iC-JJ Power Management IC with Autarky Function - iC-Haus - #1

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iC-JJ POWER MANAGEMENT iC Rev A1, Page 1/17 MFQ44 FEATURES APPLICATIONS ° 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. 30ìA ° 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 ì-controller ° CMOS-compatible inputs ° TTL-/CMOS-compatible outputs ° ESD protection ° Universal voltage supply iC with monitoring and autarky function for the voltage supply of automotive and industrial applications PACKAGE BLOCK DIAGRAM © 2000 iC-Haus GmbH Tel. +49-6135-9292-0 Integrated Circuits Fax +49-6135-9292-192 Am Kuemmerling 18, D-55294 Bodenheim http://www.ichaus.com VCC VBAT+2V...48V +5V/200mA +5V/60mA +12V/30mA ENABLE STANDBY REG VFP iC-JJ LVB DRIVER AUTARKY DRIVER AUTARKY CONTROL CONVERTER VVA VHL VH VH-SWITCHING VCC REG VREF VREF OSCILLATOR DRIVER NRHD COS REFERENCE BIAS PAKS PFL PCRA TCRD TCRA TFL TAKS NCRD NAKS NFL CRA +VBAT PGND GND DETECTION K-INTERFACE 50mA DRIVER REGULATOR TEMPERATUR ESD VB VCC + + VCC HD VA1x VBL VA1 VB VA BOOST TWD VBG RSET AGND VMR VM AUTARKY TEST AID NVTA VTU RXD TXDK VFP TFP ENA NRES LOGIC + IN-/OUTPUT REG VCC PCRD 100ìF CVA1 150ìH CVA 2200ìF D2 33nF LVH 270ìH CVH 33ìF CVCC 4.7ìF 1ìF CVREF CVFP 10nF RKL RKLR 511: 511: RSET 10k: CVBG 100nF COS RESET WATCHDOG + & & 200mA 30mA 30mA STAGES D1 D3 LA1 R1 R2 CVB 100ìF CKL