2C FM OD 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 |
| PCA9550DP,118-CUT TAPE | 制造商:NXP 功能描述:PCA9550 Series 2-Bit I2C-Bus LED Driver w/ Programmable Blink Rates - TSSOP - 8 |
| PCA9550DP118 | 制造商:Rochester Electronics LLC 功能描述: 制造商:NXP 功能描述: 制造商:NXP Semiconductors 功能描述: |
| PCA9550DP-T | 功能描述:LED照明驱动器 2-BIT I2C FM OD LED BLK RST 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 |
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