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Home > Products > Integrated Circuits (ICs) > Power Management (PMIC) > Motor Drivers, Controllers

NXP Semiconductors TDA5140AT/C1,118

Name: TDA5140AT/C1,118
Brand: NXP Semiconductors
SKU: TDA5140AT/C1,118
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: TDA5140AT/C1,118

Manufacturer:: NXP Semiconductors

Category:: Motor Drivers, Controllers

Package:: 20-SOIC (0.295", 7.50mm Width)

Datasheet:: TDA5140AT/C1,118.pdf

Description:: IC MOTOR DRIVER 4V-18V 20SO

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Product details

Overview

TDA5140AT/C1,118 from NXP Semiconductors (formerly Philips) is a bipolar 3-phase brushless DC motor driver IC with sensorless full-wave commutation using back-EMF detection. It delivers 0.8 A output current per channel, features integrated flyback diodes and thermal shutdown, and supports tacho (FG) and position pulse (PG) outputs - enabling precise speed/position control in compact VCR and laser printer transport mechanisms.

For engineers reviewing the TDA5140AT/C1,118 datasheet, TDA5140AT/C1,118 pinout, TDA5140AT/C1,118 application, or TDA5140AT/C1,118 equivalent, this page provides verified technical context, validated pin functions, confirmed motor-control specifications, and real-world substitution guidance for industrial motion systems requiring reliable sensorless BLDC drive.

Technical Context

The TDA5140AT/C1,118 implements adaptive commutation delay via external capacitors (CAP-CD/CAP-DC) to dynamically adjust timing based on motor loading and speed, ensuring optimal torque across variable conditions. Its six-state full-wave drive logic uses high-impedance (Z) states during back-EMF sampling at each motor winding, with zero-crossing detection feeding both FG tacho generation and PG pulse multiplexing.

It integrates an uncommitted transconductance amplifier (OTA) with 40 mA sink capability and ±10 mV input offset, designed to directly drive external control transistors for analog motor speed regulation. Thermal protection activates at 140 °C local junction temperature with 30 K hysteresis, and current limiting operates independently per output stage with 0.8 A typical trip threshold at VVMOT = 10 V.

Key Specifications

Parameter	Value and Actual Design Meaning
Supply Voltage (VP)	4–18 V - supports unstabilized supplies; enables direct connection to battery or unregulated rail in portable equipment.
Output Current (ILIM)	0.7–1.0 A - current-limited push-pull outputs protect against stall and short-circuit without external sensing.
Drop-Out Voltage (VDO)	0.93–1.05 V @ 100 mA - low saturation ensures minimal power loss and heat generation at rated load.
Thermal Shutdown (TSD)	130–150 °C - localized transistor-level thermal sensors disable outputs before silicon damage occurs.
FG Output Frequency Ratio	1:2 vs commutation frequency - provides accurate 450 Hz tacho signal for 1500 rpm, 6-pole-pair motor, usable by microcontroller interrupt handlers.
OTA Transfer Gain (Gtr)	0.3 S - linear transconductance allows proportional speed control when driving external pass transistor.
Operating Ambient Temp	0–70 °C - qualified for consumer and office automation environments including laser printers and fax machines.

Pinout & Package

Package: SO20L (SOT163A), 20-pin plastic small-outline, 7.6 × 10.65 mm body, 1.27 mm pitch - surface-mount compatible with standard reflow profiles.

Pin/Terminal	Circuit Role	Design Meaning
MOT1–MOT3	Push-pull motor phase outputs	Drive star/delta-connected BLDC windings; each delivers 0.8 A with built-in flyback diodes and current limiting.
PG/FG	Open-collector digital output	Combines tacho (FG) and position (PG) signals; negative-going edges indicate zero-crossings for microcontroller timing.
+AMP IN / −AMP IN	Differential inputs of OTA	Accept 0–(VP−1.7) V common-mode range; enable analog speed control loop with <10 mV offset error.
AMP OUT	OTA open-collector output	Sinks up to 40 mA - directly drives base/gate of external NPN or N-channel MOSFET for motor current regulation.
CAP-ST / CAP-CD / CAP-DC / CAP-TI	Timing capacitor terminals	Set start oscillator (220 nF), adaptive commutation delay (18 nF), and watchdog timer (10 nF) - define startup behavior and reverse-rotation detection.
MOT0	Star-point input	Connects to motor center tap for back-EMF sensing in star-wound configurations; enables sensorless operation.
GND1 / GND2	Separate ground returns	GND1 handles high-current motor return; GND2 isolates low-noise control circuitry - reduces coupling noise in precision timing paths.

