Overview
The L9952GXP, also referred to as L9952XPTR, is a Power Management System IC developed by STMicroelectronics. This integrated circuit is designed to manage power efficiently in various automotive applications. It features two independent low-drop voltage regulators, advanced contact monitoring, and several peripheral functions. The IC is controlled via a standard 24-bit SPI interface, which enables mode control and diagnostic functions. It is particularly suited for automotive Electronic Control Units (ECUs), such as those used in door zone and body control modules.
Key Specifications
| Specification | Value |
|---|---|
| Package | PowerSSO 36 |
| Grade | Automotive |
| RoHS Compliance Grade | Ecopack2 |
| Voltage Regulators | Two 5V low-drop regulators (250mA, 100mA continuous mode) |
| Stand-by Current | VBAT stby: 7μA, V1 stby: 45μA (75μA in cyclic sense) |
| Operating Temperature (°C) | -40 to 150 |
| High Side Drivers | 1 x Out_HS (RDSon,typ = 1 Ω), 4 x for LED or HALL (RDSon,typ = 7 Ω) |
| Relay Drivers | 2 x (RDSon,typ = 2 Ω) |
| LIN Transceiver | LIN 2.1 compliant (SAEJ2602 compatible) |
| SPI Interface | 24-bit for mode control and diagnostic |
Key Features
- Two 5V low-drop voltage regulators (250mA, 100mA continuous mode)
- Low stand-by current: VBAT stby, 7μA; V1 stby, 45μA (75μA in cyclic sense)
- Window watchdog and fail-safe output
- Interrupt output
- Wake-up logic with cyclic contact monitoring
- LIN 2.1 compliant (SAEJ2602 compatible) transceiver
- 24-bit SPI interface for mode control and diagnostic
- High side drivers: 1 x Out_HS (RDSon,typ = 1 Ω), 4 x for LED or HALL (RDSon,typ = 7 Ω)
- Relay drivers: 2 x (RDSon,typ = 2 Ω)
- Outputs are short circuit protected
- 2 Op amps for current sensing in GND return lines
- Temperature warning and thermal shutdown
Applications
The L9952GXP is primarily used in automotive Electronic Control Units (ECUs), such as those in door zone and body control modules. Its features make it suitable for various automotive applications that require robust power management and diagnostic capabilities.
Q & A
- What is the L9952GXP?
The L9952GXP is a Power Management System IC developed by STMicroelectronics, designed for automotive applications.
- What type of voltage regulators does the L9952GXP have?
The L9952GXP features two 5V low-drop voltage regulators, one capable of delivering 250mA and the other 100mA in continuous mode.
- What is the stand-by current of the L9952GXP?
The stand-by current is 7μA for VBAT and 45μA for V1 (75μA in cyclic sense).
- Does the L9952GXP support LIN communication?
Yes, it is LIN 2.1 compliant and compatible with SAEJ2602.
- What type of interface does the L9952GXP use for control and diagnostics?
The L9952GXP uses a 24-bit SPI interface for mode control and diagnostic functions.
- What kind of protection does the L9952GXP offer for its outputs?
The outputs are short circuit protected.
- Does the L9952GXP have temperature monitoring features?
Yes, it includes temperature warning and thermal shutdown features.
- What is the operating temperature range of the L9952GXP?
The operating temperature range is -40°C to 150°C.
- What kind of drivers does the L9952GXP have?
The L9952GXP has high side drivers, relay drivers, and low side drivers.
- Is the L9952GXP suitable for automotive applications?
Yes, it is specifically designed for automotive Electronic Control Units (ECUs).
