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

iC-JJ POWER MANAGEMENT IC Rev A1, Page 2/17 GENERAL DESCRIPTION Monolithic device iC-JJ supplies electronic systems from a single input voltage VBAT (6V to 16.5V) with voltages which range from 5V to 48V. The autarky function guarantees that the output voltages are maintained for up to several hundred milliseconds, even after the input voltage has been aborted. A step-up converter produces a voltage of VBAT+2V to 48V, whose setpoint is adjusted via two external resistors at VA1x. Two 5V linear regulators provide 200mA (VCC) and 60mA (VREF). Alternatively, 260mA are available from the 6V step-down...

iC-JJ POWER MANAGEMENT IC Rev A1, Page 3/17 PCRD 1 2 TCRD 3 TCRA 4 NRES 5 VVA 6 GND 7 VBG 8 RSET 9 AGND 10 33 VA1 32 VHL 31 VFP JJ Code... yyww ... ENA11 TAKSE 30 VA 29 n.c. 28 n.c. 27 VB 26 VA1x 25 VMR 24 VM 23 K PACKAGE MQFP44 according to the JEDEC standard PIN CONFIGURATION MQFP44 (top view) PIN FUNCTIONS No. Name Function No. Name Function 1 PCRD Message Output for Pin NCRD 25 VMR Measurement Input Undervoltage- and 2 TAKS Trigger Input for Output NAKS Autarky Detection 3 TCRD Trigger Input for Output NCRD 26 VA1x Setpoint Assignment VA1 4 TCRA Trigger Input for Output CRA 27 VB Supply during...

iC-JJ POWER MANAGEMENT IC Rev A1, Page 4/17 All voltages are referenced to ground unless otherwise noted. All currents into the device pins are positive; all currents out of the device pins are negative. ABSOLUTE MAXIMUM RATINGS Values beyond which damage may occur; device operation is not guaranteed. Item Symbol Parameter Conditions Fig. Unit Min. Max. G001 V() Voltage at COS, TWD, VBG, RSET, RXD, TXD, TFP, TAKS, TFL, TCRD, TCRA, PFL, PAKS, PCRD, PCRA, NRES, NVTA, VTU, NRHD, VVA V() # VCC+ 0.3V -0.3 5.5 V G002 I() Current in Pins COS, TWD, VBG, RSET, RXD, TXD, TFP, TAKS, TFL, TCRD, TCRA, PFL,...

iC-JJ POWER MANAGEMENT IC Rev A1, Page 5/17 ABSOLUTE MAXIMUM RATINGS Values beyond which damage may occur; device operation is not guaranteed. Item Symbol Parameter Conditions Fig. Unit Min. Max. GG03 V(VB) Voltage at VB -0.3 48 V GG04 I(VB) Current in VB V(VA, VB)< 3V, t< 2s -500 50 mA GG05 Imax(VB) Max. Current Load at VB during Autarky Case VA1< 30.6V, CVB< 120ìF, RVB> 9.5S -200 0 mA GH01 V(NCRD) Voltage at NCRD -1.2 48 V GH02 I(NCRD) Current in NCRD -30 30 mA GI01 V(CRA) Voltage at CRA -8.8 48 V GI02 I(CRA) Current in CRA -50 50 mA GP01 V(VM) Voltage at VM via 511S -1.5 48 V GP02 I(VM) Current...

iC-JJ POWER MANAGEMENT IC Rev A1, Page 6/17 ELECTRICAL CHARACTERISTICS Operating conditions: +VBAT= 6..16.5V, PGND= GND, COS= 680pF, RSET= 10kS, RKL= 511S, RKLR= 511S, Tj= -40..125EC, unless otherwise noted Item Symbol Parameter Conditions Tj Fig. Unit EC Min. Typ. Max. Total Device 1 I(VA1) Supply Current in VA1 outputs passive, VA1= 30V, VH= 6V 8 3 52 mA 002 I(VH) Supply Current in VH in-/outputs passive, VA1= 30V, VH= 6V 25 5 75 mA 003 I(KL, KLR) Supply Current in KL, KLR in-/outputs passive, switching regulator active, V(KL, KLR)= 12V 8 12 16 mA 004 I(KL, KLR) Supply Current in KL, KLR in-/outputs...

iC-JJ POWER MANAGEMENT IC Rev A1, Page 7/17 ELECTRICAL CHARACTERISTICS Operating conditions: +VBAT= 6..16.5V, PGND= GND, COS= 680pF, RSET= 10kS, RKL= 511S, RKLR= 511S, Tj= -40..125EC, unless otherwise noted Item Symbol Parameter Conditions Tj Fig. Unit EC Min. Typ. Max. Total Device (continued) 17 Vc()lo ESD Clamp Voltage lo at COS, TWD, VBG, RSET, AGND, RXD, TXD, NRES, NVTA, VTU, VM, VMR, TFP, TFL, PFL, VH, VREF, VCC, ENA, TAKS, PAKS, TCRD, TCRA, PCRD, PCRA, NRHD, VVA, HD, VA1x, VA, VB against GND, I()= -10mA -1.4 -0.3 V 18 Vc()lo ESD Clamp Voltage lo at NFL, VHL, VFP, VA1, VBL, NCRD, NAKS against...

iC-JJ POWER MANAGEMENT IC Rev A1, Page 8/17 ELECTRICAL CHARACTERISTICS Operating conditions: +VBAT= 6..16.5V, PGND= GND, COS= 680pF, RSET= 10kS, RKL= 511S, RKLR= 511S, Tj= -40..125EC, unless otherwise noted Item Symbol Parameter Conditions Tj Fig. Unit EC Min. Typ. Max. Thermal Shutdown 301 Toff Thermal Shutdown Threshold for NFL, NAKS, CRA, NCRD, K 135 160 EC 302 Ton Thermal Lock-on Threshold for NFL, NAKS, CRA, NCRD, K 110 145 EC 303 Thys Temperature Hysteresis Thys= Toff- Ton 12 EC Standby 401 V(ENA)lo Lower Enable Threshold 2 V 402 V(ENA)hi Upper Enable Threshold 4 V 403 VENAhys Hysteresis...