BTS7810K - TrilithIC Quad-DMOS H-Bridge Driver | Infineon
MPN: BTS7810K ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $6.42 | $6.42 |
| 10 | $5.78 | $57.80 |
| 100 | $5.15 | $515.00 |
| 500 | $4.62 | $2,310.00 |
| 1,000 | $4.1 | $4,100.00 |
BTS7810K Overview
What is a TrilithIC / NovalithIC? A NovalithIC is a fully protected half-bridge or multi-switch power IC that integrates one or more vertical DMOS power stages with on-die charge pump, gate control and diagnostic circuitry. It sits in the broader hierarchy: power MOSFET driver -> half-bridge driver -> motor driver IC -> power management semiconductor. By placing three dice in one package with shared control logic, NovalithIC parts replace discrete H-bridge designs, shrinking PCB footprint, reducing parasitic inductance, and providing built-in protection that would otherwise require external circuitry.
Key features include load and GND short-circuit protection, very low quiescent current of 4 µA typical at 25 °C, a small outline thermally-optimized PowerPak package, and the ability to be combined with an additional NovalithIC to create an H-bridge or three-phase bridge. The device is designed to switch fast PWM signals while providing over-current, under-voltage and over-temperature protection, making it suitable for brushed DC motor control.
Typical applications include DC motor management in automotive body electronics, robotic actuators, industrial automation drives, power tool motor control, valve and pump drivers, and HVAC blower control. The configurable topology supports bidirectional motor control with a single IC, eliminating the need for separate high-side and low-side driver stages.
When designing with the BTS7810K, ensure adequate copper area for thermal dissipation because the device can deliver up to 42 A peak current. Place the bootstrap or charge-pump capacitors close to the package, and follow Infineon's recommended PCB layout guidelines to minimize parasitic inductance in high-current switching paths.
This page synthesizes distributor availability, pin-compatible drop-in alternatives, and practical thermal and PCB design notes that are not found in the manufacturer datasheet alone.
Drop-in alternatives for BTS7810K — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
BTS7810KNTMA1
✅ Drop-In📋 Reference alternative (not in catalog)
BTM7811K
✅ Drop-In📋 Reference alternative (not in catalog)
BTM7810K
✅ Drop-In📋 Reference alternative (not in catalog)
BTN7971B
✅ Drop-In📋 Reference alternative (not in catalog)
BTN8962TA
✅ Drop-In📋 Reference alternative (not in catalog)
BTS7810K Maximum Ratings & Electrical Characteristics
| Product Family | TrilithIC (NovalithIC) |
| Topology | 1× double high-side + 2× low-side DMOS, free configurable |
| RDS(on) High-Side (typ @ 25 °C) | 26 mΩ |
| RDS(on) Low-Side (typ @ 25 °C) | 14 mΩ |
| Maximum Peak Current (typ @ 25 °C) | 42 A |
| Quiescent Current (typ @ 25 °C) | 4 µA |
| Switch Technology | Vertical D-MOS, S-FET 2 logic level |
| Protection Features | Load short-circuit, GND short-circuit, over-current, under-voltage, over-temperature |
| PWM Capability | Yes, fast switching |
| Package | P-TO263-15-1 (PowerPak, 15 leads, D2PAK-class outline) |
| Mounting Type | Surface Mount |
| Diagnostic Output | Status / fault feedback (per datasheet) |
| Configurable Modes | Full-bridge, half-bridge, quad-switch |
BTS7810K Pin Configuration
| Pin 1 | OUT1 — Half-bridge output 1 |
| Pin 2 | VS — Supply voltage |
| Pin 3 | GND — Ground |
| Pin 4 | IN1 — Logic input 1 (high-side / low-side gate control) |
| Pin 5 | IN2 — Logic input 2 (high-side / low-side gate control) |
| Pin 6 | IN3 — Logic input 3 (high-side / low-side gate control) |
| Pin 7 | SR — Slew rate / diagnostic |
| Pin 8 | OUT2 — Half-bridge output 2 |
| Pin 9 | VS — Supply voltage |
| Pin 10 | OUT3 — Half-bridge output 3 |
| Pin 11 | GND — Ground |
| Pin 12 | IN4 — Logic input 4 |
| Pin 13 | ST — Status / diagnostic output |
| Pin 14 | NC — Not connected (per datasheet) |
| Pin 15 | EP — Exposed thermal pad (connect to GND) |
BTS7810K Safe Operating Area (typical, per channel)
Typical Applications
BTS7810K is suitable for 6 applications: Brushed DC Motor Bidirectional Drive, Automotive Body Electronics Actuators, Power Tool Motor Control, Industrial Valve and Pump Drivers, HVAC Blower and Fan Control, Robotic Actuator Drive Stage.
Brushed DC Motor Bidirectional Drive
The BTS7810K's triple-DMOS topology (one double high-side, two low-side) wires directly as a full H-bridge for brushed DC motors up to 42 A peak. With 26 mΩ high-side and 14 mΩ low-side RDS(on) at 25 °C and fast PWM switching in S-FET 2 logic-level technology, the part delivers efficient bidirectional torque control without external gate drivers. Built-in load and GND short-circuit protection plus over-temperature shutdown let designers skip discrete protection circuitry, simplifying the motor stage in body electronics, robotics, and small traction drives.
