Refrigerator Block Diagram

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Refrigerator

AC/DC DC/DC REG Voltage Detector1 Voltage Detector2 Sensor FAN Op-Amp.1 Op-Amp.2 H-Bridge / Stepping Motor Driver H-Bridge1 H-Bridge2 Transistor Array / Low Side SW Power Amp PFC

(AC/DC) Power Supply Block

products Features
NJW4790 Quasi-Resonant RCC Controller IC for AC-DC

(DC/DC) Power Supply Block

products Features
NJM2392 PWM DC/DC Converter IC
NJW1616 600mA, 500kHz, Step-Down Switching Regulator in SOT-23
NJW4171 2.4MHz, 2.5A MOSFET Switching Regulator IC for Buck Converter
NJW4177 Internal 2A MOSFET Switching Regulator IC for Synchronous Buck Converter
R1245 1.2A 30V Input PWM Step-down DC/DC Converter
R1242 3A 30V Input PWM Step-down DC/DC Converter with Synchronous Rectifier Ext. Low-side Tr.
R1243 2A 30V Input PWM Step-down DC/DC Converter
R1271 30 V, 1 A Synchronous PWM Step-down DC/DC Converter

(LDO) Power Supply Block

products Features
NJM11100 Adjustable Low Dropout Regulator with Reverse Current Protection
NJM2830 Low Dropout Voltage Regulator
NJM78 Series 3-Terminal Positive Voltage Regulator
R1524 Low Supply Current 36V Input 200mA Voltage Regulator
R1517 36V Input 500mA Low Supply Current Voltage Regulator
R1518 36V Input 1A Low Supply Current Voltage Regulator

(Voltage Detector) Power Supply Block

products Features
NJU7700 Voltage Detector
NJU7701 Voltage Detector
NJU7704 Voltage Detector
NJU7705 Voltage Detector
NJU7706 Voltage Detector
NJU7707 Voltage Detector
NJU7295 System Reset IC with Delay Circuit
NJU7296 System Reset IC with Delay Circuit
R3114 0.8% Accuracy 0.5V Operating Voltage Detector
R3116 0.8% Accuracy 0.5V Operating Voltage Detector with Delay Function
R5106 Watchdog Timer Equipped with Inhibit Pin with VD
R5107 Watchdog Timer Equipped with Manual Reset with VD
R5108 Watchdog Timer Equipped with SENSE Pin with VD
R5109 Watchdog Timer Equipped with 2-Clock Monitoring with VD
R3150 36V Input Voltage Detector with Detect and Release Delay Function or SENSE pin

(Ambient Light Sensor)

products Features
NJL7502L Ambient Light Sensor
NJL7502R Ambient Light Sensor

(FAN Motor Driver) Motor IC

products Features
NJW4320 24V Single Phase Brushless DC Motor Driver
NJW4321 25V Single Phase Brushless DC Motor Driver

(Op-Amp.)

products Features
NJU77552 1.7MHz, 50µA/ch, Excellent EMI Immunity, Rail-to-Rail Input/Output, Operational Amplifier
NJU7077 Precision, Low Noise, Rail-to-Rail Output, Excellent EMI Immunity, CMOS Operational Amplifiers
NJU7047 9V/µs High-Speed, Rail-to-Rail I/O CMOS Operational Amplifier
NJM3472 High Speed Single Supply Operational Amplifier

(H-Bridge / Stepping Motor Driver)

products Features
NJW4810A Dual Half Bridge Driver
NJW4382 Dual DMOS Full Bridge Stepper Motor Driver
NJW4384 Dual DMOS Full Bridge Stepper Motor Driver
NJU7386 Low Voltage Operation H-Bridge Driver

(Transistor Array / Low Side SW)

products Features
NJW4820 Single Low Side Switch
NJW4822 1-Channel Low Side Switch
NJW4828-B Parallel Input 8-channel Sink Driver

(Power Amp)

products Features
NJU7089 High-Power & Low-Voltage Audio Power Amplifier
NJU8759 Analog Signal Input Monaural Filter Less 3.0W Class-D Amplifier

(PFC)

products Features
R1700 650 V Variable Output Current/Voltage ZVS PFC/LED Driver Controller

(SiC-SBD)

products Features
NJDCD010A065A 650V/10A Silicon Carbide Schottky Barrier Diode