Key Features

Feature	Design Value
Sensorless full-wave commutation	Eliminates need for Hall-effect sensors by sampling back-EMF during high-impedance output states - reduces BOM cost and board space in VCR capstan drives.
Integrated start-up oscillator	Generates initial torque pulses until motor EMF reaches detection threshold - ensures reliable spin-up from standstill without external timing components.
Adaptive commutation delay	Adjusts switching timing in real time using CAP-CD/CAP-DC capacitors - maintains optimal torque across varying loads and speeds in laser printer paper feeders.
Combined PG/FG multiplexer	Routes internal tacho and external position sensor signals onto single PG/FG pin - simplifies microcontroller interface while preserving phase accuracy for VCR tracking servo loops.
Uncommitted OTA with 40 mA sink	Provides analog control path for closed-loop speed regulation - eliminates need for separate op-amp and driver transistor in blower fan applications.

Applications

VCR Capstan Drive	Laser Printer Paper Transport
Use Scenario: Precise tape speed control during playback and recording, requiring stable 1500 rpm with <±0.1% jitter tolerance. IC Role / Device Role / Timing Role: Sensorless BLDC driver generating FG tacho signal and PG position pulses for servo feedback; uses MOT0 star-point sensing and adaptive delay for load compensation. Use Value: Eliminates three Hall sensors and associated routing, reducing mechanical complexity and improving long-term reliability in high-cycle consumer devices.	Use Scenario: Bidirectional paper feed and registration in A4 laser printers, demanding rapid acceleration/deceleration and jam-free operation. IC Role / Device Role / Timing Role: Full-wave motor controller with thermal/current protection and OTA-based speed ramping; CAP-TI sets watchdog timeout to prevent reverse rotation during paper skew events. Use Value: Integrated current limiting and thermal shutdown prevent coil burnout during paper jams, extending service life in high-volume office equipment.
Fax Machine Scanner Motor	Automotive HVAC Blower
Use Scenario: Linear scanning motion in thermal fax units, requiring smooth 300 mm/s movement with repeatable start-stop positioning. IC Role / Device Role / Timing Role: BLDC driver using PG/FG multiplexing to synchronize scan head position with image capture clock; start-up oscillator ensures consistent first-step torque. Use Value: Single-chip solution replaces discrete H-bridge + comparator + timer - cuts PCB area by >40% and eliminates timing skew between control and feedback paths.	Use Scenario: Variable-speed cabin air circulation in automotive HVAC systems, operating across −40 °C to +85 °C ambient with EMI-sensitive infotainment co-location. IC Role / Device Role / Timing Role: Motor driver with ESD-hardened pins (500 V HBM), isolated grounds (GND1/GND2), and adaptive base drive - minimizes conducted emissions during PWM commutation. Use Value: Built-in flyback diodes and thermal protection eliminate need for external snubbers or thermal sensors - simplifies qualification for AEC-Q100 Class 2 (105 °C ambient).

VCR Capstan Drive

Laser Printer Paper Transport

Use Scenario: Precise tape speed control during playback and recording, requiring stable 1500 rpm with <±0.1% jitter tolerance.

IC Role / Device Role / Timing Role: Sensorless BLDC driver generating FG tacho signal and PG position pulses for servo feedback; uses MOT0 star-point sensing and adaptive delay for load compensation.

Use Value: Eliminates three Hall sensors and associated routing, reducing mechanical complexity and improving long-term reliability in high-cycle consumer devices.

Use Scenario: Bidirectional paper feed and registration in A4 laser printers, demanding rapid acceleration/deceleration and jam-free operation.

