DC-DC buck module 6-24V12V24V to 5V3A car 97.5% USB mobile phone charger
Introduction:
OutputCurrent up to 3A, For a long time running 2.1A, the margin is sufficient.
useNew design, The circuit design does not require electrolytic capacitors and tantalum capacitors (electrolytic capacitor life is short, tantalum capacitors are at risk of explosion). Used on the high-end circuit used todayLarge size solid ceramic capacitors (MCC) 3The
Ripple is very low, 12V to 5V 3A only 10 mV or so, many ripples have reached 500 mV or greater, the equipment will cause an invisible injury, serious equipment will cause abnormal or damage,IPHONE but very delicateThe
The new scheme uses synchronous rectification, The circuit conversion efficiency is very high, at 6.5V to 5V 0.7A timeEfficiency up to 97.5%, 12V to 5V 1A time also reached 94%, unlike the peer some efficiency is only 60-70%. (Efficiency test eliminates the input drop resistance of the diodes and fuses).
useFlat copper wire inductance, To maximize the conversion efficiency. Reduce calorific value.
The first line with the output overvoltage protection, The input of a fuse of 1.5A, the output 5V 300W TVS tube made over the pressure clamp protection, protection of USB devices.
Now the peer USB buck module are not over-voltage protection, the USB device there is a very big security risk, you think if the buck module breakdown, 12V directly added to yourIPHONE above, your IPHONE can be spared?
Using the latest USB recognition circuit, perfect compatibilityIPHONE, the vast majority of Andrews mobile phones, IPADThe
Short side gold plated boundless USB, Long life, not ordinary USB interface can match.
Output voltage indicatorred)
Input withReverse polarity protection diode, Input positive and negative lead and then will not be damaged, (OUR test efficiency ignores the input diode and fuse voltage drop)
Ultra-low quiescent current, quiescent current 0.85 mAThe Connected to the car battery without the need for switching, can be connected to the cigarette lighter line, or ACC power line.
QS-1205CBUL-3A power supply module
Module parameters：
Modular nature:Non-isolated step-down module (BUCK) synchronous rectification
Input voltage:DC 6-24V
The output voltage:5.1-5.2V(You can choose between 3.3-6V, if other voltage please inform the dispensers in advance, the default delivery is 5.1V-5.2)
Output current:Maximum 3A (full load please pay attention to heat), the actual test input 12V output within 2A without special treatment heat dissipation.
Conversion efficiency:highest97.5%(6.5 rpm to 5V 0.7A)(Short reverse polarity protection and fuse after the test value)
Switching frequency:500KHz
Output ripple:10mV (12V to 5V3A) 20M bandwidth
Output indication:The output voltage indicator isred
Operating temperature:Industrial grade (-40 ° C to + 85 ° C) (the higher the ambient temperature, the smaller the output power)
Output overvoltage protection:Yes, enter 1.5A fuse, output 5V with 300W TVS tube clamp protection.
Full load temperature rise:30 ° C
Quiescent Current:0.85Milliampere
Load Regulation:± 1%
Voltage regulation:±0.5%
Dynamic response speed:5% 200uS
Output short circuit protection:Yes, please do not short circuit for a long time
Input Reverse Protection:Yes, the input reverse polarity protection diode
Wiring:welding
Input method:welding
output method:Short head boundless USB
