Garage door system

Overview

Secure wireless connectivity, noise-free operation and communication with safety sensors are key features for reliable and robust functions of garage door systems. Our reference designs and integrated circuits help you address complex challenges to quickly differentiate your design from the competition.

Design requirements

Garage door systems often require:

Highly-efficient power from AC input to the point of load.

Stable battery operation across temperature range, especially negative temperature.

Secure wireless access control.

Robust ESD protection for wired interfaces.

Non-isolated DC/DC power supply

Multiple voltage rails are generated from the input power source to support all the devices used in the system. Buck converters may be used to step down the input voltage. Linear regulators (LDOs) are a good option for simple designs. LDOs also enable added functionalities including EMI filtering.

Products

Buck converters (integrated switch)

LM5012—6-V to 100-V input, 2.5-A non-synchronous buck DC/DC converter with ultra-low IQ

LMR36520—SIMPLE SWITCHER® 4.2-V to 65-V, 2-A synchronous step-down converter with 26-uA IQ

LMR54406—SIMPLE SWITCHER® power converter with 4-V to 36-V input, 0.6-A, synchronous buck and 80-µA IQ

Linear & low-dropout (LDO) regulators

TLV758P—500-mA, low-IQ, high-accuracy, adjustable ultra-low-dropout voltage regulator with enable

TLV705—200-mA, high-PSRR, low-IQ, low-dropout voltage regulator with low-noise & enable

TLV767—Adjustable- and fixed-output, 1-A, 16-V, positive-voltage low-dropout (LDO) linear regulator

Energy storage

A backup battery may be included in the design to provide protection against an unexpected power loss. A battery management device can handle charging in systems that use a rechargeable battery. A battery gauge device can monitor the battery voltage.

Products

Ideal diode/ORing controllers

LM74700D-Q1—Automotive, 3.2-V to 70-V, 80-µA reverse battery protection ideal diode controller

Isolated AC/DC power supply

Isolated AC/DC power supply provides 14-V for garage door unit main power from residential 110/230 VAC line.

Products

Shunt voltage references

TLVH431A—1% low-voltage wide-operating current adjustable precision shunt regulator

Audio interface

Audio interface alarms the user when the garage door is operating or when the safety beams are triggered.

Products

General-purpose op amps

TLV8544—Quad, 3.6-V, 8-kHz, ultra low quiescent current (500-nA), RRIO operational amplifier

LM2904B—Dual, 36-V, 1.2-MHz operational amplifier with -40°C to 125°C operation

TLV9052—Dual, 5.5-V, 5-MHz, 15-V/μs slew rate, RRIO operational amplifier for cost-optimized applications

TLV9004—Quad, 5.5-V, 1-MHz, RRIO operational amplifier for cost-optimized applications

Visual indicators

Visual indicators provide feedback to the user during the setup time.

Products

Automotive LED drivers

TPS92530-Q1—Automotive 3-channel, constant-current and constant-voltage synchronous buck LED driver

TPS92642-Q1—Automotive synchronous buck infrared LED driver

LP8868Y-Q1—Automotive, 65-V 4-A buck-boost LED driver with flexible dimming option and spread spectrum

RGB LED drivers

LP5810—4-channel RGBW LED driver with I2C and auto animation control

LP5812—4 x 3 matrix RGB LED driver with I2C and auto animation control

LP5811—Synchronous boost 4-channel RGBW LED driver with I2C and auto animation control

Panel signal input/output protection

ESD protection devices can be used to protect panel buttons

Products

ESD protection diodes

TPD4E001—Quad 1.5-pF, 5.5-V, ±8-kV ESD protection diode with 1-nA max leakage & VCC pin for USB 2.0

TPD6F003—6 channel 5.5-V, ±12kV ESD protection & EMI Filter with 200-MHz -3-dB

TPD1E10B06—12-pF, ±5.5V, ±30-kV ESD protection diode in 0402 and SOD-523 package

Self-diagnostics/monitoring

On-board sensors and other devices are used for self-diagnostics and system monitoring. A core temperature monitor is used to track the temperature of the PCB near the main processor. A voltage supervisor can keep the system in reset until the system voltage reaches valid levels.

Products

Supervisor & reset ICs

TLV803—3-pin voltage supervisor (reset IC) with active-low & open-drain reset

Shunt voltage references

TLVH431A—1% low-voltage wide-operating current adjustable precision shunt regulator

General-purpose op amps

TLV8544—Quad, 3.6-V, 8-kHz, ultra low quiescent current (500-nA), RRIO operational amplifier

LM2904B—Dual, 36-V, 1.2-MHz operational amplifier with -40°C to 125°C operation

TLV9052—Dual, 5.5-V, 5-MHz, 15-V/μs slew rate, RRIO operational amplifier for cost-optimized applications

TLV9004—Quad, 5.5-V, 1-MHz, RRIO operational amplifier for cost-optimized applications

Digital processing

A microcontroller monitors all the sensor outputs and triggers alarms. The design can use a dedicated microcontroller or a single system-on-chip solution which combines the microcontroller and radio on a single device.

