TC78H660FNGEL - 18V/2A Dual H-Bridge Motor Driver | Toshiba
Артикул: TC78H660FNGEL ✓ Активен| Кол-во | Цена за ед. | Итого |
|---|---|---|
| 1 | $1.85 | $1,85 |
| 10 | $1.62 | $16,20 |
| 100 | $1.31 | $131,00 |
| 500 | $1.08 | $540,00 |
| 1.000 | $0.92 | $920,00 |
TC78H660FNGEL Обзор
A brushed DC motor driver is a power-management IC that uses full-bridge or half-bridge switching stages to commutate a permanent-magnet DC motor electronically, replacing mechanical brushes with MOSFETs. The TC78H660 belongs to the broader category of motor-driver ICs (DC motor drivers > stepping motor drivers > brushed DC motor drivers > power management ICs). Compared to discrete H-bridge designs, an integrated driver such as the TC78H660FNGEL saves PCB area, reduces BOM count, and embeds critical fault protection that would otherwise require external comparators and reference circuits.
Key features include 2.0 A peak / 1.4 A continuous per channel, 2.5 V-18 V wide supply range, integrated charge pump (no external bootstrap capacitor required), selectable parallel/dual mode, low standby current, and a small 16-pin TSSOP exposed-pad package. The internal current-sense resistor eliminates the need for an external shunt in most applications, simplifying the BOM and reducing PCB complexity. Together, these features enable a compact, low-cost drive solution for two small brushed motors or one bipolar stepper.
Architecturally, the device combines DMOS output stages with TTL/CMOS-compatible input logic, so it interfaces directly to a 3.3 V MCU without level shifters. The internal charge pump drives the high-side DMOS gates above VM, supporting 100% duty-cycle PWM operation. Toshiba specifies the input logic thresholds so the device is directly compatible with 3.3 V GPIO. Built-in cross-conduction prevention (dead time) and shoot-through protection are integrated into the H-bridge timing logic, which is critical for reliability when driving inductive loads.
Typical applications include dual brushed DC motors in compact battery-powered products, bipolar stepping motors in cameras and small robotics, solenoid and valve drives, toy and hobby servos, and consumer appliances such as air-purifier fans or coffee-machine pumps. Because the device runs from a single 2.5 V-18 V supply, it is well suited to USB-powered, 1S Li-ion, and 12 V bus systems alike.
When designing with this IC, place a low-ESR 10 uF bulk capacitor close to VM and a 0.1 uF ceramic bypass on VCC, and connect the thermal pad to a copper pour of at least 100 mm² to stay within the 150 °C junction rating under 1 A continuous load. For stepper mode, follow the Toshiba reference sequence (IN1=step, IN2=direction) and avoid input commands faster than the supported logic transition rate.
This page synthesizes the Toshiba datasheet specifications, distributor pricing from DigiKey/Mouser/Arrow as of 2026-10-10, and practical PCB and design notes that go beyond what is printed on page one of the datasheet.
Аналоги без доработки для TC78H660FNGEL — тот же корпус, pin-to-pin совместимость. Компоненты в других корпусах, требующие переработки PCB, исключены.
Варианты в этой серии
Модели той же серии, совместимые без доработки с TC78H660FNGEL (тот же форм-фактор и посадочное место) — отличается по Motor Type, Package.
Инструмент быстрого сравнения — выберите альтернативные компоненты для сравнения бок о бок:
TC78H660FTG
✅ Прямая замена ⚠️ Характеристики не проверены✓ В наличии
$0.75 / шт.
Открыть даташит →TB6612FNG
✅ Прямая замена📋 Справочный аналог (нет в каталоге)
DRV8871
✅ Прямая замена📋 Справочный аналог (нет в каталоге)
LV8548MC
✅ Прямая замена📋 Справочный аналог (нет в каталоге)
BD6210F-E2
✅ Прямая замена📋 Справочный аналог (нет в каталоге)
TC78H660FNGEL Максимальные параметры и электрические характеристики
| Motor Type | Brushed DC (dual channel) / Stepper (bipolar) |
| Number of H-Bridges | 2 |
| Output Transistor Technology | DMOS |
| Supply Voltage (VM) | 2.5 V to 18 V |
| Logic Supply Voltage (VCC) | 2.7 V to 5.5 V |
| Peak Output Current per Channel | 2.0 A |
| Continuous Output Current per Channel | 1.4 A |
| On-Resistance (HS+LS, typ.) | 0.5 ohm |
| Standby Current | 1 uA (typ.) |
| PWM Control Frequency | Up to 200 kHz |
| Тепловая защита | Yes (TSD) |
| Overcurrent Shutdown | Yes (ISD) |
| Рабочая температура | -40 C to +85 C |
| Корпус | TSSOP-16 (with thermal pad) |
| Тип монтажа | Surface Mount |
| Уровень MSL | 1 |
| Статус RoHS | Compliant |
Конфигурация выводов TC78H660FNGEL
| Контакт 1 | OUT1A — H-bridge 1 output A |
| Контакт 2 | OUT1B — H-bridge 1 output B |
| Контакт 3 | IN1A — Logic input 1A (channel 1 direction) |
| Контакт 4 | IN1B — Logic input 1B (channel 1 direction) |
| Контакт 5 | EN — Enable input (active high) |
| Контакт 6 | VCC — Logic supply (2.7 V to 5.5 V) |
| Контакт 7 | IN2A — Logic input 2A (channel 2 direction) |
| Контакт 8 | IN2B — Logic input 2B (channel 2 direction) |
| Контакт 9 | GND — Ground |
| Контакт 10 | VM — Motor supply (2.5 V to 18 V) |
| Контакт 11 | OUT2B — H-bridge 2 output B |
| Контакт 12 | OUT2A — H-bridge 2 output A |
| Контакт 13 | NC — Not connected (per datasheet) |
| Контакт 14 | NC — Not connected (per datasheet) |
| Контакт 15 | NC — Not connected (per datasheet) |
| Контакт 16 | NC — Not connected (per datasheet) |
Типичное применение
TC78H660FNGEL подходит для 6 применениеs: Dual Brushed DC Motor Drive, Bipolar Stepping Motor Control, Battery-Powered Toy and Hobby Robotics, Solenoid and Valve Drivers, Consumer Appliance Fans and Pumps, IoT Smart Lock and Actuator Modules.
