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參數(shù)資料
| 型號(hào)： | MAX6728AKAWED2-T |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類： | 電源管理 |
| 英文描述： | 1-CHANNEL POWER SUPPLY MANAGEMENT CKT, PDSO8 |
| 封裝： | MO-178BA, SOT-23, 8 PIN |
| 文件頁數(shù)： | 1/20頁 |
| 文件大?。?/td> | 693K |
| 代理商： | MAX6728AKAWED2-T |
General Description
The MAX6715A–MAX6729A are ultra-low-voltage micro-
processor (P) supervisory circuits designed to monitor two
or three system power-supply voltages. These devices
assert a system reset if any monitored supply falls below its
factory-trimmed or adjustable threshold and maintain reset
for a minimum timeout period after all supplies rise above
their thresholds. The integrated dual/triple supervisory cir-
cuits significantly improve system reliability and reduce size
compared to separate ICs or discrete components.
These devices monitor primary supply voltages (VCC1)
from 1.8V to 5.0V and secondary supply voltages (VCC2)
from 0.9V to 3.3V with factory-trimmed reset threshold
voltage options (see the Reset Voltage Threshold Suffix
Guide). An externally adjustable RSTIN input option
allows customers to monitor a third supply voltage down
to 0.62V. These devices are guaranteed to be in the cor-
rect reset output logic state when either VCC1 or VCC2
remains greater than 0.8V.
A variety of push-pull or open-drain reset outputs along
with watchdog input, manual reset input, and power-fail
input/output features are available (see the Selector
Guide). Select reset timeout periods from 1.1ms to
1120ms (min) (see the Reset Timeout Period Suffix
Guide). The MAX6715A–MAX6729A are available in small
5-, 6-, and 8-pin SOT23 packages and operate over the
-40°C to +125°C temperature range.
Applications
Features
VCC1 (Primary Supply) Reset Threshold Voltages
from 1.58V to 4.63V
VCC2 (Secondary Supply) Reset Threshold
Voltages from 0.79V to 3.08V
Externally Adjustable RSTIN Threshold for
Auxiliary/Triple-Voltage Monitoring
(0.62V Internal Reference)
Watchdog Timer Option
35s (min) Long Startup Period
1.12s (min) Normal Timeout Period
Manual Reset Input Option
Power-Fail Input/Power-Fail Output Option
(Push-Pull and Open-Drain Active-Low)
Guaranteed Reset Valid Down to VCC1 or
VCC2 = 0.8V
Reset Output Logic Options
Immune to Short VCC Transients
Low Supply Current 14A (typ) at 3.6V
Watchdog Disable Feature
Small 5-, 6-, and 8-Pin SOT23 Packages
MAX6715A–MAX6729A
Dual/Triple, Ultra-Low-Voltage, SOT23 P
Supervisory Circuits
________________________________________________________________ Maxim Integrated Products
1
Ordering Information
IN
OUT2
OUT1
DC/DC
CONVERTER
UNREGULATED
DC
R1
R2
VCC1VCC2
RSTIN/PFI
MR
RST
WDI
PFO
MAX67_ _
PUSHBUTTON
SWITCH
I/O
SUPPLY
CORE
SUPPLY
RESET
I/O
NMI
P
1.8V
0.9V
MAX6715A-
MAX6729A
Typical Operating Circuit
19-0536; Rev 1; 7/06
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.
Pin Configurations and Selector Guide appear at end of
data sheet.
PART
TEMP
RANGE
PIN-
PACKAGE
PKG
CODE
MAX6715AUT_ _D_+T
-40°C +125°C
6 SOT23-6
U6-1
MAX6716AUT_ _D_+T
-40°C +125°C
6 SOT23-6
U6-1
MAX6717AUK_ _D_+T
-40°C +125°C
5 SOT23-5
U5-1
MAX6718AUK_ _D_+T
-40°C +125°C
5 SOT23-5
U5-1
MAX6719AUT_ _D_+T
-40°C +125°C
6 SOT23-6
U6-1
MAX6720AUT_ _D_+T
-40°C +125°C
6 SOT23-6
U6-1
Note: The first “_ _” are placeholders for the threshold voltage
levels of the devices. Desired threshold levels are set by the part
number suffix found in the Reset Voltage Threshold Suffix Guide.
The “_” after the D is a placeholder for the reset timeout delay
time. Desired delay time is set using the timeout period suffix
found in the Reset Timeout Period Suffix Guide. For example, the
MAX6716AUTLTD3-T is a dual-voltage supervisor VTH1 =
4.625V, VTH2 = 3.075V, and 210ms (typ) timeout period.
Ordering Information continued at end of data sheet.
+Denotes lead-free package.
Multivoltage Systems
Telecom/Networking
Equipment
Computers/Servers
Portable/Battery-
Operated Equipment
Industrial Equipment
Printers/Fax Machines
Set-Top Boxes
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX6728AKAWGD3+ | 制造商:Maxim Integrated Products 功能描述:PROCESSOR SUPERVISOR 1.665V/1.11V 15UA 8PIN SOT-23 - Cut Tape Product |
| MAX6728AKAWGD3+T | 功能描述:監(jiān)控電路 Dual uPower Supervisor RoHS:否 制造商:STMicroelectronics 監(jiān)測電壓數(shù): 監(jiān)測電壓: 欠電壓閾值: 過電壓閾值: 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 |
| MAX6728AKAYDD3+ | 制造商:Maxim Integrated Products 功能描述:PROCESSOR SUPERVISOR 2.188V/0.788V 15UA 8PIN SOT-23 - Cut Tape Product |
| MAX6728AKAYDD3+T | 功能描述:監(jiān)控電路 Dual uPower Supervisor RoHS:否 制造商:STMicroelectronics 監(jiān)測電壓數(shù): 監(jiān)測電壓: 欠電壓閾值: 過電壓閾值: 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 |
| MAX6728AKAYHD3+T | 功能描述:監(jiān)控電路 Dual uPower Supervisor RoHS:否 制造商:STMicroelectronics 監(jiān)測電壓數(shù): 監(jiān)測電壓: 欠電壓閾值: 過電壓閾值: 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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