Document
L4969
SYSTEM VOLTAGE REGULATOR WITH FAULT TOLERANT LOW SPEED CAN-TRANSCEIVER
PRELIMINARY DATA
s s s
s
s s s
s s
OPERATING SUPPLY VOLTAGE 6V TO 28V, TRANSIENT UP TO 40V LOW QUIESCENT CURRENT CONSUMPTION, LESS THAN 40µA IN SLEEP MODE TWO VERY LOW DROP VOLTAGE REGULATORS 5V / 200mA AND 5V/200mA SEPARATE VOLTAGE REGULATOR FOR CAN-TRANSCEIVER SUPPLY WITH LOW POWER SLEEP MODE EFFICIENT UC SUPERVISION AND RESET LOGIC 24 BIT SERIAL INTERFACE AN UNPOWERED OR INSUFFICIENTLY SUPPLIED NODE DOES NOT DISTURB THE BUS LINES VS VOLTAGE SENSE COMPARATOR SUPPORTS TRANSMISSION WITH GROUNDSHIFT: SINGLE WIRE: 1.5V, DIFFERENTIAL: 3V
SO20
PowerSO20
ORDERING NUMBERS: L4969MD (SO20) L4969 (PowerSO20)
DESCRIPTION The L4969 is an integrated circuit containing 3 independent Voltage Regulators and a standard fault tolerant low speed CAN line interface in multipower BCD3S process. It integrates all main local functions for automotive body electronic applications connected to a CAN bus.
Figure 1. Block Diagram
VS V1 VREG 1
V2
VREG 2
Watchdog and adjustable RC-Oscillator
NRESET
Identifier Filter V3 VREG 3
WAKE RX TX CANH RTH CANL RTL Fault tolerant low speed CAN-transceiver SCLK 24 Bit SPI SIN SOUT Control and Status Memory NINT
August 2003
This is preliminary information on a new product now in development or undergoing evaluation. Details are subject to change without notice.
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Figure 2. Pin Connection
GND V1 V2 V3 VS CANH RTL CANL RTH GND
GND WAKE NINT NRES
SCLK NRES NINT WAKE GND GND V1 V2 V3 VS
SIN SOUT TX RX
PSO20
SCLK SIN SOUT TXD RXD GND
SO20
GND GND RTH CANL RTL CANH
Table 1. Pin Functions
Pin No. (PSO20) 1, 10, 11, 20 2 3 4 5 6 7 8 9 12 13 14 15 16 17 18 19 Pin No. (SO20) 5,6, 15, 16 7 8 9 10 11 12 13 14 17 18 19 20 1 2 3 4 Pin Name GND V1 V2 V3 VS CANH RTL CANL RTH RXD TXD SOUT SIN SCLK NRES NINT WAKE Power Ground Microcontroller Supply Voltage Peripheral Supply Voltage Internal CAN Supply Power Supply CANH Line Driver Output CANL Termination Source CANL Line Driver Output CANH Termination Source Act. Low CAN Receive Dominant Data Output Act. Low CAN Transmit Dominant Data Input Serial Data Output Serial Data Input Serial Clock Act. Low Reset Output Act. Low Interrupt Request Dual Edge Triggerable Wakeup Input Function
Table 2. Thermal Data
Symbol Rthj-amb Rthj-case Parameter Thermal resistance junction-ambient Thermal resistance junction-case Value 401) 3 Unit °C/W °C/W
Note: 1. Typical value soldered on a PC board with 8 cm2 copper ground plane (35 µm thick).
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Table 3. Absolute Maximum Ratings
Symbol VVSDC VVSTR IVOUT1...3 TSTG TJ VOUT1 VOUT2 VOUT3 Vinli VinliW Vcanh Vcanl Parameter DC operating supply voltage Transient operating supply voltage (T < 400ms) Output currents Storage temperature Operating junction temperature Externally forced output voltage OUT1 Externally forced output voltage OUT2 Externally forced output voltage OUT3 Input voltage Logic inputs: SIN, SCLK, NRES Input voltage WAKE Voltage CANH line
3
Value -0.3 ... +28 -0.3 ... +40 Internally limited -65 ... +150 -40 ... +150 -0.3 ... VS+0.3, max +6.3 -0.3 ... VS+0.3 -0.3 ... VS+0.3, max +6.3 -0.3 ... +7 -0.3 ... VS+0.3 -28 ... +40 -28 ... +40
Unit VVSDC VVSTR IVOUT1...3 TSTG TJ VOUT1 VOUT2 VOUT3 Vinli VinliW Vcanh Vcanl
Voltage CANL line 3
Notes: 1. All pins of the IC are protected against ESD. The verification is performed according to MIL 883C, human body model with R = 1.5kW, C = 100pF and discharge voltage 2000V, corresponding to a maximum discharge energy of 0.2mJ.. 2. Voltage forced means voltage limited to the specified values while the current is not limited. 3. ESD Pulses on CAN-Pins up to 4KV HBM vs GND with all other Pins grounded.
Table 4. Electrical Characteristics VS = 14V, Tj = -40°C to 150°C unless otherwise specified.
Symbol Supply Current ISSL ISSLWK ISSB All Regulators off (CANH Standby V1 off, V2 off, V3 on (CAN RX only) V1 only (CAN Standby) Timer off (Sleep #1) Timer on (Sleep #2) RXonly Timer off (Standby #1) Timer on (Standby #2) Default (Standby #3) IS All Regulators on, (CAN active, TX high) Additional Oscillator- and Chargepumpcurrent at low VS IOUT1 = -100mA IOUT2 = -10mA No CAN load. VS = 6V; Timer Off VS = 6V; Timer On 6V < VS < 28V IO >-100mA SO20 Package 6V < VS < 28V IO >-150mA PSO20 Package VDP1 Dropout voltage 1@ VS=4.8V IOUT1 = -10mA IOUT1 = -100mA SO20 Package IOUT1 = -150mA PSO20 Package 55 10 4.9 30 70 40 90 4 150 200 440 120 60 135 6 250 300 600 150 µA µA mA µA µA µA mA Parameter Test Conditions Min. Typ. Max. Unit
ISCP
80 30 5
100 50 5.1
µA µA V
Voltage Regulator 1 V01 V1 output voltage
4.9
5
5.1
V
0.0 0.0 0.0
0.025 0.25 0.4
0.06 0.6 0.9
V V V
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Table 4. Electrical Characteristics (continued) VS = 14V, Tj = -40°C to 150°C unless otherwise specified.
Symbol VOL01 Parameter Load regulation 1 Test Conditions IO =-1mA to-100mA SO20 Package IO =-1mA to -150mA PSO20 Package ILIM1 Current limit 1 0.8V < VO1 < 4.5V, VS=6V, SO20 Package 0.8V < VO1 < 4..