iC-JJ
POWER MANAGEMENT iC
Rev A1, Page 1/17
FEATURES
°
°
°
°
°
°
°
°
°
°
°
°
°
°
°
Supply voltage range of VBAT= 6 to 16.5V
Autarky function to maintain temporarily output voltages with
breakdown of supply voltage
Adjustable 200mA boost converter (VA1= VBAT+2V to 48V)
6V step-down regulator with integrated 125kHz oscillator
Two downstream 5V linear regulators with 200mA/60mA
output current
12V/30mA tri-state output
Low standby current of typ. 30µA
Integrated high/low-side drivers e.g. to attach indicator lamps
Overtemperature shutdown of high- and low-side drivers
Undervoltage detection
Serial single-wire communication interface
Watchdog for monitoring of the external µ-controller
CMOS-compatible inputs
TTL-/CMOS-compatible outputs
ESD protection
APPLICATIONS
°
Universal voltage supply iC with
monitoring and autarky function
for the voltage supply of auto-
motive and industrial applica-
tions
PACKAGE
MFQ44
BLOCK DIAGRAM
VBAT+2V...48V
CKL
33nF
LVB
150µH
VBL
D1
D2
D3
270µH
CVA1
100µF
VA1
CVB
100µF
VB
VA
CVA
2200µF
VVA
VHL
LVH
VH
CVH
33µF
VCC
CVCC
4.7µF
VREF
CVREF
1µF
NFL
NAKS
R1
R2
VH-SWITCHING
PGND
GND
COS
COS
+VBAT
+5V/200mA
+5V/60mA
LA1
VA1x
AUTARKY
BOOST
CONVERTER
AUTARKY
CONTROL
REGULATOR
REG VCC
REG VREF
200mA
DRIVER
VB
30mA
DRIVER
NCRD
ESD
HD
NRHD
TWD
WATCHDOG
+
+
OSCILLATOR
REFERENCE
+
50mA
DRIVER
30mA
DRIVER
CRA
TAKS
VBG
CVBG
100nF
TEMPERATUR
BIAS
LOGIC
VCC
TFL
RSET
RSET
10k
:
iC-JJ
TEST AID
STANDBY
VCC
+
IN-/OUTPUT
STAGES
TCRA
TCRD
RKL
511
:
RKLR
511
:
VM
&
VMR
&
PCRD
PAKS
PFL
VCC
K-INTERFACE
AGND
AUTARKY
DETECTION
NVTA
VTU RXD
TXD K
CVFP
10nF
VFP
REG VFP
RESET
TFP
ENA
NRES
PCRA
+12V/30mA
ENABLE
© 2000
iC-Haus GmbH
Integrated Circuits
Am Kuemmerling 18, D-55294 Bodenheim
Tel. +49-6135-9292-0
Fax +49-6135-9292-192
http://www.ichaus.com
ICHAUS [ IC-HAUS GMBH ]
