参数资料
型号: PCA9685PW,118
厂商: NXP Semiconductors
文件页数: 39/51页
文件大小: 0K
描述: IC LED DRIVER RGBA 28-TSSOP
标准包装: 2,500
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: 带卷 (TR)
工作温度: -40°C ~ 85°C
其它名称: 935285129118
PCA9685PW-T
PCA9685PW-T-ND
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13. Dynamic characteristics
Table 14.
Dynamic characteristics
Symbol
Parameter
Conditions
Standard-mode
Fast-mode I 2 C-bus
Fast-mode Plus Unit
I 2 C-bus
I 2 C-bus
Min
Max
Min
Max
Min
Max
f SCL
f EXTCLK
t BUF
SCL clock frequency
frequency on pin EXTCLK
bus free time between a STOP
[1]
0
DC
4.7
100
50
-
0
DC
1.3
400
50
-
0
DC
0.5
1000
50
-
kHz
MHz
μ s
and START condition
t HD;STA
hold time (repeated) START
4.0
-
0.6
-
0.26
-
μ s
condition
t SU;STA
set-up time for a repeated
4.7
-
0.6
-
0.26
-
μ s
START condition
t SU;STO
t HD;DAT
set-up time for STOP condition
data hold time
4.0
0
-
-
0.6
0
-
-
0.26
0
-
-
μ s
ns
t VD;ACK
t VD;DAT
t SU;DAT
t LOW
t HIGH
data valid acknowledge time
data valid time
data set-up time
LOW period of the SCL clock
HIGH period of the SCL clock
[2]
[3]
0.3
0.3
250
4.7
4.0
3.45
3.45
-
-
-
0.1
0.1
100
1.3
0.6
0.9
0.9
-
-
-
0.05
0.05
50
0.5
0.26
0.45
0.45
-
-
-
μ s
μ s
ns
μ s
μ s
t f
fall time of both SDA and SCL
[4][5]
-
300
20 + 0.1C b
[6]
300
-
120
ns
signals
t r
rise time of both SDA and SCL
-
1000
20 + 0.1C b [6]
300
-
120
ns
signals
t SP
pulse width of spikes that must
[7]
-
50
-
50
-
50
ns
be suppressed by the input filter
t PLZ
LOW to OFF-state propagation
OE to LEDn;
-
40
-
40
-
40
ns
delay
OUTNE[1:0] = 10 or 11
in MODE2 register
t PZL
OFF-state to LOW propagation
OE to LEDn;
-
60
-
60
-
60
ns
delay
OUTNE[1:0] = 10 or 11
in MODE2 register
t PHZ
HIGH to OFF-state propagation
OE to LEDn;
-
60
-
60
-
60
ns
delay
OUTNE[1:0] = 10 or 11
in MODE2 register
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