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參數(shù)資料
| 型號： | MAX6471TA24BD3 |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類： | 基準電壓源/電流源 |
| 英文描述： | Triple Voltage Monitors, POR, 2 kbit EEPROM Memory, and Single/Dual DCP; Temperature Range: -40°C to 85°C; Package: 16-SOIC |
| 中文描述： | FIXED/ADJUSTABLE POSITIVE LDO REGULATOR, DSO8 |
| 封裝： | 3 X 3 MM, 0.80 MM HEIGHT, MO-229WEEC, TDFN-8 |
| 文件頁數(shù)： | 1/13頁 |
| 文件大小： | 261K |
| 代理商： | MAX6471TA24BD3 |
General Description
The MAX6443–MAX6452 low-current microprocessor
reset circuits feature single or dual manual reset inputs
with an extended 6.72s setup period. Because of the
extended setup period, short switch closures (nuisance
resets) are ignored.
On all devices, the reset output asserts when any of the
monitored supply voltages drops below its specified
threshold. The reset output remains asserted for the
reset timeout period (210ms typ) after all monitored
supplies exceed their reset thresholds. The reset output
is one-shot pulse asserted for the reset timeout period
(140ms min) when selected manual reset input(s) are
held low for an extended setup timeout period of 6.72s.
These devices ignore manual reset transitions of less
than 6.72s (typ).
The MAX6443–MAX6448 are single fixed-voltage P
supervisors. The MAX6443/MAX6444 have a single
extended manual reset input. The MAX6445/MAX6446
have two extended manual reset inputs. The MAX6447/
MAX6448 have one extended and one immediate manual
reset input.
The MAX6449–MAX6452 have one fixed-threshold P
supervisor and one adjustable-threshold P supervisor.
The MAX6449/MAX6450 have two delayed manual
reset inputs. The MAX6451/MAX6452 have one delayed
and one immediate manual reset input.
The MAX6443–MAX6452 have an active-low RESET
with push-pull or open-drain output logic options. These
devices, offered in small SOT packages, are fully guar-
anteed over the extended temperature range (-40°C to
+85°C).
Applications
Set-Top Boxes
Consumer Electronics
DVD Players
Modems
MP3 Players
Industrial Equipment
Automotive
Medical Devices
Features
o Single- or Dual-Supply Voltage Monitors
o Precision Factory-Set Reset Thresholds from
1.6V to 4.6V
o Adjustable Threshold to Monitor Voltages Down
to 0.63V (MAX6449–MAX6452)
o Single or Dual Manual Reset Inputs with Extended
6.72s Setup Period
o Optional Short Setup Time Manual Reset Input
(MAX6447/MAX6448 and MAX6451/MAX6452)
o Immune to Short Voltage Transients
o Low 6A Supply Current
o Guaranteed Valid Reset Down to VCC = 1.0V
o Active-Low RESET (Push-Pull or Open-Drain)
Outputs
o 140ms (min) Reset Timeout Period
o Small SOT143 and SOT23 Packages
MAX6443–MAX6452
P Reset Circuits with Long Manual Reset
Setup Period
________________________________________________________________ Maxim Integrated Products
1
VCC
MR1
RESET
GND
MAX6443
MAX6444
SOT143
TOP VIEW
4
3
1
2
Pin Configurations
Ordering Information
19-2656; Rev 1; 1/03
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.
PART
TEMP RANGE
PIN-PACKAGE
MAX6443 US_ _L -T
-40°C to +85°C
4 SOT143-4
MAX6444 US_ _L -T
-40°C to +85°C
4 SOT143-4
Note: The “_ _ ” is a placeholder for the threshold voltage level
of the devices. A desired threshold level is set by the two-num-
ber suffix found in Table 1. All devices are available in tape-
and-reel only. There is a 2500-piece minimum order increment
for standard versions (Table 2). Sample stock is typically held
on standard versions only. Nonstandard versions require a
minimum order increment of 10,000 pieces. Contact factory for
availability.
Pin Configurations continued at end of data sheet.
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| MAX6471TA24BD3-T | 300mA LDO Linear Regulators with Internal Microprocessor Reset Circuit |
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| MAX6471TA25AD1 | 300mA LDO Linear Regulators with Internal Microprocessor Reset Circuit |
| MAX6471TA25BD3-T | Dual Voltage Monitor with Intergrated CPU Supervisor |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX6471TA24BD3+T | 功能描述:低壓差穩(wěn)壓器 - LDO RoHS:否 制造商:Texas Instruments 最大輸入電壓:36 V 輸出電壓:1.4 V to 20.5 V 回動電壓（最大值）:307 mV 輸出電流:1 A 負載調(diào)節(jié):0.3 % 輸出端數(shù)量: 輸出類型:Fixed 最大工作溫度:+ 125 C 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-20 |
| MAX6471TA24BD3-T | 功能描述:低壓差穩(wěn)壓器 - LDO 300mA LDO Linear Regulators with Internal Microprocessor Reset Circuit RoHS:否 制造商:Texas Instruments 最大輸入電壓:36 V 輸出電壓:1.4 V to 20.5 V 回動電壓（最大值）:307 mV 輸出電流:1 A 負載調(diào)節(jié):0.3 % 輸出端數(shù)量: 輸出類型:Fixed 最大工作溫度:+ 125 C 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-20 |
| MAX6471TA24BD4+T | 功能描述:低壓差穩(wěn)壓器 - LDO RoHS:否 制造商:Texas Instruments 最大輸入電壓:36 V 輸出電壓:1.4 V to 20.5 V 回動電壓（最大值）:307 mV 輸出電流:1 A 負載調(diào)節(jié):0.3 % 輸出端數(shù)量: 輸出類型:Fixed 最大工作溫度:+ 125 C 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-20 |
| MAX6471TA24BD4-T | 功能描述:低壓差穩(wěn)壓器 - LDO 300mA LDO Linear Regulators with Internal Microprocessor Reset Circuit RoHS:否 制造商:Texas Instruments 最大輸入電壓:36 V 輸出電壓:1.4 V to 20.5 V 回動電壓（最大值）:307 mV 輸出電流:1 A 負載調(diào)節(jié):0.3 % 輸出端數(shù)量: 輸出類型:Fixed 最大工作溫度:+ 125 C 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-20 |
| MAX6471TA25AD1+T | 功能描述:低壓差穩(wěn)壓器 - LDO RoHS:否 制造商:Texas Instruments 最大輸入電壓:36 V 輸出電壓:1.4 V to 20.5 V 回動電壓（最大值）:307 mV 輸出電流:1 A 負載調(diào)節(jié):0.3 % 輸出端數(shù)量: 輸出類型:Fixed 最大工作溫度:+ 125 C 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-20 |
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