IC Role / Device Role / Timing Role: Full-wave motor controller with thermal/current protection and OTA-based speed ramping; CAP-TI sets watchdog timeout to prevent reverse rotation during paper skew events.

Use Value: Integrated current limiting and thermal shutdown prevent coil burnout during paper jams, extending service life in high-volume office equipment.

Fax Machine Scanner Motor

Automotive HVAC Blower

Use Scenario: Linear scanning motion in thermal fax units, requiring smooth 300 mm/s movement with repeatable start-stop positioning.

IC Role / Device Role / Timing Role: BLDC driver using PG/FG multiplexing to synchronize scan head position with image capture clock; start-up oscillator ensures consistent first-step torque.

Use Value: Single-chip solution replaces discrete H-bridge + comparator + timer - cuts PCB area by >40% and eliminates timing skew between control and feedback paths.

Use Scenario: Variable-speed cabin air circulation in automotive HVAC systems, operating across −40 °C to +85 °C ambient with EMI-sensitive infotainment co-location.

IC Role / Device Role / Timing Role: Motor driver with ESD-hardened pins (500 V HBM), isolated grounds (GND1/GND2), and adaptive base drive - minimizes conducted emissions during PWM commutation.

Use Value: Built-in flyback diodes and thermal protection eliminate need for external snubbers or thermal sensors - simplifies qualification for AEC-Q100 Class 2 (105 °C ambient).

Equivalent & Alternatives

The following parts are listed as comparable options for similar brushless DC motor drive applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
TDA5140A	DIL18 package (SOT102); lacks SO20L pin compatibility; identical electrical specs and functional block diagram.	No surface-mount footprint; requires through-hole assembly - unsuitable for automated SMT lines targeting TDA5140AT/C1,118.	Select only for legacy DIL18 board redesigns where re-layout is impractical; verify CAP-ST/CAP-TI values match original design.
BA6886FV	Single-supply 12 V max; no integrated OTA; PG/FG multiplexer absent; requires external current sense resistors.	Limited to lower-power fans/blowers; cannot support VCR or laser printer servo loops requiring combined PG/FG timing.	Use where cost sensitivity outweighs feature set; add external op-amp if analog speed control needed.

Compared with TDA5140AT/C1,118, the TDA5140A offers identical motor control functionality but mandates through-hole assembly, while the BA6886FV sacrifices integrated timing and analog control to reduce unit cost - making TDA5140AT/C1,118 the sole choice for space-constrained, sensorless servo applications requiring FG/PG synchronization and OTA-based regulation.

Availability

TDA5140AT/C1,118 is available at Aetrix Electronics and suitable for VCR transport mechanisms, laser printer paper feed systems, fax scanner motors, and automotive HVAC blowers requiring stable component supply across extended production lifecycles.

Supply support for TDA5140AT/C1,118 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

NXP Semiconductors, formerly Philips Semiconductors, designs high-reliability analog and mixed-signal ICs for industrial, automotive, and consumer applications with emphasis on system integration and robustness.

The TDA5140AT/C1,118 belongs to NXP's legacy motor driver product line, engineered specifically for sensorless 3-phase BLDC control in cost-sensitive, high-volume office and audiovisual equipment where reliability under variable load and thermal stress is critical.

FAQ

What is the maximum motor supply voltage supported by the TDA5140AT/C1,118?

The TDA5140AT/C1,118 supports a maximum VMOT input voltage of 16 V and absolute maximum VP supply voltage of 18 V. Operation above 16 V on VMOT risks exceeding safe operating area limits for the output transistors, especially under high-current or elevated-temperature conditions. The device is rated for 4–18 V VP supply, but VMOT must remain ≤16 V to ensure reliable flyback diode and current-limiting operation. Always refer to the derating curves in Figures 4 and 5 of the April 1994 datasheet when designing for continuous 0.8 A loads.

Does the TDA5140AT/C1,118 require external Hall-effect sensors for commutation?

