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参数资料
| 型号： | MAX6802UR48D3-T |
| 厂商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分类： | 电源管理 |
| 英文描述： | 3-Pin, Low-Power µP Reset Circuits |
| 中文描述： | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO3 |
| 封装： | SOT-23, 3 PIN |
| 文件页数： | 4/7页 |
| 文件大小： | 147K |
| 代理商： | MAX6802UR48D3-T |
MAX6800/MAX6801/MAX6802
3-Pin, Low-Power
P Reset Circuits
4
_______________________________________________________________________________________
VCC
GND
MAX6802
RESET
VCC
GND
RESET
MOTOROLA
68HCXX
P
100k
Applications Information
Interfacing to Ps with Bidirectional
Reset Pins
Since the RESET output on the MAX6802 is open-drain,
this device interfaces easily with Ps that have bidirec-
tional reset pins, such as the Motorola 68HC11.
Connecting the P supervisor’s RESET output directly
to the microcontroller’s (C’s) RESET pin with a single
pullup resistor allows either device to assert reset
(Figure 1).
Negative-Going VCC Transients
In addition to issuing a reset to the P during power-up,
power-down, and brownout conditions, these devices are
relatively immune to short-duration, negative-going VCC
transients (glitches). The Typical Operating Characteristics
show the Maximum Transient Duration vs. Reset
Comparator Overdrive graph. The graph shows the maxi-
mum pulse width that a negative-going VCC transient may
typically have without issuing a reset signal. As the ampli-
tude of the transient increases, the maximum allowable
pulse width decreases.
Figure 1. Interfacing to Ps with Bidirectional Reset Pins
TOP VIEW
1
2
3 VCC
RESET (RESET)
MAX6800
MAX6801
MAX6802
SOT23-3
( ) ARE FOR MAX6800
GND
Pin Configuration
Figure 2. Ensuring Reset Valid Down to VCC = 0
VCC
GND
MAX6801
RESET
100k
(a)
VCC
GND
MAX6800
RESET
100k
*
(b)
*ASSUMES HIGH-Z RESET INPUT TO THE
P
MAX6801
VCC
RESET
GND
VCC
GND
P
Typical Operating Circuit
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX6803US26D1 | 制造商:Maxim Integrated Products 功能描述:4-PIN LOW-POWER MICROPROCESSOR RES - Rail/Tube |
| MAX6803US26D1+ | 制造商:Maxim Integrated Products 功能描述:PROCESSOR SUPERVISOR 2.63V 5UA 4PIN SOT-143 - Rail/Tube |
| MAX6803US26D1+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 |
| MAX6803US26D1-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 |
| MAX6803US26D2 | 制造商:Maxim Integrated Products 功能描述:4-PIN LOW-POWER MICROPROCESSOR RES - Rail/Tube |
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