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

Texas Instruments TPIC2101DG4

Name: TPIC2101DG4
Brand: Texas Instruments
SKU: TPIC2101DG4
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: TPIC2101DG4

Manufacturer:: Texas Instruments

Category:: Motor Drivers, Controllers

Package:: 14-SOIC (0.154", 3.90mm Width)

Datasheet:: TPIC2101DG4.pdf

Description:: IC MOTOR DRIVER 8V-16V 14SOIC

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Product details

Overview

TPIC2101DG4 from Texas Instruments is a monolithic DC brush motor controller IC that generates a fixed-frequency (20 kHz), variable-duty-cycle PWM gate drive signal to control low-side NMOS FETs driving permanent-magnet DC motors. It supports dual-input modes (auto-mode 0–100% PWM, manual-mode 0–2.2 V differential), delivers up to 50 mA gate drive current, features built-in soft start, and operates across –40°C to 105°C for automotive HVAC blower and power seat applications.

For engineers reviewing the TPIC2101DG4 datasheet, TPIC2101DG4 pinout, TPIC2101DG4 application, or TPIC2101DG4 equivalent, key selection considerations include its 20 kHz oscillator frequency, 0–16 V Vbat operating range, sleep-state current <200 µA, over/under-voltage protection thresholds (OVSD ≈18.5 V, UVLO ≈7.5 V), and external current-limit sensing via ILS/ILR terminals.

Technical Context

The TPIC2101DG4 implements an integrated PWM waveform generator with internal 20 kHz oscillator (ROSC/COSC controlled), analog integrator (SPEED/INT), and dual-mode input decoder (AUTO/MAN) that auto-detects open-collector PWM or resistive potentiometer inputs. Its gate drive logic includes fault latching, 8192-cycle current-fault detection windows, and 65536-cycle disable periods before restart attempts.

It uses a regulated 5.5 V internal supply (V5P5/AREF) derived from Vbat, with AREF serving as reference for current-limit comparator (ILS vs ILR) and CCS current sink (I_CCS = AREF/(2×R_CCS)). The device transitions between sleep (GD low, I_Q < 200 µA), run, and fault states based on input activity and overvoltage/current events.

Key Specifications

Parameter	Value and Actual Design Meaning
Vbat Range	8 V to 16 V nominal; supports load dump up to 40 V transient - enables direct battery connection in 12 V automotive systems.
Oscillator Frequency	20 kHz typical (f = 2/(ROSC × COSC)); sets PWM switching rate and determines current-fault timing resolution.
Gate Drive Output	0–Vbat swing, ±50 mA drive capability - directly interfaces low-side NMOS FETs without external buffer stages.
Sleep Current	<200 µA at Vbat = 13 V - minimizes standby power in always-on vehicle modules.
Overvoltage Threshold	17–20 V (typ 18.5 V); 0.5–0.99 V hysteresis - prevents false trips during battery transients.
Current Limit Accuracy	±10 mV offset at ILS/ILR comparator - ensures precise motor overcurrent cutoff independent of temperature.
Operating Temperature	–40°C to +105°C ambient - qualified for under-hood and cabin-mounted automotive motor control.

Pinout & Package

TPIC2101DG4 is housed in a 14-pin SOIC (D) package with standard 1.27 mm pitch, 8.65 mm × 3.91 mm body size, and thermal resistance R_θJA = 131°C/W.

