Details, datasheet, quote on part number: MC33989DWR2
CategoryPower Management => Regulators => Linear Regulators
DescriptionMC33989 System Basis Chip With High Speed CAN Transceiver
CompanyMotorola Semiconductor Products
DatasheetDownload MC33989DWR2 datasheet
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Features, Applications

Order this document by Rev: 4.91 Date: 10th July, 2002
System Basis Chip with High Speed CAN Transceiver

The is a monolithic integrated circuit combining many functions frequently used by automotive ECUs. It incorporates: - Two voltage regulators. - Four high voltage inputs. - 1Mbaud CAN physical interface. Vdd1: Low drop voltage regulator, current limitation, over temperature detection, monitoring and reset function Vdd1: Total current capability 200mA. V2: Tracking function of Vdd1 regulator. Control circuitry for external bipolar ballast transistor for high flexibility in choice of peripheral voltage and current supply. Four operational modes (normal, stand-by, stop and sleep mode) Low stand-by current consumption in stop and sleep modes High speed 1MBaud CAN physical interface. Four external high voltage wake-up inputs, associated with HS1 Vbat switch 150mA output current capability for HS1 Vbat switch allowing drive of external switches pull up resistors or relays Vsup failure detection Nominal DC operating voltage from to 27V, extended range down 4.5V. 40V maximum transient voltage Programmable software time out and window watchdog Safe mode with separate outputs for Watchdog time out and Reset Wake up capabilities (four wake up inputs, programmable cyclic sense, forced wake up, CAN interface, SPI and stop mode over current) Interface with MCU through SPI

Vsup monitor Dual Voltage Regulator Vdd1 Monitor
Mode control Oscillator Interrupt Watchdog Reset

This document contains information on a product under development. Motorola reserves the right to change or discontinue this product without notice.

Supply Voltage at Vsup - Continuous voltage - Transient voltage (Load dump) Logic Inputs (Rx, Tx, MOSI, MISO, CSB, SCLK, Reset, WDOGB, INTB) Output current HS1 - voltage - output current ESD voltage (HBM L3 - All other pins ESD voltage (Machine Model) All pins except CANH and CANL - DC Input voltage - DC Input current - Transient input voltage (according to ISO7637 specification) and with external component (see figure 1 below).

V Vsup Vlog V I Vesdh -4 -2 Vesdm Vwu V -0.3 Internally limited - 0.3 Internally limited Vdd1+0.3 kV

Junction Temperature Storage Temperature Ambient Temperature (for info only) Thermal resistance junction to gnd pins (note 1) note 1: gnd pins

(Vsup From to 18V and Tamb to 125°C) For all pins except CANH, CANL, Tx and Rx which are described in the CAN module section

Characteristics Description Vsup pin (Device power supply) Nominal DC Voltage range Extended DC Voltage range 1 Extended DC Voltage range 2 Input Voltage during Load Dump Input Voltage during jump start Supply Current in Stand-by Mode (note 2,4) (includes at Vdd1) Supply Current in Normal Mode (note 2)

mA Reduced functionality (note 1) (note 3) Load dump situation Jump start situation Iout Vdd1 =10mA CAN recessive or sleepdisable state Iout Vdd1 =10mA CAN recessive or sleepdisable state & V2 off, Vsup<12V, oscillator running (note5) CAN in sleep-disable state & V2 off, Vsup<12V oscillator not running (5) CAN in sleep-disable state & V2 off, Vsup>12V oscillator running (5) CAN in sleep-disable state Vdd1 on, Vsup<12V oscillator running (5) CAN in sleep-disable state Vdd1 on, Vsup<12V oscillator not running (5) CAN in sleep-disable state Vdd on, Vsup>12 oscillator running (5) CAN in sleep-disable state guaranteed by design In normal & standby mode In normal & standby mode guaranteed by design

Supply Current in Stop mode (note 2,4) I out Vdd1 <2mA Supply Current in Stop mode (note 2,4) I out Vdd1 <2mA Supply Current in Stop mode (note 2,4) Iout < 2mA BATFAIL Flag internal threshold BATFAIL Flag hysteresis Battery fall early warning threshold Battery fall early warning hysteresis

Isup (stop1) Isup (stop2) Isup (stop3) VBF hyst BFew BFewh 0.1 1.5

note 1: Vdd1>4V, reset high, logic pin high level reduced, device is functional. note 2: Current measured at Vsup pin. note 3: Device is fully functional. All functions are operating (All mode available and operating, Watchdog, HS1 turn ON turn OFF, CAN cell operating, to L3 inputs operating, SPI read write operation). Over temperature may occur. note 4: With CAN cell in sleep-disable state. If CAN cell is sleep-enabled for wake up, an additional 60uA must be added to specified value. note 5: Oscillator running means "Forced Wake up" or "Cyclic Sense" or "Software Watchdog in stop mode" timer activated. Oscillator not running means that "Forced Wake up" and "cyclic Sense" and "Software Watchdog in stop mode" are not activated.

Vdd1 (external 5V output for MCU supply). Idd1 is the total regulator output current. Vdd specification with external capacitor. Stability requirement: C>47uF ESR < 1.3 ohms (tantalum capacitor) In reset, normal request, normal and standby modes. Measures with C=47uF Tantalum. Vdd1 Output Voltage V Idd1 from to 200mA Tamb 125°C 5.5V< Vsup <27V Idd1 from 200mA 4.5V< Vsup <5.5V


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