DC DC converter USB charger board 5V 2A IN dc 6.5-40V with LED display voltage meter

Specifications

DC-DC step-down power module 6.5v 12V~40V to 5V vehicle with voltage meter USB charger for mobile phone

We produce MODULE ! CUSTOM-MADE module is OK! Our factory produce your own board! Change / modification is accepted!

 

DC-DC step-down power module 6.5v 12V~40V to  5V vehicle with voltage meter USB charger for mobile phone    

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PRODUCT PICTURE

                                                                                                                                                                                                    

 

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PRODUCT FEATURES

                                                                                                                                                                                                        

 

Two wire vehicle voltage meter, stable output 5.0V USB charging Combo

The design of high performance, multipurpose, intelligent, humanization

Module performance and highlights:

1 super wide voltage range: DC4.5~40V

The ability of 2.5V/2A output current (voltage at the 6.5~40V input to output 5.0V voltage stability)

3 key ("output enable" button switch output (USB), a "low power" button) into the ultra low power consumption

4 car voltage meter can be self calibration, there was never the problem of inaccurate voltage meter!!

5 with reverse connection protection, reverse connection does not burn

6 with over-current, over temperature protection

The 7 Band USB power indicator

8 with a wiring terminal, convenient access line

9 high efficiency, low ripple

 

Module for use:

Module power can real-time detection of voltage, when you need to mobile phone, Ipad, MP3 and other digital products charge, touch "output enable" button, the USB power indicator lights up, USB output 5.0V voltage; when you need to close the digital tube, touch "low power" button, the module enter the ultra low power standby mode, the USB output is off.

Module purpose:

The input voltage is wide, can be used for automotive / car / motorcycle, used to monitor the battery voltage, timely grasp the battery state, can be used in various voltage measurement purpose.

5.0V, 2A output current capability, enough to satisfy all kinds of USB equipment, voltage is very stable.

Note: This module is the default D+ D- shorted, compatible with most mobile phone charging, and set aside the various mobile phone recognition resistance installation position, if you need to add code, please cut the wire connected to the D+ D-, to be added.

 

Samsung: more complex, some general design without special, some short D+D-.

Nokia: D+D- shorted

HTC:D+D- shorted

Microsoft Zune:D+D- shorted

Blackberry, MOTO, Sony, Meizu: part D+D- shortened, no identification circuit, general

Apple: the identification of resistance, downward compatible with short circuit

Innovation: the identification of resistance, not compatible with short circuit

LG: Universal Design

ZTE: Universal Design

Kindle: for suspected D+D- shorted

Others not mentioned is generally universal design. Of course, does not exclude the special circumstances.

Add Apple recognition circuit, D+, D- shorted circuit compatible with apple.

 

USB identification circuit diagram as follows:

 

 

 

Resistance: 0805 package 1% accuracy

49.9K*2 identification 4992

75K*1 identification 7502

43K*1 identification 4302

Note: the Iphone D+ 75K D- 43K connected connected (pictured), compatible with D+ D- shorted

IPAD D+ 43K D- 75K connected connected (D+D- exchange)

Two wire voltage meter self calibration method for vehicle:

1 in the vehicle voltage meter normal working state, long press "output enable" button for 2 seconds after release, voltage flicker, this time to the voltage regulation mode;

2 touch "output enable" button, voltage increases one unit, touch "low power" button, voltage decreases by one unit; the voltage of a unit value is less than 0.1V, so you need continuous press 1-5 to see the voltmeter changed 0.1V, concrete continuous button a few times depending on the voltage current display the current display value, the higher the voltage, the fewer the number of;

The 3 voltage after adjustment, long press "output enable" button for 2 seconds after release, you can exit the voltage calibration model, all parameters set automatic power saving.

Note: the way you only need calibration has a precise voltage values in the whole voltage range, this function is to meet your higher accuracy requirements and design, please rest assured that the use of.

 

 

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SHIPPING TERMS

                                                                                                                                                                                                      

 

1.Ship to whole world : DHL , UPS, FEDEX, EMS, HKPOST, SGPOST,SWPOST

 

2.Lead time:2days. If we don't have stock at that time, it takes 2-4days to produce it.

 

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PAYMENT TERMS

                                                                                                                                                                                                         
 

1.We accept PAYPAL, TT, WESTERN UNION, ESCROW

 

2.Commission:
   *Paypal: total sum *0.041
   *Escrow: total sum *0.05
   *TT: $28-$45(according to amount)
   *Western union: $0

 

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GUARANTEE PERIOD

                                                                                                                                                                                                           

 

    3 Months, if the quality have any problems, We have a good after sale

 

service team will slove the quality problems for you.

 

1.If you test the products and it doesn't work, pls keep it and send it to us in 

 

   1 month, we will send the good one to you with the following order.

 

2.If the product is already used by you, then no warranty.

 

3.If the product is broken by man-made, then no warranty.

 

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CONTACT US

                                                                                                                                                                                                               

SKYPE:aimeehe2011  Cellphone:13760273376