参数资料
型号: PCA9533D/02,118
厂商: NXP Semiconductors
文件页数: 12/24页
文件大小: 0K
描述: IC LED DRIVER RGB 8-SOIC
标准包装: 2,500
拓扑: 开路漏极,PWM
输出数: 4
内部驱动器:
类型 - 主要: 背光,LED 闪烁器
类型 - 次要: RGB
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: 568-4003-ND - DEMO BOARD LED DIMMER
568-3512-ND - DEMO BOARD UART TO I2C
其它名称: 935274436118
PCA9533D/02-T
PCA9533D/02-T-ND
NXP Semiconductors
PCA9533
4-bit I 2 C-bus LED dimmer
8.2 Programming example
The following example will show how to set LED0 and LED1 off. It will set LED2 to blink at
1 Hz at a 50 % duty cycle. LED3 will be set to be dimmed at 25 % of their maximum
brightness (duty cycle = 25 %). PCA9533/01 is used in this example.
Table 11.
Programming PCA9533
Program sequence
START
PCA9533 address
PSC0 subaddress + Auto-Increment
Set prescaler PSC0 to achieve a period of 1 second:
PSC0 + 1
Blink period = 1 = ------------------------
152
PSC0 = 151
Set PWM0 duty cycle to 50 %:
PWM0
----------------- = 0.5
256
PWM0 = 128
Set prescaler PCS1 to dim at maximum frequency:
Blink period = max
PSC1 = 0
Set PWM1 output duty cycle to 25 %:
PWM1
----------------- = 0.25
256
PWM1 = 64
Set LED0 on, LED1 off; LED2 set to blink at PSC0, PWM0; LED3 set to blink at
PSC1, PWM1
STOP
9. Limiting values
Table 12. Limiting values
In accordance with the Absolute Maximum Rating System (IEC 60134).
I 2 C-bus
S
C4h
11h
97h
80h
00h
40h
E1h
P
Symbol
V DD
V I/O
I O(LEDn)
I SS
P tot
T stg
T amb
Parameter
supply voltage
voltage on an input/output pin
output current on pin LEDn
ground supply current
total power dissipation
storage temperature
ambient temperature
Conditions
operating
Min
? 0.5
V SS ? 0.5
-
-
-
? 65
? 40
Max
+6.0
5.5
25
100
400
+150
+85
Unit
V
V
mA
mA
mW
° C
° C
PCA9533_3
? NXP B.V. 2009. All rights reserved.
Product data sheet
Rev. 03 — 27 April 2009
12 of 24
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