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参数资料
| 型号： | MAX6761TAZGD0+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 14/20页 |
| 文件大小： | 0K |
| 描述： | IC DETECT VOLT WINDOW 8-TDFN |
| 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： | 推挽式，图腾柱 |
| 复位： | 高有效 |
| 复位超时： | 标准为 20 µs |
| 电压 - 阀值： | 1.2V，2.5V |
| 工作温度： | -40°C ~ 125°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 8-WDFN 裸露焊盘 |
| 供应商设备封装： | 8-TDFN-EP（3x3） |
| 包装： | 带卷 (TR) |
Low-Power, Single/Dual-Voltage Window
Detectors
V+
Overvoltage Latch Control Input
(OVLATCH)
R1
UVIN
MAX6763/MAX6764
UV
The MAX6760/MAX6761/MAX6762 provide an overvolt-
age latch control input (OVLATCH). Drive OVLATCH
high to latch the overvoltage output for any V CC or
V CC2 overvoltage condition. Drive OVLATCH low to
clear the latch after overvoltage conditions have been
removed. The latch is transparent when OVLATCH is
UV TH
UV MONITOR
connected to GND. OVLATCH is a high impedance
R2
V CC
INTERNAL
REFERENCE
0.5V
OV TH
GND
input. Use external pullup or pulldown.
Reset, Undervoltage, and Overvoltage
Outputs (RESET, RESET , UV , UV, OV)
RESET, RESET , UV , UV, and OV outputs assert when
OV
the monitored supply is below the selected UV TH
R3
OVIN
OV MONITOR
threshold or above the selected OV TH threshold. The
reset output deasserts after the specified timeout peri-
od when the monitored supply rises above the UV TH
threshold or drops below the OV TH threshold. The
OVERVOLTAGE ASSERTS WHEN
UNDERVOLTAGE ASSERTS WHEN
V+ x R3
R1 + R2 + R3
V+ x (R2 + R3)
R1 + R2 + R3
> 0.5V
< 0.5V
push-pull versions are referenced to V CC .
The MAX6760/MAX6761/MAX6762 monitor both V CC
and V CC2 . An under/overvoltage condition on either
voltage supply asserts the corresponding output.
Figure 6. Setting the Under/Overvoltage Window
Choose R2 to have a resistance of up to 500k Ω .
Calculate R1 by:
R1 = ((V + - 0.4255V) x R2) / 0.4255V
The MAX6763/MAX6764 provide inputs to a window
detector allowing the programming of the threshold
voltage to within V CC (see Figure 6).
Choose R1, R2, and R3 such that:
RESET and UV are guaranteed to be in the correct
logic state when V CC or V CC2 > 1V.
MR
t D-MR
(V+ / (R1 + R2 + R3)) ≥ 1μA
SET
RESET, UV
t MR_P
The MAX6754–MAX6762 allow the setting of the window
voltage range of the voltage detector. Connect SET to
GND to set a ± 5% window. Connect SET to V CC for a
±10% window. Bias SET to V CC / 2 for a ±15% window.
Manual Reset ( MR )
The MAX6754–MAX6762 include an active-low manual
reset input. Drive MR low to assert a reset output
(MAX6754/MAX6755/MAX6756) or an undervoltage
output (MAX6757/MAX6758/MAX6759). The output
remains asserted for the specified propagation delay
Figure 7a. Manual Reset/ Reset Timing Diagram
V CC
t D-UV
time (see Figure 7) after MR goes high. MR is internally
pulled to V CC with a 26k Ω resistor.
RESET, UV
t RP
(RESET IS THE COMPLEMENT OF RESET)
Figure 7b. V CC /RESET, UV Timing Diagram
14
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX6761TAZGD3+T | 功能描述:监控电路 Dual Low Power Window Detector 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 |
| MAX6761TAZGD3-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 |
| MAX6761TAZID0+T | 功能描述:监控电路 Dual Low Power Window Detector 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 |
| MAX6761TAZID0-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 |
| MAX6761TAZID3+T | 功能描述:监控电路 Dual Low Power Window Detector 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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