VNH7100BASTR - 12A Automotive H-Bridge Motor Driver | STMicroelectronics
MPN: VNH7100BASTR ✓ Hoạt độngVNH7100BASTR Tóm tắt
An H-bridge motor driver is a power management IC that controls the direction and speed of a brushed DC motor by selectively activating four switches in an H configuration. It belongs to the broader hierarchy of motor drivers -> motion controllers -> power management ICs -> semiconductors. The VNH7100BASTR integrates the full H-bridge and the gate-drive/protection logic in one package, eliminating the bulk of discrete MOSFET bridges, gate drivers, and current-sense amplifiers.
Key features include a 60 mΩ typ. on-resistance per high-side switch that minimizes conduction loss, PWM control up to 20 kHz for precise speed regulation, and a comprehensive protection suite: undervoltage lockout, overvoltage clamp, thermal shutdown with auto-restart, and load current limitation. A dedicated diagnostic feedback pin reports fault conditions to the host MCU. The PowerSSO-16 exposed pad provides a low thermal resistance path, supporting 12 A continuous operation with proper PCB copper.
Typical applications include 12 V automotive brushed DC loads such as power window lifters, seat adjusters, mirror fold actuators, HVAC flaps, and door lock motors. The wide 4 V to 28 V supply range also suits industrial 24 V brush DC drives and battery-powered robotics where a single-IC H-bridge simplifies BOM and PCB area.
When designing with this device, dedicate at least 1 sq in of top-side copper to the exposed pad and stitch a 4×4 thermal via array to the inner/inner-outer copper planes to keep junction temperature in spec. Place a 100 nF X7R ceramic bypass within 2 mm of the VCC pin and a bulk 47 µF electrolytic at the motor connector. Use a gate resistor or RC snubber on the PWM input if long MCU traces cause ringing above 5 MHz.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the STMicroelectronics datasheet, giving engineers a single decision-ready resource for selecting and implementing the VNH7100BASTR in automotive and industrial brushed DC motor designs.
Bộ thay thế dễ dàng lắp đặt cho VNH7100BASTR — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.
Các biến thể trong loạt này
Các mẫu cùng loạt có thể lắp đặt dễ dàng tương thích với VNH7100BASTR (cùng hình factor và footprint) — khác nhau ở Continuous Output Current, Package, Technology, Function, Protection Features.
VNH7070BASTR
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
VNH7100ASTR
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →VNH7100BAS
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
VNH7100BASTR Tỷ lệ tối đa & tính chất điện
| Chức năng | Fully integrated H-bridge motor driver |
| Cấu trúc | Full H-bridge with dual high-side + dual low-side MOSFETs |
| Supply Voltage Range | 4 V to 28 V |
| Continuous Output Current | 12 A |
| On-Resistance per High-Side Switch (typ.) | 60 mΩ |
| PWM Switching Frequency | Up to 20 kHz |
| Technology | VIPower M0 (smart-power) |
| Khoảng nhiệt độ hoạt động | -40 °C to +150 °C (junction) |
| Hộp | PowerSSO-16 (SO-16N with exposed pad) |
| Kiểu lắp đặt | Surface Mount |
| Số lượng đầu ra | 1 (H-bridge) |
| Automotive Qualification | AEC-Q100 qualified |
| Protection Features | UVLO, overvoltage clamp, thermal shutdown, current limit |
| Diagnostic Output | Yes (fault feedback pin) |
| Trạng thái RoHS | Compliant |
Cấu hình chân VNH7100BASTR
| Chân 1 | VCC — Power supply (4 V to 28 V) |
| Chân 2 | OUT1 — H-bridge output 1 to motor |
| Chân 3 | OUT2 — H-bridge output 2 to motor |
| Chân 4 | GND — Ground |
| Chân 5 | DIAG — Diagnostic fault feedback output |
| Chân 6 | PWM — PWM input for speed control |
| Chân 7 | EN — Enable input (active high) |
| Chân 8 | IN1 — Logic input for direction control |
| Chân 9 | IN2 — Logic input for direction control |
| Chân 10 | NC — Not connected (per datasheet) |
| Chân 11 | NC — Not connected (per datasheet) |
| Chân 12 | NC — Not connected (per datasheet) |
| Chân 13 | GND — Ground |
| Chân 14 | GND — Ground |
| Chân 15 | GND — Ground |
| Chân 16 | GND — Ground |
Khu vực hoạt động an toàn
Ứng dụng tiêu biểu
VNH7100BASTR phù hợp cho 6 Áp dụngs: Automotive Power Window Lifter, Power Seat Adjuster Motor Drive, Side Mirror Fold Actuator, HVAC Blend/Flap Actuator, Door Lock Motor Drive, Industrial 24 V Brushed DC Drive.
Automotive Power Window Lifter
The VNH7100BASTR's 12 A continuous rating directly supports window-lift motor stall currents, and its 4 V lower supply bound survives 12 V cold-crank events. AEC-Q100 qualification allows the part to ship in OEM door-module PCBs without requalification. Place the H-bridge between the 12 V battery rail and the window motor, and use the diagnostic pin to feed back fault status to the body-control MCU.
Được đề xuất
Power Seat Adjuster Motor Drive
Seat-position motors require bidirectional current up to ~10 A and PWM speed control for soft-start comfort positioning. The VNH7100BASTR's 20 kHz PWM capability and 60 mΩ high-side RDS(on) keep dissipation under 1 W per switch during typical seat travel. The exposed PowerSSO-16 pad dissipates waste heat into the seat-module chassis ground plane, eliminating an external heatsink.
Được đề xuất
Side Mirror Fold Actuator
Mirror-fold motors draw 2-4 A peak during the 1-2 second fold cycle, well within the VNH7100BASTR's 12 A envelope. The integrated overvoltage clamp protects the H-bridge from 24 V jump-start transients on the body harness. The device's diagnostic output signals fault conditions back to the BCM, enabling OBD-compliant fault logging for premium mirror modules.
Được đề xuất
HVAC Blend/Flap Actuator
HVAC flap motors operate at low duty cycle with 1-3 A average current, but require VDC+ regulators for continuous position hold. The VNH7100BASTR's PWM control and current-limit features make it suitable for stepping the flap through precise angles while reporting stall conditions. AEC-Q100 qualification matches the under-dash thermal environment of HVAC control modules.
Được đề xuất
Door Lock Motor Drive
Door-latch actuators need a short 10-15 A inrush pulse followed by ~2 A holding current. The VNH7100BASTR handles the inrush on its 12 A continuous rating with the current-limit circuit clamping stall events. The integrated thermal shutdown protects against prolonged stall conditions, and the PowerSSO-16 exposed pad dissipates the inrush energy without an external heatsink.
Được đề xuất
Industrial 24 V Brushed DC Drive
On a 24 V industrial bus, the VNH7100BASTR's 28 V upper supply bound provides margin against rectified 24 V transformer ripple. The VIPower M0 protection suite rejects inductive kickback when the motor commutates, eliminating external flyback diodes and shrinking the BOM. Industrial enclosures with 50 °C ambient are tolerated thanks to the -40 °C to +150 °C junction range.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho VNH7100BASTR — so sánh, hướng dẫn thiết kế và thông tin tuân thủ.
Hướng dẫn chọn lựa
So sánh với các sản phẩm thay thế
| Tham số | Sản phẩm này | VNH7070BASTR | VNH7100ASTR | VNH7100BAS |
|---|---|---|---|---|
| Brand | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics |
| Package | PowerSSO-16 | PowerSSO-16 - same | PowerSSO-16 - same | PowerSSO-16 - same |
| Continuous Output Current | 12 A | 10 A | 12 A | 12 A |
| Supply Voltage Range | 4 V to 28 V | 4 V to 28 V | 4 V to 28 V | 4 V to 28 V |
| AEC-Q100 Qualified | Yes | Yes | Yes | Yes |
| PWM Frequency | Up to 20 kHz | Up to 20 kHz | Up to 20 kHz | Up to 20 kHz |
| Diagnostic Output | Yes | Yes | Yes | Yes |
Bảo phân biệt quan trọng
- 12 A continuous rating in PowerSSO-16 exposed-pad package (vsVNH7070BASTR)
- Latest 'B' silicon revision (vsVNH7100ASTR)
- AEC-Q100 automotive qualification (vsDRV8873HPWPR)
Ghi chú thiết kế
Estimated: at 12 V supply, 12 A continuous output with a stalled motor (100% duty), the VNH7100BASTR dissipates approximately 60 mΩ × 12 A × 2 switches ≈ 17 W. A PowerSSO-16 with a 4×4 thermal via array on a 1 sq in copper pour keeps theta_JA under 30 °C/W, holding Tj below 150 °C in 50 °C ambient. At lower duty cycles (e.g. seat travel <2 s), much smaller copper areas are adequate.
Place a 100 nF X7R ceramic bypass within 2 mm of the VCC pin to suppress the high-side driver switching transients. Add a 47 µF electrolytic bulk capacitor at the motor connector to absorb motor commutation energy. Stitch a 4×4 thermal via array (0.3 mm drill, 0.6 mm pad) under the exposed pad and tie the inner planes to a clean ground island for best power dissipation.
Do not float the EN pin - tie it to VCC through a 10 kΩ pull-up if unused, or to the MCU GPIO if controlled. Avoid routing the motor wires parallel to the PWM logic traces for more than 25 mm; keep at least 5 mm spacing or a ground guard trace to prevent dv/dt noise from coupling into the IN1/IN2 logic. Always observe the motor current rating versus the H-bridge 12 A continuous limit; peak inrush above 12 A will trigger the current-limit circuit and may stall the application.
Thông tin tuân thủ
AEC-Q100 qualified per ST product family. RoHS compliant per distributor listings. Halogen-free status not explicitly confirmed in verified data.
