参数资料
| 型号： | AD5100YRQZ-0 |
| 厂商： | Analog Devices Inc |
| 文件页数： | 26/36页 |
| 文件大小： | 0K |
| 描述： | IC VOLTAGE MONITOR |
| 标准包装： | 98 |
| 类型： | 系统管理器 |
| 监视电压数目： | 4 |
| 输出： | 推挽式，图腾柱 |
| 复位： | 低有效 |
| 复位超时： | 标准为 60 µs |
| 电压 - 阀值： | 可调节/可选择 |
| 工作温度： | -40°C ~ 125°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 16-SSOP（0.154"，3.90mm 宽） |
| 供应商设备封装： | 16-QSOP |
| 包装： | 管件 |
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AD5100
I 2 C SERIAL INTERFACE
Control of the AD5100 is via an I 2 C-compatible serial bus. The
AD5100 is connected to this bus as a slave device (the AD5100
has no master capabilities).
The 2-wire serial bus protocol operates as follows:
SCL
The serial input register clock pin shifts in one bit at a time
on positive clock edges. An external 2.2 kΩ to 10 kΩ pull-up
resistor is needed. The pull-up resistor should be tied to V 3MON ,
1.
2.
3.
The master initiates data transfer by establishing a start
condition, which occurs when SDA goes from high to low
while SCL is high. The following byte is the slave address
byte, which consists of the 7-bit slave address followed by
an R/W bit that determines whether data is read from or
written to the slave device
Data is transmitted over the serial bus in sequences of nine
clock pulses (eight data bits followed by an acknowledge
bit). The transitions on the SDA line must occur during
the low period of SCL and remain stable during the high
period of SCL.
When all data bits have been read or written, a stop
condition is established by the master. A stop condition is
defined as a low-to-high transition on the SDA line while
SCL is high. In write mode, the master pulls the SDA line
high during the 10 th clock pulse to establish a stop condi-
tion. In the read mode, the master issues a no acknowledge
for the ninth clock pulse (that is, the SDA line remains
high). The master then brings the SDA line low before the
provided V 3MON is sub-5 V.
SDA
The serial data input/output pin shifts in one bit at a time on
positive clock edges, with the MSB loaded first. An external
2.2 kΩ to 10 kΩ pull-up resistor is needed. The pull-up resistor
should be tied to V 3MON , provided V 3MON is sub-5 V.
AD0
The AD5100 has a 7-bit slave address. The six MSBs are 010111,
and the LSB is determined by the state of the AD0 pin. When the
I 2 C slave address pin, AD0, is low, the 7-bit AD5100 slave address
is 0101110. When AD0 is high, the 7-bit AD5100 slave address
is 0101111 (pulled up to 3.3 V maximum).
The AD0 pin allows the user to connect two AD5100 devices
to the same I 2 C bus . Table 13 and Figure 20 show an example
of two AD5100 devices operating on the same serial bus
independently.
Table 13. Slave Address Decoding Scheme
10 th clock pulse and high during the 10 th clock pulse to
establish a stop condition.
For the AD5100, write operations contain either one or two
AD0 Programming Bit
0
1
AD0 Device Pin
0V
3.3 V max
Device Addressed
0x2E (U1)
0x2F (U2)
bytes, while read operations contain one byte. The AD5100
makes use of an address pointer register. This address pointer
5V
sets up one of the other registers for the second byte of the write
operation or for a subsequent read operation. Table 12 shows
the structure of the address pointer register. Bits [6:0] signify
Rp
Rp
SDA
the address of the register that is to be written to or read from.
Bit 7 is a reserved bit and should be 0 for normal write/read
MASTER
SCL
operations.
Table 12. Address Pointer Register Structure
SDA SCL
AD0
AD5100
3.3V MAX
5V
SDA SCL
AD0
AD5100
Bit Number
Function
U1
U2
7
6
5
4
3
2
1
0
Reserved
Address Bit 6
Address Bit 5
Address Bit 4
Address Bit 3
Address Bit 2
Address Bit 1
Address Bit 0 (LSB)
Rev. A | Page 26 of 36
Figure 20. Two AD5100 Devices on One Bus
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相关代理商/技术参数 |
参数描述 |
|---|---|
| AD5100YRQZ-1REEL | 制造商:Analog Devices 功能描述:System Management 16-Pin QSOP T/R 制造商:Analog Devices 功能描述:PROGRAMMABLE VOLTAGE MONITOR - Tape and Reel |
| AD5100YRQZ-1RL7 | 功能描述:IC SUPERVISOR MULTI VOLT 16QSOP RoHS:是 类别:集成电路 (IC) >> PMIC - 监控器 系列:- 标准包装:1 系列:- 类型:简单复位/加电复位 监视电压数目:1 输出:开路漏极或开路集电极 复位:高有效 复位超时:- 电压 - 阀值:1.8V 工作温度:-40°C ~ 125°C 安装类型:表面贴装 封装/外壳:6-TSOP（0.059"，1.50mm 宽）5 引线 供应商设备封装:5-TSOP 包装:剪切带 (CT) 其它名称:NCP301HSN18T1GOSCT |
| AD5100YRQZ-RL7 | 制造商:Analog Devices 功能描述:SYS MANAGEMENT 16QSOP - Tape and Reel |
| AD510JH | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| AD510JH/+ | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
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