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STMicroelectronics TD310IN
- Part No.:
- TD310IN
- Manufacturer:
- STMicroelectronics
- Category:
- Gate Drivers
- Package:
- 16-DIP (0.300", 7.62mm)
- Datasheet:
-
TD310IN.pdf
- Description:
- IC GATE DRVR LOW-SIDE 16DIP
- Quantity:
- Payment:
- Shipping:
Inventory:4,409
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Product details
Overview
TD310IN from STMicroelectronics is a triple-channel IGBT/MOSFET driver with integrated current-sense comparator, uncommitted op-amp, and programmable UVLO/standby control. It delivers 0.6 A peak output per channel, operates from 4 V to 16 V single supply, features 7 Ω typical output impedance at 200 mA, and supports low-side or half-bridge configurations in three-phase motor drives.
For engineers reviewing the TD310IN datasheet, TD310IN pinout, TD310IN application, or TD310IN equivalent, key selection criteria include its 600 ns sense-triggered output inhibition time, 1 MHz op-amp gain-bandwidth product, 20 mV sense input offset voltage, and dual-mode UVLO/stdby pin functionality for system-level power sequencing and fault recovery.
Technical Context
The TD310IN integrates three independent gate drivers with matched propagation delays (≤200 ns typ.), differential delay ≤20 ns between channels, and demagnetizing capability (2 V drop at 100 mA). Its current-sense comparator provides 40 mV hysteresis and 1 ms inhibition time upon overcurrent detection, feeding an active-low alarm output.
The embedded op-amp operates with rail-to-rail common-mode input (0 to VCC−1.5 V), 10 mV input offset, and 0.6 V/µs slew rate into 100 kΩ//100 pF load - enabling precise shunt-based current measurement before MCU ADC sampling without external signal conditioning.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Output Current | 0.6 A per channel - sufficient to drive medium-power IGBTs (e.g., 50 A/600 V) with fast turn-on/turn-off in motor control inverters |
| Supply Voltage Range | 4 V to 16 V - compatible with industrial 5 V, 12 V, and 15 V rails without external regulators |
| Sense Input Offset | 20 mV - enables accurate overcurrent detection down to ~20 mV across shunt resistors (e.g., 10 mΩ → 2 A trip threshold) |
| Op-Amp GBP | 1 MHz - supports stable closed-loop gain up to ×100 at DC–10 kHz for current sensing amplification |
| UVLO Threshold | Adjustable 10.7–13.3 V internal default - allows system-level brown-out protection tuned via external resistor divider |
| Standby Current | 30 µA - reduces system standby power in battery-backed or energy-sensitive applications |
| Propagation Delay | 200–400 ns - ensures tight timing alignment across three phases in PMSM/BLDC commutation |
Pinout & Package
TD310IN is supplied in a 16-pin plastic DIP package (0.300" wide), with 2.54 mm lead pitch, 20 mm body length, and through-hole mounting compatibility.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC | Positive Supply Rail | Single 4–16 V supply powering all drivers, comparator, op-amp, and logic - requires ≥1 µF local decoupling |
| INA/INB/INC | Inverting Logic Inputs | CMOS/LSTTL-compatible inputs with hysteresis - accept PWM or level-shifted control signals directly from MCUs |
| Enable | Global Output Enable | Active-high enable controlling all three driver outputs simultaneously - used for emergency shutdown or phase disable |
| Alarm | Open-Drain Fault Indicator | Active-low signal indicating overcurrent event - sinks up to 35 mA to trigger MCU interrupt or latch circuit |
| OA Output / OA Input+ / OA Input− | Uncommitted Op-Amp Terminals | Configurable as transimpedance amplifier, differential shunt monitor, or voltage follower - referenced to GND, rail-to-rail input |
| Sense+ / Sense− | Current-Sense Comparator Inputs | Differential inputs monitoring shunt voltage - 40 mV hysteresis prevents chatter during transient overloads |
| GND | Power & Signal Reference | Common return for supply, logic, sense, and op-amp - must be low-impedance connection to minimize noise coupling |
| OUTA/OUTB/OUTC | Driver Outputs | Low-impedance (7 Ω typ.) totem-pole outputs - drive IGBT/MOS gates directly or pulse transformers with <1 µs pulse capability |
