Intrusion control panel

Overview

Description

Related applications

Our integrated circuits and reference designs allow you to create a next-generation intrusion control panel system with wired and wireless connectivity, advanced sensing, new human machine interface (HMI) technologies and security features.

Design requirements

Intrusion control panel designs often require:

Multiple communication protocols on wired (Ethernet, RS-485) and wireless interfaces (Wi-Fi, BLE, Sub-1GHz).

Efficient multi-stage power tree with battery charging and gauging to enable at least 24-hour operation on battery backup.

Ability to reduce false alarms using multiple sensor input.

Two-way audio communication and control with cloud intelligence.

Non-isolated DC/DC power supply

Multiple voltage rails are generated from the output of the AC/DC power stage or from a backup battery. Buck converters with high efficiency at light load can be a choice for designs prioritizing maximum battery life. Boost converters provide higher voltage rails to operate audio buzzers. Low-noise, high-PSRR linear regulators may be used to ensure EMI specifications are met and improve wireless communication. A low-cost, low-efficiency linear regulator can be used when cost is a high priority and efficiency is a low priority.

Analog switches & muxes

SN74LVC1G3157—5-V, 2:1 (SPDT), 1-channel general-purpose analog switch

TMUX4051—±12-V, 8:1, one-channel multiplexer with 1.8-V compatible logic

TS5A3159A—1-Ω, 5-V, 2:1 (SPDT), 1-channel general-purpose analog switch with powered-off protection

Energy storage

A backup battery is typically included in the design to provide protection against unexpected power loss. A battery gas gauge device can monitor the battery voltage. An ORing controller can be used to combine the battery output voltage and output voltage from the wired power source. A boost converter may be needed to raise the battery output voltage.

Products

Load switches

TPS22975—5.7-V, 6-A, 16-mΩ load switch with adj. rise time, optional output discharge, and thermal shutdown

TPS27081A—8-V, 3-A, 44-mΩ load switch with adj. rise time

Boost converters (integrated switch)

TPS61376—25-V, 4.5-A, boost converter with 2.5% accuracy input average current limit & true disconnection

TPS55340—5-A, 40-V, wide VIN boost, flyback, & SEPIC converter

LM2703—Micropower Step-Up DC/DC Converter with 350mA Peak Current Limit

TPS61020—Adjustable, 1.5-A Switch, 96% Efficient Boost Converter with Down-Mode, QFN-10

TPS61220—0.7-VIN, adjustable output voltage boost converter with 5.5-μA quiescent current

Battery fuel gauges

BQ27427—Single-cell battery fuel gauge with pre-programmed chemistry and integrated sense resistor

Battery charger ICs

BQ25185—1-cell, 1-A stand-alone linear battery charger with power path and solar input support

BQ25606—Stand Alone 1cell 3A Fast charger with High input voltage and Power Path

Isolated AC/DC power supply

Intrusion control panels can be powered from an existing AC power source. An offline converter can be used to create a DC voltage from the AC power source.

Products

Flyback controllers

UCC28750—Current-mode flyback controller with secondary-side regulation (SSR) for offline applications

UCC28740—Constant-Voltage, Constant-Current (CVCC) Flyback controller with Secondary Side Regulation (SSR)

LM5021—30V, 1MHZ current mode PWM controller

UCC28600—8-pin quasi resonant Flyback green mode controller

UCC28610—12-65W green-mode Flyback power supply controller

Shunt voltage references

ATL431LI—Low-IQ programmable shunt regulator offered in an ultra-small DQN package

TL4050A—Fixed voltage, 0.1%, 50-ppm/°C precision micropower shunt voltage reference

LM431—2%, 1%, or 0.5% accuracy, adjustable precision Zener shunt regulator

TLV431—1.5% accuracy, low-voltage, adjustable precision shunt regulator

User interface signal input/output protection

ESD protection may be required for user buttons and other interfaces.

Products

ESD protection diodes

ESDS552—12V two-channel bidirectional ESD protection diode

ESD122—Dual 0.2-pF, ±3.6-V, ±17-kV ESD protection diode for USB Type-C and HDMI 2.0

TPD1E0B04—0.13-pF, ±3.6-V, ±8-kV ESD protection diode in 0402 & 0201 packages for USB-C & Antenna

TPD6E001—6 channel 1.5-pF, 5.5-V, ±8-kV ESD protection diode with 1-nA max leakage & VCC pin for USB 2.0

Input user interface

The user interface allows the user to control the intrusion control panel. Traditional designs may use an I/O expander device to interface the system microcontroller (MCU) to a mechanical keypad. A touchscreen LCD/TFT display may be used in lieu of a mechanical interface. These designs may use a backlight LED driver and an MCU with integrated touchscreen and LCD controller. Haptics feedback may be included for a more robust user experience.

