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参数资料
| 型号： | NIS5132MN2TXG |
| 厂商： | ON Semiconductor |
| 文件页数： | 9/11页 |
| 文件大小： | 258K |
| 描述： | IC ELECTRONIC FUSE 12V 10DFN |
| 标准包装： | 3,000 |
| 功能： | 电子保险丝 |
| 输入电压： | 9 V ~ 18 V |
| 电流 - 输出： | 3.6A |
| 工作温度： | -40°C ~ 150°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 10-VFDFN 裸露焊盘 |
| 供应商设备封装： | 10-DFN（3x3） |
| 包装： | 带卷 (TR) |
NIS5132 Series
http://onsemi.com
9
Undervoltage Lockout
The undervoltage lockout circuit uses a comparator with
hysteresis to monitor the input voltage. If the input voltage
drops below the specified level, the output switch will be
switched to a high impedance state.
dv/dt Circuit
The dv/dt circuit brings the output voltage up under a
linear, controlled rate regardless of the load impedance
characteristics. An internal ramp generator creates a linear
ramp, and a control circuit forces the output voltage to
follow that ramp, scaled by a factor.
The default ramp time is approximately 2 ms. This can be
modified by adding an external capacitor at the dv/dt pin.
This pin includes an internal current source of
approximately 85 nA. Since the current level is very low, it
is important to use a ceramic cap or other low leakage
capacitor. Aluminum electrolytic capacitors are not
recommended for this circuit.
The ramp time from 0 to the nominal output voltage can
be determined by the following equation, where t is in
seconds:
t
0*12
+ 24e6 @
50 pF ) C
ext
C
ext
+
t
012
24e6
* 50 pF
Where:
C is in Farads
t is in seconds
Any time that the unit shuts down due to a fault, enable
shutdown, or recycling of input power, the timing capacitor
will be discharged and the output voltage will ramp from 0
at turn on.
Enable/Fault
The Enable/Fault pin is a multifunction, bidirectional pin
that can control the output of the chip as well as send
information to other devices regarding the state of the chip.
When this pin is low, the output of the fuse will be turned off.
When this pin is high the output of the fuse will be
turnedon. If a thermal fault occurs, this pin will be pulled
low to an intermediate level by an internal circuit.
To use as a simple enable pin, an open drain or open
collector device should be connected to this pin. Due to its
tristate operation, it should not be connected to any type of
logic with an internal pullup device.
If the chip shuts down due to the die temperature reaching
its thermal limit, this pin will be pulled down to an
intermediate level. This signal can be monitored by an
external circuit to communicate that a thermal shutdown has
occurred. If this pin is tied to another device in this family
(NIS5132 or NIS5135), a thermal shutdown of one device
will cause both devices to disable their outputs. Both devices
will turn on once the fault is removed for the autoretry
devices.
For the latching thermal device, the outputs will be
enabled after the enable pin has been pulled to ground with
an external switch and then allowed to go high or after the
input power has been recycled. For the auto retry devices,
both devices will restart as soon as the die temperature of the
device in shutdown has been reduced to the lower thermal
limit. The thermal options are listed in the ordering table.
Thermal Protection
The NIS5132 includes an internal temperature sensing
circuit that senses the temperature on the die of the power
FET. If the temperature reaches 175癈, the device will shut
down, and remove power from the load. Output power can
be restored by either recycling the input power or toggling
the enable pin. Power will automatically be reapplied to the
load for autoretry devices once the die temperature has
been reduced by 45癈.
The thermal limit has been set high intentionally, to
increase the trip time during high power transient events. It
is not recommended to operate this device above 150癈 for
extended periods of time.
Figure 19. Fault/Enable Signal Levels
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相关代理商/技术参数 |
参数描述 |
|---|---|
| NIS5132MN3TXG | 功能描述:其他电源管理 RoHS:否 制造商:Texas Instruments 输出电压范围: 输出电流:4 mA 输入电压范围:3 V to 3.6 V 输入电流: 功率耗散: 工作温度范围:- 40 C to + 110 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-48 封装:Reel |
| NIS5135 | 制造商:ONSEMI 制造商全称:ON Semiconductor 功能描述:+5 Volt Electronic Fuse |
| NIS5135MN1TXG | 功能描述:热插拔功率分布 5.0V Electronic Fuse RoHS:否 制造商:Texas Instruments 产品:Controllers & Switches 电流限制: 电源电压-最大:7 V 电源电压-最小:- 0.3 V 工作温度范围: 功率耗散: 安装风格:SMD/SMT 封装 / 箱体:MSOP-8 封装:Tube |
| NIS5135MN2TXG | 功能描述:热插拔功率分布 5.0V Electronic Fuse RoHS:否 制造商:Texas Instruments 产品:Controllers & Switches 电流限制: 电源电压-最大:7 V 电源电压-最小:- 0.3 V 工作温度范围: 功率耗散: 安装风格:SMD/SMT 封装 / 箱体:MSOP-8 封装:Tube |
| NIS5232MN1TXG | 制造商:ON Semiconductor 功能描述:Electronic Fuse 10-Pin DFN EP T/R 制造商:ON Semiconductor 功能描述:NIS5232MN1TXG 8A E-FUSE L - Tape and Reel |
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