Elmos Semiconductor AG

Info Sheet

QM-No.: 25IS0136E.00

Dual Low Drop Out Voltage Regulator with Digital Diagnosis

E522.40B

Production Data - Dec 4, 2015

Elmos Semiconductor AG reserves the right to change the detail specifications as may be required to permit improvements in the design of its products.

Features

Applications

Typical Application Circuit

3.3V to 40V including load dump transients.

to V

programmable overcurrent- and open load levels.

overtemperature and overcurrent with

open-drain error flag.

to reduce power dissipation.

protection limits and voltage and current monitoring.

additional functions.

and currents.

General Description

antennas in automotive environments. It affords protection

of the antenna lines against ESD, short to ground and battery,

as well as protection against thermal over-stress of the IC.

only 2 interface lines. Various antenna voltages from 3.3V to

18V can be programmed independently using external volt-

age dividers.

A separate control line can be connected to an external bipo-

lar NPN-transistor as a pre-regulator to reduce power dissipa-

allows monitoring of antenna voltages and currents. Over-

current and open load limits can be programmed for each

antenna line separately, and will lead to automatic shutoff

if tripped.

An analog sense input and digital control line can be used

to interface with an additional phantom supply or for other

functions.

Ordering Information

Ordering No.:

Temp Range

AMB

Package

E52240B62C

-40°C to +125°C

QFN20L5

SCL

G1

IN[1,2]

VC

SDA

µC Interrupt

Bus

{

VDD

VBAT

3.3V

Dig. Sup

Ground

EN

COUT

COUT,HF

LOUT

CBYP

DO

AIN

Analog Sense Input

1 or 2 Antennas

Optional Digital

Control Output

A[1,2]

FB[1,2]

Antenna

200mA

AC-Signal

NFLT

GND

AD[1,2]

DSUP

R1

I2C Bus

Digital Enable

RP

RFBH

RFBL

E522.40

CIN

CSUP,HF

CSUP

CVDD,HF

CVDD

CVC

Q1

SUP

optional

NPN for

power dissipation