(function(){
let w = window.innerWidth;
function setHeaderCssVar() {
const headerEle = document.getElementById('shoplaza-section-header');
if(!headerEle){ return };
document.body.style.setProperty('--window-height', `${window.innerHeight}px`);
document.body.style.setProperty('--header-height', `${headerEle.clientHeight}px`);
const mdScorllHideEle = headerEle.querySelector('.header__mobile .header__scroll_hide');
if (mdScorllHideEle) {
document.body.style.setProperty('--header-scroll-hide-height-md', `${mdScorllHideEle.clientHeight}px`);
}
const pcScorllHideEle = headerEle.querySelector('.header__desktop .header__scroll_hide');
if (pcScorllHideEle) {
document.body.style.setProperty('--header-scroll-hide-height-pc', `${pcScorllHideEle.clientHeight}px`);
}
}
function handlResize() {
if(w == window.innerWidth){return};
w = window.innerWidth;
setHeaderCssVar();
};
function init(){
setHeaderCssVar();
window.removeEventListener('resize', window._theme_header_listener)
window._theme_header_listener = handlResize;
window.addEventListener('resize', window._theme_header_listener);
}
init();
})();
Description
Product Description
TB293 7W USB DC 5V to 6V 9V 12V 15V Adjustable Output DC DC Converter Step Up Boost Module for LED Motor fan
Description:
Input voltage 3~6V, output 6-15.5V
Maximum input current : 1.4A
Long-term work Current : 1A
Conversion efficiency : 79-90%
Input : USB MaleInterface,DC 3-6V;
Ouput : 2 PIN XH2.54, DC 6-15.5V;
If input dc 5v,output 6-15.5V Adjustable
Power : Maximum 7W;
DC-DC Boost module working frequency 1.0MHZ.
Operating ambient temperature : -40~+85 Degrees Celsius .
Size 47.6mm x 16.2mm
Weight : about 4.6g(light)
Applications:
6-15V Low Power Motor
6-15V LED Lighting
Hard drive power supply
9V 12V 15V Routers and network equipment
Wireless communication equipment
315M 433M Wireless remote controller
Attention :
This is a DC-DC voltage converter module,Must be noted when using:
1 Input voltage can not be greater than the maximum input range 2 Output power can not be greater than the maximum load for a long time 3 Input power must be greater than the output power, because the power consumption of the module itself
Q & A:
Q : Why output voltage is less than the nominal voltage
A : Input power supply power is too low.Test the input voltage with a multimeter,a t this time of the input voltage is very low
Modify Parameter Description:
1.4A current limiting resistor,Remove the resistance, the maximum input current can reach 2A.
But IC have "Over Temperature Protection" Function.It will turn off the power MOSFET automatically when the internal junction temperature is over 150 Degrees Celsius. The power MOSFET wake up when the junction emperature drops 30 Degrees Celsius under the OTP threshold temperature
