L9352B STMicroelectronics Integrated Circuit (Small Outline Packages) In Stock
STMicroelectronics L9352B is a quad N-channel power switch and driver IC with 2.5A continuous and 5A peak output current in a PowerSO-36 package. It features built-in overcurrent and thermal protection for robust load driving. Available with worldwide distribution for automotive and industrial control applications.
- Manufacturer
- STMicroelectronics
- Package
- Small Outline Packages
- Pin Count
- 36
- Lifecycle
- ACTIVE
- Datasheet
- L9352B Datasheet PDF
- Category
- Integrated Circuit
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of L9352B?
- Quad N-channel output driver delivering 2.5A continuous and 5A peak current per channel, suitable for driving solenoids, relays, and DC motors
- Integrated overcurrent and thermal protection circuitry safeguarding both the IC and load without external protection components
- 4-channel current sink architecture with buffer/inverter-based peripheral driver interface, simplifying MCU-to-load signal routing
- PowerSO-36 package with exposed bottom pad for enhanced thermal dissipation, enabling compact high-current PCB designs
What is L9352B used for?
The L9352B is designed for automotive body control modules and industrial PLC output stages where multiple inductive loads such as solenoid valves, relays, and small DC motors must be driven simultaneously from a single IC. Its 4-channel architecture with 5A peak current per channel supports direct drive of automotive actuators operating from 12V or 24V battery rails. The built-in thermal and overcurrent protection makes it well-suited for under-hood automotive environments where load faults and temperature extremes are routine.
What are the specifications of L9352B?
| YTEOL | 7.15 |
| Built-in Protections | OVER CURRENT; THERMAL |
| Driver Number of Bits | 4 |
| Interface IC Type | BUFFER OR INVERTER BASED PERIPHERAL DRIVER |
| JESD-30 Code | R-PDSO-G36 |
| Number of Functions | 4 |
| Output Current Flow Direction | SINK |
| Output Peak Current Limit-Nom | 5A |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SSOP36,.56 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, HEAT SINK/SLUG, SHRINK PITCH |
| Peak Reflow Temperature (Cel) | NOT SPECIFIED |
| Qualification Status | Not Qualified |
| Supply Voltage-Max | 5.5V |
| Supply Voltage-Min | 4.5V |
| Supply Voltage-Nom | 5V |
| Supply Voltage1-Max | 18V |
| Supply Voltage1-Min | 4.8V |
| Surface Mount | YES |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.65mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | NOT SPECIFIED |
| Turn-off Time | 30 µs |
| Turn-on Time | 20 µs |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.60 |
Where can I find the L9352B datasheet?
L9352B Datasheet DownloadOfficial datasheet from STMicroelectronics
What are equivalent replacements for L9352B?
Compatible alternatives and drop-in replacements for L9352B:
Frequently Asked Questions
What is the peak output current the L9352B can sink per channel, and how many independent output channels does it provide?
The L9352B provides 4 independent N-channel output drivers, each capable of sinking up to 5A peak current with a 2.5A continuous rating. This makes each channel sufficient to drive medium-sized solenoids and relays directly from a microcontroller logic signal. The 4-channel count allows a single L9352B to replace four discrete power transistors in automotive body control or industrial output modules.
What built-in protections does the L9352B include, and how do they benefit automotive designs?
The L9352B integrates overcurrent protection and thermal shutdown circuitry on-chip. Overcurrent protection limits current during short-circuit conditions on any of the 4 output channels, preventing board damage. Thermal shutdown activates when the junction temperature exceeds safe limits, which is critical in automotive under-hood environments where ambient temperatures can reach 85°C or higher. Together these protections eliminate the need for external fuses or current-sense circuits on each channel.
How does the PowerSO-36 package with exposed bottom pad help manage heat in a 4-channel 5A driver design?
The PowerSO-36 package includes an exposed thermal pad on the bottom that connects directly to the die, significantly reducing the junction-to-board thermal resistance compared to standard SSOP36 packages without bottom pads. In a 4-channel design where all channels simultaneously sink 2.5A continuous each — a total of 10A — effective heat sinking through the bottom pad to the PCB copper pour is essential to maintain junction temperature within the rated limit and avoid thermal shutdown.
For an industrial PLC output card driving 4 solenoid valves at 24V, why is the L9352B a suitable single-chip solution?
A typical 24V solenoid valve draws 200mA to 500mA steady-state, well within the L9352B's 2.5A per-channel continuous rating, leaving ample headroom for inrush transients up to 5A peak. The 4-channel N-channel sink configuration matches the standard PLC output topology where the high side is tied to the 24V rail and the IC pulls the low side to ground. Built-in overcurrent and thermal protection removes the need for individual channel fusing, simplifying the output card BOM and layout.
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Why Buy from FindMyChip
About STMicroelectronics
STMicroelectronics is a global semiconductor leader serving customers across the spectrum of electronics applications. ST's products are found in a wide range of applications including automotive, industrial, personal electronics, and communications.
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