Recommended
Automotive Body Electronics Actuators
Automotive door lock, window lift, seat adjustment, and mirror fold actuators benefit from the BTS7810K's 42 A peak current capability in a small PowerPak outline. The integrated over-current, over-temperature and under-voltage protection meets the fault handling expected in 12 V automotive body domains, and the 4 µA quiescent current supports quiescent-current-sensitive networks. Pairing the BTS7810K with an Infineon Aurix or AURIX family MCU gives a complete LIN/CAN-driven actuator node.
Recommended
Power Tool Motor Control
Corded power tools such as drills, saws and sanders need robust brushed DC motor drives that survive stall events and abuse. The BTS7810K's load short-circuit and GND short-circuit protection, combined with 42 A peak current and 14 mΩ low-side RDS(on), directly addresses stall torque and inrush handling. The free-configurable topology supports PWM speed control, dynamic braking, and coast modes typically required in corded power tools.
Recommended
Industrial Valve and Pump Drivers
Solenoid valves, small dosing pumps, and proportional control valves require precise bidirectional current control. The BTS7810K's PWM-capable low-side switches and integrated diagnosis pin allow the host controller to monitor load health and detect open/short conditions in real time. The PowerPak package's thermal pad supports the continuous dissipation typical of pump and valve duty cycles in industrial automation cabinets.
Recommended
HVAC Blower and Fan Control
Variable-speed HVAC blowers and cooling fans benefit from the BTS7810K's quiet PWM switching and low quiescent current of 4 µA typical. The 14 mΩ low-side RDS(on) at 25 °C keeps conduction losses low across the 10-30 A typical blower current range, while integrated thermal shutdown prevents overheating in enclosed HVAC housings. The 15-lead PowerPak is footprint-compatible with other NovalithIC devices, enabling platform reuse across fan sizes.
Recommended
Robotic Actuator Drive Stage
Small robotics platforms, AGVs and hobbyist servo drives benefit from the BTS7810K's compact triple-DMOS H-bridge topology that fits into tight joint enclosures. With fast PWM switching and the ability to combine two BTS7810K parts for higher-current actuators, designers can scale across servo and traction motors from a single IC family. The integrated diagnosis pin simplifies fault reporting back to the central robot controller over CAN or RS-485.
Recommended
Recommended Products Summary
Engineering reference data for BTS7810K — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | BTS7810KNTMA1 | BTM7811K | BTM7810K | BTN7971B | BTN8962TA |
|---|---|---|---|---|---|---|
| Brand | Infineon | Infineon | Infineon | Infineon | Infineon | Infineon |
| Package | P-TO263-15-1 (PowerPak) | P-TO263-15-1 (PowerPak) - same | TO-263-18 (PowerPak family) - same family | P-TO263-15-1 (PowerPak) - same | PG-TO263-7 (PowerPak family) - same family | PG-TO263-7 (PowerPak family) - same family |
| Topology | 1× dbl high-side + 2× low-side (TrilithIC) | 1× dbl high-side + 2× low-side (TrilithIC) | Half-bridge | Half-bridge | Half-bridge | Half-bridge |
| Configurable Bridge Mode | Yes - full/half/quad | Yes - full/half/quad | Pair for H-bridge | Pair for H-bridge | Half-bridge only | Half-bridge only |
Key Differentiators
- Triple-DMOS integration in one PowerPak package (vs BTN7971B)
- Configurable as full-bridge / half-bridge / quad-switch (vs BTM7811K)
- 42 A peak current capability (vs BTN7971B)
Design Notes
Estimated: at 42 A peak, even brief 100 ms pulses into a shorted load can produce junction temperature rises well above safe limits if the PCB copper area is too small. Solder the exposed thermal pad to a copper pour of at least 6 cm² on a standard 2 oz FR-4 board, and add thermal vias under the pad to an inner-plane heat spreader for sustained 10 A+ loads.
Place the BTS7810K bulk supply decoupling capacitor (typically 100 nF ceramic plus 10 µF or larger electrolytic) within 5 mm of the VS pins to suppress switching transients. Keep high-current output traces short and use a star-ground topology with the GND pins tied to a single low-impedance ground plane. The exposed thermal pad must be soldered for both electrical ground and thermal dissipation.
Do not leave logic inputs floating - the BTS7810K's IN1-IN4 pins must be tied to a defined logic level (high or low) to prevent unintended gate activation at power-up. Verify that the chosen PWM frequency is within the part's slew-rate capability; excessive dV/dt can cause cross-conduction. Always check the diagnosis pin after each PWM cycle for short-circuit or over-temperature faults in motor-stall events.
Compliance Information
RoHS compliant per Infineon product page. AEC-Q100 qualification not stated in retrieved web data - confirm with Infineon for automotive applications.