Products

I2C general-purpose I/Os (GPIOs)

TCA9535—16-bit 1.65- to 5.5-V I2C/SMBus I/O expander with interrupt & config registers

TCA6424A—24-bit translating 1.65- to 5.5-V I2C/SMBus I/O expander with interrupt, reset & config registers

TCAL6416—16-bit translating I²C-bus/SMBus I/O expander with interrupt, reset, and agile I/O configuration

MSP430 microcontrollers

MSP430F1612—8 MHz MCU with 55KB Flash, 5KB SRAM, 12-bit ADC, Dual 12-bit DAC, comparator, DMA, I2C/SPI/UART

MSP430F5528—25 MHz MCU with 128KB Flash, 8KB SRAM, 12-bit ADC, comparator, DMA, UART/SPI/I2C, USB, HW multiplier

MSP430G2452—16 MHz MCU with 8KB Flash, 256B SRAM, 10-bit ADC, comparator, timer, SPI/I2C

MSP430G2533—16 MHz MCU with 16KB Flash, 512B SRAM, 10-bit ADC, UART/SPI/I2C, timer

Touchscreen controllers

TSC2013-Q1—1.2V to 3.6V, 12-Bit, Nanopower, 4-Wire Touch Screen Controller

Inductive sensor AFEs

LDC1314—4-Ch, 12-bit, general purpose inductance to digital converter

LDC1614—4-Ch, 28-bit, high-resolution Inductance to digital converter

LDC1612—2-Ch, 28-bit, high-resolution Inductance to digital converter

LDC1312—2-Ch, 12-bit, general purpose inductance to digital converter

Output user interface

An intrusion control panel may include an LCD display and status LEDs to communicate information to the user. An LED driver is often used to drive status LEDs. A capacitive or resistive touchscreen may be used in lieu of a more traditional LCD display. For these designs, an ambient light sensor can be used to control the amount of backlight.

Products

LCD & OLED display power & drivers

TPS65132—Split-Rail, Single Inductor Dual Output Converter with Positive and Negative Outputs

TPS65105—4-CH LCD Bias w/ Fully Int. Pos. Charge Pump, 3.3V LDO Contr., 0.96A Min. Boost Ilim, Fault & VCOM

RGB LED drivers

LP5012—12-channel I2C constant-current RGB LED driver

Backlight LED drivers

TPS61169—TPS61169 38-V high-current Boost WLED driver

LED display drivers

TLC5928—16 channel constant current LED driver with LED open Detection

Light sensors

OPT3001—Digital ambient light sensor (ALS) with high-precision human-eye response

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. This function can be implemented using an external temperature monitor device. A voltage supervisor can keep the system in reset until the system voltage reaches valid levels.

Products

Digital temperature sensors

TMP116—0.2C digital temperature sensor, 64-bit non-volatile memory

TMP1075—1°C I²C temperature sensor with performance upgrades to industry standard LM75 / TMP75

TMP103—±2°C Digital temperature sensor with I2C/SMBus capable of 1.4V in WCSP

Power stage

The intrusion control panel may include programmable load power outputs to provide power to other security devices. A current sensor device may be used to limit the amount of power delivered on each of these outputs. Relays may also be used to turn power off completely. The programmable load power outputs may also include circuit breakers for short-circuit protection.

Products

Analog current-sense amplifiers

INA180—26V, 350kHz current sense amplifier

eFuses & hot swap controllers

TPS2597—2.7-V–23-V, 7-A, 9.8-mΩ eFuse with accurate current monitor and transient overcurrent blanking

TPS2596—2.7-V to 19-V, 85mΩ, 0.13-2A eFuse with selectable over voltage protection clamp in leaded package

Wired interface signal input/output protection

ESD protection may be required for user buttons and other interfaces.

Products

ESD protection diodes

ESDS552—12V two-channel bidirectional ESD protection diode

ESD122—Dual 0.2-pF, ±3.6-V, ±17-kV ESD protection diode for USB Type-C and HDMI 2.0

TPD1E0B04—0.13-pF, ±3.6-V, ±8-kV ESD protection diode in 0402 & 0201 packages for USB-C & Antenna

TPD6E001—6 channel 1.5-pF, 5.5-V, ±8-kV ESD protection diode with 1-nA max leakage & VCC pin for USB 2.0

TPD4S012—Quad 0.8-pF, 5.5-V, ±10-kV ESD protection diode with 15-V tolerant Vbus for USB Interface<

TPD4E1U06—Quad 0.8-pF, 5.5-V, ±15-kV ESD protection diode in SOT-23 & SC70 packages