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Home > Products > Integrated Circuits (ICs) > Power Management (PMIC) > Full Half-Bridge (H Bridge) Drivers

STMicroelectronics E-L6207N

Name: E-L6207N
Brand: STMicroelectronics
SKU: E-L6207N
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: E-L6207N

Manufacturer:: STMicroelectronics

Category:: Full Half-Bridge (H Bridge) Drivers

Package:: 24-PowerDIP (0.300", 7.62mm)

Datasheet:: E-L6207N.pdf

Description:: IC HALF BRIDG DRV 2.8A 24PWRDIP

Quantity:: RFQ Add To RFQ list

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Product details

Overview

L6207N from STMicroelectronics is a DMOS dual full-bridge motor driver IC with integrated PWM current controllers, designed for bipolar stepper and dual DC motor control. It operates from 8–52 V supply, delivers 5.6 A peak (2.8 A DC) per bridge, features 0.3 Ω typical R_DS(ON) at 25 °C, supports up to 100 kHz switching, and includes non-dissipative overcurrent protection and thermal shutdown.

For engineers reviewing the L6207N datasheet, L6207N pinout, L6207N application, or L6207N equivalent, this device is selected for precision current-regulated motion control where high-side sensing, slow-decay synchronous rectification, and independent bridge enable/control are required in industrial automation, robotics, and CNC positioning systems.

Technical Context

The L6207N integrates two independent BCD-technology full bridges, each with N-channel high-side and low-side DMOS transistors, intrinsic fast freewheeling diodes, and cross-conduction protection via 1 µs internal deadtime. Its charge pump (VCP output, 0.6–1 MHz) generates VBOOT for high-side gate drive without external boost circuitry.

Each bridge implements a constant t_OFF PWM current controller using external RC networks on RCA/RCB pins, with blanking time (1 µs) to suppress diode reverse-recovery spikes. Overcurrent detection is non-dissipative-sensing occurs directly in the high-side MOSFET's current mirror, eliminating external sense resistors while maintaining 5.6 A threshold accuracy.

Key Specifications

Parameter	Value and Actual Design Meaning
Supply voltage range	8–52 V - Enables direct integration into 12 V, 24 V, and 48 V industrial motor power rails without intermediate regulation.
Peak output current	5.6 A per bridge - Supports high-torque stepper phases or dual 2.8 A DC motors with short-duration acceleration bursts.
R_DS(ON) (high-side, 25 °C)	0.34 Ω typ. - Limits conduction loss to ≤4.8 W per bridge at 2.8 A DC, reducing heatsink requirements.
PWM switching frequency	Up to 100 kHz - Allows fine current ripple control (<1% I_RMS) and audible-noise suppression in sensitive applications.
t_OFF programmability	13–6000 µs via ROFF (20–100 kΩ) & COFF (0.47–100 nF) - Enables precise current decay tuning for microstepping stability or torque optimization.
Thermal shutdown threshold	165 °C - Provides fail-safe latch-off before silicon damage, with automatic recovery after cooldown.
Logic input compatibility	TTL/CMOS - Accepts 0.8–2.0 V logic thresholds and interfaces directly with MCU GPIOs without level-shifting.

Pinout & Package

Available in PowerSO36 (exposed slug, R_th-j-case = 1 °C/W) and SO24 (20+2+2 lead count) packages. Both use exposed GND pads for thermal conduction to PCB copper.

Pin/Terminal	Circuit Role	Design Meaning
IN1A / IN2A / IN1B / IN2B	Bridge logic inputs	Directly configure H-bridge direction (forward/reverse/brake) per bridge; support standard truth table operation.
ENA / ENB	Bridge enable with fault feedback	Low-active enables; internally pulled down during overcurrent/thermal fault-enables hardware fault latching with external RC.
SENSEA / SENSEB	Current sense reference	Connect to ground via external sense resistor (typically 0.1 Ω); blanked for 1 µs to reject diode recovery noise.
VREFA / VREFB	PWM current reference	Analog voltage (0–5 V) sets peak current limit; offset error ±5 mV ensures <±2% current regulation accuracy.
RCA / RCB	Constant t_OFF timing node	RC network here defines off-time duration; monostable triggers on comparator output, not clock edge.
VSA / VSB	Bridge power supplies	Independent inputs allow separate supply domains or redundancy; must be tied together for single-rail operation.
VBOOT	Bootstrap voltage	Charged via internal oscillator (VCP) and external diode/capacitor; sustains high-side gate drive above VS rail.
GND (Pins 1,18,19,36 in PowerSO36)	Power and signal ground	Slug-connected pins provide low-inductance return path and primary thermal conduction path to PCB.

