Air conditioner indoor unit

Overview

Description

Our integrated circuits and reference designs help you create highly efficient air conditioner indoor unit systems with advanced motor fan control, accurate environmental sensing and secure wireless connectivity features that meet energy label requirements.

Design requirements

Modern air conditioner indoor unit systems require:

Variable speed, high-efficiency brushless direct current (BLDC) motor control.

Highly-efficient power supply with low standby power.

Secure, robust and reliable wireless connectivity.

Non-isolated AC/DC power supply

Cost effective, high efficiency and small form factor AC/DC solutions for power factor correction and bias power supply generation with excellent EMI performance.

Products

Flyback controllers

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

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

UCC28700—Constant-voltage, constant-current PWM with PSR & Programmable cable compensation

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

PWM controllers

UC2844A—30-V, 1A, 500KHz current mode PWM controller with 16V/10V UVLO 50% duty cycle, 40°C to 85°C

UCC28C52—Industrial, 30-V, low-power current-mode PWM controller, 14.5-V/9-V UVLO, 100% duty cycle

Shunt voltage references

TL431LI—Adjustable precision shunt regulator with optimized reference current (pin layout: KRA)

TL431—Adjustable precision shunt regulator

TL432LI—Adjustable precision shunt regulator with optimized reference current (pin layout: RKA)

N-channel MOSFETs

CSD17318Q2—30-V, N channel NexFET™ power MOSFET, single SON 2 mm x 2 mm, 16.9 mOhm

SR & load share controllers

UCC24650—200-V wake-up monitor for fast transient primary-side regulation

Isolated AC/DC power supply

Off-line switch mode power supply solutions with multiple output rails (isolated and non-isolated) optimized for cost, efficiency, space and low EMI.

Products

Flyback controllers

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

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

UCC28700—Constant-voltage, constant-current PWM with PSR & Programmable cable compensation

PWM controllers

UC2844A—30-V, 1A, 500KHz current mode PWM controller with 16V/10V UVLO 50% duty cycle, 40°C to 85°C

UCC28C52—Industrial, 30-V, low-power current-mode PWM controller, 14.5-V/9-V UVLO, 100% duty cycle

Shunt voltage references

TL431LI—Adjustable precision shunt regulator with optimized reference current (pin layout: KRA)

TL431—Adjustable precision shunt regulator

TL432LI—Adjustable precision shunt regulator with optimized reference current (pin layout: RKA)

N-channel MOSFETs

CSD17318Q2—30-V, N channel NexFET™ power MOSFET, single SON 2 mm x 2 mm, 16.9 mOhm

SR & load share controllers

UCC24650—200-V wake-up monitor for fast transient primary-side regulation

Power protection & gating

Highly integrated, small size and fully protected solutions provide full safety for different low power voltage rails (eFuse, load switch, etc.). Power gating solutions for lowest stand-by power.

Products

eFuses & hot swap controllers

TPS1641—2.7-V to 40-V 152-mΩ 1.8-A eFuse with output power limiting

TPS25921L—4.5-V to 18-V, 90mΩ, 0.4-1.6A eFuse with latch off fault response

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

Non-isolated DC/DC power supply

Cost effective, high efficiency and small form factor DC/DC solutions with excellent EMI performance.

Products

Buck converters (integrated switch)

TPS628502-Q1—2.7-V to 6-V, 2-A automotive step-down converter in SOT583 package

TPS62932—3.8-V to 30-V input, 2-A, 200-kHz to 2.2-MHz, low-IQ synchronous buck converter in SOT-583 package

TPS62903—3-V to 17-V, 3-A high-efficiency low-IQ buck converter in 1.5-mm × 2-mm QFN package

TPS65270—2 Buck Converter with 4.5V to 16V Input Voltage, 2A/3A Output Current

Linear & low-dropout (LDO) regulators

TPS7B86-Q1—Automotive 500-mA, 40-V, ultra-low-IQ, low-dropout (LDO) linear regulator with power good

TLV709—150-mA 30-V low-dropout (LDO) linear regulator with 3.2-μA supply current

TLV740P—300-mA low-dropout (LDO) regulator with foldback current limit

TPS7A53-Q1—Automotive, 3-A, low-VIN (1.1 V) low-noise high-accuracy ultra-low-dropout (LDO) voltage regulator

