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参数资料
| 型号： | MAX6467US31D7+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 6/9页 |
| 文件大小： | 0K |
| 描述： | IC MPU/RESET CIRC 3.075V SOT143 |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 2,500 |
| 类型： | 简单复位/加电复位 |
| 监视电压数目： | 1 |
| 输出： | 开路漏极或开路集电极 |
| 复位： | 低有效 |
| 复位超时： | 最小为 1.2 s |
| 电压 - 阀值： | 3.075V |
| 工作温度： | -40°C ~ 125°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | TO-253-4，TO-253AA |
| 供应商设备封装： | SOT-143-4 |
| 包装： | 带卷 (TR) |
Microprocessor Supervisory Reset Circuits
with Edge-Triggered, One-Shot Manual Reset
Reset Timeout Delay*
RESET TIMEOUT SUFFIX
D3
D7
V CC RESET TIMEOUT PERIOD
(min/max) (ms)
150/300
1200/2400
MR TIMEOUT PERIOD
(min/max) (ms)
150/300
150/300
MR RISING DEBOUNCE PERIOD
(min/max) (ms)
150/300
150/300
* Additional reset timeout options may be available. Contact factory for availability.
Applications Information
Falling V CC Transients
In addition to issuing a reset to the μP during power-up,
power-down, and brownout conditions, the MAX6467/
MAX6468 are relatively immune to short-duration falling
V CC transients (glitches). The Typical Operating
Characteristics section shows the Maximum Transient
Duration vs. V CC Overdrive for which the MAX6467/
MAX6468 do not generate a reset pulse. This graph was
generated using a falling pulse applied to V CC starting
above the actual reset threshold and ending below the
threshold by the magnitude indicated (V CC Overdrive).
The graph indicates the typical maximum pulse width a
falling V CC transient can have without initiating a reset
pulse. As the magnitude of the transient increases (goes
V CC
farther below the reset threshold), the maximum allowable
pulse width decreases. A 0.1μF bypass capacitor from
V CC to GND provides additional transient immunity.
Ensuring a Valid RESET Output Down
to V CC = 0V
The MAX6467/MAX6468 guarantee proper operation
down to V CC = +1V. In applications that require valid
reset levels down to V CC = 0V, a pulldown resistor to
active-low outputs (MAX6468 only, Figure 3) ensures
that RESET remains valid while the RESET output can
no longer sink current. This scheme does not work with
the open-drain outputs of the MAX6467. Ensure that the
resistor value used does not overload the RESET output
when V CC is above the reset threshold. For most appli-
cations, use 100k ? to 1M ? .
MR
V CC
1.5k ?
MAX6467
MAX6468
V CC
MR ONE-SHOT/
DEBOUNCE
MAX6468
RESET
R1
100k ?
RESET
TIMEOUT
PERIOD
RESET
OUTPUT
RESET
GND
V CC
1.23V
Figure 3. RESET Valid to V CC = 0V
GND
Chip Information
Figure 2. Functional Diagram
TRANSISTOR COUNT: 748
PROCESS: BiCMOS
6
_______________________________________________________________________________________
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX6467US32D3 | 制造商:Maxim Integrated Products 功能描述:MICROPROCESSOR SUPERVISORY RESET CI - Rail/Tube |
| MAX6467US32D3+ | 制造商:Maxim Integrated Products 功能描述:PROCESSOR SUPERVISOR 3.2V 7UA 4PIN SOT-143 - Rail/Tube |
| MAX6467US32D3+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 |
| MAX6467US32D3-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 |
| MAX6467US32D7 | 制造商:Maxim Integrated Products 功能描述:MICROPROCESSOR SUPERVISORY RESET CI - Rail/Tube |
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