| UVLO/Stby | Programmable Supply Monitor | Multi-function pin setting UVLO threshold and standby entry point - 0.3–1.1 V threshold range with 0.7/1.2 × VUVLO ratio |
Key Features
| Feature | Design Value |
|---|---|
| Triple Independent Gate Drivers | Matched propagation delay (<200 ns) and differential skew (<20 ns) enable synchronized three-phase switching without external timing compensation |
| Integrated Current-Sense Comparator | 40 mV hysteresis and 1 ms blanking time prevent false triggering during switching transients while ensuring fast fault response |
| Uncommitted Rail-to-Rail Op-Amp | 1 MHz GBP and 0.6 V/µs slew rate support high-fidelity shunt current amplification up to 10 kHz bandwidth for closed-loop motor control |
| Programmable UVLO + Standby Mode | Single-pin dual-function control allows coordinated brown-out protection and ultra-low-power sleep mode (30 µA) without additional supervisor ICs |
| Channel Paralleling Capability | Outputs can be paralleled to double peak current (1.2 A) for driving higher-capacity IGBT modules in high-power inverters |
Applications
| Three-Phase Motor Drive | Pulse Transformer Interface |
|---|---|
Use Scenario: Driving low-side IGBTs in a 3-phase inverter for BLDC or PMSM motors in HVAC compressors or industrial pumps. IC Role / Device Role / Timing Role: Triple-channel gate driver providing synchronized, high-current gate pulses with real-time overcurrent shutdown via integrated sense comparator. Use Value: Eliminates need for three discrete drivers and external current-sense circuitry - reduces BOM count and PCB area by >40% vs. discrete solution. | Use Scenario: Isolating control signals from high-voltage IGBT stacks using pulse transformers in solar string inverters or UPS systems. IC Role / Device Role / Timing Role: High-speed, low-impedance driver delivering clean 1 µs pulses with controlled edge rates to avoid transformer saturation. Use Value: 0.6 A peak current and 7 Ω output impedance ensure reliable transformer excitation without external buffer stages. |
| Industrial Power Supply Protection | Energy-Efficient Standby Control |
Use Scenario: Monitoring primary-side current in resonant LLC converters to shut down gate drive on overcurrent events. IC Role / Device Role / Timing Role: Current-sense comparator with 600 ns output inhibition delay and open-drain alarm output interfacing directly with PWM controller shutdown pin. Use Value: Sub-microsecond fault response protects MOSFETs before thermal runaway occurs - meets IEC 62368-1 fault containment requirements. | Use Scenario: Reducing idle power in programmable logic controllers (PLCs) during non-operational periods. IC Role / Device Role / Timing Role: Dual-threshold UVLO/Stby pin enabling automatic transition to 30 µA standby mode when supply drops below 0.7×VUVLO. Use Value: Enables full-system wake-up from microamp-level sleep without external PMIC - extends battery life in portable test equipment. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar triple-channel IGBT/MOSFET driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| IRS21844SPbF | Half-bridge focused (2 high-side + 2 low-side), no integrated op-amp or sense comparator; 600 V rating; bootstrap-dependent | Requires external current sensing and separate op-amp; suited for high-voltage bridge topologies, not low-side-only or transformer drive | Select when high-side drive and 600 V isolation are required; avoid if standalone low-side triple drive or analog monitoring is needed |
| TLP350D | Optocoupled single-channel driver; no integrated sense/comparator/op-amp; 2.5 A peak; 5 kV isolation | Provides galvanic isolation but lacks multi-channel integration and analog functions - needs three units plus external circuitry | Select only when reinforced isolation is mandatory; otherwise increases cost, size, and propagation skew vs. TD310IN's monolithic solution |
Compared with IRS21844SPbF and TLP350D, TD310IN uniquely combines triple low-side drive, current-sense comparator, and op-amp in one DIP-16 package - reducing component count and inter-channel timing mismatch while supporting direct shunt-based current feedback without isolation overhead.
