My Inquiry
My Account
Toshiba Semiconductor and Storage TC78H600FTG,EL
- Part No.:
- TC78H600FTG,EL
- Manufacturer:
- Toshiba Semiconductor and Storage
- Category:
- Motor Drivers, Controllers
- Package:
- 24-WFQFN Exposed Pad
- Datasheet:
-
TC78H600FTG,EL.pdf
- Description:
- IC MOTOR DRIVER 2.7V-5.5V 24WQFN
- Quantity:
- Payment:
- Shipping:
Inventory:5,000
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
TC78H600FTG,EL from Toshiba is a dual-H-bridge DC motor driver IC with integrated DMOS output transistors, 0.8 A continuous per channel, 1.2 Ω total ON-resistance (upper + lower), and support for both Direct PWM and Constant Current PWM control modes. It drives brushed DC motors in robotics, office automation, and portable equipment requiring compact, thermally robust motor control.
For engineers reviewing the TC78H600FTG,EL datasheet, TC78H600FTG,EL pinout, TC78H600FTG,EL application, or TC78H600FTG,EL equivalent, key selection criteria include its QFN24 package thermal performance (3.17 W dissipation on 4-layer board), dual independent bridge operation, built-in overcurrent (ISD) and thermal shutdown (TSD) protection, and selectable current regulation via Vref and RNF.
Technical Context
The TC78H600FTG,EL implements two fully independent H-bridges with cross-conduction prevention and internal dead-time generation (300 ns typ.) to eliminate shoot-through during PWM transitions. Each bridge supports bidirectional drive, short-brake, and high-impedance stop modes controlled by IN1/IN2 logic inputs.
It offers two distinct motor control architectures: Direct PWM mode (RSGNDA/RSGNDB and Vref grounded) for simple speed/torque modulation, and Constant Current PWM mode (SELECT = H, external RNF + Vref) enabling precise peak current regulation (IOUT = (VREF/5) / RNF) with fixed 12.5% fast-decay chopping at 20–60 kHz.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output current (continuous) | 0.8 A per channel - enables driving small-to-medium brushed DC motors without external heatsinking under typical PCB thermal conditions |
| Output ON resistance (RON) | 1.2 Ω (upper + lower) - limits conduction loss to ≤0.77 V drop at 0.6 A, supporting efficient operation at VM = 5–12 V |
| Motor supply voltage (VM) | 2.5 V to 15 V - compatible with single-cell Li-ion (3.7 V), dual-cell alkaline (3 V), and 12 V industrial rails |
| Logic supply voltage (Vcc) | 2.7 V to 5.5 V - interoperable with 3.3 V and 5 V microcontrollers without level-shifting |
| Thermal shutdown threshold | 170 °C (typ.) with 40 °C hysteresis - provides automatic recovery after transient overload, protecting against sustained overtemperature |
| Overcurrent detection (ISD) | 1.7 A (typ.) latch-off - detects fault currents exceeding safe SOA and holds outputs disabled until UVLO reset |
| PWM input frequency | 1–500 kHz - supports high-resolution speed control and noise reduction via spread-spectrum techniques |
Pinout & Package
TC78H600FTG,EL uses a 24-pin P-WQFN package (4.0 mm × 4.0 mm, 0.5 mm pitch, exposed thermal pad), optimized for low thermal resistance (θJA = 39.5 °C/W on 4-layer board). The package includes an exposed die pad for direct PCB thermal coupling.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| AO1, AO2, BO1, BO2 | H-bridge output terminals | Drive motor coil connections for two independent DC motors or one bipolar stepper phase; require external flyback paths |
| RSGNDA, RSGNDB | Current sense resistor return | Connect external RNF (≥0.3 Ω) to enable constant-current PWM mode; sets IOUT precision via Vref |
| Vref | Reference voltage input | Configures output current in constant-current mode: IOUT = (VREF/5) / RNF; range 0.4–(Vcc−1.8) V |
| PWMA, PWMB | PWM signal inputs | Accept external PWM signals for speed control; also support IN1/IN2 toggling for PWM generation without dedicated pins |
| IN1A, IN2A, IN1B, IN2B | Bridge direction control | Determine CW/CCW/brake/stop states per bridge; TTL-compatible with internal 200 kΩ pull-downs |
| STBY | Standby enable | Active-low global disable: places all outputs in high-impedance state and reduces ICC to 5–10 μA |
| ALERT | Open-drain fault indicator | Asserts low on TSD or ISD activation; requires external pull-up; sinks ≤4 mA at ≤0.5 V |
| SELECT | Control mode selector | High = Constant Current PWM; Low = Direct PWM - determines whether RSGND/Vref are used for regulation |
| OSC | Oscillator timing capacitor | Connects external 220 pF capacitor to set internal oscillator at 210–430 kHz; defines chopping frequency in constant-current mode |
| Vcc, VM, GND | Power supplies | Vcc powers logic (2.7–5.5 V); VM powers motor outputs (2.5–15 V); separate GND pins minimize noise coupling |
Key Features
| Feature | Design Value |
|---|---|
