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参数资料
| 型号： | MAX690RCSA-T |
| 厂商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分类： | 电源管理 |
| 英文描述： | 3.0V/3.3V Microprocessor Supervisory Circuits |
| 中文描述： | 1-CHANNEL POWER SUPPLY MANAGEMENT CKT, PDSO8 |
| 封装： | 0.150 INCH, PLASTIC, SO-8 |
| 文件页数： | 2/12页 |
| 文件大小： | 281K |
| 代理商： | MAX690RCSA-T |
MAX690T/S/R,
704T/S/R,
802T/S/R,
804–806T/S/R
3.0V/3.3V Microprocessor Supervisory Circuits
10
______________________________________________________________________________________
MAX690T/S/R
MAX704T/S/R
MAX802T/S/R
MAX804T/S/R
MAX805T/S/R
MAX806T/S/R
VCC
GND
0V
TO
μP
VL = R1 VPFT
PFI
PFO
R1
R2
R3
*OPTIONAL
C1*
VIN
VTRIP
VIN
PFO
0V
VH
VL
R1 + R2
R2
VH = (VPFT + VPFH) (R1)
VTRIP = VPFT
+
R1
1
+
R2
1
R3
1
–
R3
VCC
VPFT = 1.237V
VPFH = 10mV
WHERE
VCC
GND
TO
μP
PFI
PFO
R1
R2
R3
*OPTIONAL
C1*
VIN
R1 + R2
R2
VH = R1 (VPFT + VPFH)
VTRIP = VPFT
+
R1
1
+
R2
1
R3
1
–
R3
(VCC - VD)
VPFT = 1.237V
VPFH = 10mV
VD = DIODE FORWARD VOLTAGE DROP
VL = VTRIP
WHERE
MAX690T/S/R
MAX704T/S/R
MAX802T/S/R
MAX804T/S/R
MAX805T/S/R
MAX806T/S/R
0V
PFO
0V
VH
VIN
VTRIP
b
a
(
)
(
)
(
)
(
)
+
R1
1
+
R2
1
R3
1
(
)
MAX690T/S/R
MAX704T/S/R
MAX802T/S/R
MAX804T/S/R
MAX805T/S/R
MAX806T/S/R
VCC
GND
PFI
PFO
R1
R2
V-
0V
V-
PFO
VTRIP
VL
VPFT = 1.237V
VPFH = 10mV
WHERE
3.0V OR 3.3V
VTRIP = R2
+
R1
1
)
(
R2
1
–
R1
VCC
(VPFT + VPFH)
VL = R2
+
R1
1
)
(
R2
1
–
R1
VCC
(VPFT)
NOTE: VTRIP IS NEGATIVE
VCC
MAX690T/S/R
MAX704T/S/R
MAX802T/S/R
MAX804T/S/R
MAX805T/S/R
MAX806T/S/R
VCC
GND
PFI
PFO
R1
R2
PFO
VTRIP
VH
* MAX704T/S/R,
MAX806T/S/R ONLY
3.0V OR 3.3V
VIN
VTRIP =
)
(
R2
R1 + R2
VPFT
VH = (VPFT + VPFH)
VCC
VIN
MR
*
b
a
)
(
R2
R1 + R2
Figure 4. a) Adding Additional Hysteresis to the Power-Fail Comparator
b) Shifting the Additional Hysteresis above VPFT
Figure 5. Using the Power-Fail Comparator to Monitor an Additional Power Supply
相关PDF资料 |
PDF描述 |
|---|---|
| MAX690RESA-T | 3.0V/3.3V Microprocessor Supervisory Circuits |
| MAX690SCSA-T | 3.0V/3.3V Microprocessor Supervisory Circuits |
| MAX690SESA-T | 3.0V/3.3V Microprocessor Supervisory Circuits |
| MAX690TCSA-T | 3.0V/3.3V Microprocessor Supervisory Circuits |
| MAX690TESA-T | 3.0V/3.3V Microprocessor Supervisory Circuits |
相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX690REPA | 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 |
| MAX690REPA+ | 功能描述:监控电路 MPU Supervisor 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 |
| MAX690RESA | 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 |
| MAX690RESA+ | 功能描述:监控电路 MPU Supervisor 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 |
| MAX690RESA+T | 功能描述:监控电路 MPU Supervisor 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 |
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