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

STMicroelectronics STSPIN948TR

Name: STSPIN948TR
Brand: STMicroelectronics
SKU: STSPIN948TR
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: STSPIN948TR

Manufacturer:: STMicroelectronics

Category:: Motor Drivers, Controllers

Package:: 48-VFQFN Exposed Pad

Datasheet:: STSPIN948TR.pdf

Description:: SCALABLE 4.5 A DUAL FULL-BRIDGE

Quantity:: RFQ Add To RFQ list

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Inventory:1,704

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Product details

Overview

STSPIN948TR from STMicroelectronics is a 4.5 A dual full-bridge motor driver IC for brushed DC and bipolar stepper motors, operating up to 58 V supply, with R_DS(ON) HS + LS = 0.36 Ω typ., adjustable slew rate via external resistor, and integrated current-sense amplifiers (ACL = 10 V/V). It enables high-frequency PWM control in stage lighting and robotics motion systems.

For engineers reviewing the STSPIN948TR datasheet, STSPIN948TR pinout, STSPIN948TR application, or STSPIN948TR equivalent, key selection criteria include dual independent full-bridge operation mode, fixed OFF-time or PWM trimming current limiting, thermal shutdown at 150 °C, and dual open-drain fault outputs with UVLO protection on VS and VDD.

Technical Context

The STSPIN948TR integrates two fully independent full-bridge power stages, each with dedicated current sensing (via SENSEA/SENSEB), reference inputs (REFA/REFB), and OFF-time control (TOFFA/TOFFB). Its charge pump (VSPUMP/CP1/CP2/VBOOT) enables high-side NMOS drive up to 58 V without external bootstrap diodes.

Five driving modes-including dual independent full-bridge, parallel half-bridge, and mixed-decay full-bridge-are selected via MODE1–MODE3 logic inputs. Current limiting uses either fixed t_OFF (1–500 µs, set by ROFF/COFF) or PWM trimming, with decay behavior determined by PHx and OFFSETx states.

Key Specifications

Parameter	Value and Actual Design Meaning
Max Output Current	4.5 A RMS per bridge - supports continuous torque delivery in 24–48 V industrial actuators
Supply Voltage Range (VS)	5.2 V to 58 V - compatible with wide-range DC bus supplies including 24 V, 48 V, and 56 V factory automation rails
R_DS(ON) (HS + LS)	0.36 Ω typ. at T_j = 25 °C - minimizes conduction loss and thermal rise in high-current motor phases
Slew Rate Control	Adjustable 0.3–2 V/ns via SR pin resistor - balances EMI suppression and switching speed for EMC-compliant designs
Current Sense Gain	10 V/V (±0.5 V/V tolerance) - enables precise shunt-based current regulation with <150 ns settling time
Thermal Shutdown	150 °C with 30 °C hysteresis - protects against sustained overload in enclosed robotic joints or vending machine mechanisms
Fault Outputs	EN/nFAULTA & EN/nFAULTB open-drain - provide independent bridge-level fault signaling for real-time diagnostics and safe shutdown

Pinout & Package

STSPIN948TR is housed in a 48-pin HTSSOP package (7.2 mm × 4.4 mm, 0.5 mm pitch) with exposed thermal pad (EPAD) for low R_thJCbot = 2.4 °C/W.

Pin/Terminal	Circuit Role	Design Meaning
OUT1A / OUT2A / OUT1B / OUT2B	Power output terminals	Four high-current outputs supporting dual full-bridge or parallel half-bridge configurations; each pair shares LSSx pins for shunt placement
LSS1A / LSS2A / LSS1B / LSS2B	Low-side source nodes	Direct connection points for external current-sense shunts; enable bidirectional current monitoring per half-bridge
PHx / PWM1x (x = A,B)	Bridge control inputs	Digital phase/PWM interface defining H-bridge state transitions; supports microstepping when paired with external controller
EN/nFAULTA / EN/nFAULTB	Enable/fault bidirectional I/O	Active-low enable with integrated open-drain fault reporting - simplifies system-level safety interlocks without external logic
TOFFA / TOFFB	Analog/digital OFF-time control	Set fixed current-limit duration (1–500 µs) or output decay status signal in PWM trimming mode
SR	Analog slew-rate selection	Resistor-biased input configuring gate drive edge rate - critical for meeting CISPR-25 Class 5 radiated emissions limits

Key Features

Feature	Design Value
Dual independent full-bridge topology	Enables simultaneous control of two separate motors or one 4-phase bipolar stepper with full phase independence and fault isolation
Embedded current-sense amplifiers	Two 10 V/V gain op-amps with <200 ns settling time eliminate need for external amplifiers and reduce BOM count in space-constrained modules
Configurable decay modes	Slow or mixed decay selection per bridge via PHx and MODE settings - optimizes torque ripple and efficiency across load conditions
Integrated charge pump	Self-contained bootstrap generation (CP1/CP2/VSPUMP) eliminates external diode and reduces PCB footprint in high-voltage motor drives
UVLO with hysteresis	VS turn-on threshold = 5.2 V ±0.3 V; prevents erratic startup during brown-out conditions in battery-backed ATM and vending systems

Applications

Stage Lighting

Factory Automation

Use Scenario: Precise pan/tilt actuation of LED moving heads using 24–48 V brushed DC motors.

IC Role / Device Role / Timing Role: Dual full-bridge driver delivering synchronized torque control to two orthogonal axes with independent current limiting.

Use Value: Adjustable slew rate suppresses EMI during rapid direction reversal, ensuring compliance with IEC 61000-3-2 harmonic limits in entertainment venues.

Use Scenario: Conveyor belt indexing and gripper actuation in PLC-controlled assembly lines.