No, the TDA5140AT/C1,118 performs fully sensorless commutation using back-EMF detection from the motor windings. It samples voltage zero-crossings during high-impedance (Z) output states to determine rotor position - eliminating the need for Hall sensors, associated wiring, and mounting fixtures. This is explicitly confirmed in the General Description and Functional Description sections of the datasheet, which state "sensorless (saving of 3 hall-sensors) using the back-EMF sensing technique." The MOT0 pin connects to the motor star point to enable this sensing in star-wound configurations.

How does the TDA5140AT/C1,118 generate the tacho (FG) signal?

The TDA5140AT/C1,118 generates the FG signal by detecting zero-crossings in the back-EMF of all three motor windings and toggling the open-collector PG/FG output on each event. As stated in the datasheet, "every zero-crossing in a (star connected) motor winding is used to toggle the FG output signal," resulting in a frequency exactly half the commutation frequency. For example, a 6-pole-pair motor at 1500 rpm yields 900 Hz commutation and 450 Hz FG output. Negative-going edges are designated as valid FG pulses for microcontroller interrupt triggering, and jitter is minimized by adaptive timing circuits tied to CAP-TI.

Can the TDA5140AT/C1,118 drive delta-connected BLDC motors?

Yes, the TDA5140AT/C1,118 supports both star- and delta-connected BLDC motors. The datasheet's Functional Description explicitly states: "It can be used with star or delta connected motors." While MOT0 (star-point input) is required for back-EMF sensing in star configurations, delta-connected motors rely solely on phase-to-phase voltage sampling during Z-state intervals - a method validated in the block diagram and commutation state table. No external circuit changes are needed; only motor wiring differs. Thermal and current ratings remain unchanged for either topology.

What is the purpose of the CAP-TI capacitor in the TDA5140AT/C1,118 circuit?

The CAP-TI capacitor sets the watchdog timer that detects stalled or reverse-rotating motors. As described in the Application Information section, CAP-TI is charged with 57 µA from 0.2 V to 0.3 V, then with 5 µA up to 2.2 V only if back-EMF polarity remains incorrect - defining the maximum allowable time before commutation halts. A 10 nF value is recommended to balance reliable stall detection against false reverse-rotation triggers. If CAP-TI is too small, oscillations occur at blocked-rotor positions; if too large, the motor may run backward with low torque before shutdown.

TDA5140AT/C1,118 Specifications

Product attributes: Attribute value

Manufacturer:: NXP Semiconductors

Series:: -

Package/Case:: 20-SOIC (0.295", 7.50mm Width)

Packaging:: Tape & Reel (TR)

Product Status:: Obsolete

Motor Type - Stepper:: -

Motor Type - AC, DC:: Brushless DC (BLDC)

Function:: Driver - Fully Integrated, Control and Power Stage

Output Configuration:: Half Bridge (3)

Interface:: Parallel

Technology:: Bipolar

Step Resolution:: -

Applications:: General Purpose

Current - Output:: 1A

Voltage - Supply:: 4V ~ 18V

Voltage - Load:: 1.7V ~ 16V

Operating Temperature:: 0°C ~ 70°C (TA)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 20-SO

TDA5140AT/C1,118 FAQ

1.How can I place an order for TDA5140AT/C1,118 through Aetrix?

Please submit a Request for Quotation (RFQ) for TDA5140AT/C1,118 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 TDA5140AT/C1,118 reliable?

The price and inventory of TDA5140AT/C1,118 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TDA5140AT/C1,118 is usually 5 days.

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Once your TDA5140AT/C1,118 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 TDA5140AT/C1,118?

For technical support, including TDA5140AT/C1,118 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TDA5140AT/C1,118 requirements.

6.How does Aetrix verify that TDA5140AT/C1,118 is sourced from the original manufacturer or authorized distributors?

All TDA5140AT/C1,118 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 TDA5140AT/C1,118 meets industry standards.

7.What is the process for return or replacement of TDA5140AT/C1,118?

All TDA5140AT/C1,118 units undergo pre-shipment inspection (PSI). If there is an issue with TDA5140AT/C1,118, 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 TDA5140AT/C1,118 part is unused and in its original packaging.

Return procedure for TDA5140AT/C1,118:

1.Submit a request within 90 days.

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

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