brief introduction:
INNOVA has introduced a PFM/PWM-based high efficiency step-up DC power conversion chip designed for LED lighting drivers. The chip is a low voltage constant current output DC/DC boost chip that provides 0.5. The constant current output of w integrates synchronous rectifiers and switching tubes, requiring only a few external components. It combines the characteristics of LED lighting and rechargeable battery use, in addition to the functions such as soft start, overvoltage and overcurrent protection, etc., which are necessary for LED driver, it also has low voltage self-locking (UVLO), high and low potential induction automatic output conversion, etc. Features. Ideal for LEDs in single-cell rechargeable batteries and alkaline battery applications.
Original position The low-voltage self-locking function of the chip can effectively prevent battery damage caused by over-discharge of the rechargeable battery, thereby ensuring the service life of the rechargeable battery and avoiding the flicker phenomenon that occurs when the battery is about to be used up.
The original position high and low potential induction automatic output conversion is a function designed according to the battery discharge curve. The purpose is to keep the battery usage time in the case of constant current output, and simulate the battery discharge curve. Output attenuation, when the battery output voltage drops to 1.15V, the circuit adjusts the output current to 55% of the normal output current, thereby reducing power consumption and extending system illumination time. The chip also uses 100mV feedback voltage to detect the output current and control the loss on the current sense resistor.
The original position can also provide 1W of output power in parallel with 2 chips.
The original position of the device is currently available in a 3.9 mm x 4.9 mm 8-pin SSOP package. (Can be DFN package according to customer requirements)
Original location performance indicators:
Original position input voltage range: 1.0V-1.8V
Original position output voltage range: 2.2-5.5V
Original position 0.85V or less low voltage self-locking (UVLO)
Original position potential sensing automatic output high and low conversion
Original position integrated synchronous rectifier
Original position feedback input as low as 100mV
The original position control mode adopts PFM./PWM
Original position logical closure control
Original position overcurrent and overvoltage protection
Original position elimination inductor oscillation technology: low EMI conversion
The original location of the peripheral device only needs two: inductor, output capacitor
Original position working temperature range: -40 ° C ~ 85 ° C
The original location is packaged as a small SOP8L or DFN according to customer requirements.
Original location availability
The original position IV0101 is now in volume production and can be ordered through Innova and its distributors. The device is available in a 3.9 mm x 4.9 mm 8-pin SSOP package.
( Original link)
INNOVA has introduced a PFM/PWM-based high efficiency step-up DC power conversion chip designed for LED lighting drivers. The chip is a low voltage constant current output DC/DC boost chip that provides 0.5. The constant current output of w integrates synchronous rectifiers and switching tubes, requiring only a few external components. It combines the characteristics of LED lighting and rechargeable battery use, in addition to the functions such as soft start, overvoltage and overcurrent protection, etc., which are necessary for LED driver, it also has low voltage self-locking (UVLO), high and low potential induction automatic output conversion, etc. Features. Ideal for LEDs in single-cell rechargeable batteries and alkaline battery applications.
Original position The low-voltage self-locking function of the chip can effectively prevent battery damage caused by over-discharge of the rechargeable battery, thereby ensuring the service life of the rechargeable battery and avoiding the flicker phenomenon that occurs when the battery is about to be used up.
The original position high and low potential induction automatic output conversion is a function designed according to the battery discharge curve. The purpose is to keep the battery usage time in the case of constant current output, and simulate the battery discharge curve. Output attenuation, when the battery output voltage drops to 1.15V, the circuit adjusts the output current to 55% of the normal output current, thereby reducing power consumption and extending system illumination time. The chip also uses 100mV feedback voltage to detect the output current and control the loss on the current sense resistor.
The original position can also provide 1W of output power in parallel with 2 chips.
The original position of the device is currently available in a 3.9 mm x 4.9 mm 8-pin SSOP package. (Can be DFN package according to customer requirements)
Original location performance indicators:
Original position input voltage range: 1.0V-1.8V
Original position output voltage range: 2.2-5.5V
Original position 0.85V or less low voltage self-locking (UVLO)
Original position potential sensing automatic output high and low conversion
Original position integrated synchronous rectifier
Original position feedback input as low as 100mV
The original position control mode adopts PFM./PWM
Original position logical closure control
Original position overcurrent and overvoltage protection
Original position elimination inductor oscillation technology: low EMI conversion
The original location of the peripheral device only needs two: inductor, output capacitor
Original position working temperature range: -40 ° C ~ 85 ° C
The original location is packaged as a small SOP8L or DFN according to customer requirements.
Original location availability
The original position IV0101 is now in volume production and can be ordered through Innova and its distributors. The device is available in a 3.9 mm x 4.9 mm 8-pin SSOP package.
( Original link)
15W Interchangeable Power Adapter
15W Interchangeable Power Adapter,24V0.5A Ac/Dc Power Adapter,Detachable Ac-Dc Power Adapter 15W,5V 2A Interchangeable Plug Power Adapter
Guangdong Mingxin Power Technologies Co.,Ltd. , https://www.mxpowersupply.com