LM9074

Features: ·Automotive application reliability·3% output voltage tolerance·Insensitive to radiated RFI·Dropout voltage less than 2.5V with 180 mA output current·Externally programmed reset delay interval·Keep-alive feature with 2 logic control inputs·60V Load dump transient protection·Thermal shutd...

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LM9074 Picture
SeekIC No. : 004396264 Detail

LM9074: Features: ·Automotive application reliability·3% output voltage tolerance·Insensitive to radiated RFI·Dropout voltage less than 2.5V with 180 mA output current·Externally programmed reset delay inte...

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Part Number:
LM9074
Supply Ability:
5000

Price Break

  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Upload time: 2024/10/30

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Product Details

Description



Features:

·Automotive application reliability
·3% output voltage tolerance
·Insensitive to radiated RFI
·Dropout voltage less than 2.5V with 180 mA output current
·Externally programmed reset delay interval
·Keep-alive feature with 2 logic control inputs
·60V Load dump transient protection
·Thermal shutdown
·Short circuit protection and disable safety features
·Reverse battery protection
·Low OFF quiescent current, 60 µA maximum
·Wide operating temperature range −40°C to +125°C





Application

The LM9074 voltage regulator has been optimized for use in microprocessor based automotive systems. Several unique design features have been incorporated to address many FMEA (Failure Mode Effects Analysis) concerns for fail-safe system performance.






Pinout

  Connection Diagram




Specifications

Input Voltage
ON/OFF, Keep-Alive Inputs
(through 1 k)
DC Input Voltage .......................................................................−26V to +26V
Positive Input Transient (t<100 ms) .........................................................40V
Negative Input Transient (t<1 ms) .........................................................−50V
Reset Output Sink Current ......................................................................5 mA
Power Dissipation ................................................................Internally Limited
Junction Temperature ..........................................................................150°C
ESD Susceptibility (Note 2) ............................................................12 kV, 2 kV
Lead Temperature
(Soldering, 10 seconds) ......................................................................260°C
Storage Temperature .......................................................−50°C to +150°C


Temperature Min -40 deg C
Temperature Max 125 deg C
Multiple Output Capability No
On/Off Pin Yes
Error Flag Yes
Input Min Voltage 7.5 Volt
Input Max Voltage 40 Volt
Output Current 180 mA
Output Min 5 Volt
Output Max 5 Volt
Watchdog No
View Using Catalog





Description

The LM9074 is a 5V, 3% accurate, 180 mA NPN voltage regulator.

The LM9074 features an active low delayed reset output flag which can be used to reset a microprocessor system on turn-ON and in the event that the regulator output falls out of regulation for any reason. An external capacitor programs a delay time interval before the reset output can return high. Designed for automotive application the LM9074 contains a variety of protection features such as reverse battery, over-voltage shutdown, thermal shutdown, input transient protection and a wide operating temperature range. A unique two-input logic control scheme is used to enable or disable the regulator output. An ON/OFF input can be provided by an ignition switch derived signal while a second, Keep-Alive input, is generated by a system controller. This allows for a system to remain ON after ignition has been switched OFF. The system controller can then execute a power-down routine and after which command the regulator OFF to a low quiescent current state (60 µA max). Design techniques have been employed to allow the regulator to remain operational and not generate false reset signals when subjected to high levels of RF energy (300V/m from 2 MHz to 400 MHz).






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