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L9708
STMicroelectronics
IC AED SMARTPOWER
1647 Pcs New Original In Stock
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5.0 / 5.0
- (178 Ratings)
L9708
Product Overview
13107305
DiGi Electronics Part Number
L9708-DGManufacturer
STMicroelectronics
L9708
Description
IC AED SMARTPOWERInventory
1647 Pcs New Original In Stock
-
Quantity
Minimum 1
Minimum 1
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L9708 Technical Specifications
Category
Specialized ICs
Packaging
-
Series
*
Product Status
Active
DiGi-Electronics Programmable
Not Verified
Base Product Number
L9708
Datasheet & Documents
Datasheets
Download L9708 Product Specification (PDF)
HTML Datasheet
L9708-DG
Environmental & Export Classification
RoHS Status
ROHS3 Compliant
Moisture Sensitivity Level (MSL)
3 (168 Hours)
REACH Status
REACH Unaffected
ECCN
EAR99
HTSUS
8542.39.0001
Additional Information
Standard Package
31
Reviews
5.0/5.0-(Show up to 5 Ratings)
December 02, 2025
L'accueil chez DiGi Electronics est chaleureux, et les produits sont de première classe.
December 02, 2025
Their products have a reputation for longevity and robustness.
December 02, 2025
High-quality packaging complemented the product’s sturdy design, ensuring satisfaction.
December 02, 2025
Every order from DiGi Electronics arrives faster than I expected, perfect for my urgent needs.
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Frequently Asked Questions (FAQ)
What are the critical design-in risks when replacing the L9708 with a competitor like the Infineon BTS716G in a 12V automotive smart power switch application?
When substituting the L9708 with the Infineon BTS716G, key risks include differences in overcurrent protection thresholds, thermal shutdown behavior, and diagnostic feedback accuracy—especially under partial short-circuit conditions. The L9708 uses a patented current folding technique for precise foldback current limiting, while the BTS716G employs a fixed current limit that may not provide the same level of protection during intermittent faults. Additionally, the L9708’s integrated reverse battery protection and lower quiescent current make it more suitable for always-on automotive loads. Verify compatibility of the fault signaling logic (active-low vs. open-drain) and ensure your PCB layout accommodates the different thermal pad requirements to avoid premature thermal shutdown.
How does the L9708’s MSL 3 rating impact board-level reliability in high-humidity environments, and what assembly precautions are necessary?
The L9708’s Moisture Sensitivity Level 3 (MSL 3) rating means it can be exposed to ambient conditions for up to 168 hours after dry packing before requiring a bake-out prior to reflow. In high-humidity environments—common in under-hood automotive applications—this increases the risk of popcorning during reflow if moisture absorption exceeds safe limits. To mitigate this, store the L9708 in moisture-barrier bags with desiccant, and if floor life is exceeded, perform a 125°C bake for 24 hours. Additionally, ensure conformal coating is applied post-assembly to prevent long-term moisture ingress into the package, which could degrade bond wires or cause corrosion on exposed leads.
Can the L9708 safely drive inductive loads like solenoids or relays without external flyback diodes, and what are the trade-offs?
Yes, the L9708 integrates active clamp circuitry that manages inductive kickback, allowing direct driving of solenoids or relays without external flyback diodes in most 12V automotive scenarios. However, this comes with trade-offs: the internal clamp dissipates energy as heat during turn-off, which increases junction temperature—especially at high switching frequencies or with high-inductance loads. For loads exceeding 2A peak or operating above 10 Hz, consider adding a parallel Schottky diode to offload energy and reduce thermal stress on the L9708. Always validate thermal performance under worst-case duty cycle using the device’s thermal resistance (RthJA) and ensure adequate PCB copper area for heat spreading.
What makes the L9708 a better choice than the Texas Instruments TPS1H100 for low-side smart power switching in harsh automotive environments?
The L9708 outperforms the TPS1H100 in several harsh-environment scenarios due to its higher transient voltage tolerance (up to 40V continuous, 60V transient), integrated reverse polarity protection, and more granular diagnostic features such as open-load detection in the off-state. Unlike the TPS1H100, which requires an external TVS diode for load dump protection, the L9708’s robust output stage inherently withstands ISO 7637-2 pulses. Additionally, the L9708 provides better accuracy in current sensing (±10% vs. ±20% on the TPS1H100), enabling more reliable fault detection. If your design must survive cold-cranking conditions or frequent load dumps without external components, the L9708 reduces BOM complexity and improves system reliability.
How should I handle ground referencing and PCB layout when using the L9708 in a floating load configuration to avoid false fault reporting?
In floating load configurations—common in automotive lighting or actuator control—the L9708’s diagnostic circuitry can misinterpret ground shifts as open-load faults if the sense ground (SGND) is not properly referenced. Always connect SGND directly to the system ground plane with a low-impedance path, separate from high-current return paths that may introduce voltage drops. Avoid daisy-chaining grounds through long traces or vias. Use a star-ground topology near the L9708, and ensure the Kelvin sense connection for current monitoring is routed differentially back to the microcontroller ADC. Poor grounding can cause ±50 mV offsets, triggering false diagnostics; a solid ground plane beneath the device and minimized loop areas for high-di/dt paths will maintain signal integrity and prevent erroneous fault flags.
Quality Assurance (QC)
DiGi ensures the quality and authenticity of every electronic component through professional inspections and batch sampling, guaranteeing reliable sourcing, stable performance, and compliance with technical specifications, helping customers reduce supply chain risks and confidently use components in production.
L9708 CAD Models
STMicroelectronics L9708 PCB symbols & footprints
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