Boost converters (integrated switch)

LM5157—6A/4A, 50-V, 2.2-MHz wide VIN boost, flyback, & SEPIC converter with dual random spread spectrum

TLV61046A—28-V Output Voltage Boost Converter with Power Diode and Isolation Switch

TPS61097A-33—0.9Vin, 3.3Vout Boost Converter with Bypass Switch - 5nA Shutdown Current

TPS61071—Adjustable, 600-mA switch, 1200-kHz boost converter in ThinSOT-23 with forced PWM mode

Multi-channel ICs (PMICs)

LP87702-Q1—Dual buck converter and 5-V boost with diagnostic functions

LP87524J-Q1—Multiphase 4MHz, 4A/1.0V + 2.5A/1.8V + 1.5A/3.3V + 1.5A/1.2V buck converters for AWR and IWR MMICs

TPS65023B—6-channel Power Management IC (PMIC) with 3DC/DCs, 3 LDOs, I2C Interface and DVS

TPS65930—Integrated Power Management IC (PMIC) with 3 DC/DC's, 4 LDO's, Audio Codec, USB HS Transceiver

N-channel MOSFETs

CSD17318Q2—30-V, N channel NexFET™ power MOSFET, single SON 2 mm x 2 mm, 16.9 mOhm

Sensors

Innovative solutions for a wide range of sensor types applicable to air-conditioners. Optimized for cost, performance and reliability.

Products

Industrial mmWave radar sensors

IWRL6432—Single-chip low-power 57-GHz to 64-GHz industrial mmWave radar sensor

IWR6843AOP—Single-chip 60-GHz to 64-GHz intelligent mmWave sensor with integrated antenna on package (AoP)

IWR6843—Single-chip 60-GHz to 64-GHz intelligent mmWave sensor integrating processing capability

Humidity sensors

HDC3021—0.5% RH digital humidity sensor with removable tape cover

HDC3022—0.5% RH digital humidity sensor with permanent IP67 filter

Digital temperature sensors

TMP112-Q1—Automotive ±0.5°C 1.4V to 3.6V digital temperature sensor with I2C/SMBus in 2.56mm2 package

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

LMT01—0.5°C Accurate 2-pin Temperature Sensor with a Pulse Train Interface

Hall-effect latches & switches

DRV5013—High voltage (up to 38-V), high bandwidth (30-kHz) Hall effect latch

DRV5023—High voltage (up to 38V), high bandwidth (up to 30 kHz) unipolar switch

Analog temperature sensors

LM20—±1.5°C Analog Output Temperature Sensor

LMT87—±2°C 2.7V to 5.5V analog output temperature sensor with -13.6 mV/°C gain

Temperature switches

TMP302—Pin-Selectable Trip Point 1.4V-Capable Family of Temperature Switches

Signal conditioners

LMP93601—Low-noise, High gain, 3-Channel AFE for Thermopile Sensors

Linear Hall-effect sensors

DRV5053—High voltage (up to 38V), linear hall effect sensor

Light sensors

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

Inductive sensor AFEs

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

Proximity sensors

OPT3101—ToF-based long-range proximity and distance sensor analog front end (AFE)

Analog front end

Signal conditioning solutions for a wide range of sensor types. Analog and digital output options. Cost effective or high end.

Products

General-purpose op amps

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

TLV9352—Dual, 40-V, 3.5-MHz, low-power operational amplifier

TLV9062—Dual, 5.5-V, 10-MHz operational amplifier

High-speed op amps (GBW ≥ 50 MHz)

TLV365—50-MHz single-supply operational amplifier with rail-to-rail input and output

Comparators

LM2903B—Dual industrial grade standard comparator

LM393B—Dual commercial grade standard comparator

TLV7022—Micropower small size comparator (dual, open-drain output)

LM2903-Q1—AEC-Q100, Grade 0 and 1, Automotive High Voltage Dual Differential Comparator

Difference amplifiers

INA132—Low Power, Single-Supply Difference Amplifier

Precision op amps (Vos<1mV)

