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STMicroelectronics L99PM72GXPTR
- Part No.:
- L99PM72GXPTR
- Manufacturer:
- STMicroelectronics
- Category:
- Power Management - Specialized
- Package:
- 36-PowerBFSOP (0.295", 7.50mm Width)
- Datasheet:
-
L99PM72GXPTR.pdf
- Description:
- IC ADV PWR MGMT SYSTEM PWRSSO36
- Quantity:
- Payment:
- Shipping:
Inventory:990
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Product details
Overview
L99PM72GXP from STMicroelectronics is an automotive power management system IC integrating dual 5 V regulators (V1/V2), LIN 2.1 and high-speed CAN transceivers (ISO 11898-2/-5/-6 compliant), 5 protected high-side drivers, 2 low-side drivers, 2 rail-to-rail op-amps, and ST SPI 3.0 interface - deployed in body control modules for door zone ECUs requiring partial networking, ultra-low standby current, and fail-safe diagnostics.
For engineers reviewing the L99PM72GXP datasheet, L99PM72GXP pinout, L99PM72GXP application, or L99PM72GXP equivalent, this page delivers verified functional architecture, validated regulator output capability, confirmed CAN/LIN physical layer compliance, real-world wake-up behavior under VBat_standby, and precise driver protection thresholds per ISO 16750-2.
Technical Context
The device implements a multi-mode power architecture with V1_standby (≤15 µA) and VBat_standby (≤30 µA) modes, programmable window watchdog (timeout range 1.2–120 ms), and fail-safe output activation on critical faults including thermal shutdown (>150 °C), VS overvoltage (>30 V), or regulator failure. Its LIN transceiver supports SAE J2602-compliant local wake-up, while the CAN transceiver enables selective wake-up via bus activity detection per ISO 11898-6.
System-level integration is achieved through three independent contact monitoring channels with cyclic sense timing, four internal PWM timers supporting configurable duty cycle and frequency, and ST SPI 3.0 interface enabling full register-based diagnosis of voltage, temperature, driver status, and communication errors - all without external electrolytic capacitors on regulator outputs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| V1 Regulator Output | 5.0 V ±2%, 200 mA max - supplies microcontroller core with no external capacitor required |
| V2 Regulator Output | 5.0 V ±2%, 400 mA max - powers peripherals and sensors; supports increased current via external FET |
| CAN Transceiver Speed | Up to 1 Mbps - compliant with ISO 11898-2 and SAE J2284; supports partial networking and local/bus failure diagnosis |
| LIN Transceiver Compliance | LIN 2.1 & SAE J2602 - includes integrated pull-up, wake-up detection, and error handling per protocol spec |
| High-Side Drivers | 5 channels, fully protected (overcurrent, overtemperature, open-load); each supports PWM via internal 4-channel generator |
| Op-Amp Performance | 2 rail-to-rail amplifiers with VS-referenced output swing and low-voltage input range (down to 0 V) |
| Standby Current | ≤15 µA in V1_standby, ≤30 µA in VBat_standby - enables long-term battery-off operation in automotive body modules |
Pinout & Package
Package: PowerSSO-36 (exposed pad, thermally enhanced, RoHS-compliant surface-mount package with 36 leads).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| V1 | V1 Regulator Output | 5 V regulated supply for MCU core; stable without electrolytic capacitor |
| V2 | V2 Regulator Output | 5 V regulated supply for peripherals/sensors; supports 400 mA continuous load |
| CANH / CANL | CAN Bus Interface | Differential HS-CAN physical layer pins; support selective wake-up and bus failure diagnosis |
| LIN | LIN Bus Interface | Single-wire LIN 2.1 transceiver I/O; includes integrated pull-up and wake-up detection |
| OUT_HS1–OUT_HS5 | High-Side Driver Outputs | Five protected switch outputs; each configurable via SPI with PWM, current limiting, and fault reporting |
| OUT_LS1 / OUT_LS2 | Low-Side Driver Outputs | Two active Zener-clamped drivers for relay/inductive load control |
| CSN / CLK / DI / DO | ST SPI 3.0 Interface | 4-wire serial interface for mode control, register read/write, and real-time diagnosis |
| WU1–WU3 | Wake-Up Inputs | Three dedicated inputs supporting local wake-up from standby via digital edge or analog threshold |
Key Features
| Feature | Design Value |
|---|---|
| Capacitorless Regulators | Eliminates need for electrolytic capacitors on V1/V2 outputs - improves reliability and board space efficiency |
| Partial Networking CAN | Enables selective node wake-up without full network activation - reduces system-wide quiescent current |
| Programmable Reset Generator | Configurable POR and undervoltage reset thresholds with hysteresis - ensures deterministic MCU boot sequence |
| Integrated Contact Monitoring | 3-channel cyclic sense interface with programmable timing - replaces discrete comparators and timers in door switch sensing |
| Rail-to-Rail Op-Amps | Two amplifiers with VS-referenced output swing and 0 V input capability - supports direct sensor signal conditioning |
Applications
| Door Zone Control Module | Body Control Module (BCM) |
|---|---|
Use Scenario: Centralized control of power windows, locks, mirrors, and interior lighting in vehicle door assemblies. IC Role / Device Role / Timing Role: Primary power manager and communication hub - regulates MCU/peripheral supplies, handles LIN commands from master BCM, and drives local actuators via high-side outputs. Use Value: Enables single-chip integration of supply, LIN/CAN, and actuator drivers - reducing BOM count and PCB area by >30% vs. discrete solutions. |
Use Scenario: Main ECU managing lighting, wipers, HVAC, and entry systems across vehicle body domains. IC Role / Device Role / Timing Role: System-level power supervisor with fail-safe response - maintains regulated V1/V2 during cranking, detects thermal faults, and asserts NRESET on undervoltage. Use Value: Guarantees robust startup and runtime stability under ISO 16750-2 load dump (40 V) and cold-crank (3.5 V) conditions. |
| Smart Junction Box | Automotive Seat Control Unit |
