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參數(shù)資料
| 型號： | MAX1617AMEE+T |
| 廠商： | Maxim Integrated |
| 文件頁數(shù)： | 14/20頁 |
| 文件大?。?/td> | 292K |
| 描述： | IC REMOTE/LOCAL TEMP SNSR 16QSOP |
| 產(chǎn)品培訓模塊： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 標準包裝： | 2,500 |
| 功能： | 溫度計，恒溫計 |
| 傳感器類型： | 內(nèi)部和外部 |
| 感應溫度： | -55°C ~ 125°C，外部傳感器 |
| 精確度： | ±3°C（最小值） |
| 拓撲： | ADC，比較器，多路復用器，寄存器庫 |
| 輸出類型： | I²C?/SMBus? |
| 輸出警報： | 是 |
| 輸出風扇： | 無 |
| 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： | 16-SSOP（0.154"，3.90mm 寬） |
| 供應商設備封裝： | 16-QSOP |
| 包裝： | 帶卷 (TR) |
14
Remote/Local Temperature Sensor
with SMBus Serial Interface
MAX1617A
Maxim Integrated
The address pin states are checked at POR and SPOR
only, and the address data stays latched to reduce qui-
escent supply current due to the bias current needed
for high-Z state detection.
The MAX1617A also responds to the SMBus Alert
Response slave address (see the Alert Response
Address section).
POR and UVLO
The MAX1617A has a volatile memory. To prevent ambig-
uous power-supply conditions from corrupting the data in
memory and causing erratic behavior, a POR voltage
detector monitors V
CC
and clears the memory if V
CC
falls
below 1.7V (typical, see Electrical Characteristics table).
When power is first applied and V
CC
rises above 1.75V
(typical), the logic blocks begin operating, although reads
and writes at V
CC
levels below 3V are not recommended.
A second V
CC
comparator, the ADC UVLO comparator,
prevents the ADC from converting until there is sufficient
headroom (V
CC
= 2.8V typical).
The SPOR software POR command can force a power-on
reset of the MAX1617A registers via the serial interface.
Use the SEND BYTE protocol with COMMAND = FCh.
This is most commonly used to reconfigure the slave
address of the MAX1617A on the fly, where external
hardware has forced new states at the ADD0 and ADD1
address pins prior to the software POR. The new address
takes effect less than 100祍 after the SPOR transmission
stop condition.
Power-Up Defaults:
" Interrupt latch is cleared.
" Address select pins are sampled.
" ADC begins auto-converting at a 0.25Hz rate.
" Command byte is set to 00h to facilitate quick
remote Receive Byte queries.
" T
HIGH
and T
LOW
registers are set to max and min
limits, respectively.
Table 8. RLTS and RRTE Temp Register Update Timing Chart
n/a (0.25Hz)
NEW CONVERSION RATE
(CHANGED VIA WRITE TO
WCRW)
Power-on reset
Auto-Convert
OPERATING MODE
CONVERSION INITIATED BY:
156ms max
TIME UNTIL RLTS AND RRTE
ARE UPDATED
156ms max
n/a
1-shot command, while idling
between automatic conversions
Auto-Convert
When current conversion is
complete (1-shot is ignored)
20sec
n/a
0.0625Hz
Rate timer
Auto-Convert
1-shot command that occurs
during a conversion
Auto-Convert
10sec
5sec
0.125Hz
0.25Hz
Rate timer
Auto-Convert
2.5sec
1.25sec
0.5Hz
1Hz
Rate timer
Auto-Convert
Rate timer
Auto-Convert
Rate timer
Auto-Convert
625ms
312.5ms
2Hz
4Hz
Rate timer
Auto-Convert
237.5ms
156ms
8Hz
n/a
STBY pin
Hardware Standby
Rate timer
Auto-Convert
Rate timer
Auto-Convert
156ms
156ms
n/a
n/a
1-shot command
Software Standby
RUN/STOP bit
Software Standby
Table 9. Slave Address Decoding (ADD0
and ADD1)
Note: High-Z means that the pin is left unconnected.
0011 001
High-Z
GND
0011 000
ADDRESS
0101 001
GND
High-Z
0011 010
V
CC
GND
0101 011
V
CC
High-Z
0101 010
1001 101
High-Z
V
CC
1001 100
GND
GND
GND
V
CC
High-Z
High-Z
1001 110
V
CC
V
CC
ADD0
ADD1
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