QA-XS MICRODC | Alldatasheet

Document overview

  • Manufacturer or author: Provided By ALLDATASHEET.COM(FREE DATASHEET DOWNLOAD SITE)
  • PDF pages: 2

Technical content

Q Q A-XS& A-XS& Q Q B-XLS B-XLS Series Series http://www.microdc.cn Technical Enquiries-Email:tech@microdc.cn Tel:0086-20-86000646 Page of PRODUCT PRODUCT PROGRAM PROGRAM Part Number Input Output Efficiency (%, Typ) Voltage (VDC) Voltage (VDC) Current (mA) Nominal Nominal Max QB0303XLS 3.3 3.0-3.6 3.3 75.8 QB0305XLS QA0505XS 4.5-5.5 QA0509XS 13.8 QA0512XS 10.4 QA0515XS 8.3 QB0505XLS QB0509XLS 27.8 QB0512XLS 20.8 QB0515XLS 16.7 QA1205XS 10.8-13.2 QA1209XS 13.8 QA1212XS 10.4 QA1215XS 8.3 QB1203XLS 3.3 75.8 QB1205XLS QB1209XLS 27.8 QB1212XLS 20.8 QB1215XLS 16.7 QA2405XS 21.6-26.4 QA2409XS 13.8 QA2412XS 10.4 QA2415XS 8.3 QB2405XLS QB2409XLS 27.8 QB2412XLS 20.8 QB2415XLS 16.7 QB2424XLS 10.4 MODEL MODEL SELECTION SELECTION Q Q B B X X LS LS Product Series Input Voltage Output Voltage Fixed Input SIP-7 Package COMMON COMMON SPECIFICATIONS SPECIFICATIONS Item Test conditions Min Typ Max Units Storage humidity Operating Temperature -40 Storage Temperature -55 125 Temp. rise at full load Lead temperature 1.5mm from case for seconds 300 Short circuit protection* s Cooling Free air convection Case material Plastic (UL94-V0) MTBF 3500 K hours Weight 2.1 g *Supply voltage must be discontinued at the end of short circuit duration. MICRODC RESERVES THE COPYRIGHT 0.25W, FIXED INPUT , ISOLA TED&UNREGULA TED DUAL/SINGLE OUTPUT DC-DC CONVERTER

FEATURES

Range: -40 to +85 No Heat sink Required No External Component Required Industry Standard Pin out

APPLICATIONS

Q A-XS& Q B-XLS Series are specially designed for a group of polar power supplies are isolated from the input power supply in a distributed power supply system on a circuit board. These products apply to: Where the voltage of the input power supply is fixed (voltage variation 10%); Where isolation is necessary between input and output (isolation voltage 1000VDC); Where the regulation of the output voltage and the output ripple noise are not demanding. Such as: purely digital circuits,ordinary low frequency analog circuits, and IGBT power device driving circuits.

Q Q A-XS& A-XS& Q Q B-XLS B-XLS Series Series http://www.microdc.cn Technical Enquiries-Email:tech@microdc.cn Tel:0086-20-86000646 Page of APPLICATION APPLICATION NOTE NOTE Requirement on output load To ensure this module can operate efficiently and reliably, During operation, the minimum output load is not less than 10% of the full load, and that this product should never be operated under no load! If the actual output power is very small, please connect a resistor with proper resistance at the output end in parallel to increase the load. Overload Protection Under normal operating conditions, the output circuit of these products has no protection against overload. The simplest method is to connect a self-recovery fuse in series at the input end or add a circuit breaker to the circuit. Recommended circuit If you want to further decrease the input/output ripple, an "LC" filtering network may be con n ecte d to the input and output ends of the DC/DC converter, see (Figure 1). i t should also be noted that the inductance and the frequency of the "LC" filtering network should be staggered with the DC/DC frequency to avoid mutual interference. However, the capacitance of the output filter capacitor must be proper. If the capacitance is too big, a startup problem might arise. It's not recommended to connect any external capacitor in the application field. Output Voltage Regulation and Over-voltage Protection Circuit The simplest device for output voltage regulation, over-voltage and over-current protection is a linear voltage regulator with overheat protection that is connected to the input or output end in series (Figure 2). No parallel connection or plug and play. ISOLATION ISOLATION SPECIFICATIONS SPECIFICATIONS Item Test conditions Min Typ Max Units Isolation voltage Tested for minute and mA max 1000 VDC Isolation resistance Test at 500VDC 1000 M Ω OUTPUT OUTPUT SPECIFICATIONS SPECIFICATIONS Item Test conditions Min Typ Max Units Output power 0.25 W Line regulation For Vin change of (3.3V input) 1.5 (Others input) 1.2 Load regulation 10% to 100% load (3.3V output) (5V output) 10.5 (9V output) 8.3 (12V output) 6.8 (15V output) 6.3 Output voltage accuracy See tolerance envelope graph Temperature drift 100% full load 0.03 Ripple Noise* 20MHz Bandwidth mVp-p Switching frequency Full load, nominal input 100 KHz *Test ripple and noise by arallel cable method. See detailed operation instructions at Testing Note: All specifications measured at T A =25 humidity<75%, nominal input voltage and rated output load unless otherwise specified. See below recommended circuits for more details. Dual output models unbalanced load: 5%. TYPICAL TYPICAL CHARACTERISTICS CHARACTERISTICS OUTLINE OUTLINE DIMENSIONS DIMENSIONS PIN PIN CONNECTIONS CONNECTIONS