IC Role / Device Role / Timing Role: Motor driver enabling microsecond-level PWM timing accuracy and fast wake-up (<170 µs) for responsive motion control loops.

Use Value: Dual open-drain fault outputs feed directly into PLC safety inputs, enabling sub-10 ms emergency stop propagation without external logic.

Robotics Joint Control

Vending Machine Mechanisms

Use Scenario: Torque-controlled elbow/wrist joints in collaborative robots powered from 48 V DC bus.

IC Role / Device Role / Timing Role: High-current bridge managing bidirectional current flow with embedded current sensing for closed-loop torque feedback.

Use Value: Thermal shutdown with 30 °C hysteresis prevents lockup during sustained stall conditions while allowing automatic recovery after cooling.

Use Scenario: Coin validator transport, bill stacker, and product dispensing in compact retail kiosks.

IC Role / Device Role / Timing Role: Low-quiescent standby mode (I_DD,STBY = 3 µA) extends battery life during idle periods between transactions.

Use Value: Parallel half-bridge configuration doubles current capability to 4.5 A per channel, enabling direct drive of high-inertia solenoid actuators.

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 voltage rating (44 V max), no integrated current-sense amps, requires external shunt amplifiers	Lacks embedded amplifiers and programmable decay - suited for simpler open-loop stepper control only	Select when cost sensitivity outweighs need for closed-loop current regulation and compact layout
DRV8876PWPR	Single full-bridge (not dual), lower current (3.6 A), integrated current sense but no MODE-selectable decay options	Requires two devices for dual-motor control; lacks mixed-decay and parallel-mode flexibility	Choose for space-constrained single-axis applications where dual-bridge integration is unnecessary

Compared with TB6600HG and DRV8876PWPR, the STSPIN948TR uniquely delivers dual independent bridges with embedded amplifiers, five configurable driving modes, and adjustable slew rate - making it optimal for compact, high-flexibility motion subsystems requiring diagnostic-ready fault signaling and EMI-aware design.

Availability

STSPIN948TR is available at Aetrix Electronics and suitable for stage lighting, factory automation, and robotics requiring stable component supply, long-term lifecycle support, and traceable sourcing for industrial OEM programs.

Supply support for STSPIN948TR 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 automotive, industrial, and power management solutions with broad IP portfolios and manufacturing scale.

The STSPIN family targets intelligent motor control in resource-constrained embedded systems, emphasizing integration of protection, sensing, and flexible drive topologies to reduce external component count and accelerate motion-control design cycles.

FAQ

What is the minimum VS supply voltage required for reliable operation?

The STSPIN948TR requires VS ≥ 5.2 V to exit UVLO and enable power-stage operation. Below this threshold, all MOSFETs remain off and nFAULT outputs assert low. This ensures clean startup in 5 V–12 V auxiliary rails used in vending machines and ATM peripherals.

How does the SR pin adjust slew rate, and what resistor values are supported?

The SR pin accepts an external resistor (1 kΩ to 10 kΩ) to set slew rate from 2 V/ns down to 0.3 V/ns. Table 7 in DS14271 specifies exact values: 1 kΩ → 2 V/ns, 2.2 kΩ → 1.2 V/ns, 5.6 kΩ → 0.6 V/ns, 10 kΩ → 0.3 V/ns - enabling precise EMI tuning without changing layout.

Can STSPIN948TR drive a bipolar stepper motor in microstepping mode?

Yes - by applying proportional PWM signals to PHA/PHB and PWM1A/PWM1B under dual independent full-bridge mode, the device supports microstepping when paired with an external controller generating sinusoidal or trapezoidal current profiles via REFA/REFB modulation.

What happens during thermal shutdown, and how does recovery work?

At junction temperature ≥150 °C, internal thermal shutdown disables both bridges and forces EN/nFAULTA/B low. Recovery occurs automatically after temperature drops by 30 °C hysteresis; the device re-enables only after VBOOT exceeds 2 V and UVLO clears - preventing thermal cycling in stalled motor conditions.

STSPIN948TR Specifications

Product attributes: Attribute value

Manufacturer:: STMicroelectronics

Series:: -

Package/Case:: 48-VFQFN Exposed Pad

Packaging:: Tape & Reel (TR)

Product Status:: Active

Motor Type - Stepper:: Bipolar

Motor Type - AC, DC:: Brushed DC

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

Output Configuration:: Half Bridge (4)

Interface:: PWM

Technology:: Power MOSFET

Step Resolution:: -

Applications:: General Purpose

Current - Output:: 4.5A

Voltage - Supply:: 2.8V ~ 3.6V

Voltage - Load:: 5.2V ~ 58V

Operating Temperature:: -40°C ~ 85°C (TA)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 48-VFQFPN (7x7)

STSPIN948TR FAQ

1.How can I place an order for STSPIN948TR through Aetrix?

Please submit a Request for Quotation (RFQ) for STSPIN948TR 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 STSPIN948TR reliable?

The price and inventory of STSPIN948TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STSPIN948TR is usually 5 days.

3.What payment methods are accepted for STSPIN948TR?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STSPIN948TR transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for STSPIN948TR?

STSPIN948TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your STSPIN948TR 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 STSPIN948TR?

For technical support, including STSPIN948TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STSPIN948TR requirements.

6.How does Aetrix verify that STSPIN948TR is sourced from the original manufacturer or authorized distributors?

All STSPIN948TR 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 STSPIN948TR meets industry standards.

7.What is the process for return or replacement of STSPIN948TR?

All STSPIN948TR units undergo pre-shipment inspection (PSI). If there is an issue with STSPIN948TR, 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 STSPIN948TR part is unused and in its original packaging.

Return procedure for STSPIN948TR:

1.Submit a request within 90 days.

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

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