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| 型号： | MAX16013TT+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 9/12页 |
| 文件大小： | 0K |
| 描述： | IC OVERVOLTAGE PROT/DETEC 6TDFN |
| 其它有关文件： | Automotive Product Guide |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 1 |
| 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 <1 ms |
| 电压 - 阀值： | 可调节/可选择 |
| 工作温度： | -40°C ~ 125°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 6-WDFN 裸露焊盘 |
| 供应商设备封装： | 6-TDFN 裸露焊盘（3x3） |
| 包装： | 标准包装 |
| 其它名称： | MAX16013TT+TDKR |
Ultra-Small, Overvoltage Protection/
Detection Circuits
In normal operating mode, internal GATE1 output cir-
cuitry enhances P1 to a 10V gate-to-source (V GS ) for
11V < V CC < 72V. The constant 10V enhancement
ensures P1 operates in a low R DS-ON mode, but the
gate-source junction is not overstressed during high-
battery-voltage application or transients (many MOSFET
devices specify a ±20V V GS absolute maximum). As
V CC drops below 10V GATE1 is limited to GND, reduc-
ing P1 V GS to V CC - GND. In normal operation the P1
power dissipation is very low:
P1 = I LOAD 2 x R DS-ON
During reverse-battery applications, GATE1 is limited to
GND and the P1 gate-source junction is reverse
biased. P1 is turned off and neither the MAX16013/
MAX16014 nor the load circuitry is exposed to the
reverse-battery voltage. Care should be taken to place
P1 (and its internal drain-to-source diode) in the correct
orientation for proper reverse battery operation.
P2 protects the load from input overvoltage conditions.
During normal operating modes (the monitored voltage
is below the adjusted overvoltage threshold), internal
GATE2 output circuitry enhances P2 to a 10V gate-to-
source (V GS ) for 11V < V CC < 72V. The constant 10V
enhancement ensures P2 operates in a low R DS-ON
mode but the gate-to-source junction is not over-
stressed during high-battery-voltage applications
(many pFET devices specify a ±20V V GS absolute max-
imum). As V CC drops below 10V, GATE2 is limited to
GND, reducing P2 V GS to V CC - GND. In normal opera-
tion, the P2 power dissipation is very low:
P2 = I LOAD 2 x R DS-ON
During overvoltage conditions, P2 is either turned com-
pletely off (overvoltage-switch mode) or cycled off-on-
off (voltage-limiter mode). Care should be taken to
place P2 (and its internal drain-to-source diode) in the
correct orientation for proper overvoltage protection
operation. During voltage-limiter mode, the drain of P2
is limited to the adjusted overvoltage threshold, while
the battery (V CC ) voltage rises. During prolonged over-
voltage events, P2 temperature can increase rapidly
due to the high power dissipation. The power dissipat-
ed by P2 is:
P2 = V DS-P2 x I LOAD
= (V CC - V OV-ADJUSTED ) x I LOAD
where V CC ~ V BATTERY and V OV-ADJUSTED is the desired
load limit voltage. For prolonged overvoltage events with
high P2 power dissipation, proper heatsinking is required.
Adding External Pullup Resistors
It may be necessary to add an external resistor from
V CC to GATE1 to provide enough additional pullup
capability when the GATE1 input goes high. The
GATE_ output can only source up to 1μA current. If the
source current is less than 1μA, no external resistor
may be necessary. However, to improve the pullup
capability of the GATE_ output when it goes high, con-
nect an external resistor between V CC and the GATE_.
The application shows a 2M ? resistor, which is large
enough not to impact the sinking capability of the
GATE_ (during normal operation) while providing
enough pullup during an overvoltage event. With an
11V (worst case) V CC -to-gate clamp voltage and a
sinking current of 75μA, the smallest resistor should be
11V/75μA, or about 147k ? . However, since the GATE_
is typically low most of the time, a higher value should
be used to reduce overall power consumption.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX16014TT | 制造商:Maxim Integrated Products 功能描述:ULTRA-SMALL OVERVOLTAGE PROTECTION - Rail/Tube |
| MAX16014TT+ | 制造商:Maxim Integrated Products 功能描述:PROCESSOR SUPERVISOR 1.245V/1.18V 25UA 6TDFN EP - Rail/Tube |
| MAX16014TT+T | 功能描述:监控电路 Overvoltage Protect / Detect 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 |
| MAX16014TT-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 |
| MAX16016LTBL+ | 制造商:Rochester Electronics LLC 功能描述: 制造商:Maxim Integrated Products 功能描述: |
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