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参数资料
| 型号： | MAX6468US23D7+T |
| 厂商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分类： | 电源管理 |
| 英文描述： | Microprocessor Supervisory Reset Circuits with Edge-Triggered, One-Shot Manual Reset |
| 中文描述： | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO4 |
| 封装： | LEAD FREE, TO-253, SOT-143, 4 PIN |
| 文件页数： | 2/12页 |
| 文件大小： | 379K |
| 代理商： | MAX6468US23D7+T |
QuickView - MAX6467, MAX6468 Microprocessor Supervisory Reset Circuits with Edge-Triggered, One-Shot Manual Reset
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MAX6467, MAX6468
Microprocessor Supervisory Reset Circuits with Edge-Triggered, One-Shot Manual Reset
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Status
Active: In Production.
Description
FULL DATA SHEET (PDF, 324kB)
The MAX6467/MAX6468 microprocessor (P) supervisory circuits monitor
single power-supply voltages from +1.8V to +5.0V and assert a reset if the
supply voltage drops below its preset threshold. An edge-triggered, one-
shot manual reset function ensures that the P enters the reset mode for a
fixed timeout period only, even in the event of a continuously asserted
manual reset. The MAX6467/MAX6468 significantly improve system reliability compared to traditional manual
reset supervisory circuits.
A variety of factory-trimmed threshold options accommodate different supply voltages and tolerances, eliminating
external components. The factory-set thresholds range from +1.575V to +4.625V to monitor +5.0V, +3.3V,
+3.0V, +2.5V, and +1.8V supplies with various tolerances. Reset timeout periods of 150ms (min) and 1200ms
(min) are available to accommodate different P platforms.
A single, active-low RESET output asserts when VCC drops below its threshold or if the edge-triggered active-low
MR asserts low. Active-low RESET remains low for the reset timeout period after VCC rises above its threshold and
for a fixed, one-shot timeout period after a manual reset input falling edge. Active-low RESET remains valid as
long as VCC remains above +1V. Open-drain (MAX6467) and push-pull (MAX6468) output options provide
additional flexibility in the system design.
The MAX6467/MAX6468 are offered in the space-saving 4-pin SOT143 package and the ultra-small 4-pin SC70
package and are specified over the automotive (-40°C to +125°C) temperature range.
Key Features
Applications/Uses
q
Precision Factory-Set Reset Threshold Voltages for +5.0V,
+3.3V, +3.0V, +2.5V, and +1.8V Supplies
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Edge-Triggered Manual Reset Input with One-Shot Pulsed
Reset Output
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Two Reset Timeout Period Options (150ms or 1200ms min)
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Immune to Short Voltage Transients
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Low Supply Current (3A at VCC = +1.8V)
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Active-Low RESET Valid to VCC = +1V
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Active-Low Open-Drain and Push-Pull Active-Low RESET
Output Options
q
-40°C to +125°C Operating Temperature Range
q
Small 4-Pin SC70 and SOT143 Packages
q
No External Components Required
q
Pin Compatible with MAX811, MAX6315, MAX6384, and
MAX6386
q
q
Cell Phones/PDAs
q
q
DSL Modems
q
Embedded Control Systems
q
q
Industrial Equipment
q
Medical Devices
q
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Portable Battery-Powered Equipment
http://www.maxim-ic.com/quick_view2.cfm/qv_pk/3521/t/ (1 of 3) [01-Feb-2010 8:15:31 AM]
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PDF描述 |
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX6468US24D3 | 制造商:Maxim Integrated Products 功能描述:MICROPROCESSOR SUPERVISORY RESET CI - Rail/Tube |
| MAX6468US24D3+ | 制造商:Maxim Integrated Products 功能描述:PROCESSOR SUPERVISOR 2.4V 7UA 4PIN SOT-143 - Rail/Tube |
| MAX6468US24D3+T | 功能描述:监控电路 MPU Supervisory 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 |
| MAX6468US24D3-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 |
| MAX6468US24D7 | 制造商:Maxim Integrated Products 功能描述:MICROPROCESSOR SUPERVISORY RESET CI - Rail/Tube |
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