參數(shù)資料
型號: MAX646CPD
廠商: Maxim Integrated Products, Inc.
英文描述: DC-to-DC Voltage Converter
中文描述: 型DC - DC電壓轉(zhuǎn)換器
文件頁數(shù): 6/13頁
文件大?。?/td> 261K
代理商: MAX646CPD
MAX6443–MAX6452
P Reset Circuits with Long Manual Reset
Setup Period
2
_______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
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.
All Voltages Referenced to GND
VCC ..........................................................................-0.3V to +6V
Open-Drain RESET ..................................................-0.3V to +6V
Push-Pull RESET ........................................-0.3V to (VCC + 0.3V)
MR1, MR2, MR2, RSTIN ..........................................-0.3V to +6V
Input Current, All Pins.......................................................±20mA
Continuous Power Dissipation (TA = +70°C)
4-Pin SOT143-4 (derate 4.0mW/°C above +70°C) .....320mW
5-Pin SOT23-5 (derate 7.1mW/°C above +70°C) .......571mW
6-Pin SOT23-6 (derate 8.7mW/°C above +70°C) .......696mW
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
ELECTRICAL CHARACTERISTICS
(VCC = 1.0V to 5.5V, TA = -40°C to +85°C, unless otherwise specified. Typical values are at TA = +25°C.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
Operating Voltage Range
VCC
1.0
5.5
V
VCC = 5.5V, no load
7
20
VCC Supply Current
ICC
VCC = 3.6V, no load
6
16
A
46
4.50
4.63
4.75
44
4.25
4.38
4.50
31
3.00
3.08
3.15
29
2.85
2.93
3.00
26
2.55
2.63
2.70
23
2.25
2.32
2.38
22
2.12
2.19
2.25
17
1.62
1.67
1.71
VCC Reset Threshold
VTH
16
1.52
1.58
1.62
V
Reset Threshold Tempco
60
ppm/°C
Reset Threshold Hysteresis
2
× VTH
mV
TA = 0°C to +85°C
0.615
0.630
0.645
RSTIN Threshold
VTH-RSTIN
MAX6449–MAX6452
TA = -40°C to +85°C
0.610
0.650
V
RSTIN Threshold Hysteresis
VHYST
MAX6449–MAX6452
2.5
mV
RSTIN Input Current
IRSTIN
MAX6449–MAX6452
-25
+25
nA
RSTIN to Reset Output Delay
MAX6449–MAX6452, VRSTIN falling at
1mV/s
15
s
Reset Timeout Period
tRP
140
210
280
ms
VCC to RESET Output Delay
tRD
VCC falling at 1mV/s
20
s
MR1 Minimum Setup Period
Pulse Width
tMR
4.48
6.72
8.96
s
MR1 + MR2 Minimum Setup
Period Pulse Width
MAX6445/MAX6446/MAX6449/MAX6450
4.48
6.72
8.96
s
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