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參數(shù)資料
| 型號： | MAX1755BAUT-T |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類： | 模擬信號調(diào)理 |
| 英文描述： | SOT23 Local Temperature Comparators with SMBus Serial Interface |
| 中文描述： | SPECIALTY ANALOG CIRCUIT, PDSO6 |
| 封裝： | SOT-23, 6 PIN |
| 文件頁數(shù)： | 8/11頁 |
| 文件大?。?/td> | 294K |
| 代理商： | MAX1755BAUT-T |
M
POR and UVLO
The MAX1755/MAX1756 have volatile memory. To pre-
vent 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 1.5V (typ, see the
Electrical Characteristics
).
When power is first applied and V
CC
rises above 1.5V
(typ), the logic blocks begin operating, although the
address decoder is not enabled until V
CC
> UVLO volt-
age. The UVLO comparator prevents the DAC and tem-
perature comparator from operating until there is suffi-
cient headroom (V
CC
≥
2.2V typ).
Power-Up Defaults:
T
MAX
register is set to +100
°
C.
ALERT
and
OVERT
are reset to High-Z state.
OVERT
polarity is set to active-low (MAX1755 only).
ALERT
low-going hysteresis interrupts are masked
(MAX1756 only).
Status byte is cleared.
SOT23 Local Temperature Comparators
with SMBus Serial Interface
8
_______________________________________________________________________________________
Figure 4.
OVERT
,
ALERT
Response
T THRESHOLD = 65
°
C
MAX1755
MAX1756
T
HYST
= 4
°
C
OVERT
61
°
C
T THRESHOLD = 80
°
C
72
°
C
T
HYST
= 8
°
C
ALERT
READ/WRITE
Table 2. Status Register Bit Assignments
BIT
NAME
POR STATE
FUNCTION
7
(MSB)
OVER
0
This bit indicates that the T
MAX
threshold was crossed. Send a Send Byte or
Receive Byte to clear this bit.
Not masked (MAX1755)
0 (MAX1756)
6
UNDER
This bit indicates that the T
HYST
threshold was crossed. Send a Send Byte or
Receive Byte to clear this bit. See Table 1.
5
OUTPUT
Not latched
MAX1755: This bit exactly follows the current state of the
OVERT
pin
(self-clearing). MAX1756: This bit is reserved for future use (returns 0).
4, 3, 2
RFU
N/A
Reserved for future use.
1
DEFAULT
0
This bit indicates that the DAC is at the default value; POR threshold was
crossed. Send a Send Byte to clear this bit.
0
ERROR
1
This bit indicates that the conversion is inaccurate; UVLO threshold was
crossed. Send a Send Byte and bring V
CC
back up to a valid operating
range to clear this bit.
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相關(guān)代理商/技術(shù)參數(shù) |
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| MAX1756AAUT | 制造商:Maxim Integrated Products 功能描述:- Cut Tape Product |
| MAX1756AAUT-T | 制造商:Maxim Integrated Products 功能描述:SOT23 LOCAL TEMPERATURE COMPARATOR WITH SMBUS - Tape and Reel |
| MAX1756BAUT | 制造商:Maxim Integrated Products 功能描述:- Cut Tape Product |
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| MAX1756BEUT | 制造商:Maxim Integrated Products 功能描述:- Rail/Tube |
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