EM6152 EM Microelectronic, EM6152 Datasheet

EM6152

Manufacturer Part Number

EM6152

Description

5V Automotive Regulator

Manufacturer

EM Microelectronic

Datasheet

1.EM6152.pdf (12 pages)

Available stocks

Company

Part Number

Manufacturer

Quantity

Price

Company:

Bonase Electronics (HK) Co., Limited

Part Number:

EM6152

Manufacturer:

TEKMOS

Quantity:

Current page: 1 of 12
Download datasheet (571Kb)

www.DataSheet4U.com

Description

The EM6152 offers a high level of integration by combining

voltage

monitoring using a windowed watchdog.

A comparator monitors the voltage applied at the V

comparing it with an internal voltage reference V

power-on reset function is initialized after V

and takes the reset output inactive after a delay T

depending on external resistance R

active low when the V

and

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

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

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 μA. 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.

Typical Operating Configuration

rev. B / 06.06

Unregulated

22uF

Voltage

5V Automotive Regulator with Windowed Watchdog

outputs are guaranteed to be in a correct state for a

OSC

regulation,

INPUT

EM MICROELECTRONIC -

OSC

EM6152

OUTPUT

voltage

RES

voltage is less than V

TCL

100nF

monitoring

pulse be received by the

OSC

22uF

. The reset output goes

GND

TCL

and

REF

reaches V

input of the

I/O

RES

I/O

. The

Fig. 1

REF

software

. The

input

RES

POR

REF

Features

Applications

Selection Table

Please refer to Fig. 4 for more information about the

open/closed window of the watchdog.

Part Number

EM6152 V30

EM6152 V50

EM6152 V53

EM6152 V55

MARIN SA

Low quiescent current 135 μA

-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 voltage

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)

Automotive systems

Industrial

Home security systems

Telecom / Networking

Computers

Set top boxes

1.275 V

1.17 V

1.52 V

REF

Window

Closed

67%

33%

67%

Window

www.emmicroelectronic.com

Open

33%

67%

33%

EM6152

CAN-bus sleep

detector

Yes

Related parts for EM6152

EM6152 Summary of contents

Page 1

... When the microcontroller goes in stand-by mode or stops working, no signal is received on 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 www.DataSheet4U.com and a low quiescent current of 135 μ ...

Page 2

... INPUT 6 13 OUTPUT Voltage regulator output OSC 11 Heat Sink - Contact www.DataSheet4U.com Block Diagram EM6152 Voltage INPUT Regulator Voltage Reference Voltage Reference V IN Current Controlled R OSC Oscillator Copyright © 2006, EM Microelectronic-Marin SA rev 06.06 V Package Delivery Form ...

Page 3

... Note 3: must be pulled up externally to V Note 4: the OUTPUT current will not apply to the full range of input voltage. Power dissipation that would require the EM6152 to work above the maximum junction temperature (+125°C) must be avoided. Note 5: the thermal resistance specified assumes the package is soldered to a PCB. A typical value of 51°C/W has been obtained with a dual layer board, with the slug soldered to the heat-sink area of the PCB. Copyright © ...

Page 4

... Note 1: if INPUT is connected sank by the OUTPUT to supply the EM6152. Note 2: regulation is measured at constant junction temperature using pulse testing with a low duty cycle. Changes in OUTPUT voltage due to heating effects are covered in the specification for thermal regulation. Note 3: the dropout voltage is defined as the INPUT to OUTPUT differential, measured with the input voltage equal to 5.0 V. ...

Page 5

... WDR T R off; R WDRS OSC INT T TCL inactive WDRPS , see figures 9 to 12. Version V53: =121.6 kOhm OSC T (open) OW 120 80 Watchdog Time [ms] timer reset and EM6152 Min. Typ. 250 , V =0 REF INlow REF 91.6 100 92.5 100 2.25 2.5 91 ...

Page 6

... B / 06.06 T SEN T SEN T POR Timeout T T TCL TCL too early 6 EM6152 T SEN T POR Conditions: V > V after power-up sequence IN REF WDR 3 3 correct TCL services EN goes active low www.emmicroelectronic.com Conditions: > OUTPUT No timeout Fig ...

Page 7

... Note that the current consumption increases as the frequency increases. Voltage Regulator The EM6152 has 400 mA, low dropout voltage regulator. The low supply current makes the EM6152 particularly suitable for automotive systems which remain continuously powered. The input voltage range is 2 ...

Page 8

... REF + R 100nF 22uF EM6152 is required on that pin. After the POR delay has after each closed and open window period. WDR Regulated Voltage (5V) Address decoder Microprocessor RES Motor EN controls GND Fig. 8 www ...

Page 9

... Coefficient versus T OSC 1.44 1.38 1.32 1.26 1.20 1.14 1.08 1.02 0.96 10 V50 R Coefficient versus T OSC 1.44 1.38 www.DataSheet4U.com 1.32 1.26 1.20 1.14 1.08 1.02 0.96 10 Copyright © 2006, EM Microelectronic-Marin SA rev 06. 5.0V and T =-40 to +125° 100 Twd [ms 5.0V and T =-40 to +125° 100 Twd [ms] 9 EM6152 Max Typ Min 1000 Fig. 9 Max Typ Min 1000 Fig. 10 www.emmicroelectronic.com ...

Page 10

... Coefficient versus T OSC 1.46 1.40 1.34 1.28 1.22 1.16 1.10 1.04 0.98 10 V55 R Coefficient versus T OSC 1.34 1.28 www.DataSheet4U.com 1.22 1.16 1.10 1.04 0.98 0.92 0.86 10 Copyright © 2006, EM Microelectronic-Marin SA rev 06. 5.0V and T =-40 to +125° 100 Twd [ms 5.0V and T =-40 to +125° 100 Twd [ms] 10 EM6152 Max Typ Min 1000 Fig. 11 Max Typ Min 1000 Fig. 12 www.emmicroelectronic.com ...

Page 11

... Typical maximum OUTPUT current versus INPUT voltage 450 400 350 300 250 200 150 T =85°C A 100 www.DataSheet4U.com Copyright © 2006, EM Microelectronic-Marin SA rev 06.06 T =25° INPUT Voltage [V] 11 EM6152 PSOP2-16 Package Botton slug soldered to PCB Fig. 13 www.emmicroelectronic.com ...

Page 12

... Dimensions of PSOP2-16 Package www.DataSheet4U.com Dual Layer PCB EM6152_PS16B top layer EM Microelectronic-Marin SA (EM) makes no warranty for the use of its products, other than those expressly contained in the Company's standard warranty which is detailed in EM's General Terms of Sale located on the Company's web site. EM assumes no responsibility for any errors which may appear in this document, reserves the right to change devices or specifications detailed herein at any time without notice, and does not make any commitment to update the information contained herein ...

Related keywords

EM6152 datasheet
EM6152 data sheet
EM6152 pdf datasheet
EM6152 component
EM6152 part
EM6152 distributor
EM6152 RoHS
EM6152 datasheet download