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L9857-TR
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Product Detailed Parameters
- Description：IC GATE DRVR HIGH-SIDE 8SO
- Series：-
- Mfr：STMicroelectronics
- Package：Tape & Reel (TR)
- Driven Configuration：High-Side
- Channel Type：Single
- Number of Drivers：1
- Gate Type：MOSFET (N-Channel)
- Voltage - Supply：10V ~ 18V
- Logic Voltage - VIL, VIH：-
- Current - Peak Output (Source, Sink)：500mA, 500mA
- Input Type：Non-Inverting
- Rise / Fall Time (Typ)：100ns, 100ns
- Operating Temperature：-55°C ~ 150°C (TJ)
- Mounting Type：Surface Mount
- Package / Case：8-SOIC (0.154", 3.90mm Width)
- Supplier Device Package：8-SOIC
- Grade：-
- Qualification：-
- High Side Voltage - Max (Bootstrap)：300 V
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Overview
The L9857-TR is a high-voltage high-side driver manufactured by STMicroelectronics, designed for automotive and industrial applications. It operates with a maximum bootstrap voltage of 300V and delivers a peak current of 500mA. The device features a delay time of 100ns and a fall time of 400ns. Packaged in an 8-SOIC format (0.154" width), it functions as a gate driver within the PMIC category. The component is moisture sensitive and supports CMOS and TTL logic types.
Feature Summary
- High-voltage capability up to 300V for robust operation in demanding environments
- Integrated high-side switching functionality with defined timing characteristics
- Compatible with standard CMOS and TTL logic interfaces
Applications
- Automotive lighting systems
- Industrial motor control circuits
- High-side load driving applications
Procurement Notes
Verify the specific suffix variant against official STMicroelectronics documentation to ensure correct packaging and lead-free status. Confirm moisture sensitivity handling requirements prior to assembly. Cross-reference the exact part number with authorized distributors to avoid counterfeit components. Ensure the procurement channel provides valid traceability documents consistent with the manufacturer's specifications.
Selection Notes
Select this component when a high-side driver capable of handling 300V bootstrap voltages is required. Consider the 500mA peak current limit for load matching. Evaluate the 8-SOIC package constraints for PCB layout. Verify that the operating temperature range and logic compatibility meet the system design requirements before finalizing the bill of materials.
Part Context
The L9857 belongs to STMicroelectronics' portfolio of power management integrated circuits, specifically categorized under gate drivers. This series addresses the need for reliable high-side switching in automotive and industrial sectors. The TR suffix typically indicates tape and reel packaging for automated assembly processes.
Replacement Considerations
Consult official STMicroelectronics substitution guides for verified alternatives. Generic equivalents may not match the 300V rating or specific timing parameters.
