参数资料
型号: MAX6397WATA+T
厂商: Maxim Integrated Products
文件页数: 15/18页
文件大小: 0K
描述: IC SW OVERVOLT PROT 8-TDFN
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: 2,500
电压 - 工作: 72V
技术: 混合技术
功率(瓦特): 1.45W
电路数: 1
应用: 通用
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)
Overvoltage Protection Switch/Limiter
Controllers Operate Up to 72V
An additional capacitor can be added to GATE and
GND to shift the curves as this increases ? t1. These val-
ues are used for illustration only. Customers must verify
worst-case conditons for their specific application.
OUTPUT Current Calculation
The MAX6397 high input voltage (+72V max) provides up
to 100mA of output current at REG. Package power dissi-
pation limits the amount of output current available for a
given input/output voltage and ambient temperature.
2.0
1.8
1.6
1.4
1.2
1.0
0.8
1.455W
DERATE 18.2mW/ ° C
ABOVE +70 ° C
Figure 13 depicts the maximum power dissipation curve
for the MAX6397. The graph assumes that the exposed
metal pad of the MAX6397 package is soldered to 1in 2 of
PC board copper. Use Figure 11 to determine the allow-
able package dissipation for a given ambient tempera-
ture. Alternately, use the following formula to calculate the
allowable package dissipation:
P DISS = 1.455W for T A ≤ +70°C
0.6
0.4
0.2
0
0
20
40
60
80
100 120 140 160
Maximum power dissipation =
1.455 - 0.0182 (T A - 70°C) for +70°C ≤ T A ≤ +125°C
where, 0.0182 W/°C is the MAX6397 package thermal
derating.
After determining the allowable package dissipation,
TEMPERATURE ( ° C)
calculate the maximum output current using the follow-
ing formula:
Figure 13. Maximum Power Dissipation vs. Temperature
I OUT ( MAX ) =
P DISS
V IN ? V REG
≤ 100 mA
Typical Application Circuit
DC-DC
CONVERTER
GATE
IN
GND
OUT
μ C
12V IN
IN
REG
POK
MAX6397
OUT
SET
V CC
RESET
GPIO
ALWAYS-ON
μ C
SHDN
GND
______________________________________________________________________________________
15
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MAX6397YATA 制造商:Maxim Integrated Products 功能描述:OVERVOLTAGE PROTECTION SWITCH/LIMIT - Rail/Tube
MAX6397YATA+ 制造商:Maxim Integrated Products 功能描述:VOLT SUPERVISOR CNTRLR 1.215V 8TDFN EP - Rail/Tube 制造商:Rochester Electronics LLC 功能描述:
MAX6397YATA+T 功能描述:监控电路 Over Volt Protection Switch/Limiter 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
MAX6397YATA-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
MAX6397ZATA 制造商:Maxim Integrated Products 功能描述:OVERVOLTAGE PROTECTION SWITCH/LIMIT - Rail/Tube 制造商:Rochester Electronics LLC 功能描述: