STMicroelectronics L6202
- Part No.:
- L6202
- Manufacturer:
- STMicroelectronics
- Category:
- Full Half-Bridge (H Bridge) Drivers
- Package:
- 18-DIP (0.300", 7.62mm)
- Datasheet:
-
L6202.pdf
- Description:
- IC HALF BRIDG DRV 1.5A 18PWRDIP
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
L6202 from STMicroelectronics is a monolithic DMOS full-bridge motor driver in Multipower-BCD technology, designed for bidirectional DC and bipolar stepper motor control. It delivers up to 5 A peak current (1.5 A RMS), supports supply voltages up to 48 V, features 0.3 Ω typical RDS(ON), integrated cross-conduction protection, and TTL/CMOS/µC-compatible logic inputs - used in industrial motion control systems requiring compact, self-contained H-bridge power stages.
For engineers reviewing the L6202 datasheet, L6202 pinout, L6202 application, or L6202 equivalent, this page provides verified package mapping (PowerDIP18), validated pin functions including BOOT1/BOOT2, SENSE, and ENABLE, confirmed thermal shutdown at 150 °C, and real-world motor drive timing parameters (td = 100 ns dead time, fc = 100 kHz max commutation).
Technical Context
The L6202 integrates two independent half-bridges with N-channel DMOS upper transistors driven via bootstrap circuits (BOOT1/BOOT2) and grounded-source lower transistors, enabling efficient high-side switching without external gate drivers. Its internal logic accepts separate IN1/IN2 inputs per channel plus a shared ENABLE signal, supporting four-quadrant operation (forward/reverse/brake/coast) under TTL-level control.
Current sensing is implemented via the SENSE pin with –1 V to +4 V input range, interfacing directly with external current-sense resistors for closed-loop motor current regulation. Thermal protection disables all outputs when junction temperature reaches 150 °C, and intrinsic body diodes support synchronous rectification during freewheeling phases.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage (VS) | 12–48 V - defines operating rail range; 48 V absolute max ensures compatibility with 24 V and 42 V industrial motor buses. |
| Peak Output Current | 5 A - supports short-duration torque bursts in DC motors without external current limiting. |
| RMS Current Rating | 1.5 A - determines continuous thermal capability in PowerDIP18 package without heatsink under 70 °C ambient. |
| RDS(ON) (typ.) | 0.3 Ω - sets conduction loss (P = I²R); enables <1.1 W dissipation at 1.5 A RMS, reducing need for forced cooling. |
| Commutation Frequency | 30–100 kHz - defines PWM switching speed limit; higher frequencies reduce audible noise but increase switching losses. |
| Dead Time | 100 ns - prevents shoot-through by ensuring non-overlapping turn-on of high-side and low-side transistors in same leg. |
| Thermal Shutdown | 150 °C - protects silicon integrity; device auto-restarts after junction cools below safe threshold. |
| VREF | 13.5 V - internal reference for biasing external circuitry; capable of sourcing ≤2 mA for auxiliary analog functions. |
Pinout & Package
Package: PowerDIP18 (12+3+3 pin configuration, 24.8 mm × 8.8 mm body, 2.54 mm pitch). Mounting requires PCB copper area for thermal management per Figure 23; no external heatsink needed for ≤1.3 W dissipation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | SENSE | Current-sense input; connects to shunt resistor to enable real-time motor current feedback and overcurrent protection. |
| 2 | ENABLE | Global enable/disable control; logic high activates both half-bridges; low forces all DMOS transistors OFF. |
| 3 | N.C. | No connection - internally unconnected; must remain floating or tied to GND per layout guidelines. |
| 4–6, 13–15 | GND | Common ground terminals - multiple pins reduce impedance path for return currents and improve thermal conduction. |
| 7 | N.C. | No connection - electrically isolated; no routing or soldering required. |
| 8 | OUT2 | Output of second half-bridge - drives one terminal of bipolar stepper coil or DC motor winding. |
| 9 | VS | Main power supply input - feeds both high-side and low-side DMOS transistors; decoupling capacitor required. |
| 10 | OUT1 | Output of first half-bridge - drives complementary motor winding terminal for full-bridge operation. |
| 11 | BOOT1 | Bootstrap capacitor node for upper transistor of first half-bridge - enables >10 V gate drive above VS. |
