Transcript
Power management Driving smart power in automotive
Voltage regulators
Power management (SBC)
Electronic control units (ECUs), gateways, and body modules represent innovative electronic solutions for automotive applications requiring stable power supplies. ST offers a wide range of linear voltage regulators with extra features to support microprocessor operations such as watchdog, reset, and early warning functions as well as a low quiescent current during module standby that help prevent fast battery discharge when the vehicle is stopped. • Operating DC supply voltage : Up to 40V
Smart power management is increasingly pervading the automotive market, finding applications in ECUs, body modules, and gateways. To meet these demands, ST offers highly versatile state-of-the-art power management (System Basis Chips) to supply and drive loads and microcontrollers as well as to establish a reliable interface using dedicated communication protocols. This new power management family offers a broad selection of features and performance characteristics including a very low quiescent current and fail-safe functions.
SBCs
• Enable input for enabling/disabling the voltage regulators
Motor
LDO 1
LDO 2 WD
• Programmable reset pulse delay with external capacitor
FAIL SAFE WAKE UP
HSDs
• Low output voltage tolerance
• Programmable watchdog timer with external capacitor
SPI
• Low quiescent current
• Thermal shutdown and short circuit protection
DC MOTOR DRIVER
• Easy implementation
• Reset circuit sensing the output voltage down to 1 V
• High reliability • Limited number of external components
needed • Low dropout voltage
• Wide range of output currents (from 100 to 500 mA) 2
SPC5 32-bit Automotive MCUs
M
APPLICATIONS LED
Bulb
• Door zone • Window lift • Seat module
Resistive load
• Trunk module • Trailer module
OPAMP
Hall-effect sensor
• Sunroof module • Climate control (HVAC)
• Wide temperature range (TJ = -40 to 150°C)
• Body control module (BCM)
• Window lift
• Powertrain
• LED Light control
For L99PM60J, L9952GXP, L99PM62GXP and L99PM72GXP
• HVAC control module
• Sunroof module
For L9952GXP, L99PM62GXP and L99PM72GXP
• Door zone
• Gearbox
For L99PM62GXP and L99PM72GXP
• Seat positioning
• More
For L99PM72GXP
• and more
• Electric park brake
TYPICAL APPLICATIONS FOR L99PM62GXP AND L99PM72GXP V BAT
< 300mA
VS
>= 300mA
Output current*
5V_1 NRESET
Yes
Reset Output
No
Yes
Reset Output
Peripheral or Sensor Supply
No
DI DO CLK CSN
SPC56D L5150BNTR
Enable
Yes
Yes
Early Warning
No
No
Yes L4949ED-E L4949EP-E L5150CJ L5150CS
L4938ED* L4938EPD* L5150GJ
Early Warning
Yes
No Watchdog Timer & Enable
Watchdog Timer L4979D L4979MD
* L4938ED and L4938EPD dual output voltage devices (see table on page 6)
L4988D L4988MD L4989D L4989MD L4993D L4993MD
Yes L4938ED* L4938EPD* L5300GJ
Early Warning
Yes L4995J L4995K
Enable
No Watchdog Timer
No
Enable
L4995RJ L4995RK
L5300EPT
5V_2
32-bit Microcontroller VREG1
OUT_HS
VREG2
OUT1
SPI Interface
VS
OUT2
State Control
VS
M
OUT3 / FSO OUT4 REL1
CANSUP REL2 RXD _C TXD_C
CAN
No L4995AJ L4995AK L5300AH7 L5300RPT
V BAT VREG1
HS CAN Interface
OP1+
ISO 11898
OP1 -
CAN_H SPLIT CAN_L RXD_L/NINT TXD_L
OP1OUT OP2+
LIN Interface
OP2 -
2.1 / SAEJ2602
µC ADC
OUT4
OP2OUT WU1
LIN
LIN
WU2
Wake Up WU1 ... WU3
PGND
WU3 AGND
Cyclic Contact Monitoring
3
Multichannel voltage regulators As applications concentrate many functions in small areas and complex processors and surrounding components increase their demand on power rails and current absorption, the demand for voltage regulators with multiple outputs is increasing. Fully integrated solutions are necessary, considering that often other features like rail sequencing, voltage monitors and basic diagnostics are mandatory. ST’s double-voltage regulators can easily support the growing demand for USB power management.
VOLTAGE MONITORS
BUCK 1
FREQUENCY >= 2MHz
BUCK 2
ENABLE PINS
LDO / ST-BY
BATTERY VOLTAGE
Development tools To help developers get the most of our voltage regulators and power management solutions, ST provides a complete set of affordable tools for evaluating the capabilities of our solutions and demonstrating their main characteristics.
