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參數(shù)資料
| 型號(hào)： | MAX6845UKD4+T |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類： | 電源管理 |
| 英文描述： | Ultra-Low-Voltage µP Reset Circuits and Voltage Detectors |
| 中文描述： | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO5 |
| 封裝： | SOT-23, 5 PIN |
| 文件頁(yè)數(shù)： | 2/9頁(yè) |
| 文件大小： | 214K |
| 代理商： | MAX6845UKD4+T |
MAX6841–MAX6845
Ultra-Low-Voltage P Reset Circuits and
Voltage Detectors
2
_______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS
(VCC = +0.55V to +1.8V, 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.
Terminal Voltage (with respect to GND)
VCC .......................................................................-0.3V to +6V
MR, RESET IN, RESET (open-drain).........................-0.3V to +6V
Push-Pull RESET and RESET .....................-0.3V to (VCC + 0.3V)
Input Current (all pins) ........................................................20mA
Output Current (RESET, RESET).........................................20mA
Continuous Power Dissipation (TA = +70°C)
5-Pin SOT23 (derate 7.1mW/°C above +70°C)............571mW
Operating Temperature Range ...........................-40°C to +85°C
Junction Temperature ......................................................+150°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
MAX6843/MAX6845
0.55
1.80
Supply Voltage Range
VCC
MAX6841/MAX6842/MAX6844 (Note 2)
0.75
1.80
V
VCC = 0.9V, no load, reset not asserted
5.7
20
VCC = 1.5V, no load, reset not asserted
7.3
20
Supply Current
ICC
VCC = 1.8V, no load, reset not asserted
8.1
20
A
I
1.350
1.388
1.425
H
1.275
1.313
1.350
G
1.080
1.110
1.140
F
1.020
1.050
1.080
E
0.810
0.833
0.855
Reset Threshold
(VCC Falling)
VTH
D, TA = 0
°C to +85°C
0.765
0.788
0.810
V
RESET IN Threshold
VRSTIN
MAX6843/MAX6844/MAX6845 (Note 3)
181.2
187.4
191.5
mV
RESET IN Leakage Current
IRSTIN
-25
+25
nA
Reset Threshold Hysteresis
VHYS
0.75
%VTH
VCC or RESET IN to Reset Delay
VCC falling, step signal from (VTH + 10%)
to (VTH - 10%) within 1s
150
s
D0 (voltage detector)
0.15
D1
1
1.5
2
D2
20
30
40
D3
140
210
280
Reset Active Timeout Period
tRP
D4
1120
1680
2240
ms
VIL
0.3
× VCC
MR Input Voltage (Note 3)
VIH
0.7
× VCC
V
MR Minimum Input Pulse Width
MR driven from VCC to 0 (Note 3)
1
s
MR Glitch Rejection
MR driven from VCC to 0 (Note 3)
150
ns
MR to Reset Delay
MR driven from VCC to 0 (Note 3)
500
ns
MR Pullup Resistance to VCC
10
20
26
k
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