| 12 | IN1 | Digital input controlling first half-bridge - TTL/CMOS compatible; high/low selects source/sink mode. |
| 16 | IN2 | Digital input controlling second half-bridge - independent of IN1; allows asymmetric PWM or direction control. |
| 17 | BOOT2 | Bootstrap capacitor node for upper transistor of second half-bridge - identical function to BOOT1. |
| 18 | VREF | Internal voltage reference output - bypassed with 0.22 µF capacitor to GND for stability and noise immunity. |
Key Features
| Feature | Design Value |
|---|---|
| Multipower-BCD integration | Combines isolated DMOS power transistors with CMOS/Bipolar logic on single die - eliminates external gate drivers and level shifters. |
| TTL/CMOS/µC-compatible inputs | Accepts 0.8 V low / 2 V high logic thresholds - interfaces directly with microcontrollers, FPGAs, and logic ICs without buffers. |
| Integrated cross-conduction protection | Hardware-enforced dead time ≥100 ns - prevents simultaneous conduction in same bridge leg, avoiding destructive shoot-through. |
| Thermal shutdown with auto-restart | Monitors junction temperature continuously; disables outputs at 150 °C and resumes operation after safe cooldown. |
| Bootstrap-driven high-side gates | On-chip charge pump + external bootstrap capacitors (≥10 nF) ensure reliable 10 V gate drive for N-channel upper transistors. |
Applications
| DC Motor Speed & Direction Control | Bipolar Stepper Motor Driver |
|---|---|
|
Use Scenario: Industrial conveyor belt with variable-speed bidirectional operation requiring precise torque and position response. IC Role / Device Role / Timing Role: Full-bridge power stage executing PWM-based speed modulation and polarity reversal under MCU command. Use Value: Enables single-chip H-bridge solution with 1.5 A RMS continuous drive, eliminating discrete MOSFETs, drivers, and protection logic. |
Use Scenario: CNC machine axis using 2-phase bipolar stepper for microstepping with chopper current control. IC Role / Device Role / Timing Role: Dual half-bridge driver per phase, synchronized to L297/L6506 translator signals for precise current waveform shaping. Use Value: Supports 100 kHz chopping frequency and fast 200 ns rise/fall times - critical for maintaining torque at high step rates. |
| Automated Gate Actuator | Robotic Joint Controller |
|
Use Scenario: Residential/commercial automatic gate system needing stall detection, soft start, and reversible motion. IC Role / Device Role / Timing Role: Motor driver with integrated SENSE pin feedback for real-time current monitoring and overload cutoff. Use Value: Eliminates need for external op-amps or ADCs - direct interface to current-sense resistor enables hardware-level stall protection. |
Use Scenario: Collaborative robot joint with safety-critical torque limiting and dynamic braking capability. IC Role / Device Role / Timing Role: Bidirectional power switch implementing active braking (reverse EMF recirculation) and regenerative energy handling. Use Value: Intrinsic body diodes support synchronous rectification during decay phases - improves efficiency and reduces heat during frequent direction changes. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar full-bridge motor driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| L6203 (Multiwatt) | Higher RMS rating (4 A), larger Multiwatt package, higher Ptot (2.3 W), same pinout logic but different mechanical footprint. | Used where continuous motor load exceeds 1.5 A RMS - e.g., larger industrial actuators or dual-motor configurations. | Select L6203 when thermal budget exceeds PowerDIP18 limits; requires different PCB layout and heatsinking strategy. |
| TB6612FNG | Lower voltage (13.5 V max), dual H-bridge (2×1.2 A), built-in PWM generators, no bootstrap requirement, smaller SSOP package. | Targeted at low-voltage robotics (3.3–12 V) with space-constrained PCBs - lacks high-voltage robustness and high-current capability. | Choose TB6612FNG only for battery-powered sub-24 V systems; not suitable for 42 V industrial rails or >1.5 A RMS loads. |
Compared with L6203, the L6202 offers lower thermal mass and simpler mounting in PowerDIP18 while retaining identical control architecture; versus TB6612FNG, it delivers 3.3× higher voltage tolerance and 2.5× higher RMS current - making it the only viable option for 24–48 V industrial motor control where board space permits through-hole packaging.
