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参数资料
| 型号： | MAX6740XKVFD3+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 8/16页 |
| 文件大小： | 0K |
| 描述： | IC SUPERVISOR MPU LP SC70-5 |
| 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： | 3 |
| 输出： | 开路漏极或开路集电极 |
| 复位： | 低有效 |
| 复位超时： | 最小为 150 ms |
| 电压 - 阀值： | 1.05V，1.575V，可调 |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 6-TSSOP（5 引线），SC-88A，SOT-353 |
| 供应商设备封装： | SC-70-5 |
| 包装： | 带卷 (TR) |
Low-Power Dual-/Triple-Voltage SC70 μP
Supervisory Circuits
Pin Description
PIN
MAX6736 MAX6738 MAX6740 MAX6741 MAX6742
NAME
FUNCTION
MAX6737 MAX6739 MAX6743 MAX6744 MAX6745
Reset Output, Push-Pull or Open Drain Active Low. RESET
changes from high to low when any monitored power-supply
input (V CC 1, V CC 2, RSTIN) drops below its selected reset
threshold. It remains low until all monitored power-supply
inputs exceed their selected reset thresholds for the V CC
reset timeout period. RESET is forced low if MR is low for at
1
1
1
1
1
RESET
least the MR minimum input pulse width. It remains low for
the MR reset timeout period after MR goes high. The push-
pull output is referenced to V CC 1. The MAX6736/MAX6738
open-drain outputs require an external pullup resistor. The
MAX6740/MAX6741/MAX6742 open-drain outputs have an
internal 50k ? pullup resistor to V CC 1 and provide a manual
reset function.
2
2
2
2
2
GND
Ground
Manual Reset, Active Low. Pull low for at least MR minimum
input pulse width to force RESET low. Reset remains active
3
3
—
—
—
MR
as long as MR is low and for the MR reset timeout period
after MR goes high. There is an internal 1.5k ? pullup resistor
to V CC 1.
4
—
4
4
—
V CC 2
Voltage Input 1. Power supply and input for the secondary
μP voltage reset monitor.
Adjustable Reset Threshold Input. RESET is asserted when
—
4
3
—
—
RSTIN
RSTIN is below the internal 0.488V reference level. Set the
adjustable reset threshold with an external resistor-divider
network. Connect RSTIN to V CC 1 if unused.
5
5
5
5
5
V CC 1
Voltage Input 2. Power supply and input for the primary μP
voltage reset monitor.
Power-Fail Comparator Input. PFO is asserted when PFI is
below 0.488V. PFO is deasserted without any reset timeout
—
—
—
—
4
PFI
period when PFI goes above 0.488V. Connect PFI to an
external resistor network to set the desired monitor
threshold.
—
—
—
—
3
PFO
Power-Fail Comparator Output, Open Drain Active Low. PFO
is asserted when PFI is below 0.488V.
V CC 1 Power-OK Output, Open Drain Active High. POK1
remains low as long as V CC 1 is below V TH 1. POK1 output
—
—
—
3
—
POK1
goes high after V CC 1 exceeds V TH 1 for the POK1 timeout
period. POK1 logic is independent of the MR or V CC 2 inputs.
The output can be used to control V CC 1-to-V CC 2 supply
sequencing.
8
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX6740XKVFD7 | 制造商:Maxim Integrated Products 功能描述:LOW-POWER DUAL/TRIPLE-VOLTAGE SC70 - Rail/Tube |
| MAX6740XKVFD7+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 |
| MAX6740XKVFD7-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 |
| MAX6740XKVHD3 | 制造商:Maxim Integrated Products 功能描述:LOW-POWER DUAL/TRIPLE-VOLTAGE SC70 - Cut Tape Product |
| MAX6740XKVHD3+ | 制造商:Maxim Integrated Products 功能描述:- Rail/Tube |
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