SAMPLE KIT • SAMPLES-AUTOPMIC : A collection of the most representative products in order to select the best device for
a specific application.
APPLICATIONS • Infotainment (head units, sound
systems) • Telematics REGULATED VOLTAGES
• Navigation
EVALUATION KITS
• Clusters INTERNAL SWITCHES
4
WATCHDOG / RESET
Only L5964
• USB hubs 5
• and more HSD
Only L5963
• EV-AUTO-LDOS : Easy boards with the
TYPICAL USB APPLICATION
targeted device mounted on an optimized PCB allowing for simple connection to an external environment to help ensure an effective design-in phase.
L5963 2 x 5V 3.3V
BATTERY
CTRL
• EVAL-L99PM62-72 : Dedicated evaluation
3.3V
Evaluation boards supporting the L5963 multichannel voltage regulator
USB SOCKET
USB HUB CONTROLLER
Order code SAMPLES-AUTOPMIC EV-AUTO-LDOS
5V DATA
with STM8AF and STM8AL 8-bit MCU evaluation boards with integrated L99PM62GXP power management IC
• EVAL-L5963 and EVAL-5963Q :
5V DATA
• STM8A-DISCOVERY : Discovery kit
board with L99PM62GXP-L99PM72GXP daughter boards, drivers & user-friendly GUI.
EVAL-L99PM62-72
USB SOCKET
STM8A-DISCOVERY
Evaluation tool
Components
Sample kit
L4995K; L5150BN; L5300GJ; L99PM60J; L99PM62GXP; L5963D-L5963Q
Easy board
L5150GJ; L5300AH7; L4995AK
Evaluation board
L99PM62GXP; L99PM72GXP
Discovery kit
L99PM62GXP
EVAL-L5963
Evaluation board
L5963 (PowerSSO-36)
EVAL-L5963Q
Evaluation board
L5963 (VQFPN-48)
POWER MANAGEMENT FOR AUTOMOTIVE SYSTEMS
VOLTAGE REGULATORS Part Number
L4938ED
Output Output Regulated tolerance current output (%) voltage (IOUT) (mA) (V)
Package
Number of outputs
SO-20
2
Out1: 5 Out2: Adj
Out1: 100 Out2: 400
L4938EPD
PowerSO-20
2
Out1: 5 Out2: Adj
L4949ED-E
SO-8
1
5
L4949EP-E
SO-20
1
5
Dropout voltage (VDP)
Reset Output
Typ (mV)
Max (mV)
Out1: ±1 Out2: ±2
Out1: 200 Out2: 300
Out1: 400 Out2: 600
•
Out1: 100 Out2: 400
Out1: ±1 Out2: ±2
Out1: 200 Out2: 300
Out1: 400 Out2: 600
•
100
±1
300
500
•
100
±1
300
500
Typ. supply Quiescent Enable Early Watchdog Watchdog current (standby) current at low pin warning timer enable load typ (µA) (μA) • •
•
•
65
•
65
•
200
•
200
L4979D
SO-8
1
5
150
±2
200
400
•
•
•
6
100
L4979MD
SO-20
1
5
150
±2
200
400
•
•
•
6
100
L4988D
SO-8
1
5
200
±2
270
500
•
•
•
Transceiver Part number
Package
Transmission rate
L4969URD-E
SO-20
125 kbaud
L9952GXP
PowerSSO-36
93 L99PM62GXP PowerSSO-36
L4988MD
1
5
200
±2
270
500
•
•
•
93
L4989D
SO-8
1
5
150
±3
180
400
•
•
•
110
L4989MD
SO-20
1
5
150
±3
180
400
•
•
•
110
L4993D
6
SO-20
SO-8
1
5
150
±2
200
400
•
•
•
100
L4993MD
SO-20
1
5
150
±2
200
400
•
L4995RJ
PowerSSO-12
1
5
500
±2
270
500
•
90
L4995RK
PowerSSO-24
1
5
500
±2
270
500
•
90
L4995AJ
PowerSSO-12
1
5
500
±2
270
500
•
•
3
90
L4995AK
PowerSSO-24
1
5
500
±2
270
500
•
•
3
90
L4995J
PowerSSO-12
1
5
500
±2
270
500
•
•
•
3
90
L4995K
PowerSSO-24
1
5
500
±2
270
500
•
•
•
3
90
L5050S
SO-8
1
5
50
±2
500
5
50
SOT-223
1
5
150
±2
500
L5150CJ
PowerSSO-12
1
5
150
±2
500
• (1)
•
55
L5150CS
SO-8
1
5
150
±2
500
• (1)
•
55
L5150GJ
PowerSSO-12
1
5
150
±2
500
• (1)
•
HPAK
1
5
300
