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参数资料
| 型号： | MAX6803US44D2-T |
| 厂商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分类： | 电源管理 |
| 英文描述： | 4-Pin, Low-Power µP Reset Circuits with Manual Reset |
| 中文描述： | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO4 |
| 封装： | SOT-143, 4 PIN |
| 文件页数： | 1/8页 |
| 文件大小： | 155K |
| 代理商： | MAX6803US44D2-T |
General Description
The MAX6803/MAX6804/MAX6805 microprocessor (P)
supervisory circuits monitor the power supplies in 2.85V
to 5.0V P and digital systems. They increase circuit
reliability and reduce cost by eliminating external com-
ponents and adjustments. They also feature a
debounced manual reset input.
These devices perform a single function: they assert a
reset signal whenever the VCC supply voltage declines
below a preset threshold or whenever manual reset is
asserted. Reset remains asserted for a preset timeout
period after VCC has risen above the reset threshold or
after manual reset is deasserted. The only difference
among the three devices is their output. The MAX6804
(push/pull) and MAX6805 (open-drain) have an active-
low RESET output, while the MAX6803 (push/pull) has
an active-high RESET output. The MAX6803/MAX6804
are guaranteed to be in the correct state for VCC down
to 0.7V. The MAX6805 is guaranteed to be in the cor-
rect state for VCC down to 1.0V.
The reset comparator in these ICs is designed to ignore
fast transients on VCC. Reset thresholds are factory-
trimmable between 2.63V and 4.80V, in approximately
100mV increments. These devices are available with a
1ms min, 20ms min, or 100ms min reset timeout period.
Ideal for space-critical applications, the MAX6803/
MAX6804/MAX6805 come packaged in a 4-pin
SOT143. For a lower threshold voltage version, see the
MAX6335/MAX6336/MAX6337.
Applications
Computers
Controllers
Intelligent Instruments
Critical P/C Power Monitoring
Portable/Battery-Powered Equipment
Automotive
Features
o Ultra-Low 0.7V Operating Supply Voltage
o Low 4.0A Supply Current
o Precision Monitoring of 2.85V to 5.0V Power-
Supply Voltages
o Reset Thresholds Available from 2.63V to 4.80V,
in Approximately 100mV Increments
o Debounced Manual Reset Input
o Fully Specified over Temperature
o Three Power-On Reset Timeout Periods Available
(1ms min, 20ms min, 100ms min)
o Low Cost
o Three Available Output Structures: Push/Pull
RESET, Push/Pull RESET, Open-Drain RESET
o Guaranteed RESET/RESET Valid to VCC = 0.7V
(MAX6803/MAX6804)
o Power-Supply Transient Immunity
o No External Components Required
o 4-Pin SOT143 Package
o Pin Compatible with MAX811/MAX812 and
MAX6314/MAX6315
MAX6803/MAX6804/MAX6805
4-Pin, Low-Power
P Reset Circuits with Manual Reset
________________________________________________________________ Maxim Integrated Products
1
19-1946; Rev 1; 2/01
PART*
MAX6803US_ _D_-T
MAX6804US_ _D_-T
MAX6805US_ _D_-T
-40°C to +125°C
TEMP. RANGE
PIN-PACKAGE
4 SOT143
Ordering Information
*These devices are available in factory-set VCC reset thresh-
olds from 2.63V to 4.80V, in approximately 0.1V increments.
Choose the desired reset threshold suffix from Table 1 and
insert it in the blanks following “US” in the part number.
Factory-programmed reset timeout periods are also available.
Insert the number corresponding to the desired nominal reset
timeout period (1 = 1ms min, 2 = 20ms min, 3 = 100ms min) in
the blank following “D” in the part number. There are 15 stan-
dard versions with a required order increment of 2500 pieces.
Sample stock is generally held on the standard versions only
(see Selector Guide). Contact the factory for availability of non-
standard versions (required order increment is 10,000 pieces).
All devices available in tape-and-reel only.
Typical Operating Circuit and Pin Configuration appear
at end of data sheet.
Selector Guide appears at end of data sheet.
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.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX6803US44D3 | 制造商:Maxim Integrated Products 功能描述:4-PIN LOW-POWER MICROPROCESSOR RES - Cut Tape Product |
| MAX6803US44D3+ | 制造商:Maxim Integrated Products 功能描述:PROCESSOR SUPERVISOR 4.38V 5UA 4PIN SOT-143 - Rail/Tube |
| MAX6803US44D3+T | 功能描述:监控电路 Single uPower 4-Pin Reset Circuit RoHS:否 制造商:STMicroelectronics 监测电压数: 监测电压: 欠电压阈值: 过电压阈值: 输出类型:Active Low, Open Drain 人工复位:Resettable 监视器:No Watchdog 电池备用开关:No Backup 上电复位延迟（典型值）:10 s 电源电压-最大:5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:UDFN-6 封装:Reel |
| MAX6803US44D3-T | 功能描述:监控电路 RoHS:否 制造商:STMicroelectronics 监测电压数: 监测电压: 欠电压阈值: 过电压阈值: 输出类型:Active Low, Open Drain 人工复位:Resettable 监视器:No Watchdog 电池备用开关:No Backup 上电复位延迟（典型值）:10 s 电源电压-最大:5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:UDFN-6 封装:Reel |
| MAX6803US45D1 | 制造商:Maxim Integrated Products 功能描述:4-PIN LOW-POWER MICROPROCESSOR RES - Rail/Tube |
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