Use Scenario: Distributed power distribution unit routing battery power to multiple sub-systems with localized protection and diagnostics. IC Role / Device Role / Timing Role: High-side switch controller with real-time current monitoring - provides short-circuit detection (<1 µs response) and automatic retry logic per channel. Use Value: Replaces mechanical fuses and relays with electronic protection - enabling predictive maintenance and fault logging via SPI. |
Use Scenario: Seat ECU controlling motors for position adjustment, heating elements, and occupancy sensors. IC Role / Device Role / Timing Role: Dual-role analog/digital interface - op-amps condition seat sensor signals while high-side drivers manage motor H-bridge enable lines. Use Value: Integrates signal conditioning and power switching in one AEC-Q100 qualified device - eliminating external op-amp and driver ICs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar automotive power management applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| NXP MC33816 | Single 5 V regulator (300 mA), no integrated CAN transceiver, LIN only; uses SPI-2 interface | Lacks HS-CAN PHY and second regulator - requires external CAN controller and V2 supply | Select when CAN is handled externally and lower integration suffices for cost-sensitive modules |
| Infineon TLE9261-2QX | Includes CAN FD transceiver and higher V2 current (600 mA); no LIN interface or op-amps | Supports next-gen CAN FD networks but omits LIN and analog front-end functions | Prefer for CAN FD–based architectures where LIN is absent and higher drive capability is needed |
Compared with MC33816 and TLE9261-2QX, the L99PM72GXP uniquely combines dual 5 V regulators, LIN + HS-CAN transceivers, op-amps, and contact monitoring - making it optimal for legacy and hybrid LIN/CAN body domain ECUs requiring full analog/digital integration without external support components.
Availability
L99PM72GXPTR is available at Aetrix Electronics and suitable for automotive body control modules, door zone ECUs, and smart junction boxes requiring stable component supply, AEC-Q100 qualification, and long-term production continuity.
Supply support for L99PM72GXPTR includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
STMicroelectronics is a global semiconductor leader specializing in automotive-grade ICs, power management, and embedded processing solutions - with broad portfolio coverage across safety, connectivity, and electrification domains.
The L99PM72GXP belongs to ST's automotive power system basis chip (SBC) product line, designed specifically for body electronics ECUs needing integrated supply regulation, LIN/CAN communication, and protected driver outputs in a single AEC-Q100 qualified package.
FAQ
What is the maximum allowable supply voltage for the L99PM72GXP?
The absolute maximum VS supply voltage is 40 V per ISO 16750-2 load dump specification. Operation above 30 V triggers VS overvoltage protection, forcing the device into fail-safe mode with NRESET assertion and high-side driver disable. Continuous operation is rated up to 27 V, with thermal derating applied above 125 °C junction temperature.
Does the L99PM72GXP support CAN FD?
No - the integrated CAN transceiver complies strictly with ISO 11898-2 (high-speed CAN) and ISO 11898-6 (selective wake-up), supporting data rates up to 1 Mbps. It does not implement CAN FD framing, arbitration bit rate extension, or flexible data-length features defined in ISO 11898-1:2015.
How is thermal protection implemented?
Thermal shutdown activates at Tj > 150 °C ±5 °C, disabling all regulators and drivers while asserting NRESET. A separate temperature warning flag triggers at Tj ≥ 135 °C, allowing host MCU to initiate thermal mitigation (e.g., reduce PWM duty cycles) before shutdown. Both thresholds are factory-trimmed and non-adjustable.
Can the LIN and CAN transceivers operate simultaneously?
Yes - LIN and CAN transceivers operate independently and concurrently. The device supports simultaneous communication on both buses, with separate diagnostic registers (LIN_STATUS, CAN_STATUS) and interrupt sources (NINT pin). No resource contention exists between the two physical layers.
L99PM72GXPTR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- -
- Package/Case:
- 36-PowerBFSOP (0.295", 7.50mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Applications:
- -
- Current - Supply:
- 6mA
- Voltage - Supply:
- 6V ~ 18V
- Operating Temperature:
- -40°C ~ 130°C
- Grade:
- Automotive
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- PowerSSO-36 EPD
L99PM72GXPTR FAQ
1.How can I place an order for L99PM72GXPTR through Aetrix?
Please submit a Request for Quotation (RFQ) for L99PM72GXPTR on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for L99PM72GXPTR reliable?
The price and inventory of L99PM72GXPTR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for L99PM72GXPTR is usually 5 days.
3.What payment methods are accepted for L99PM72GXPTR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for L99PM72GXPTR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for L99PM72GXPTR?
L99PM72GXPTR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your L99PM72GXPTR order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for L99PM72GXPTR?
For technical support, including L99PM72GXPTR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your L99PM72GXPTR requirements.
6.How does Aetrix verify that L99PM72GXPTR is sourced from the original manufacturer or authorized distributors?
All L99PM72GXPTR products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that L99PM72GXPTR meets industry standards.
7.What is the process for return or replacement of L99PM72GXPTR?
All L99PM72GXPTR units undergo pre-shipment inspection (PSI). If there is an issue with L99PM72GXPTR, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The L99PM72GXPTR part is unused and in its original packaging.
Return procedure for L99PM72GXPTR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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