Pin/Terminal	Circuit Role	Design Meaning
V5P5	Regulated 5.5 V output	Stable supply for internal circuitry; requires 4.7 µF tantalum capacitor to GND for stability.
MAN	Manual mode input	Active-high (>5.5 V) terminal; forms differential pair with AUTO for 0–2.2 V speed command in manual mode.
AUTO	Auto mode input	Open-collector PWM input (0–100% duty cycle); internal 1 mA pull-up active only in auto mode.
SPEED	Integrator output	RC-filtered PWM integrator output; requires ≥20 kΩ resistor to INT for soft-start time constant.
ROSC / COSC	Oscillator timing nodes	ROSC sources constant current into COSC; together set 20 kHz oscillator frequency (f = 2/(ROSC × COSC)).
INT	Integrator input	Low-pass filter input; pulled low by internal <500 Ω during overvoltage or current fault to ramp down GD duty cycle.
ILR / ILS	Current limit reference/sense	ILR sets trip threshold via resistor divider off AREF; ILS monitors external FET drain voltage for overcurrent detection.
GD	Gate drive output	PWM output driving low-side NMOS gate; 0–Vbat swing, ±50 mA capable, with defined rise/fall times (1 µs / 0.8 µs).
Vbat	Main power input	Accepts 8–16 V battery supply; includes over/under-voltage protection and internal 5.5 V regulator.
GND	Ground reference	Common return for all analog and power circuits; no terminal may be taken below GND.
AREF	5.5 V reference output	Switched copy of V5P5 during run state; supplies 2 mA max and serves as precision reference for ILR and CCS.
CCS	Constant current sink	Sinks I_CCS = AREF/(2×R_CCS); sets scaling for MAN/AUTO input currents in manual mode (20×I_CCS).

Key Features

Feature	Design Value
Dual-input mode auto-detection	Eliminates external mode-select hardware: IC internally distinguishes open-collector PWM (auto) from resistive potentiometer (manual) via MAN/AUTO voltage levels.
Battery-voltage-compensated PWM	Maintains constant effective motor voltage (PWM × Vbat) across 8–16 V battery range - avoids speed drift during cranking or alternator fluctuations.
Integrated current-fault protection	Eight consecutive 8192-cycle detection windows required before 65536-cycle GD disable - prevents nuisance shutdowns while ensuring robust overcurrent response.
Soft-start via SPEED/INT integrator	Configurable RC time constant (e.g., 20 kΩ + 4.7 µF = ~1 s) limits inrush current and reduces mechanical stress on motor and gears.
Low-quiescent sleep state	Draws <200 µA when AUTO/MAN inactive - meets automotive module "always-on" standby current requirements.

Applications

Automotive HVAC Blower Control	Power Seat Motor Driver
Use Scenario: Variable-speed fan control in vehicle heating/ventilation/air conditioning systems, responding to cabin temperature demand. IC Role / Device Role / Timing Role: TPIC2101DG4 acts as the primary PWM controller, accepting HVAC ECU's 100 Hz PWM speed command and driving low-side MOSFETs powering the blower motor. Use Value: Battery-voltage compensation ensures consistent airflow across engine-off (12.6 V), cranking (8–9 V), and charging (13.8–14.8 V) conditions without software recalibration.	Use Scenario: Position-adjustable front seats using bidirectional DC motors for fore/aft, recline, and height functions. IC Role / Device Role / Timing Role: TPIC2101DG4 controls one direction of motor motion per channel (paired with reverse-polarity driver), interpreting LIN or discrete switch inputs as speed commands. Use Value: Built-in overcurrent protection detects jammed mechanisms or cable shorts, disabling GD output before wiring harness damage occurs.
Industrial Linear Actuator	Medical Infusion Pump Drive
Use Scenario: Precision linear motion in factory automation equipment, such as valve positioning or conveyor indexing. IC Role / Device Role / Timing Role: TPIC2101DG4 provides closed-loop speed regulation using external encoder feedback processed by host MCU, with GD driving N-channel MOSFET half-bridge. Use Value: 20 kHz PWM frequency eliminates audible motor whine while enabling fine-grained speed resolution (0.1% duty step) via 10-bit DAC-equivalent input mapping.	Use Scenario: Low-noise, low-power motor control in portable infusion pumps delivering precise fluid dosing in clinical environments. IC Role / Device Role / Timing Role: TPIC2101DG4 serves as the motor interface IC, receiving speed commands from microcontroller and driving the pump's brushed DC motor via external FET. Use Value: Sleep-state current <200 µA extends battery life in battery-operated devices; under-voltage lockout prevents erratic operation below 7.5 V battery threshold.

Automotive HVAC Blower Control

Power Seat Motor Driver

Use Scenario: Variable-speed fan control in vehicle heating/ventilation/air conditioning systems, responding to cabin temperature demand.