| Integrated cross-conduction protection | Prevents simultaneous high-side/low-side FET turn-on via hardware-enforced dead time (300 ns typ.), eliminating need for external timing circuits |
| Built-in overcurrent and thermal protection | ISD latches at 1.7 A (typ.) per DMOS; TSD disables outputs at 170 °C (typ.) with 40 °C hysteresis - enables self-protecting motor control without external monitoring |
| Dual independent H-bridge architecture | Supports two separate brushed DC motors or coordinated motion control; each bridge has full IN1/IN2/PWM control and fault reporting |
| Two configurable drive modes | Direct PWM (simple speed control) and Constant Current PWM (precise torque regulation via Vref/RNF) - selectable via single SELECT pin |
| Low-power standby mode | Reduces ICC to 5–10 μA while maintaining pin state awareness - ideal for battery-powered devices requiring rapid wake-up |
Applications
| Robotics Actuation | Office Automation |
|---|---|
Use Scenario: Driving dual-axis pan-tilt mechanisms in security cameras and collaborative robots using two independent 12 V brushed DC motors. IC Role / Device Role / Timing Role: Dual-H-bridge motor driver providing bidirectional rotation, braking, and stall detection via ALERT output. Use Value: Enables compact, thermally efficient motor control with integrated ISD/TSD protection - eliminates need for discrete current sensing and thermal monitoring circuitry. | Use Scenario: Controlling paper feed and scanner carriage motors in multifunction printers with variable load profiles. IC Role / Device Role / Timing Role: Constant-current PWM mode regulates torque during paper jam events; SELECT pin switches between speed (Direct PWM) and torque (Constant Current) control. Use Value: Prevents motor burnout during jams by limiting peak current to 0.8 A while maintaining responsive speed control during normal operation. |
| Portable Medical Devices | Industrial Valve Control |
Use Scenario: Precision dosing pump actuation in handheld insulin delivery systems powered by single-cell Li-ion batteries. IC Role / Device Role / Timing Role: Motor driver operating from 3.3 V logic and 3.7–4.2 V motor rail; uses STBY for ultra-low-power sleep between doses. Use Value: Delivers 0.8 A peak current with <1.2 Ω RON to ensure consistent flow rate across battery discharge cycle - critical for dosage accuracy. | Use Scenario: Modulating 24 V solenoid valves in HVAC control panels where EMI and thermal reliability are critical. IC Role / Device Role / Timing Role: H-bridge driver implementing PWM-controlled valve opening/closing with ALERT-based fault logging for maintenance alerts. Use Value: Built-in UVLO (2.0 V VM threshold) prevents erratic valve behavior during brownout; TSD ensures fail-safe shutdown before thermal runaway. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-H-bridge motor driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TB6612FNG | Same 0.8 A rating and SSOP20/QFN24 packaging; lacks ALERT pin and constant-current PWM mode; higher RON (2.6 Ω typ.) | Suitable for cost-sensitive, non-fault-reporting applications where only basic PWM speed control is needed | Choose TB6612FNG when ALERT signaling and precise current regulation are unnecessary and thermal budget allows higher conduction loss |
| DRV8833 | Lower 1.5 A peak rating but smaller 16-pin QFN; supports 2.7–10.8 V VM; no integrated current sense or constant-current mode | Better suited for space-constrained, low-voltage (<10 V) portable designs where fault reporting is handled externally | Select DRV8833 when board area is critical and motor supply stays below 10.8 V; avoid for 12–15 V industrial use due to VM limit |
Compared with TB6612FNG and DRV8833, TC78H600FTG,EL uniquely combines ALERT-based fault visibility, constant-current regulation via Vref/RNF, and 15 V VM tolerance - making it optimal for applications demanding diagnostic capability, torque consistency, and wide-input flexibility.
Availability
TC78H600FTG,EL is available at Aetrix Electronics and suitable for robotics actuation, office automation, portable medical devices, and industrial valve control requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for TC78H600FTG,EL 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
Toshiba Electronic Devices & Storage Corporation designs high-reliability analog, power, and motor control ICs for industrial, automotive, and consumer applications, with emphasis on integration, efficiency, and protection.
The TC78H600FTG,EL belongs to Toshiba's TC78H series of dual-H-bridge drivers engineered specifically for compact, thermally efficient brushed DC motor control in space- and power-constrained systems.
FAQ
What is the maximum continuous output current per channel for the TC78H600FTG,EL?
