Power management Driving smart power in automotive

Transcription

1 management Driving smart power in automotive

2 Voltage regulators 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. Easy implementation High reliability Limited number of external components needed Low dropout voltage Low output voltage tolerance Low quiescent current Operating DC supply voltage : Up to 0V Enable input for enabling/disabling the voltage regulators Reset circuit sensing the output voltage down to V Programmable reset pulse delay with external capacitor Programmable watchdog timer with external capacitor Thermal shutdown and short circuit protection Wide range of output currents (from 00 to 500 ma) 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 Motor LDO LDO Body control module (BCM) Window lift Wide temperature range (T Climate control (HVAC) J -0 to 50 C) and more 3 train LED Light control For L99PM60J, L995GXP, L99PM6GXP and L99PM7GXP HVAC control module Sunroof module For L995GXP, L99PM6GXP and L99PM7GXP Door zone Gearbox For L99PM6GXP and L99PM7GXP Seat positioning More For L99PM7GXP Electric park brake SPC5 3-bit Automotive MCUs FAIL SAFE WAKE UP SPI OPAMP TYPICAL APPLICATIONS FOR L99PM6GXP AND L99PM7GXP WD HSDs DC MOTOR DRIVER Bulb M LED Resistive load Hall-effect sensor APPLICATIONS Door zone Window lift Seat module Trunk module Trailer module Sunroof module V BAT < 300mA current* > 300mA 5V_ NRESET VREG OUT_HS V BAT Reset L550BNTR Reset Enable Enable Enable SPC56D 3-bit Microcontroller Peripheral or Sensor Supply 5V_ DI DO CLK CSN VREG SPI State Control OUT OUT OUT3 / FSO OUT REL M L938ED* L938EPD* L550GJ Early Warning Early Warning Early Warning Timer L979D L979MD L99ED-E L99EP-E L550CJ L550CS Timer & Enable L988D L988MD L989D L989MD L993D L993MD L938ED* L938EPD* L5300GJ L995J L995K Timer L995RJ L995RK L995AJ L995AK L5300AH7 L5300RPT L5300EPT VREG CAN CANSUP RXD_C TXD_C CAN_H SPLIT CAN_L RXD_L/NINT TXD_L HS CAN ISO 898. / SAEJ60 PGND Wake Up WU... WU3 AGND REL OP+ OP - OPOUT OP+ OP - OPOUT WU WU WU3 µc ADC OUT Cyclic Contact Monitoring * L938ED and L938EPD dual output voltage devices (see table on page 6)

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. 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. VOLTAGE MONITORS FREQUENCY > MHz BUCK BUCK Telematics BATTERY ENABLE LDO / REGULATED VOLTAGE PINS ST-BY VOLTAGES Navigation EVALUATION KITS Clusters INTERNAL USB hubs SWITCHES and more 5 WATCHDOG / RESET HSD APPLICATIONS Infotainment (head units, sound systems) Only L596 Only L5963 TYPICAL USB APPLICATION BATTERY L5963 x 5V 3.3V EV-AUTO-LDOS : Easy boards with the targeted device mounted on an optimized PCB allowing for simple connection to an external environment to help ensure an effective design-in phase. EVAL-L99PM6-7 : Dedicated evaluation board with L99PM6GXP-L99PM7GXP daughter boards, drivers & user-friendly GUI. STM8A-DISCOVERY : Discovery kit with STM8AF and STM8AL 8-bit MCU evaluation boards with integrated L99PM6GXP power management IC CTRL 3.3V DATA 5V USB SOCKET EVAL-L5963 and EVAL-5963Q : Evaluation boards supporting the L5963 multichannel voltage regulator USB HUB CONTROLLER Order code Evaluation tool Components SAMPLES-AUTOPMIC Sample kit L995K; L550BN; L5300GJ; L99PM60J; L99PM6GXP; L5963D-L5963Q EV-AUTO-LDOS Easy board L550GJ; L5300AH7; L995AK DATA 5V USB SOCKET EVAL-L99PM6-7 Evaluation board L99PM6GXP; L99PM7GXP STM8A-DISCOVERY Discovery kit L99PM6GXP EVAL-L5963 Evaluation board L5963 (SSO-36) EVAL-L5963Q Evaluation board L5963 (VQFPN-8)

