Product overview
Description
The L9951 is a microcontroller driven multifunctional rear door actuator driver for automotive applications. Up to two DC motors and two grounded resistive loads can be driven with three half bridges and two highside drivers. The integrated standard serial peripheral interface (SPI) controls all operation modes (forward, reverse, brake and high impedance). All diagnostic informations are available via SPI.
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All features
- Overload diagnostic for all outputs
- Open load diagnostic for all outputs
- Charge Pump output for reverse polarity protection
- Programmable PWM control of all outputs
- Current monitor output for all highside drivers
- All outputs short circuit protected
- One half bridge for 7.4A load (ron= 150mΩ)
- Two highside drivers for 1.25A load (ron= 800 mΩ)
- Two half bridges for 5A load (ron= 200mΩ)
- Very low current consumption in standby mode (IS< 3μA, typ. Tj≤85 ˚C)
- All outputs over temperature protected
- Programmable Softstart function to drive loads with higher inrush currents (i.e.current >7.4A, >5A, >1.25A)
Circuit Diagram
Recommended for you
Related Applications
Automotive
All resources
Resource title | Version | Latest update |
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Product Specifications (2)
Resource title | Version | Latest update | ||
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3.0 | 19 Sep 2016 | 19 Sep 2016 | ||
9.0 | 19 Sep 2016 | 19 Sep 2016 |
Selection Guides (1)
Resource title | Version | Latest update | ||
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6.0 | 21 Jun 2024 | 21 Jun 2024 |
Brochures (1)
Resource title | Version | Latest update | ||
---|---|---|---|---|
1.1 | 01 Mar 2022 | 01 Mar 2022 |
EDA Symbols, Footprints and 3D Models
STMicroelectronics - L9951
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3D models
Quality and Reliability
Part Number | Marketing Status | Package | Grade | RoHS Compliance Grade | Material Declaration** |
---|---|---|---|---|---|
L9951 | NRND | PowerSO 36 | Automotive | Ecopack2 | |
L9951TR | Active | PowerSO 36 | Automotive | Ecopack2 | |
L9951XP | NRND | PowerSSO 36 | Automotive | Ecopack2 | |
L9951XPTR | Active | PowerSSO 36 | Automotive | Ecopack2 |
Marketing Status
Package
PowerSO 36
Grade
Automotive
RoHS Compliance Grade
Ecopack2
Marketing Status
Package
PowerSO 36
Grade
Automotive
RoHS Compliance Grade
Ecopack2
Marketing Status
Package
PowerSSO 36
Grade
Automotive
RoHS Compliance Grade
Ecopack2
(**) The Material Declaration forms available on st.com may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.
Sample & Buy
Part Number | Marketing Status | Budgetary Price (US$)*/Qty | Order from ST | Order from distributors | Package | Packing Type | RoHS | Country of Origin | ECCN (US) | ECCN (EU) | Operating Temperature (°C) (min) | Operating Temperature (°C) (max) | ||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
L9951 | | | Available at distributors Distributor availability of L9951
Distributor reported inventory date: | | | | Buy from Distributor | | ||||||||||||||||||||
L9951XPTR | | | Available at 1 distributors Distributor availability of L9951XPTR
Distributor reported inventory date: 3/4/2025 | | | | Buy from Distributor | | ||||||||||||||||||||
L9951XP | | | Available at distributors Distributor availability of L9951XP
Distributor reported inventory date: | | | | Buy from Distributor | | ||||||||||||||||||||
L9951TR | | | Available at distributors Distributor availability of L9951TR
Distributor reported inventory date: | | | | Buy from Distributor | |
L9951 NRND
Part Number:
L9951
Distributor reported inventory date:
Stock
Min.Order
L9951XPTR Active
Part Number:
L9951XPTR
FUTURE
Stock
72000Min.Order
0Distributor reported inventory date: 3/4/2025
Stock
Min.Order
L9951XP NRND
Part Number:
L9951XP
Distributor reported inventory date:
Stock
Min.Order
L9951TR Active
Part Number:
L9951TR
Distributor reported inventory date:
Stock
Min.Order
(*) Suggested Resale Price (USD) per defined quantity for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office or our Distributors