The TC78H600FTG,EL supports 0.8 A continuous output current per H-bridge channel under specified thermal conditions (Ta ≤ 85 °C, mounted on 4-layer PCB per JESD-51). This rating assumes proper PCB copper area and airflow; derating is required above 85 °C ambient or with reduced thermal mass. Peak current capability is 1.0 A for ≤10 ms pulses at 20% duty cycle.
How does the TC78H600FTG,EL implement constant-current PWM control?
The TC78H600FTG,EL enters constant-current PWM mode when the SELECT pin is driven high. In this mode, the user connects external current-sense resistors (RNF ≥ 0.3 Ω) to RSGNDA/RSGNDB and applies a reference voltage (0.4–Vcc−1.8 V) to Vref. Output current is regulated as IOUT = (VREF/5) / RNF, with chopping frequency set by the OSC capacitor (20–60 kHz).
Does the TC78H600FTG,EL require external flyback diodes for motor inductive kickback protection?
No - the TC78H600FTG,EL integrates body diodes in its DMOS output transistors that provide inherent flyback current paths during PWM off-times. However, layout best practices still require low-inductance routing and local ceramic decoupling (0.1 µF) near VM and GND pins to suppress voltage spikes and ensure reliable operation under dynamic loads.
What protection features are built into the TC78H600FTG,EL?
The TC78H600FTG,EL includes three core protection circuits: overcurrent detection (ISD) that latches off outputs at 1.7 A (typ.) per DMOS transistor; thermal shutdown (TSD) that disables outputs at 170 °C (typ.) junction temperature with 40 °C hysteresis; and under-voltage lockout (UVLO) for both Vcc (2.2 V threshold) and VM (2.0 V threshold) to prevent erratic operation during brownout conditions.
Can the TC78H600FTG,EL drive a bipolar stepper motor?
Yes - the TC78H600FTG,EL can drive one bipolar stepper motor phase (requiring two H-bridges) by configuring AO1/AO2 as Phase A and BO1/BO2 as Phase B. Its independent control of each bridge via IN1/IN2/PWM allows full-step, half-step, and microstepping when paired with an external controller generating appropriate step/direction sequences and current profiles.
TC78H600FTG,EL Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Toshiba Semiconductor and Storage
- Series:
- -
- Package/Case:
- 24-WFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Motor Type - Stepper:
- -
- Motor Type - AC, DC:
- Brushed DC
- Function:
- Driver - Fully Integrated, Control and Power Stage
- Output Configuration:
- Half Bridge (4)
- Interface:
- PWM
- Technology:
- DMOS
- Step Resolution:
- -
- Applications:
- General Purpose
- Current - Output:
- 800mA
- Voltage - Supply:
- 2.7V ~ 5.5V
- Voltage - Load:
- 2.5V ~ 15V
- Operating Temperature:
- -20°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 24-WQFN (4x4)
TC78H600FTG,EL FAQ
1.How can I place an order for TC78H600FTG,EL through Aetrix?
Please submit a Request for Quotation (RFQ) for TC78H600FTG,EL 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 TC78H600FTG,EL reliable?
The price and inventory of TC78H600FTG,EL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TC78H600FTG,EL is usually 5 days.
3.What payment methods are accepted for TC78H600FTG,EL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TC78H600FTG,EL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TC78H600FTG,EL?
TC78H600FTG,EL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TC78H600FTG,EL 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 TC78H600FTG,EL?
For technical support, including TC78H600FTG,EL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TC78H600FTG,EL requirements.
6.How does Aetrix verify that TC78H600FTG,EL is sourced from the original manufacturer or authorized distributors?
All TC78H600FTG,EL 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 TC78H600FTG,EL meets industry standards.
7.What is the process for return or replacement of TC78H600FTG,EL?
All TC78H600FTG,EL units undergo pre-shipment inspection (PSI). If there is an issue with TC78H600FTG,EL, 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 TC78H600FTG,EL part is unused and in its original packaging.
Return procedure for TC78H600FTG,EL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TC78H600FTG,EL Tags
-
DRV2603RUNR
Texas Instruments
-
DRV8837CDSGR
Texas Instruments
-
DRV8837DSGR
Texas Instruments
-
DRV8838DSGR
Texas Instruments
-
DRV8839DSSR
Texas Instruments
-
EMC2301-1-ACZL-TR
Microchip Technology
-
DRV8231ADSGR
Texas Instruments
-
EMC2302-2-AIZL-TR
Microchip Technology
-
DRV8800PWPR
Texas Instruments
-
DRV8835DSSR
Texas Instruments
-
EMC2303-1-KP-TR
Microchip Technology
-
DRV8876PWPR
Texas Instruments
Tech Hub
Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
