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参数资料
| 型号： | MAX6814XK+T |
| 厂商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分类： | 模拟信号调理 |
| 英文描述： | 5-Pin Watchdog Timer Circuit |
| 中文描述： | SPECIALTY ANALOG CIRCUIT, PDSO5 |
| 封装： | SC-70, 5 PIN |
| 文件页数： | 2/6页 |
| 文件大小： | 631K |
| 代理商： | MAX6814XK+T |
MAX6814
5-Pin Watchdog Timer Circuit
2
_______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS
(VCC = +2.25V to +5.5V, TA = TMIN to TMAX, TA = -40°C to +85°C, unless otherwise noted. Typical values are at TA = +25°C.)
(Note 1)
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
VCC ........................................................................-0.3V to +6.0V
All Other Pins..............................................-0.3V to (VCC + 0.3V)
Input Current, WDI ..............................................................20mA
Output Current, WDO..........................................................20mA
Continuous Power Dissipation (TA = +70°C)
5-Pin SC70 (derate 3.1mW/°C above +70°C) ...............247mW
Operating Temperature Range ...........................-40°C to +85°C
Storage Temperature Range .............................-65°C to +150°C
Junction Temperature ......................................................+150°C
Lead Temperature (soldering, 10s) .................................+300°C
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
Operating Voltage Range
VCC
TA = 0°C to +70°C
2.25
5.5
V
VCC = 5.5V
10
24
Supply Current
ISUPPLY
WDI unconnected
VCC = 2.5V
4
12
A
Undervoltage Lockout Threshold
UVLO
(Note 2)
2.19
V
Watchdog Pulse Period
tPP
(Note 3)
140
200
280
ms
VOH
ISOURCE = 30A, VCC = 2.3V
0.8 VCC
WDO Output Voltage
VOL
ISINK = 1.2mA, VCC = 2.1V
0.3
V
WDO Output Short-Circuit Current
ISOURCE
VCC = 3.6V (Note 4)
400
A
Watchdog Timeout Period
tWD
1.12
1.60
2.40
s
WDI Pulse Width
tWDI
VIL = 0.4V, VIH = 0.8 VCC
50
ns
VIL
0.3 VCC
WDI Input Voltage (Note 5)
VIH
0.7 VCC
V
WDI = VCC, time average
120
160
WDI Input Current (Note 6)
WDI = 0, time average
-20
-15
A
Note 1: Overtemperature limits are guaranteed by design, production testing performed at +25°C only.
Note 2: WDO is low when VCC falls below the undervoltage threshold. When VCC rises above the undervoltage threshold, WDO goes
high after the watchdog pulse period.
Note 3: Watchdog pulse period occurs when the watchdog times out or after VCC rises above the undervoltage threshold.
Note 4: The WDO short-circuit current is the maximum pullup current when WDO is driven low.
Note 5: WDI is internally serviced within the watchdog period if WDI is left unconnected.
Note 6: The WDI input current is specified as the average input current when the WDI input is driven high or low. The WDI input is
designed to drive a three-stated output device with a 10A maximum leakage current and a maximum capacitive load of
200pF. This output device must be able to source and sink at least 200A when active.
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相关代理商/技术参数 |
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|---|---|
| MAX6815LEUS | 制造商:Rochester Electronics LLC 功能描述: 制造商:Maxim Integrated Products 功能描述: |
| MAX6815LEUS-T | 制造商:Rochester Electronics LLC 功能描述: 制造商:Maxim Integrated Products 功能描述: |
| MAX6815MEUS | 制造商:Rochester Electronics LLC 功能描述: 制造商:Maxim Integrated Products 功能描述: |
| MAX6815MEUS-T | 制造商:Rochester Electronics LLC 功能描述: 制造商:Maxim Integrated Products 功能描述: |
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