Availability
TD310IN is available at Aetrix Electronics and suitable for three-phase motor drives, pulse transformer interfaces, and industrial power supply protection requiring stable component supply and long-term obsolescence management.
Supply support for TD310IN 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, designing and manufacturing analog, mixed-signal, power, and microcontroller solutions for industrial, automotive, and consumer markets.
The TD310IN belongs to ST's high-voltage power driver product line, engineered specifically for robust, integrated gate driving in motor control, UPS, and industrial power conversion systems where reliability, timing precision, and analog integration are critical.
FAQ
What is the maximum allowable sense input voltage range for TD310IN?
The sense input pins (Sense+ and Sense−) tolerate −0.3 V to VCC. This allows direct connection to bidirectional shunt resistors without clamping diodes, supporting both forward and reverse current monitoring in regenerative braking circuits. The 20 mV input offset and 40 mV hysteresis ensure stable operation across the full common-mode range.
Can the op-amp in TD310IN be used in unity-gain stable configuration?
Yes - the op-amp has a 1 MHz gain-bandwidth product and is internally compensated for unity-gain stability. It delivers 0.6 V/µs slew rate with 100 kΩ load and 100 pF capacitive load, making it suitable for low-noise, low-distortion current-sense amplification without external compensation components.
How does the UVLO/Stby pin behave when left unconnected?
An unconnected UVLO/Stby pin defaults to high-impedance, causing undefined behavior. STMicroelectronics specifies that if UVLO remains unadjusted, the pin must be bypassed with a 1 nF capacitor to VCC to stabilize the internal reference and prevent erratic standby transitions due to noise coupling.
Is TD310IN pin-compatible with other members of the TD3xx family?
No - TD310IN is not pin-compatible with TD311IN or TD312IN. While all share the same DIP-16/SO-16 footprint, pin assignments differ significantly: TD311IN omits the op-amp terminals and adds dedicated high-side bootstrap inputs, and TD312IN reassigns Sense+/Sense− to different pins. Board layout must be verified per datasheet.
TD310IN Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- -
- Package/Case:
- 16-DIP (0.300", 7.62mm)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Driven Configuration:
- Low-Side
- Channel Type:
- Independent
- Number of Drivers:
- 3
- Gate Type:
- IGBT, N-Channel MOSFET
- Voltage - Supply:
- 4V ~ 16V
- Logic Voltage - VIL, VIH:
- 0.8V, 2V
- Current - Peak Output (Source, Sink):
- -
- Input Type:
- Inverting
- High Side Voltage - Max (Bootstrap):
- -
- Rise / Fall Time (Typ):
- -
- Operating Temperature:
- -40°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 16-DIP
TD310IN FAQ
1.How can I place an order for TD310IN through Aetrix?
Please submit a Request for Quotation (RFQ) for TD310IN 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 TD310IN reliable?
The price and inventory of TD310IN are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TD310IN is usually 5 days.
3.What payment methods are accepted for TD310IN?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TD310IN transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TD310IN?
TD310IN orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TD310IN 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 TD310IN?
For technical support, including TD310IN datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TD310IN requirements.
6.How does Aetrix verify that TD310IN is sourced from the original manufacturer or authorized distributors?
All TD310IN 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 TD310IN meets industry standards.
7.What is the process for return or replacement of TD310IN?
All TD310IN units undergo pre-shipment inspection (PSI). If there is an issue with TD310IN, 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 TD310IN part is unused and in its original packaging.
Return procedure for TD310IN:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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