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EM6152A

Features: `Low quiescent current 90 A`-40°C to +125°C temperature range`Highly accurate 5 V, 150 mA guaranteed output (actual maximum current depends on power dissipation)`Low dropout voltage, typically 250 mV at 100 mA`Unregulated DC input can withstand -42 V reverse battery and +45 V power trans...

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SeekIC No. : 004335968 Detail

EM6152A: Features: `Low quiescent current 90 A`-40°C to +125°C temperature range`Highly accurate 5 V, 150 mA guaranteed output (actual maximum current depends on power dissipation)`Low dropout voltage, typic...

EM6152A Data Sheet

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Part Number:
EM6152A
Supply Ability:
5000

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

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Upload time: 2024/11/21

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Product Details

Description



Features:

`Low quiescent current 90 A
`-40°C to +125°C temperature range
`Highly accurate 5 V, 150 mA guaranteed output (actual maximum current depends on power dissipation)
`Low dropout voltage, typically 250 mV at 100 mA
`Unregulated DC input can withstand -42 V reverse battery and +45 V power transients
`Fully operational for unregulated DC input voltage up to 40 V and regulated output voltage down to 3.5 V
`No reverse output current
`Very low temperature coefficient for the regulated output
`Current limiting
`Windowed watchdog with an adjustable time windows, guaranteeing a minimum time and a maximum time between software clearing of the watchdog
`Time base accuracy ±8% (at 100ms)
`Sleep mode function (V55)
`Adjustable threshold voltage using external resistors
`Adjustable power on reset (POR) delay using one external resistor
`Open-drain active-low RESET output
`Reset output guaranteed for regulated output voltage down to 1.2 V
`System ENABLE output offers added security
`Qualified according to AEC-Q100
`Pin out compatible with EM6152
`Green SO-8 and Exposed Pad SO-16 packages (RoHS compliant)




Application

·Automotive systems
·Industrial
·Home security systems
·Telecom / Networking
·Computers
·Set top boxes




Pinout

Connection Diagram




Specifications

Parameter
Symbol
Conditions
Continuous voltage at INPUT to VSS
VINPUT
-0.3 to +40V
Transients on INPUT for
t < 100 ms and duty cycle 1%
VTRANS
Up to +45V
Max. voltage at any signal pin
VMAX
VOUTPUT + 0.3V
Min. voltage at any signal pin
VMIN
VSS 0.3V
Reverse supply voltage on INPUT
VREV
-42V
Storage temperature
TSTO
-65 to +150 °C
ESD
According to MIL-STD-883
method 3015.7
VSmax
2000V
Stresses above these listed maximum ratings may cause permanent damages to the device. Exposure beyond specified operating conditions may affect device reliability or cause malfunction.




Description

The EM6152A offers a high level of integration by combining voltage regulation, voltage monitoring and software monitoring using a windowed watchdog.
A comparator monitors the voltage applied at the VIN input comparing it with an internal voltage reference VREF. The power-on reset function is initialized after VIN reaches VREF and takes the reset output inactive after a delay TPOR depending on external resistance ROSC. The reset output goes active low when the VIN voltage is less than VREF. The inverted RES and EN outputs are guaranteed to be in a correct state for a regulated output voltage as low as 1.2 V. The watchdog function monitors software cycle time and execution.
If software clears the watchdog too quickly (incorrect cycle time) or too slowly (incorrect execution) it will cause the system to be reset. For enhanced security, the watchdog must be serviced within an "open" time window. During the remaining time, the watchdog time window is "closed" and a reset will occur should an inverted TCL pulse be received by the watchdog during this "closed" time window. The ratio of the open/closed window is either 33%/67% or 67%/33%.
The system ENABLE output prevents critical control functions being activated until software has successfully cleared the watchdog three times. Such a security could be used to prevent motor controls being energized on repeated resets of a faulty system.
When the microcontroller goes in stand-by mode or stops working, no signal is received on the inverted TCL input of the EM6152A (version 55) and it goes into a stand-by mode in order to save power (CAN-bus sleep detector).
In EM6152A, the voltage regulator has a low dropout voltage and a low quiescent current of 90 mA. The quiescent current increases only slightly in dropout prolonging battery life. Built-in protection includes a positive transient absorber for up to 45 V (load dump) and the ability to survive an unregulated input voltage of -42 V (reverse battery). The input may be connected to ground or to a reverse voltage without reverse current flowing from the output to the input.






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