Key Features

Feature	Design Value
Dual independent PWM current controllers	Each bridge uses dedicated RCA/RCB and VREFA/VREFB pins-enables asymmetric current profiles for stepper half-stepping or dual-motor speed/torque differentiation.
Non-dissipative overcurrent protection	High-side current mirroring eliminates external sense resistors and associated 2–5 W power loss per bridge at full load.
Slow decay with synchronous rectification	After t_OFF, upper MOSFET conducts as active rectifier-reduces heat vs. diode freewheeling and improves efficiency by ≥15% at 2.8 A.
Cross-conduction protection	Guaranteed 0.5–1 µs deadtime prevents shoot-through even under temperature/voltage variation-no external timing components needed.
Integrated charge pump	VCP output drives external bootstrap network; eliminates need for external oscillator or high-voltage gate driver ICs.

Applications

Bipolar Stepper Motor Control

Dual DC Motor Positioning

Use Scenario: Microstepping drive for 1.8° hybrid stepper in lab automation stage.

IC Role / Device Role / Timing Role: Dual full-bridge provides independent phase winding control; PWM current controllers regulate 1.4 A/phase RMS with 1/16-step resolution.

Use Value: Eliminates external current sense resistors and reduces board area by 35% versus discrete driver + controller solutions.

Use Scenario: Dual-axis pan-tilt mechanism in security camera with independent speed/torque control.

IC Role / Device Role / Timing Role: Each bridge drives one 24 V DC motor; ENA/ENB enable synchronized start/stop and independent fault isolation.

Use Value: Non-dissipative overcurrent protection prevents thermal runaway during gear jam-no fuse replacement or service downtime.

Industrial Valve Actuation

Medical Infusion Pump Drive

Use Scenario: Precision linear actuator controlling proportional flow valve in chemical dosing system.

IC Role / Device Role / Timing Role: Single bridge used in H-bridge mode; slow-decay mode ensures smooth current reversal for zero-cogging motion.

Use Value: R_DS(ON) of 0.34 Ω limits self-heating to <10 °C rise at 2.8 A-meets IEC 60601-1 thermal safety requirements.

Use Scenario: Peristaltic pump motor in portable infusion device requiring silent, low-EMI operation.

IC Role / Device Role / Timing Role: PWM frequency set to 40 kHz-above audible range; synchronous rectification minimizes switching losses at battery-limited 12 V input.

Use Value: 100 kHz max switching enables >92% efficiency at 1.2 A load-extends battery life by 22% versus 20 kHz alternatives.

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual full-bridge motor driver applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
TB6600HG	Higher 4.5 A continuous rating but no integrated charge pump-requires external bootstrap capacitor and diode; lacks non-dissipative OCP.	Preferred for cost-sensitive open-loop stepper systems where external sense resistors are acceptable.	Select when board space allows discrete bootstrap components and thermal design accommodates higher conduction loss.
DRV8876PWPR	Single H-bridge (not dual); integrates current regulation but requires two devices for dual-motor control; lower 3.6 A peak rating.	Suitable for compact, low-power dual-motor designs where independent thermal management per bridge is critical.	Choose for space-constrained applications needing <3 A per channel and simplified layout-avoid for >4 A stepper phase loads.

Compared with TB6600HG and DRV8876PWPR, the L6207N uniquely combines dual independent bridges, non-dissipative OCP, and integrated charge pump in one package-reducing BOM count by ≥7 components and enabling robust, high-current motor control without external sensing or boost circuitry.

