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參數(shù)資料
| 型號(hào)： | MAX644ESD |
| 廠商： | Maxim Integrated Products, Inc. |
| 元件分類： | 線性穩(wěn)壓 |
| 英文描述： | Dual Regulator-Synchronous Rectified Buck PWM and Linear Power Controller; Temperature Range: 0°C to 70°C; Package: 16-QFN T&R |
| 中文描述： | 型DC - DC電壓轉(zhuǎn)換器 |
| 文件頁(yè)數(shù)： | 6/13頁(yè) |
| 文件大?。?/td> | 261K |
| 代理商： | MAX644ESD |
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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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| MAX6451 | Dual Regulator-Synchronous Rectified Buck PWM and Linear Power Controller; Temperature Range: 0°C to 70°C; Package: 14-SOIC |
| MAX6452 | Dual Regulator-Synchronous Rectified Buck PWM and Linear Power Controller; Temperature Range: 0°C to 70°C; Package: 14-SOIC T&R |
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| MAX6450BTA16T+T | 功能描述:監(jiān)控電路 P Reset Circuits with Long Manual Reset Setup Period RoHS:否 制造商:STMicroelectronics 監(jiān)測(cè)電壓數(shù): 監(jiān)測(cè)電壓: 欠電壓閾值: 過(guò)電壓閾值: 輸出類型:Active Low, Open Drain 人工復(fù)位:Resettable 監(jiān)視器:No Watchdog 電池備用開關(guān):No Backup 上電復(fù)位延遲（典型值）:10 s 電源電壓-最大:5.5 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:UDFN-6 封裝:Reel |
| MAX6450TA16S+T | 制造商:Maxim from Components Direct 功能描述:MAXIM MAX6450TA16S+T PROCESSOR SUPERVISORS - Tape and Reel 制造商:Maxim 功能描述:Maxim MAX6450TA16S+T Processor Supervisors |
| MAX6450UT16L | 制造商:Maxim Integrated Products 功能描述:MICROPROCESSOR RESET CIRCUITS WITH - Rail/Tube |
| MAX6450UT16L+ | 制造商:Maxim Integrated Products 功能描述:PROCESSOR SUPERVISOR ADJV 7UA 6PIN SOT-23 - Rail/Tube |
| MAX6450UT16L+T | 功能描述:監(jiān)控電路 Dual uPower Reset Circuit RoHS:否 制造商:STMicroelectronics 監(jiān)測(cè)電壓數(shù): 監(jiān)測(cè)電壓: 欠電壓閾值: 過(guò)電壓閾值: 輸出類型:Active Low, Open Drain 人工復(fù)位:Resettable 監(jiān)視器:No Watchdog 電池備用開關(guān):No Backup 上電復(fù)位延遲（典型值）:10 s 電源電壓-最大:5.5 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:UDFN-6 封裝:Reel |
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