- 您现在的位置：买卖IC网 > PDF目录13663 > MAX6391KA23+T (Maxim Integrated Products)IC SUPERVISOR MPU DL SOT23-8 PDF资料下载
参数资料
| 型号： | MAX6391KA23+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 1/9页 |
| 文件大小： | 0K |
| 描述： | IC SUPERVISOR MPU DL SOT23-8 |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 2,500 |
| 类型： | 多压监控器 |
| 监视电压数目： | 2 |
| 输出： | 开路漏极或开路集电极 |
| 复位： | 低有效 |
| 复位超时： | 140 ms/可调最小值 |
| 电压 - 阀值： | 2.32V，可调 |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | SOT-23-8 |
| 供应商设备封装： | SOT-23-8 |
| 包装： | 带卷 (TR) |
19-2210; Rev 2; 12/05
Dual-Voltage μP Supervisory Circuits
with Sequenced Reset Outputs
General Description
The MAX6391/MAX6392 microprocessor (μP) supervisory
circuits provide sequenced logic reset outputs for multi-
component or dual-voltage systems. Each device can
monitor two supply voltages and time-sequence two reset
outputs to control the order in which system components
are turned on and off. The MAX6391/MAX6392 increase
system reliability and reduce circuit complexity and cost
compared to separate ICs or discrete components.
The MAX6391/MAX6392 monitor V CC as the master
reset supply. Both RESET1 and RESET2 are asserted
whenever V CC drops below the selected factory-fixed
reset threshold voltage. RESET1 remains asserted as
long as V CC is below the threshold and deasserts
140ms (min) after V CC exceeds the thresholds.
RESET IN2 is monitored as the secondary reset supply
and is adjustable with an external resistive-divider net-
work. RESET2 is asserted whenever either V CC or
RESET IN2 is below the selected thresholds. RESET2
remains asserted 140ms (min) or a capacitor-
adjustable time period after V CC and RESET IN2
exceed their thresholds. RESET2 is always deasserted
after RESET1 during system power-up and is always
asserted before RESET1 during power-down.
The MAX6391 includes two internal pullup resistors for
RESET1 and RESET2 (the open-drain outputs can be
Features
? Preset VCC Reset Threshold Voltages from 1.58V
to 4.63V (master supply)
? Customer-Adjustable RESET IN2 to Monitor
Voltages Down to 625mV (secondary supply)
? Fixed (140ms min) R E S E T 1 Timeout
? Fixed (140ms min) or Customer-Adjustable
R E S E T 2 Timeout Period
? Guaranteed Reset Valid to V CC = 1V
? Active-Low Open-Drain Outputs or Push-
Pull/Open-Drain Combination
? Internal Open-Drain Pullup Resistors (for external
V OH voltage connections)
? Manual Reset Input (MAX6392 only)
? Immune to Short Negative V CC Transients
? 15μA Typical Supply Current
? Few External Components
? Small 8-Pin SOT23 Package
Ordering Information
externally connected to the desired pullup voltages).
The MAX6392 includes an active-low manual reset
input ( MR ) that asserts both RESET1 (push-pull) and
RESET2 (open drain).
PART*
MAX6391 KA_ _-T
MAX6392 KA_ _-T
TEMP RANGE
-40 ° C to +85 ° C
-40 ° C to +85 ° C
PIN-PACKAGE
SOT23-8
SOT23-8
The MAX6391/MAX6392 are available in small 8-pin
SOT23 packages and are specified over the -40°C to
+85°C extended temperature range.
Applications
Computers
Controllers
Critical μP Power Monitoring
Set-Top Boxes
Printers
* Insert the desired suffix (see Selector Guide) into the blanks to
complete the part number. The MAX6391/MAX6392 require a
2.5k minimum order increment and are available in tape-and-
reel only. Samples are typically available for standard versions
(see Selector Guide for standard versions). Contact factory for
availability.
Devices are available in both leaded and lead-free packaging.
Specify lead-free by replacing “-T” with “+T” when ordering.
Pin Configurations
TOP VIEW
Servers/Workstations
RESET IN2 1
8
R1
Industrial Equipment
Multivoltage Monitoring
V CC
CSRT
2
3
MAX6391
7
6
RESET1
R2
GND 4
SOT23-8
5
RESET2
Typical Operating Circuit appears at end of data sheet.
Pin Configurations continued at end of data sheet.
________________________________________________________________ Maxim Integrated Products
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.
1
相关PDF资料 |
PDF描述 |
|---|---|
| 10PK2200MEFCT810X16 | CAP ALUM 2200UF 10V 20% RADIAL |
| RBM24DRMT | CONN EDGECARD 48POS .156 WW |
| 10PK2200MEFC10X16 | CAP ALUM 2200UF 10V 20% RADIAL |
| 16ZLJ680M10X12.5 | CAP ALUM 680UF 16V 20% RADIAL |
| UWF1E4R7MCL1GB | CAP ALUM 4.7UF 25V 20% SMD |
相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX6391KA26 | 制造商:Maxim Integrated Products 功能描述:DUAL-VOLTAGE RESET CIRCUITS WITH SE - Rail/Tube |
| MAX6391KA26+ | 制造商:Maxim Integrated Products 功能描述:PROCESSOR SUPERVISOR 2.63V/0.625V 15UA 8PIN SOT-23 - Rail/Tube |
| MAX6391KA26+T | 功能描述:监控电路 Dual uPower 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 |
| MAX6391KA26-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 |
| MAX6391KA29 | 制造商:Maxim Integrated Products 功能描述:DUAL-VOLTAGE RESET CIRCUITS WITH SE - Cut Tape Product |
发布紧急采购，3分钟左右您将得到回复。