±2
500
•
•
PowerSSO-12
1
5
300
±2
500
•
•
•
•
L99PM60J
PowerSSO-16
L5150BNTR
L5300AH7 L5300GJ
PPAK
1
5
300
±2
500
L5300RPT
PPAK
1
5
300
±2
500
(1) Adjustable threshold
20 kbit/s
L99PM72GXP PowerSSO-36
LIN: 20 kbit/s CAN: 1 Mbit/s
•
• •
•
±2%
250 @ ILOAD = 100 mA
5V@ 250 mA
±2%
300 @ ILOAD = 100 mA
LIN transceiver
LIN and HS CAN transceivers
LIN transceiver
5V@ 100 mA
5V@ 250 mA
•
•
400 @ ILOAD = 50 mA
± 4%
•
regulator
•
±2%
300 @ ILOAD = 100 mA
•
4
HSD 7 Ω @ 120 mA
1
HSD 1 Ω @ 400 mA
2
Relay drivers (2 Ω)
4
HSD 7 Ω @ 120 mA
1
HSD 1 Ω @ 400 mA
2
Relay drivers (2 Ω)
2
HSD 7 Ω @ 60 mA
2
Relay drivers (2 Ω)
control and diagnostics • Direct drive feature for HSD
4
HSD 7 Ω@ 120 mA
• Complete 3-channel contact
•
5 V @ ±4 % (3% 400 @ ILOAD = 100 mA @ 50 mA) 50 mA
5V@ 100 mA
5
55
5
55
5
55
5
55 55
LIN and HS CAN transceivers
± 2%
•
300 @ ILOAD = 100 mA
1 •
Description
• Wake-up via CAN for voltage
•
300 @ ILOAD = 100 mA
± 2%
On-board features
•
5 V @ ±4 % (3% 400 @ ILOAD = 100 mA @ 50 mA) 50 mA
2
Basic system chip
• 4 wake-up inputs for contact monitoring
• Fail-safe output • Two op amps for current sense interfacing
• Inhibit input for wake-up from
Power management IC with LIN
external CAN
• Complete 3-channel contact
monitoring interface with programmable cyclic sense functionality • 4 internal PWM timers • Two op amps with rail-to-rail outputs (VS) and low-voltage inputs • Programmable periodic system wake-up feature
• Configurable fail-safe output • ST SPI interface for mode
monitoring interface with programmable cyclic sense HSD 1 Ω@ functionality 400 mA • 4 internal PWM timers • Two operational amps with rail-to-rail outputs (VS) and Relay low-voltage inputs drivers • Programmable periodic (2 Ω) system wake-up feature
Power management IC with LIN and high-speed CAN
Power management IC with LIN
Power management IC with LIN and high-speed CAN supporting selective wake-up functionality according to ISO 11898-6
MULTICHANNEL POWER MANAGEMENT Package
50
•
Fault-tolerant low-speed 5V@ 200 mA CAN transceiver
5V@ 250 mA
L5963
L5964 L5300EPT
LIN: 20 kbit/s CAN: 1 Mbit/s
Voltage regulators Driver stages Drop voltage Driver Outputs Accuracy VDP (typ) Reset Watchdog Outputs description (mV)
100
Part Number •
20 kbit/s
Transceiver description
PowerSSO36 VQFPN-48
VQFPN-48 LQFP64
Vin (V)
Vout (V)
Iout (A)
Frequency
Buck1
3.5 to 26
1 to Vin
2.5
Up to 2MHz
Buck2
3.5 to 26
1 to Vin
3.0
Up to 2MHz
LDO/ST-BY
3.5 to 26
1 to Vin
0.25
-
Buck1
3.3 to 26
0.9 to Vin
3.5
Up to 2.3MHz
Buck2
3.3 to 26
0.9 to Vin
3.5
Up to 2.3MHz
LDO/ ST-BY
3.3 to 26
1 to 10
0.25
-
Topology
Other features
Monolithic, synchronous, voltage mode, internal power switches
• Power goods • High side driver • Independent Enables
• DC-DC parallel mode Monolithic, synchronous, current mode, internal power switches
(7A)
• Watchdog / Reset • Voltage supervisors • Independent Enables
7
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Order code: BRVRSBC0517
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