IC Role / Device Role / Timing Role: TPIC2101DG4 acts as the primary PWM controller, accepting HVAC ECU's 100 Hz PWM speed command and driving low-side MOSFETs powering the blower motor.

Use Value: Battery-voltage compensation ensures consistent airflow across engine-off (12.6 V), cranking (8–9 V), and charging (13.8–14.8 V) conditions without software recalibration.

Use Scenario: Position-adjustable front seats using bidirectional DC motors for fore/aft, recline, and height functions.

IC Role / Device Role / Timing Role: TPIC2101DG4 controls one direction of motor motion per channel (paired with reverse-polarity driver), interpreting LIN or discrete switch inputs as speed commands.

Use Value: Built-in overcurrent protection detects jammed mechanisms or cable shorts, disabling GD output before wiring harness damage occurs.

Industrial Linear Actuator

Medical Infusion Pump Drive

Use Scenario: Precision linear motion in factory automation equipment, such as valve positioning or conveyor indexing.

IC Role / Device Role / Timing Role: TPIC2101DG4 provides closed-loop speed regulation using external encoder feedback processed by host MCU, with GD driving N-channel MOSFET half-bridge.

Use Value: 20 kHz PWM frequency eliminates audible motor whine while enabling fine-grained speed resolution (0.1% duty step) via 10-bit DAC-equivalent input mapping.

Use Scenario: Low-noise, low-power motor control in portable infusion pumps delivering precise fluid dosing in clinical environments.

IC Role / Device Role / Timing Role: TPIC2101DG4 serves as the motor interface IC, receiving speed commands from microcontroller and driving the pump's brushed DC motor via external FET.

Use Value: Sleep-state current <200 µA extends battery life in battery-operated devices; under-voltage lockout prevents erratic operation below 7.5 V battery threshold.

Equivalent & Alternatives

The following parts are listed as comparable options for similar DC brush motor controller applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
TLE5206-2G	Integrated high-side/low-side driver (6 A peak), no external FET required; lacks dual-input auto-detection and battery-compensated PWM.	Designed for direct-drive solenoids/valves; less suitable for precision speed-regulated motor control where Vbat compensation is critical.	Select TLE5206-2G only when higher integration (no external FET) and higher current drive outweigh need for Vbat-compensated speed stability.
DRV8876N	H-bridge driver with integrated current sense and SPI interface; supports bidirectional control but requires external MCU for PWM generation and compensation algorithms.	Targeted at smart motor modules needing diagnostics and communication; adds complexity versus TPIC2101DG4's analog simplicity.	Choose DRV8876N when bidirectional motion, real-time current monitoring, or firmware-updatable behavior are mandatory.

Compared with TLE5206-2G and DRV8876N, the TPIC2101DG4 offers unique analog-based battery-voltage compensation and dual-input flexibility without MCU dependency - making it optimal for cost-sensitive, single-direction, analog-commanded motor systems requiring stable speed across wide Vbat ranges.

Availability

TPIC2101DG4 is available at Aetrix Electronics and suitable for automotive HVAC blower control, power seat actuation, industrial linear actuators, and medical infusion pump drives requiring stable component supply and long-lifecycle support.

Supply support for TPIC2101DG4 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

Texas Instruments is a global semiconductor leader specializing in analog, embedded processing, and power management technologies, with deep expertise in automotive-grade IC design and qualification.

The TPIC2101DG4 belongs to TI's legacy motor control product line, engineered specifically for cost-effective, reliable, analog-based DC brush motor speed regulation in harsh automotive and industrial environments.

FAQ

What is the recommended external component configuration for TPIC2101DG4 in automatic mode?

The TPIC2101DG4 requires specific external components in automatic mode: a 499 Ω resistor on both MAN and AUTO pins, 0.1 µF capacitor on MAN, 0.47 µF capacitor on AUTO, 20 kΩ minimum resistor between SPEED and INT, 4.7 µF capacitor on INT, 45.3 kΩ resistor on ROSC, 2200 pF capacitor on COSC, and 27.4 kΩ resistor on CCS. These values establish the 20 kHz oscillator frequency, proper integrator time constant, and correct current scaling for reliable auto-mode operation. Deviations may cause inaccurate speed response or instability.