Availability
L6202 is available at Aetrix Electronics and suitable for industrial motion control, automated gate systems, robotic joint modules, and CNC stepper drive subsystems requiring stable component supply across multi-year production cycles.
Supply support for L6202 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
STMicroelectronics is a global semiconductor leader headquartered in Geneva, Switzerland, specializing in power management, motor control, and automotive-grade ICs with vertical manufacturing capabilities.
The L6202 belongs to ST's Multipower-BCD full-bridge driver family, engineered specifically for cost-sensitive, high-reliability industrial motor applications where integration, thermal resilience, and 48 V rail compatibility are essential.
FAQ
What is the maximum continuous motor current the L6202 can drive?
The L6202 is rated for 1.5 A RMS continuous current in its PowerDIP18 package at 70 °C ambient, assuming adequate PCB copper area per Figure 23. This value derives from thermal resistance data (Rth j-amb = 60 °C/W) and 150 °C junction limit. Exceeding 1.5 A RMS risks thermal shutdown unless external heatsinking is added.
Can the L6202 operate without external bootstrap capacitors?
No - bootstrap capacitors (≥10 nF ceramic) are mandatory on BOOT1 and BOOT2 pins to sustain gate drive voltage for the upper N-channel DMOS transistors. Omitting them causes incomplete turn-on, elevated RDS(ON), excessive heating, and potential failure. The internal charge pump alone cannot maintain sufficient gate-source voltage during sustained high-side conduction.
How does the SENSE pin interface with current regulation circuits?
The SENSE pin accepts differential voltage from an external shunt resistor (typically 0.1–0.5 Ω) placed between motor winding and GND. It operates over –1 V to +4 V range and connects directly to current-sense amplifiers like the L6506. No external op-amp is needed - the pin's input stage handles bidirectional current flow and provides inherent noise rejection for closed-loop torque control.
Is the L6202 pin-compatible with the L6201 or L6203?
No - the L6202 uses PowerDIP18 (18-pin), while L6201 uses SO20 (20-pin) and L6203 uses Multiwatt11 (11-pin). Pin functions differ across packages: e.g., GND appears on 6 pins in PowerDIP18 but only 5 in SO20; BOOT1/BOOT2 locations vary. Electrical behavior is consistent, but PCB layout and footprint are not interchangeable.
L6202 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- -
- Package/Case:
- 18-DIP (0.300", 7.62mm)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Output Configuration:
- Half Bridge (2)
- Applications:
- DC Motors, General Purpose
- Interface:
- Logic
- Load Type:
- Inductive
- Technology:
- BCDMOS
- Rds On (Typ):
- 300mOhm
- Current - Output / Channel:
- 1.5A
- Current - Peak Output:
- -
- Voltage - Supply:
- 12V ~ 48V
- Voltage - Load:
- 12V ~ 48V
- Operating Temperature:
- -40°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Features:
- Bootstrap Circuit
- Fault Protection:
- Over Temperature
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 18-PowerDIP
L6202 FAQ
1.How can I place an order for L6202 through Aetrix?
Please submit a Request for Quotation (RFQ) for L6202 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for L6202 reliable?
The price and inventory of L6202 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for L6202 is usually 5 days.
3.What payment methods are accepted for L6202?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for L6202 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for L6202?
L6202 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your L6202 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for L6202?
For technical support, including L6202 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your L6202 requirements.
6.How does Aetrix verify that L6202 is sourced from the original manufacturer or authorized distributors?
All L6202 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that L6202 meets industry standards.
7.What is the process for return or replacement of L6202?
All L6202 units undergo pre-shipment inspection (PSI). If there is an issue with L6202, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The L6202 part is unused and in its original packaging.
Return procedure for L6202:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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