BETAMotor supply2.5–13.5 V operating
Dual brushed-DC motor driver
TB6612FNG Specifications
Review TB6612FNG electrical specifications, operating conditions and package details.
Key specifications
Direction logic selects which MOS switches conduct. PWM alternates drive and short brake; standby releases both outputs. Separate logic and motor rails share a ground reference.
Logic supply2.7–5.5 V
PWM ceiling100 kHz
Ambient range−20–85 °C
Package details
TB6612FNG · SSOP-24
| Property | Details |
|---|---|
| Manufacturer | Toshiba |
| Part number | TB6612FNG |
| Package | SSOP-24 |
| Connections | 24 pins |
| Mounting | SMD |
| Lead pitch | 0.65 mm |
| Package code | SSOP-24 |
| Thermal reference | −20°C to +85°C ambient |
Supply and operating limits
Recommended conditions versus absolute ratings
Manufacturer specifications 8 parameters
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| Parameter | Value | Conditions / notes |
|---|---|---|
| VM motor rail | 2.5–13.5 V | 5 V example; allow margin for regenerated energy |
| VCC logic rail | 2.7–5.5 V | 3.3 V example |
| Output current, no PWM | 1.0 A maximum | Operating table at VM ≥4.5 V |
| Output current, low VM | 0.4 A maximum | Operating table at 2.5 V ≤ VM <4.5 V, without PWM |
| PWM switching | Up to 100 kHz | Use a suitable controller and motor |
| Ambient range | −20°C to +85°C | Derate power as ambient rises |
| Absolute motor / logic supply | 15 V / 6 V | Stress limits, not operating setpoints |
| Absolute current headline | 1.2 A per channel | Thermal and pulse conditions still apply |
No specifications match. Try a parameter name or a unit.
Supply levels, current, duty cycle and PCB thermal design must be considered together.
Input thresholds and current
Control inputs are referenced to VCC
Manufacturer specifications 6 parameters
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| Parameter | Value | Conditions / notes |
|---|---|---|
| HIGH / LOW thresholds | ≥0.7×VCC / ≤0.3×VCC | At 3.3 V: ≥2.31 V / ≤0.99 V |
| Input pulldowns | 200 kΩ nominal | IN1, IN2, PWM and STBY |
| Logic supply current | 1.1 mA typical; 1.8 mA maximum | VCC=3 V, VM=5 V, STBY=HIGH |
| Standby logic current | 1 µA maximum | STBY=LOW |
| Standby motor-rail current | 1 µA maximum | Specified standby conditions |
| Input HIGH current | 5 / 15 / 25 µA | Minimum / typical / maximum at VIN=3 V |
No specifications match. Try a parameter name or a unit.
A 3.3 V controller is directly compatible when VCC is also 3.3 V.
Direction, brake and standby
Tuple order: IN1 · IN2 · PWM · STBY
Manufacturer specifications 7 parameters
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| Parameter | Value | Conditions / notes |
|---|---|---|
| HIGH LOW HIGH HIGH | OUT1 HIGH; OUT2 LOW | One drive polarity |
| LOW HIGH HIGH HIGH | OUT1 LOW; OUT2 HIGH | Opposite drive polarity |
| Opposite inputs; PWM LOW; STBY HIGH | Both outputs LOW | Short brake during the PWM off interval |
| HIGH HIGH; PWM either; STBY HIGH | Both outputs LOW | Short brake |
| LOW LOW HIGH HIGH | Both outputs high impedance | Stop / coast |
| Any inputs; STBY LOW | Both outputs high impedance | Standby |
| Other combinations | Use the documented control states | Do not assign behavior from a different driver truth table |
No specifications match. Try a parameter name or a unit.
CW/CCW depends on motor wiring; the electrical polarity is the useful invariant.
Losses and thermal limits
Do not treat a peak-current rating as continuous current
Manufacturer specifications 9 parameters
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| Parameter | Value | Conditions / notes |
|---|---|---|
| Drive-path drop at 1 A | 0.5 V typical; 0.7 V maximum | VCC=VM=5 V, total upper + lower switches |
| Drive-path drop at 0.3 A | 0.15 V typical; 0.21 V maximum | VCC=VM=5 V |
| One-channel estimate at 1 A | 0.5 W typical conduction | Before switching losses and temperature rise |
| Two-channel estimate at 0.3 A each | 0.09 W typical conduction | 2×0.3 A×0.15 V; illustrative calculation |
| Absolute pulsed current | 2 A, 20 ms, duty ≤20% | Specified continuous-pulse condition |
| Absolute single pulse | 3.2 A, 10 ms | Not a continuous operating value |
| Dissipation at 25°C | 0.78 / 0.89 / 1.36 W | IC only / specified 50×50 mm PCB / specified 76.2×114.3 mm PCB |
| Thermal shutdown / hysteresis | 175°C / 20°C | Design targets, not guaranteed operating temperatures |
| Low-voltage detect / recovery | 1.9 V / 2.2 V | Design-target values |
No specifications match. Try a parameter name or a unit.
Choose motor stall current and protection so normal operation remains within electrical and thermal limits.
Two-motor example
5 V motor supply and 3.3 V controller
Manufacturer specifications 9 parameters
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| Parameter | Value | Conditions / notes |
|---|---|---|
| Motor A | AO1 pins 1+2; AO2 pins 5+6 | Join each duplicated pair before the motor |
| Motor B | BO1 pins 11+12; BO2 pins 7+8 | Both terminals are driven |
| Motor rail | VM1=24, VM2=13, VM3=14 | Connect all three to 5 V |
| Logic rail | VCC=20 | Connect 3.3 V; controller uses the same level |
| Supply bypass | 10 µF + 100 nF on each rail | Place close to the IC and keep loop area small |
| Ground | PGND1=3+4, PGND2=9+10, GND=18 | Common return with sensible current routing |
| Channel A controls | AIN1=21, AIN2=22, PWMA=23 | Defined controller outputs |
| Channel B controls | BIN1=17, BIN2=16, PWMB=15 | Defined controller outputs |
| Global standby | STBY=19 | Keep LOW until controller initialization is complete |
No specifications match. Try a parameter name or a unit.
Duplicate output pins are physical contacts of the same node, not independently controlled outputs.
SSOP physical package
Bare IC, not a breakout-board header
Manufacturer specifications 7 parameters
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| Parameter | Value | Conditions / notes |
|---|---|---|
| Package name | SSOP24-P-300-0.65A | Surface mount; 24 gull-wing leads |
| Molded body | 5.6×7.8 mm nominal | Package length may reach 8.3 mm overall |
| Lead pitch / span | 0.65 mm / 7.6 mm nominal | Pin 1 marked by the top-view dot |
| Height | 1.6 mm maximum | Follow seating-plane and assembly tolerances |
| Original copper lands | 1.50×0.40 mm | 7.00 mm row centers; check assembly process |
| Exposed pad | None in this package | Do not add a fictitious center contact |
| Footprint download | KiCad .kicad_mod | Original authored footprint with all 24 pad numbers |
No specifications match. Try a parameter name or a unit.
Mechanical reference: Toshiba package drawing; the download is an original land-pattern interpretation.
Connections by function
Select a pin for its function, connection guidance and electrical notes.