4 VOLTAGE REGULATORS Part Number Package Number of outputs L938ED SO-0 L938EPD SO-0 Regulated output voltage (V) Out: 5 Out: Adj Out: 5 Out: Adj current (IOUT) (ma) Out: 00 Out: 00 Out: 00 Out: 00 tolerance (%) Out: ± Out: ± Out: ± Out: ± Dropout voltage (VDP) Typ (mv) Out: 00 Out: 300 Out: 00 Out: 300 Max (mv) Out: 00 Out: 600 Out: 00 Out: 600 Reset Enable pin Early warning timer enable Typ. supply current (standby) (μa) Quiescent current at low load typ (µa) L99ED-E SO ± L99EP-E SO ± L979D SO ± L979MD SO ± L988D SO ± L988MD SO ± L989D SO ± POWER MANAGEMENT FOR AUTOMOTIVE SYSTEMS Part number Package Transmission rate L969URD-E SO-0 5 kbaud L995GXP SSO-36 0 kbit/s L99PM6GXP SSO-36 : 0 kbit/s CAN: Mbit/s Transceiver Voltage regulators Driver stages Drop voltage Transceiver s Accuracy VDP (typ) Reset s description (mv) Fault-tolerant low-speed CAN and HS CAN s 00 ma ± % I LOAD ± % I LOAD ± % ± % ± % 50 ma) I LOAD 50 ma I LOAD I LOAD 50 ma Driver description On-board features Wake-up via CAN for voltage regulator 0 ma wake-up inputs for contact HSD 00 ma drivers 0 ma HSD 00 ma drivers monitoring Fail-safe output Two op amps for current sense interfacing Inhibit input for wake-up from external CAN Complete 3-channel contact monitoring interface with programmable cyclic sense functionality internal PWM timers Two op amps with rail-to-rail outputs () and low-voltage inputs Programmable periodic system wake-up feature Description Basic system chip management IC with management IC with and high-speed CAN L989MD SO ± L99PM60J SSO-6 0 kbit/s ± % I LOAD 60 ma Configurable fail-safe output ST SPI interface for mode control and diagnostics Direct drive feature for HSD L993D SO ± drivers L993MD SO ± HSD 7 Ω@ Complete 3-channel contact L995RJ SSO ± I ± % LOAD 0 ma monitoring interface with management HSD Ω@ programmable cyclic sense IC with and and 00 ma functionality high-speed : 0 kbit/s 6 L995RK SSO ± L99PM7GXP SSO-36 HS CAN internal PWM timers CAN supporting 7 CAN: Mbit/s Two operational amps with s rail-to-rail outputs () and selective wake-up ± % (3% I LOAD low-voltage inputs functionality L995AJ SSO ± ma) 50 ma Programmable periodic according to system wake-up feature ISO L995AK SSO ± management IC with L995J SSO ± L995K SSO ± L5050S SO ± L550BNTR SOT ± MULTICHANNEL POWER MANAGEMENT Part Number Package V in (V) V out (V) I out ( A) Frequency Topology Other features Buck 3.5 to 6 to V in.5 Up to MHz L550CJ SSO ± 500 () 55 L550CS SO ± 500 () 55 L5963 SSO36 VQFPN-8 Buck 3.5 to 6 to V in 3.0 Up to MHz Monolithic, synchronous, voltage mode, internal power switches goods High side driver Independent Enables L550GJ SSO ± 500 () 5 55 LDO/ST-BY 3.5 to 6 to V in L5300AH7 HPAK ± L5300GJ SSO ± L5300EPT PPAK ± L596 VQFPN-8 LQFP6 Buck 3.3 to to V in 3.5 Up to.3mhz Buck 3.3 to to V in 3.5 Up to.3mhz Monolithic, synchronous, current mode, internal power switches DC-DC parallel mode (7A) / Reset Voltage supervisors Independent Enables L5300RPT PPAK ± LDO/ ST-BY 3.3 to 6 to () Adjustable threshold

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