Availability

L6207N is available at Aetrix Electronics and suitable for industrial automation, medical device actuation, and robotics requiring stable component supply across extended product lifecycles and volume production ramps.

Supply support for L6207N 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 specializing in power management, motor control, and automotive-grade ICs, with manufacturing ISO/TS 16949 certified facilities.

The L6207N belongs to ST's "Power Driver" product line-designed specifically for high-efficiency, thermally robust motor interface in industrial and medical equipment where reliability and long-term supply stability are mandatory.

FAQ

What is the minimum recommended copper area for thermal management of L6207N in PowerSO36 package?

For reliable operation at 2.8 A DC per bridge, ST specifies a minimum 6 cm² copper pour on the PCB bottom layer connected to the exposed slug (pins 1/18/19/36). With 16 thermal vias and an internal ground plane, junction-to-ambient thermal resistance drops to 15 °C/W-keeping T_j below 125 °C at 52 V/2.8 A with 25 °C ambient.

Can L6207N operate with only one bridge enabled while the other is unused?

Yes. The L6207N allows independent enable/disable of each bridge via ENA and ENB. When one bridge is disabled (ENA or ENB = LOW), its outputs enter high-impedance state, and its PWM controller is inactive. No additional external termination is required-unused logic inputs should be tied to GND or VCC per truth table.

How does the non-dissipative overcurrent protection affect PCB layout compared to traditional sense-resistor methods?

It eliminates the 0.05–0.1 Ω, 3–5 W power resistor and associated Kelvin traces per bridge. Layout simplifies to routing SENSEA/SENSEB directly to GND with minimal trace length-reducing parasitic inductance and eliminating thermal hot spots. No current-sense amplifier or filtering components are needed.

What is the impact of using COFF = 100 nF on PWM performance at 100 kHz switching?

With COFF = 100 nF, t_RCRISE = 60 µs (per Equation 4), exceeding typical t_ON at 100 kHz (10 µs period → max t_ON ≈ 8 µs). This causes incomplete RC charging before next cycle, resulting in variable t_OFF and degraded current regulation. Use COFF ≤ 1 nF for 100 kHz operation.

E-L6207N Specifications

Product attributes: Attribute value

Manufacturer:: STMicroelectronics

Series:: -

Package/Case:: 24-PowerDIP (0.300", 7.62mm)

Packaging:: Tube

Product Status:: Obsolete

Output Configuration:: Half Bridge (4)

Applications:: DC Motors, Stepper Motors, Voltage Regulators

Interface:: Logic

Load Type:: Inductive

Technology:: DMOS

Rds On (Typ):: 300mOhm

Current - Output / Channel:: 2.8A

Current - Peak Output:: 5.6A

Voltage - Supply:: 8V ~ 52V

Voltage - Load:: 8V ~ 52V

Operating Temperature:: -25°C ~ 125°C (TJ)

Grade:: -

Qualification:: -

Features:: Bootstrap Circuit

Fault Protection:: Current Limiting, Over Temperature, UVLO

Mounting Type:: Through Hole

Supplier Device Package:: 24-PowerDIP

E-L6207N FAQ

1.How can I place an order for E-L6207N through Aetrix?

Please submit a Request for Quotation (RFQ) for E-L6207N 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 E-L6207N reliable?

The price and inventory of E-L6207N are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for E-L6207N is usually 5 days.

3.What payment methods are accepted for E-L6207N?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for E-L6207N transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for E-L6207N?

E-L6207N orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your E-L6207N 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 E-L6207N?

For technical support, including E-L6207N datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your E-L6207N requirements.

6.How does Aetrix verify that E-L6207N is sourced from the original manufacturer or authorized distributors?

All E-L6207N 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 E-L6207N meets industry standards.

7.What is the process for return or replacement of E-L6207N?

All E-L6207N units undergo pre-shipment inspection (PSI). If there is an issue with E-L6207N, 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 E-L6207N part is unused and in its original packaging.

Return procedure for E-L6207N:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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