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EM614163A-35/50/60, EM614163A40, EM6152

Table of contents:
Info of EM614163A-35/50/60
Info of EM614163A40
Info of EM6152

EM614163A-35/50/60, EM614163A40, EM6152 Selling Leads, Datasheet

MFG:EM Package Cooled:SOJ D/C:04+

EM614163A-35/50/60, EM614163A40, EM6152 Picture

EM614163A-35/50/60, EM614163A40, EM6152 Datasheet download

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Part Number: EM614163A-35/50/60

MFG: EM

Package Cooled: SOJ

D/C: 04+

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EM6152 General Description

The EM6152 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 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 a 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 eing 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 TCL input of the EM6152 (version 55) and it goes into a stand-by mode in order to save power (CAN-bus sleep detector).

In EM6152, the voltage regulator has a low dropout voltage and a low quiescent current of 135 A. 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.

EM6152 Maximum Ratings

Parameter	Symbol	Conditions
Continuous voltage at INPUT to VS_S	V_INPUT	-0.3 to +40V
Transients on INPUT for t < 100 ms and duty cycle 1%	V_TRANS	Up to +45V
Max. voltage at any signal pin	V_MAX	V_OUTPUT + 0.3V
Min. voltage at any signal pin	V_MIN	V_SS 0.3V
Reverse supply voltage on INPUT	V_REV	-42V
Storage temperature	T_STO	-65 to +150 °C
ESD According to MIL-STD-883C method 3015.7	V_Smax	2000V

EM6152 Features

` Low quiescent current 135 A
` -40°C to +125°C temperature range
` Highly accurate 5 V, 400 mA guaranteed output (actual maximum current depends on power dissipation)
` Low dropout voltage, typically 250 mV at 250 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 3.0 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 voltag down to 1.2 V
` System ENABLE output offers added security
` Qualified according to AEC-Q100
` Green SO-8 and PSOP2-16 packages (RoHS compliant)

EM6152 Typical Application

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

EM6152 Connection Diagram

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