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参数资料
| 型号： | CAT9532WI-T1 |
| 厂商： | ON Semiconductor |
| 文件页数： | 7/15页 |
| 文件大小： | 0K |
| 描述： | IC LED DRIVER LINEAR 24-SOIC |
| 标准包装： | 1 |
| 拓扑： | 开路漏极，PWM |
| 输出数： | 16 |
| 内部驱动器： | 是 |
| 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： | 24-SOIC（0.295"，7.50mm 宽） |
| 供应商设备封装： | 24-SOIC |
| 包装： | 标准包装 |
| 工作温度： | -40°C ~ 85°C |
| 产品目录页面： | 805 (CN2011-ZH PDF) |
| 其它名称： | CAT9532WI-T1DKR |
CAT9532
Acknowledge
After a successful data transfer, each receiving device is
required to generate an acknowledge. The acknowledging
device pulls down the SDA line during the ninth clock cycle,
signaling that it received the 8 bits of data. The SDA line
remains stable LOW during the HIGH period of the
acknowledge related clock pulse (Figure 7).
The CAT9532 responds with an acknowledge after
receiving a START condition and its slave address. If the
device has been selected along with a write operation, it
responds with an acknowledge after receiving each 8 ? bit
byte.
When the CAT9532 begins a READ mode it transmits 8
bits of data, releases the SDA line, and monitors the line for
an acknowledge. Once it receives this acknowledge, the
CAT9532 will continue to transmit data. If no acknowledge
is sent by the Master, the device terminates data transmission
and waits for a STOP condition. The master must then issue
Table 6. INTERNAL REGISTERS SELECTION
a stop condition to return the CAT9532 to the standby power
mode and place the device in a known state.
Registers and Bus Transactions
After the successful acknowledgement of the slave
address, the bus master will send a command byte to the
CAT9532 which will be stored in the Control Register. The
format of the Control Register is shown in Figure 8.
The Control Register acts as a pointer to determine which
register will be written or read. The four least significant
bits, B0, B1, B2, B3, are used to select which internal
register is accessed, according to the Table 6.
If the auto increment flag (AI) is set, the four least
significant bits of the Control Register are automatically
incremented after a read or write operation. This allows the
user to access the CAT9532 internal registers sequentially.
The content of these bits will rollover to “0000” after the last
register is accessed.
B3
0
0
0
0
0
0
0
0
1
1
B2
0
0
0
0
1
1
1
1
0
0
B1
0
0
1
1
0
0
1
1
0
0
B0
0
1
0
1
0
1
0
1
0
1
Register Name
INPUT0
INPUT1
PSC0
PWM0
PSC1
PWM1
LS0
LS1
LS2
LS3
Type
READ
READ
READ/WRITE
READ/WRITE
READ/WRITE
READ/WRITE
READ/WRITE
READ/WRITE
READ/WRITE
READ/WRITE
Register Function
Input Register 0
Input Register 1
Frequency Prescaler 0
PWM Register 0
Frequency Prescaler 1
PWM Register 1
LED 0 ? 3 Selector
LED 4 ? 7 Selector
LED 8 ? 11 Selector
LED 12 ? 15 Selector
SCL FROM
MASTER
1
8
9
DATA OUTPUT
FROM TRANSMITTER
DATA OUTPUT
FROM RECEIVER
START
Figure 7. Acknowledge Timing
ACKNOWLEDGE
0
0
0
AI
B3
B2
B1
B0
RESET STATE: 00h
REGISTER ADDRESS
AUTO ? INCREMENT FLAG
Figure 8. Control Register
http://onsemi.com
7
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相关代理商/技术参数 |
参数描述 |
|---|---|
| CAT9532WI-T1 | 制造商:ON Semiconductor 功能描述:IC PROGRAMMABLE LED DIMMER SOIC-24 |
| CAT9532WI-T1-CUT TAPE | 制造商:ON 功能描述:CAT9532 Series 25 mA 5.5 V 400 kHz I2C 16-bit Programmable LED Dimmer - SOIC-24 |
| CAT9532YI | 功能描述:LED照明驱动器 16-Bit Prog LED Dimmer w/Interface 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 |
| CAT9532YI-T2 | 功能描述:LED照明驱动器 I2C/SMBus Expander w/LED Dimming 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 |
| CAT9534HV4I-G | 制造商:Rochester Electronics LLC 功能描述: 制造商:Catalyst Semiconductor 功能描述: |
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