LMP7716—Dual precision, 17-MHz, low-noise, low bias current, CMOS input amplifier

OPA376—Precision (0.025mV), low noise (7.5nV/rtHz), low quiescent current (760uA) op amp

OPA2320—Dual, precision, zero-crossover, 20-MHz, 0.9-pA Ib, RRIO, CMOS operational amplifier

OPA320—Precision, zero-crossover, 20-MHz, 0.9-pA Ib, RRIO, CMOS operational amplifier

Precision ADCs

ADS114S08—16-bit, 4-kSPS, 12-ch delta-sigma ADC with PGA and voltage reference for sensor measurement

ADS8320—16-Bit, High-Speed, 2.7V-to-5V Micropower Sampling Analog-to-Digital Converter (ADC)

Precision DACs (≤10 MSPS)

DAC8760—16-Bit Single-Channel Programmable Current/Voltage Output DAC for 4-20mA current loop applications

Digital potentiometers (digipots)

TPL0102-100—256-tap dual-channel digital potentiometer with I2C interface and nonvolatile memory

Analog switches & muxes

TS3A24159—0.3-Ω on-state resistance, 3.3-V, 2:1 (SPDT), 2-channel analog switch with 1.8-V input logic

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

TMUX4052—+/-12-V, 4:1, 2-channel multiplexer with 1.8-V logic compatible logic

Series voltage references

REF2925—2.5-V, 100-ppm/°C, 50-µA in 3-pin SOT-23 package series (bandgap) voltage reference

REF70—Ultra-high-precision voltage reference with low noise and low drift

REF2025—8-ppm/°C drift, low-power, dual-output Vref & Vref/2 voltage reference

Signal conditioners

LMP93601—Low-noise, High gain, 3-Channel AFE for Thermopile Sensors

Inductive sensor AFEs

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

Digital processing

MCUs have advanced capabilities in secure wired and wireless connectivity, power and standby management and heating and motor control, as well as high-performance processors with multimedia options from simple displays to high-performance HMIs.

Products

Arm Cortex-M0+ MCUs

MSPM0G1506—80MHz Arm M0+ MCU, 64KB Flash, 32KB SRAM, 2×12bit 4Msps ADC, DAC, 3×COMP, 3×op-amp, MATHACL

MSPM0L1306—32-MHz Arm® Cortex®-M0+ MCU with 64-KB flash, 4-KB SRAM, 12-bit ADC, comparator, OPA

MSPM0G3507—80MHz Arm M0+ MCU, 128KB Flash, 32KB SRAM, 2×12bit 4Msps ADC, DAC, 3×COMP, 3×op-amp, CAN-FD, MATHACL

C2000 real-time microcontrollers

TMS320F280025—C2000™ 32-bit MCU with 100-MHz, FPU, TMU, 128-kb flash

TMS320F2800135—C2000™ 32-bit MCU with 120 MHz, 128-KB flash, FPU and TMU

TMS320F2800132—C2000™ 32-bit MCU with 100 MHz, 64-KB flash, FPU, TMU, six PWM and zero CAN

Arm-based processors

AM3354—Sitara processor: Arm Cortex-A8, 3D graphics, CAN

DM3730—Digital Media Processor

AM3352—Sitara processor: Arm Cortex-A8, 1Gb Ethernet, display, CAN

AM3358—Sitara processor: Arm Cortex-A8, 3D graphics, PRU-ICSS, CAN

Arm Cortex-M4 MCUs

TM4C123GE6PZ—32-bit Arm Cortex-M4F based MCU with 80-MHz, 128-kb Flash, 32-kb RAM, 2x CAN, RTC, USB, 100-pin LQFP

TM4C1294NCPDT—32-bit Arm Cortex-M4F based MCU with 120-MHZ, 1-MB flash, 256-KB RAM, USB, ENET MAC+PHY

MSP430 microcontrollers

MSP430FR4133—16 MHz MCU with 16KB FRAM, 2KB SRAM, 10-bit ADC, LCD, UART/SPI/I2C, IR logic, timer

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

MSP430F5529—25 MHz MCU with 128KB Flash, 8KB SRAM, 12-bit ADC, comparator, DMA, UART/SPI/I2C, USB, HW multiplier

MSP430G2453—16 MHz MCU with 8KB Flash, 512B SRAM, 10-bit ADC, comparator, UART/SPI/I2C, timer

Output user interface

Appealing, yet cost effective HMI solutions from indication LEDs to high-end touch screens and displays.