How does TPIC2101DG4 maintain constant effective motor voltage across varying battery voltages?

The TPIC2101DG4 maintains constant effective motor voltage (defined as GD PWM duty cycle × Vbat) by dynamically adjusting its output PWM duty cycle using internal analog circuitry. In automatic mode, it applies the equation PWM_out = (2.88 + 13.12 × (1 − Input Duty Cycle)) × (Vbat / 100%), and in manual mode, PWM_out = (2.88 + 6.56 × (V_MAN − V_AUTO)) × (Vbat / 100%). This compensation ensures consistent motor speed regardless of Vbat fluctuations from 8 V to 16 V, eliminating need for host MCU intervention.

What happens when TPIC2101DG4 enters current fault state, and how is it cleared?

When TPIC2101DG4 detects eight consecutive 8192-cycle windows with ILS > ILR, it disables GD output for 65536 clock cycles (≈3.3 s at 20 kHz), pulls INT low through <500 Ω, and attempts automatic restart. If current fault persists after restart, GD and INT remain latched low until the device is cycled through sleep state (e.g., open-circuit MAN/AUTO or zero-speed PWM) back to run state. This ensures fail-safe motor shutdown without MCU involvement.

Can TPIC2101DG4 drive high-side NMOS FETs, or is it limited to low-side configurations?

The TPIC2101DG4 is designed exclusively for low-side NMOS FET drive: its GD output swings from 0 V to Vbat referenced to GND, with no bootstrap or charge-pump circuitry for high-side gate biasing. Attempting to use it with high-side NMOS would result in insufficient gate-source voltage (V_GS) during conduction. For high-side drive, a dedicated high-side driver or P-channel MOSFET with appropriate level-shifting must be used alongside TPIC2101DG4.

What is the function of the CCS pin on TPIC2101DG4, and how is its value determined?

The CCS pin on TPIC2101DG4 is a constant current sink whose value is set by external resistor R_CCS using the formula I_CCS = AREF / (2 × R_CCS). With AREF ≈5.5 V, a 27.4 kΩ resistor yields I_CCS ≈100 µA. This current scales the input currents at MAN and AUTO terminals (20×I_CCS in manual mode, 13×I_CCS pullup in auto mode), enabling precise differential voltage measurement and consistent speed command interpretation across temperature and supply variations.

TPIC2101DG4 Specifications

Product attributes: Attribute value

Manufacturer:: Texas Instruments

Series:: -

Package/Case:: 14-SOIC (0.154", 3.90mm Width)

Packaging:: Tube

Product Status:: Obsolete

Motor Type - Stepper:: -

Motor Type - AC, DC:: Brushed DC

Function:: Controller - Commutation, Direction Management

Output Configuration:: Pre-Driver - Low Side

Interface:: Parallel

Technology:: -

Step Resolution:: -

Applications:: General Purpose

Current - Output:: -

Voltage - Supply:: 8V ~ 16V

Voltage - Load:: -

Operating Temperature:: -40°C ~ 105°C (TA)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 14-SOIC

TPIC2101DG4 FAQ

1.How can I place an order for TPIC2101DG4 through Aetrix?

Please submit a Request for Quotation (RFQ) for TPIC2101DG4 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 TPIC2101DG4 reliable?

The price and inventory of TPIC2101DG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPIC2101DG4 is usually 5 days.

3.What payment methods are accepted for TPIC2101DG4?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPIC2101DG4 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for TPIC2101DG4?

TPIC2101DG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your TPIC2101DG4 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 TPIC2101DG4?

For technical support, including TPIC2101DG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPIC2101DG4 requirements.

6.How does Aetrix verify that TPIC2101DG4 is sourced from the original manufacturer or authorized distributors?

All TPIC2101DG4 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 TPIC2101DG4 meets industry standards.

7.What is the process for return or replacement of TPIC2101DG4?

All TPIC2101DG4 units undergo pre-shipment inspection (PSI). If there is an issue with TPIC2101DG4, 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 TPIC2101DG4 part is unused and in its original packaging.

Return procedure for TPIC2101DG4:

1.Submit a request within 90 days.

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

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