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參數資料
型號: MAX6649MUA/V+
廠商: Maxim Integrated
文件頁數: 10/16頁
文件大小: 194K
描述: IC SENSOR REMOTE SMBUS 8UMAX
產品培訓模塊: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
標準包裝: 50
功能: 溫度監控系統(傳感器)
傳感器類型: 內部和外部
感應溫度: -55°C ~ 125°C,外部傳感器
精確度: ±3°C 本地(最大),±3.2°C 遠程(最大)
拓撲: ADC,多路復用器,寄存器庫
輸出類型: I²C?/SMBus?
輸出警報:
輸出風扇:
電源電壓: 3 V ~ 5.5 V
工作溫度: -55°C ~ 125°C
安裝類型: 表面貼裝
封裝/外殼: 8-TSSOP,8-MSOP(0.118",3.00mm 寬)
供應商設備封裝: 8-uMAX
包裝: 管件
+145癈 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 bytes 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 dont care
bits, which should be set to zero. The conversion rate tol-
erance is ?5% 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癈
Read local (internal) temperature
RRTE
01h
0000 0000
0癈
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癈
Read local (internal) ALERT high limit
RLLI
06h
0000 0000
0癈
Read local (internal) ALERT low limit
0101 1111
+95癈
Read remote (external) ALERT high limit (MAX6646/MAX6647)
RRHI
07h
0101 0101
+85癈
Read remote (external) ALERT high limit (MAX6649)
RRLS
08h
0000 0000
0癈
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癈
Read remote (external) extended temperature
RIET
11h
0000 0000
0癈
Read local (internal) extended temperature
0111 1101
+125癈
Read/write remote (external) OVERT limit (MAX6646/MAX6647)
RWOE
19h
0101 0101
+85癈
Read/write remote (external) OVERT limit (MAX6649)
RWOI
20h
0101 0101
+85癈
Read/write local (internal) OVERT limit
HYS
21h
0000 1010
10癈
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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參數描述
MAX6649YMUA+ 功能描述:板上安裝溫度傳感器 145C SMBus-Comp Remote/Local Sensor RoHS:否 制造商:Omron Electronics 輸出類型:Digital 配置: 準確性:+/- 1.5 C, +/- 3 C 溫度閾值: 數字輸出 - 總線接口:2-Wire, I2C, SMBus 電源電壓-最大:5.5 V 電源電壓-最小:4.5 V 最大工作溫度:+ 50 C 最小工作溫度:0 C 關閉: 安裝風格: 封裝 / 箱體: 設備功能:Temperature and Humidity Sensor
MAX6649YMUA+T 功能描述:板上安裝溫度傳感器 145C SMBus-Comp Remote/Local Sensor RoHS:否 制造商:Omron Electronics 輸出類型:Digital 配置: 準確性:+/- 1.5 C, +/- 3 C 溫度閾值: 數字輸出 - 總線接口:2-Wire, I2C, SMBus 電源電壓-最大:5.5 V 電源電壓-最小:4.5 V 最大工作溫度:+ 50 C 最小工作溫度:0 C 關閉: 安裝風格: 封裝 / 箱體: 設備功能:Temperature and Humidity Sensor
MAX664C/D 功能描述:低壓差穩壓器 - LDO RoHS:否 制造商:Texas Instruments 最大輸入電壓:36 V 輸出電壓:1.4 V to 20.5 V 回動電壓(最大值):307 mV 輸出電流:1 A 負載調節:0.3 % 輸出端數量: 輸出類型:Fixed 最大工作溫度:+ 125 C 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-20
MAX664CJA 功能描述:低壓差穩壓器 - LDO RoHS:否 制造商:Texas Instruments 最大輸入電壓:36 V 輸出電壓:1.4 V to 20.5 V 回動電壓(最大值):307 mV 輸出電流:1 A 負載調節:0.3 % 輸出端數量: 輸出類型:Fixed 最大工作溫度:+ 125 C 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-20
MAX664CPA 功能描述:低壓差穩壓器 - LDO RoHS:否 制造商:Texas Instruments 最大輸入電壓:36 V 輸出電壓:1.4 V to 20.5 V 回動電壓(最大值):307 mV 輸出電流:1 A 負載調節:0.3 % 輸出端數量: 輸出類型:Fixed 最大工作溫度:+ 125 C 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-20
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