Products

Speaker amps

TAS2563—6.1-W, digital input, smart amp & integrated speaker protection, advanced EQ & 11-V Class-H boost

LM4890—1 Watt Audio Power Amplifier

TPA2011D1—3.2-W, mono, analog input Class-D audio amplifier with auto-recovering short-circuit protection

RGB LED drivers

LP5024—24-channel I2C constant-current RGB LED driver

TLC59283—16 channel constant current LED driver with pre-charge FET

TLC59116—16-bit Fast-Mode Plus (FM+) I2C-Bus constant-current LED sink driver

LP5813—Synchronous boost 4 x 3 matrix RGB LED driver with I2C and auto animation control

Backlight LED drivers

TPS61165—High brightness white LED driver in 2mm x 2mm QFN Package

LM3630A—LM3630A high-efficiency dual-String white LED driver

LED display drivers

TLC5941—16 channel LED driver with dot correction and grayscale PWM control

LCD & OLED display power & drivers

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

≤ 0.47-in array pico products

DLPC2607—DLP® display controller for DLP2000 (0.2 nHD) DMD

DLP2000—0.20-inch nHD DLP® digital micromirror device (DMD)

Wired interface

Robust connectivity solutions (isolated and non-isolated, with and without protection) in support of common standards such as UART, PLC, RS485, etc. or proprietary protocols

Products

RS-485 & RS-422 transceivers

SN65HVD888—Bus-Polarity Correcting RS-485 Transceiver with IEC-ESD Protection

THVD1500—5-V RS-485 transceiver up to 500 kbps with ±8-kV IEC ESD protection

THVD8010—RS-485 transceiver with OOK modulation for power line communication

I2C & I3C level shifters, buffers & hubs

PCA9306—2-bit bidirectional 400-kHz I2C/SMBus voltage level translator

RS-232 transceivers

MAX3232E—3- to 5.5-V dual channel 250kbps RS-232 line driver/receiver with +/-15-kV IEC-ESD protection

TRS3232E—3- to 5.5-V dual channel 250kbps RS-232 line driver/receiver with +/-15-kV IEC-ESD protection

ESD protection diodes

TPD2E001—Dual 1.5-pF, 5.5-V, ±8-kV ESD protection diode with 1-nA max leakage & VCC pin for USB 2.0

TPD3E001—3 channel 1.5-pF, 5.5-V, ±8kV ESD protection diode with 1-nA max leakage & VCC pin for USB 2.0

TPD4E004—Quad 1.6-pF, 5.5-V, ±8-kV ESD protection diode with VCC pin for High Speed Interfaces

I2C general-purpose I/Os (GPIOs)

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

TVS diodes

TVS1400—14V flat-clamp surge protection device

Wireless interface

Robust, power efficient and highly secure solutions enabling easy addition of Wi-Fi connectivity.

Products

Other wireless products

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

CC2620—SimpleLink™ 32-bit Arm Cortex-M3 Zigbee® RF4CE wireless MCU with 128kB Flash

Low-power 2.4-GHz products

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

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

CC2630—SimpleLink™ 32-bit Arm Cortex-M3 Zigbee and 6LoWPAN wireless MCU with 128kB Flash

CC2650MODA—SimpleLink™ 32-bit Arm Cortex-M3 multiprotocol 2.4 GHz wireless module with 128kB Flash

Wi-Fi products

CC3200—SimpleLink™ 32-bit Arm Cortex-M4 Wi-Fi® wireless MCU with 2 TLS/SSL and 256kB RAM

CC3200MOD—SimpleLink™ 32-bit Arm Cortex-M4 Wi-Fi® and Internet-of-Things wireless module

WL1837MOD—WiLink™ 8 industrial dual band, 2x2 MIMO Wi-Fi®, Bluetooth® & Bluetooth Smart module