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| 型号： | MAX16065ETM+ |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 51/62页 |
| 文件大小： | 0K |
| 描述： | IC SYSTEM MANAGER 12CH 48-TQFN |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 43 |
| 应用： | 电源监控器，序列发生器 |
| 电源电压： | 2.8 V ~ 14 V |
| 电流 - 电源： | 4.5mA |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 48-WFQFN 裸露焊盘 |
| 供应商设备封装： | 48-TQFN-EP（6x6） |
| 包装： | 管件 |
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12-Channel/8-Channel, Flash-Configurable System
Managers with Nonvolatile Fault Registers
Table 33. Maximum Write Time
r6Dh[1:0]
VALUE
DESCRIPTION
MAXIMUM
WRITE TIME
(ms)
V IN
R
V OUT
00
Save flags and ADC
readings
244
01
10
11
Save flags
Save ADC readings
Do not save anything
77
153
—
MON_
EN_OUT_
MAX16065
MAX16066
V IN
C
V CC
MAX16065
MAX16066
GND
Figure 17. Power Circuit for Shutdown During Fault Conditions
required, t FAULT_SAVE . Use the following formula to cal-
culate the capacitor size:
C = (t FAULT_SAVE x I CC(MAX) )/(V IN - V DIODE - V UVLO )
where the capacitance is in Farads and t FAULT_SAVE is in
seconds, I CC(MAX) is 14mA, V DIODE is the voltage drop
across the diode, and V UVLO is 2.7V. For example, with
a V IN of 14V, a diode drop of 0.7V, and a t FAULT_SAVE
of 153ms, the minimum required capacitance is 202 F F.
Driving High-Side MOSFET Switches
Up to eight of the programmable outputs (EN_OUT1–
EN_OUT8) of the MAX16065/MAX16066 can be config-
ured as charge-pump outputs to drive the gates of series-
pass n-channel MOSFETs. When driving MOSFETs,
these outputs act as simple power switches to turn on
the voltage supply rails. Approximate the slew rate, SR,
using the following formula:
SR = I CP /(C GATE + C EXT )
where I CP is the 4 F A (typ) charge-pump source current,
C GATE is the gate capacitance of the MOSFET, and C EXT
is the capacitance connected from the gate to ground.
If more than eight series-pass MOSFETs are required
for an application, additional series-pass p-channel
MOSFETs can be connected to outputs configured as
Figure 18. Connection for a p-Channel Series-Pass MOSFET
active-low open drain (Figure 18). Connect a pullup
resistor from the gate to the source of the MOSFET, and
ensure the absolute maximum ratings of the MAX16065/
MAX16066 are not exceeded.
Configuring the Device
An evaluation kit and a graphical user interface (GUI) is
available to create a custom configuration for the device.
Refer to the MAX16065/MAX16066 Evaluation Kit for
configuration.
Cascading Multiple MAX16065/MAX16066s
Multiple MAX16065/MAX16066s can be cascaded to
increase the number of rails controlled for sequencing
and monitoring. There are many ways to cascade the
devices depending on the desired behavior. In general,
there are several techniques:
U Configure a GPIO_ on each device to be EXTFAULT
(open drain). Externally wire them together with a
single pullup resistor. Set register bits r72h[5] and
r6Dh[2] to ‘1’ so that all faults will propagate between
devices. If a critical fault occurs on one device,
EXTFAULT will assert, triggering the nonvolatile fault
logger in all cascaded devices and recording a snap-
shot of all system voltages.
U Connect open-drain RESET outputs together to obtain
a master system reset signal.
U Connect all EN inputs together for a master enable sig-
nal. Since the internal timings of each cascaded device
are not synchronized, EN_OUT_s placed in the same
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相关代理商/技术参数 |
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|---|---|
| MAX16065ETM+ | 功能描述:监控电路 12Ch Power Supply Sequencer 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 |
| MAX16065ETM+T | 功能描述:监控电路 12Ch Power Supply Sequencer 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 |
| MAX16065EVKIT+ | 制造商:Maxim Integrated Products 功能描述:MAX16065 EVALUATION KIT - Boxed Product (Development Kits) |
| MAX16066ETL+ | 功能描述:监控电路 8Ch Power Supply Sequencer 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 |
| MAX16066ETL+T | 功能描述:监控电路 8Ch Power Supply Sequencer 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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