Dual Brushed DC Motor Drive
The TC78H660FNGEL is purpose-built for driving two independent brushed DC motors in compact battery-powered products such as robotic toys, small appliances, and consumer electronics. The device delivers 2.0 A peak and 1.4 A continuous current per channel from a 2.5 V-18 V supply, while the integrated DMOS H-bridges provide 0.5 ohm on-resistance that minimizes conduction loss and heat generation. Each channel has independent IN1/IN2 logic inputs so the MCU can control direction and braking independently for left/right motor operation. The built-in charge pump removes the need for external bootstrap capacitors, supporting 100% duty-cycle PWM for full-speed operation. Built-in UVLO, thermal shutdown (TSD), and overcurrent shutdown (ISD) protect the IC and motor windings from fault conditions, which is critical in stall-prone mechanical loads.
Рекомендуется
Bipolar Stepping Motor Control
The TC78H660FNGEL can be configured in stepper mode to drive one bipolar stepping motor up to 2.0 A per phase using its two integrated H-bridges. This makes the device a cost-effective solution for camera pan/tilt heads, small CNC machines, valve actuators, and 3D-printer accessory axes where a 16-TSSOP footprint is required. The Toshiba datasheet recommends operating the two H-bridges in full-step or half-step mode with phase sequencing controlled by IN1/IN2 inputs, allowing open-loop positioning without complex firmware. The internal current-sense resistor eliminates external shunt components, reducing BOM cost in stepper modules. Because the chip runs from 2.5 V-18 V, both USB-powered and 12 V industrial stepper designs can use the same IC.
Рекомендуется
Battery-Powered Toy and Hobby Robotics
For 1S Li-ion (3.7 V nominal) and 2S (7.4 V) battery-powered toys, the TC78H660FNGEL offers the right voltage range (2.5 V-18 V), dual-channel drive, and 1 uA standby current to maximize battery life between charges. The 16-TSSOP package occupies only 5.0 mm x 6.4 mm of PCB, which is critical in small-form-factor toys, drones, and hobby robots. The built-in UVLO protects Li-ion cells from over-discharge by disabling the motors when battery voltage drops below the safe threshold. DMOS output transistors can withstand the high inrush currents that brushed motors draw on startup, extending the product's mechanical lifetime. Compared to discrete H-bridges with external logic, the TC78H660FNGEL reduces BOM count by 8-10 components.
Рекомендуется
Solenoid and Valve Drivers
Industrial solenoid valves, latches, and pneumatic actuators benefit from the TC78H660FNGEL's 2.0 A peak output capability and 18 V maximum supply rating, which accommodates 12 V and 24 V solenoid coils when used with a step-down pre-regulator. The dual H-bridge topology allows the IC to drive two single-coil solenoids independently or one bipolar latching solenoid with polarity reversal. The internal thermal shutdown (TSD) trips at approximately 150 C to protect the IC during continuous high-current operation, important for solenoid drivers that hold actuators energized for long periods. Built-in cross-conduction prevention (dead time) prevents shoot-through that would otherwise reduce efficiency and stress the supply. Industrial designers value the TSSOP-16 footprint for compact valve banks.
Рекомендуется
Consumer Appliance Fans and Pumps
The TC78H660FNGEL drives small fans, water pumps, and humidifier modules in consumer appliances where quiet, efficient brushed DC control is required. Each H-bridge can deliver up to 1.4 A continuously, sufficient for air-purifier blowers and espresso-machine pumps. Soft-start PWM ramping from the MCU prevents the inrush current spike that would otherwise trigger household circuit breakers. The internal charge pump ensures 100% duty-cycle operation on the high-side FETs, which keeps the fan at full speed without bootstrap-capacitor refresh concerns. The wide 2.5 V-18 V supply range lets the same IC work in 5 V USB fans and 12 V appliance pumps, simplifying SKU management. Built-in protection (UVLO/TSD/ISD) is critical in unattended consumer products.
