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参数资料
| 型号： | MAX6649YMUA+ |
| 厂商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分类： | 模拟信号调理 |
| 英文描述： | +145°C Precision SMBus-Compatible Remote/Local Sensors with Overtemperature Alarms |
| 中文描述： | SPECIALTY ANALOG CIRCUIT, DSO8 |
| 封装： | ROHS COMPLIANT, MO-187C-AA, MICRO MAX PACKAGE-8 |
| 文件页数： | 2/22页 |
| 文件大小： | 670K |
| 代理商： | MAX6649YMUA+ |
MAX6646/MAX6647/MAX6649
+145°C Precision SMBus-Compatible Remote/
Local Sensors with Overtemperature Alarms
10
______________________________________________________________________________________
Conversion Rate Byte
The conversion rate register (Table 8) programs the time
interval between conversions in free-running autonomous
mode (RUN = 0). This variable rate control can be used
to reduce the supply current in portable-equipment appli-
cations. The conversion rate byte’s POR state is 07h or
4Hz. The MAX6646/MAX6647/MAX6649 look only at the 3
LSBs of this register, so the upper 5 bits are “don’t care”
bits, which should be set to zero. The conversion rate tol-
erance is ±25% at any rate setting.
Valid A/D conversion results for both channels are avail-
able two total conversion times (250ms nominal, 312ms
maximum) after initiating a conversion, whether conver-
sion is initiated through the RUN bit, one-shot com-
mand, or initial power-up. Changing the conversion rate
can also affect the delay until new results are available.
REGISTER
ADDRESS
POR STATE
FUNCTION
RLTS
00h
0000 0000
0°C
Read local (internal) temperature
RRTE
01h
0000 0000
0°C
Read remote (external) temperature
RSL
02h
N/A
—
Read status byte
RCL
03h
0000 0000
—
Read configuration byte
RCRA
04h
0000 0111
—
Read conversion rate byte
RLHN
05h
0101 0101
+85°C
Read local (internal)
ALERT high limit
RLLI
06h
0000 0000
0°C
Read local (internal)
ALERT low limit
0101 1111
+95°C
Read remote (external)
ALERT high limit (MAX6646/MAX6647)
RRHI
07h
0101 0101
+85°C
Read remote (external)
ALERT high limit (MAX6649)
RRLS
08h
0000 0000
0°C
Read remote (external)
ALERT low limit
WCA
09h
N/A
—
Write configuration byte
WCRW
0Ah
N/A
—
Write conversion rate byte
WLHO
0Bh
N/A
—
Write local (internal)
ALERT high limit
WLLM
0Ch
N/A
—
Write local (internal)
ALERT low limit
WRHA
0Dh
N/A
—
Write remote (external)
ALERT high limit
WRLN
0Eh
N/A
—
Write remote (external)
ALERT low limit
OSHT
0Fh
N/A
—
One-shot
REET
10h
0000 0000
0°C
Read remote (external) extended temperature
RIET
11h
0000 0000
0°C
Read local (internal) extended temperature
0111 1101
+125°C
Read/write remote (external)
OVERT limit (MAX6646/MAX6647)
RWOE
19h
0101 0101
+85°C
Read/write remote (external)
OVERT limit (MAX6649)
RWOI
20h
0101 0101
+85°C
Read/write local (internal)
OVERT limit
HYS
21h
0000 1010
10°C
Overtemperature hysteresis
QUEUE
22h
1000 0110
—
Fault queue
—
FEh
0100 1101
—
Read manufacture ID
—
FFh
0101 1001
—
Read revision ID
Table 5. Command-Byte Bit Assignments
BIT
NAME
POR STATE
FUNCTION
7 (MSB)
MASK
0
Masks
ALERT interrupts when set to 1.
6
RUN
0
Standby mode control bit; if set to 1, standby mode is initiated.
5 to 0
RFU
0
Reserved.
Table 6. Configuration-Byte Bit Assignments (03h)
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX6649YMUA+ | 功能描述:板上安装温度传感器 145C SMBus-Comp Remote/Local Sensor RoHS:否 制造商:Omron Electronics 输出类型:Digital 配置: 准确性:+/- 1.5 C, +/- 3 C 温度阈值: 数字输出 - 总线接口:2-Wire, I2C, SMBus 电源电压-最大:5.5 V 电源电压-最小:4.5 V 最大工作温度:+ 50 C 最小工作温度:0 C 关闭: 安装风格: 封装 / 箱体: 设备功能:Temperature and Humidity Sensor |
| MAX6649YMUA+T | 功能描述:板上安装温度传感器 145C SMBus-Comp Remote/Local Sensor RoHS:否 制造商:Omron Electronics 输出类型:Digital 配置: 准确性:+/- 1.5 C, +/- 3 C 温度阈值: 数字输出 - 总线接口:2-Wire, I2C, SMBus 电源电压-最大:5.5 V 电源电压-最小:4.5 V 最大工作温度:+ 50 C 最小工作温度:0 C 关闭: 安装风格: 封装 / 箱体: 设备功能:Temperature and Humidity Sensor |
| MAX664C/D | 功能描述:低压差稳压器 - LDO RoHS:否 制造商:Texas Instruments 最大输入电压:36 V 输出电压:1.4 V to 20.5 V 回动电压（最大值）:307 mV 输出电流:1 A 负载调节:0.3 % 输出端数量: 输出类型:Fixed 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-20 |
| MAX664CJA | 功能描述:低压差稳压器 - LDO RoHS:否 制造商:Texas Instruments 最大输入电压:36 V 输出电压:1.4 V to 20.5 V 回动电压（最大值）:307 mV 输出电流:1 A 负载调节:0.3 % 输出端数量: 输出类型:Fixed 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-20 |
| MAX664CPA | 功能描述:低压差稳压器 - LDO RoHS:否 制造商:Texas Instruments 最大输入电压:36 V 输出电压:1.4 V to 20.5 V 回动电压（最大值）:307 mV 输出电流:1 A 负载调节:0.3 % 输出端数量: 输出类型:Fixed 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-20 |
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