STA517B STMicroelectronics Integrated Circuit (Small Outline Packages) In Stock
STMicroelectronics STA517B is a 4-channel half-bridge peripheral driver IC in a 36-pin SOP package, capable of sourcing and sinking up to 8 A peak output current per channel with built-in transient, thermal, and undervoltage protection for driving inductive loads in automotive and industrial applications. Ideal for stepper motor, solenoid, and relay drive circuits. Available from stock with worldwide shipping.
- Manufacturer
- STMicroelectronics
- Package
- Small Outline Packages
- Pin Count
- 36
- Lifecycle
- ACTIVE UNCONFIRMED
- Datasheet
- STA517B Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- ?°C to 70.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of STA517B?
- 4 independent half-bridge output channels supporting source and sink operation up to 8 A peak current per channel
- Integrated transient, thermal shutdown, and undervoltage lockout (UVLO) protection for robust system reliability
- 36-pin SOP-36 (SSOP36) package balances high current capacity with compact SMT footprint
- Half-bridge topology supports bidirectional load control for stepper motor and H-bridge configurations
- Designed for inductive load driving with flyback diode-compatible output stage
What is STA517B used for?
The STA517B is well suited for driving stepper motors, solenoids, and relay banks in automotive body control modules (BCM), HVAC actuators, and industrial automation equipment where multiple half-bridge channels are needed in a single compact IC. Its 8 A peak output current per channel and integrated protections make it reliable for inductive load switching in environments subject to voltage transients and thermal stress. It is commonly used in printer carriage motors, valve actuators, and multi-axis positioning systems requiring 4 independently controlled half-bridge outputs.
What are the specifications of STA517B?
| YTEOL | 2 |
| Built-in Protections | TRANSIENT; THERMAL; UNDER VOLTAGE |
| Interface IC Type | HALF BRIDGE BASED PERIPHERAL DRIVER |
| JESD-30 Code | R-PDSO-G36 |
| Number of Functions | 4 |
| Output Current Flow Direction | SOURCE AND SINK |
| Output Peak Current Limit-Nom | 8A |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SSOP36,.56 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, HEAT SINK/SLUG, SHRINK PITCH |
| Qualification Status | Not Qualified |
| Supply Voltage-Max | 56V |
| Supply Voltage-Min | 10V |
| Supply Voltage-Nom | 50V |
| Surface Mount | YES |
| Technology | BCD |
| Temperature Grade | COMMERCIAL |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.65mm |
| Terminal Position | DUAL |
| Turn-off Time | 100 µs |
| Turn-on Time | 100 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 STA517B datasheet?
STA517B Datasheet DownloadOfficial datasheet from STMicroelectronics
What are equivalent replacements for STA517B?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What is the peak output current per channel in STA517B, and how many channels does it provide?
The STA517B provides 4 half-bridge output channels, each capable of sourcing and sinking up to 8 A peak output current. This makes it suitable for driving medium-power inductive loads such as stepper motor windings, solenoids, and relay coils simultaneously from a single IC, reducing component count and PCB space compared to discrete driver solutions.
Which protection features are built into STA517B to safeguard against inductive load switching faults?
STA517B integrates three key protection mechanisms: transient protection to handle voltage spikes from inductive load switching, thermal shutdown that activates when junction temperature exceeds approximately 150°C, and undervoltage lockout (UVLO) that disables outputs if supply voltage drops below the operational threshold. These protections prevent device damage during short circuits, overtemperature events, and power supply glitches in automotive and industrial environments operating from -40°C to +125°C.
Can STA517B drive a 2-phase stepper motor in full-bridge configuration, and what current level does it support?
Yes, two of STA517B's 4 half-bridge channels can be paired to form one full H-bridge per stepper motor phase, enabling a 2-phase stepper motor drive. Each H-bridge formed this way can deliver up to 8 A peak, sufficient for medium-torque stepper motors used in industrial positioning systems, 3D printer axes, or automotive HVAC actuators requiring precise angular control at step angles of 1.8° or 0.9°.
How does STA517B's SOP-36 package affect PCB layout for a multi-axis motor driver board?
The 36-pin SOP (SSOP36) package with 0.56 inch body width provides a compact SMT footprint that integrates 4 half-bridge channels in a single package, saving board area compared to using 8 discrete power MOSFETs plus gate drivers. On a multi-axis motor driver board, using STA517B allows routing 2 stepper motor axes per IC with all power stage components contained in one 36-pin outline, simplifying PCB layout and reducing the number of decoupling capacitors and protection diodes needed.
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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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