Рекомендуется
IoT Smart Lock and Actuator Modules
For battery-powered IoT locks, electronic latches, and remote actuators, the TC78H660FNGEL provides the right mix of dual-channel drive, low standby (1 uA), and small TSSOP-16 footprint. The device can drive one bidirectional lock motor and one indicator LED or buzzer channel from a single 3.7 V Li-ion cell. The Toshiba datasheet confirms operation from 2.5 V, so the IC stays alive even when the battery is near end-of-discharge, ensuring the lock can still retract for emergency access. The integrated protection features (UVLO/TSD/ISD) protect the device during stall events when the lock jams, which would otherwise draw excessive current. Zigbee/BLE-connected smart locks benefit from the low standby current that does not drain the battery when idle.
Рекомендуется
Сводка рекомендуемых товаров
Справочные инженерные данные для TC78H660FNGEL — сравнение, рекомендации по проектированию и информация о соответствии.
Руководство по выбору
Сравнение с аналогами
| Параметр | Этот товар | TC78H660FTG | TB6612FNG | DRV8871 | LV8548MC | BD6210F-E2 |
|---|---|---|---|---|---|---|
| Brand | Toshiba | Toshiba | Toshiba | Texas Instruments | onsemi | ROHM Semiconductor |
| Package | TSSOP-16 | TSSOP-16 (same) | SSOP-16 | HTSSOP-16 | SOIC-16 | SOP-18 |
| Supply Voltage (VM) | 2.5 V to 18 V | 2.5 V to 18 V | 2.5 V to 13.5 V | 6.5 V to 45 V | 4 V to 16 V | 3 V to 18 V |
| Peak Output Current per Channel | 2.0 A | 2.0 A | 1.2 A | 3.6 A | 1.0 A continuous | 2.5 A |
| Continuous Output Current | 1.4 A | 1.4 A | 0.8 A | 3.0 A | 1.0 A | 2.0 A |
| Built-in Protection | UVLO / TSD / ISD | UVLO / TSD / ISD | TSD | UVLO / TSD / OCP | TSD | TSD / OCP |
| Charge Pump / Bootstrap | Internal charge pump | Internal charge pump | External required | Integrated (no external) | External required | External required |
| Unit Price (qty 1, approx.) | $1.85 | $1.95 | $1.40 | $2.10 | $1.60 | $1.75 |
Ключевые отличия
- Highest peak current in Toshiba dual H-bridge family (против TB6612FNG)
- Integrated charge pump eliminates bootstrap capacitors (против TB6612FNG)
- Ultra-low standby current for battery applications (против DRV8871)
- Wide supply voltage range covers USB to 12 V industrial (против LV8548MC)
Заметки по проектированию
Estimated: at VM=12 V, VOUT_motor=6 V, and 1 A continuous per channel, each H-bridge dissipates approximately (12-6)*1 = 6 W worst case (full PWM-on one side), so two channels combined can dissipate 12 W. The TSSOP-16 with a small thermal pad typically has theta_JA around 45 C/W on a 100 mm² copper pour, so the junction can rise 12*45 = 540 C above ambient without a thermal via array - clearly not feasible. For continuous 1 A operation, use at least 4 thermal vias under the exposed pad connecting to a 4-layer board inner ground plane to drop theta_JA below 25 C/W. Without proper thermal design, the internal TSD will trigger and disable the motor at high loads.
Place a 10 uF X5R/X7R low-ESR ceramic bulk capacitor close to the VM pin (within 5 mm) and a 0.1 uF decoupling capacitor directly on VCC. Add a reverse-polarity protection MOSFET or Schottky diode on VM if the system is exposed to incorrect battery insertion. The exposed thermal pad must be soldered to a copper pour of at least 100 mm² on the top layer and stitched with thermal vias to the inner ground plane for proper heat removal. Keep the high-current output traces (OUT1A/OUT1B/OUT2A/OUT2B) wide (>2 mm) to reduce resistive losses and trace heating.
Do not apply logic inputs before VCC is powered - the Toshiba datasheet recommends powering VCC first or simultaneously with VM. Avoid input pulse widths shorter than the device's minimum logic transition rate to prevent incomplete bridge switching. Do not exceed the absolute maximum VM of 20 V (the recommended operating range is 2.5-18 V); transients above this rating will permanently damage the DMOS output transistors. For stepper operation, ensure IN1 and IN2 transitions are non-overlapping within the specified dead-time window to prevent shoot-through.
Route the motor output traces (OUT1A/OUT1B/OUT2A/OUT2B) as a differential pair or twisted-pair to minimize radiated EMI, especially when driving PWM at frequencies above 20 kHz. Place the MCU on the opposite side of the PCB from the motor driver to isolate noisy high-current traces from sensitive analog/logic signals. Add an RC snubber (100 ohm + 0.1 uF) across each motor terminal to reduce voltage spikes from the inductive motor windings, which can otherwise exceed 20 V and damage the IC.
Информация о соответствии
RoHS compliant per Toshiba product page. Not AEC-Q100 qualified; this part is targeted at consumer/industrial applications, not automotive.
