Diodes Inc. — AL1673: Universal Flyback and Buck-Boost Single Stage Dimmable LED Driver


The AL1673 is a high-performance single stage LED driver-converter operating in flyback and buck-boost topologies, targeting dimmable LED lighting applications. It operates in BCM mode which results in good EMI and efficiency. It supports analog and PWM dimming modes. When a 0.3~2.4V DC signal is applied on APWM pin, the device will operate in analog […]

Diodes Inc. — Ultra-Low Dropout 150mA: Supports Wide Input Voltage Range with Fixed Output Voltages


The AP7380 series of ultra-low dropout regulators introduced by Diodes Incorporated operates from a wide 24V input voltage range and offers various fixed output voltage options to address common system requirements. These features, combined with high accuracy and an ultra-low quiescent current, make this device well-suited for use in various USB power, portable equipment, consumer, […]

Diodes – BCR401U/402U: Linear Constant Current Regulators


The BCR401U/402U monolithically integrates a transistor,  diodes and resistors to function as a constant current regulator (CCR) for LED driving. The devices regulate with a preset 10mA/20mA nominal current that can be adjusted with external resistor up to 100mA. It is designed for driving 0.25W LEDs in strings and will reduce current at increasing temperatures […]

Diodes Incorporated – AP3401 and AP3428: 1A DC-DC Buck Converters Achieve High Light-Load Efficiency


The AP3401/AP3428 is a current mode, PWM synchronous buck DC-DC converter, capable of driving a 1A load with high efficiency and excellent line and load regulation. AP3401/AP3428 delivers 1A maximum output current while consuming only 40μA no-load quiescent current. Ultra-low RDS(ON) integrated MOSFETs and 100% duty cycle operation make it an ideal choice for high […]

Diodes Inc. – DGD2103/04: Half Bridge Gate Drivers in SO-8


Drivers The DGD2103/4 is a high-voltage/high-speed gate driver family capable of driving N-channel MOSFETs and IGBTs in a half bridge configuration. High-voltage processing techniques enable the DGD2103/4’s high side to switch to 600V in a bootstrap operation. The DGD2103/4 logic inputs are compatible with standard TTL and CMOS levels (down to 3.3V) to interface easily […]

Diodes – AH1806/08: High Sensitivity Micropower Omnipolar Hall-Effect Switches


The AH1806 and AH1808 are high sensitivity micropower omnipolar hall-effect switch ICs, specifically designed for portable and battery-powered consumer to home appliances and industrial applications. The high sensitivity hall effect switches have been optimized to operate over the supply range of 2.5V to 5.5V and use a micropower sleep function to give an average supply […]

Diodes – AP22850: 10V Single Channel Programmable Load Switch


The AP22850 is an integrated P-channel load switch, featuring adjustable ramp-up and discharge rate that can be set via an external capacitor and resistor respectively. It incorporates a “power good” output to flag when the switch is fully enhanced. The P-channel switch has a typical RDS(ON) of 21mΩ, enabling a current handling capability of up […]

Diodes – APR3415 and APR34309: Secondary-Side Synchronous Rectifiers


The APR3415 and APR34309 are secondary-side synchronous rectifiers, which combine an N-MOSFET and an optimized driver circuit for DCM synchronous rectification (SR) power supplies. Both devices integrate an output voltage detect function for primary side control systems. The N-channel MOSFET has been optimized for low gate charge, low RDS(ON) and fast switching speed with fast […]

Diodes – AH8500/1: Micropower Linear Hall Effect Sensor Family with Enable/Control Pin


The AH850/1/2/3 is a family of low power/micropower linear hall effect sensors with output voltage ratiometric to supply and magnetic field sense range of ±400G. The high performance AH8501 and AH8503 have trimmed sensitivity accuracy of 3% with a null voltage offset

Diodes – AP1688: Universal Input Voltage, High Power Factor and High Efficiency LED Buck Controller


The AP1688 is a high power factor, constant current buck controller for universal input voltage applications. The buck controller operates under Boundary Conduction Mode (BCM) to achieve high efficiency, low electromagnetic interference (EMI) and low total harmonic distortion (THD). Open loop control is adopted for the AP1688, which achieves excellent line and load regulation. AP1688 […]