Products

Low-power 2.4-GHz products

CC2340R5—SimpleLink™ 32-bit Arm® Cortex®-M0+ Bluetooth® Low Energy wireless MCU with 512-kB flash

CC2674R10—SimpleLink™ Arm® Cortex®-M33 multiprotocol 2.4-GHz wireless MCU with 1-MB flash

CC2651R3—SimpleLink™ 32-bit Arm® Cortex®-M4 single-protocol 2.4-GHz wireless MCU with 352-kB flash

CC2642R—SimpleLink™ 32-bit Arm Cortex-M4F Bluetooth® Low Energy wireless MCU with 352kB Flash

CC2640—SimpleLink™ 32-bit Arm Cortex-M3 Bluetooth® Low Energy wireless MCU with 128kB Flash

Wi-Fi products

CC3301—SimpleLink™ Wi-Fi 6 and Bluetooth® Low Energy companion IC

Sub-1 GHz wireless MCUs

CC1354R10—SimpleLink™ Arm® Cortex®-M33 multiband wireless MCU with 1-MB flash and up to 296-KB SRAM

Sub-1 GHz transceivers

CC1101—Low-power Sub-1 GHz wireless transceiver

MSP430 microcontrollers

MSP430FR2632—Capacitive touch MCU with 8 touch IO (16 sensors), 8KB FRAM, 2KB SRAM, 15 IO, 10-bit ADC

MSP430FR5969—16 MHz MCU with 64KB FRAM, 2KB SRAM, AES, 12-bit ADC, comparator, DMA, UART/SPI/I2C, timer

Shunt voltage references

TLVH431A—1% low-voltage wide-operating current adjustable precision shunt regulator

Wired interface signal input/output protection

ESD protection devices can be used to protect wired interfaces.

Products

ESD protection diodes

TPD4E001—Quad 1.5-pF, 5.5-V, ±8-kV ESD protection diode with 1-nA max leakage & VCC pin for USB 2.0

TPD6F003—6 channel 5.5-V, ±12kV ESD protection & EMI Filter with 200-MHz -3-dB

TPD1E10B06—12-pF, ±5.5V, ±30-kV ESD protection diode in 0402 and SOD-523 package

Wired interface

Wired interface is used to communicate between the garage door unit and wired keypad, as well as safety sensors.

Products

I2C general-purpose I/Os (GPIOs)

TCA9539—16-bit 1.65- to 5.5-V I2C/SMBus I/O expander with interrupt, reset & config registers

Light control

Light control is used to turn off and on the garage bulbs based on the position of the garage door.

Products

Low-side drivers

UCC27517—4-A/4-A single-channel gate driver with 5-V UVLO and 13-ns prop delay in SOT-23 package

N-channel MOSFETs

CSD15571Q2—20-V, N channel NexFET™ power MOSFET, single SON 2 mm x 2 mm, 19.2 mOhm

Motor control

Motor control is used to control the direction and speed of the motor controlling the garage door.

Products

Half-bridge drivers

UCC27712—1.8-A/2.8-A, 620V half bridge driver with interlock

Low-side drivers

UCC27517—4-A/4-A single-channel gate driver with 5-V UVLO and 13-ns prop delay in SOT-23 package

N-channel MOSFETs

CSD15571Q2—20-V, N channel NexFET™ power MOSFET, single SON 2 mm x 2 mm, 19.2 mOhm

Wireless interface

Radios can be used to control and provide the status of the garage door.

Products

Low-power 2.4-GHz products

CC2340R5—SimpleLink™ 32-bit Arm® Cortex®-M0+ Bluetooth® Low Energy wireless MCU with 512-kB flash

CC2674R10—SimpleLink™ Arm® Cortex®-M33 multiprotocol 2.4-GHz wireless MCU with 1-MB flash

CC2651R3—SimpleLink™ 32-bit Arm® Cortex®-M4 single-protocol 2.4-GHz wireless MCU with 352-kB flash

Wi-Fi products

CC3301—SimpleLink™ Wi-Fi 6 and Bluetooth® Low Energy companion IC

Sub-1 GHz wireless MCUs

CC1354R10—SimpleLink™ Arm® Cortex®-M33 multiband wireless MCU with 1-MB flash and up to 296-KB SRAM

Other wireless products

CC2500—Low Cost, Low-Power 2.4 GHz RF Transceiver Designed for Low-Power Wireless Apps in the 2.4 GHz ISM B

CC2530-RF4CE—Zigbee, IEEE 802.15.4 and RF4CE wireless MCU with 256kB Flash and 8kB RAM

CC2592—2.4 GHz range extender with up to +22 dBm output power

Sub-1 GHz transceivers

CC1101—Low-power Sub-1 GHz wireless transceiver