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WRB4809ZD-1W5 Datasheet(PDF) 2 Page - Microdc power Technology Co., Ltd |
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WRB4809ZD-1W5 Datasheet(HTML) 2 Page - Microdc power Technology Co., Ltd |
2 / 3 page WRA-ZD-1W5&WRB-ZD-1W5 WRA-ZD-1W5&WRB-ZD-1W5 WRA-ZD-1W5&WRB-ZD-1W5 WRA-ZD-1W5&WRB-ZD-1W5 WRA-ZD-1W5&WRB-ZD-1W5 WRA-ZD-1W5&WRB-ZD-1W5 WRA-ZD-1W5&WRB-ZD-1W5 WRA-ZD-1W5&WRB-ZD-1W5 S Series eries http://www.microdc.cn Technical Enquiries-Email:tech@microdc.cn Tel:0086-20-86000646 Page 2 of 3 ISOLATION ISOLATION ISOLATION ISOLATION ISOLATION ISOLATION ISOLATION ISOLATION SPECIFICATIONS SPECIFICATIONS SPECIFICATIONS SPECIFICATIONS SPECIFICATIONS SPECIFICATIONS SPECIFICATIONS SPECIFICATIONS Parameter Test conditions Min. Typ. Max Units Output power See above products program 0.15 1.5 W Positive voltage accuracy Refer to recommended circuit ±1 ±3 % Negative voltage accuracy Refer to recommended circuit ±3 ±5 % Load regulation From 10% to 100% load ±0.5 ±2* % Line regulation Input voltage from low to high ±0.2 ±0.75 % Temperature drift Refer to recommended circuit ±0.03 %/℃ Ripple** 20MHz Bandwidth 20 50 mVp-p Noise** 20MHz Bandwidth 50 100 mVp-p Switching frequency 100% load, input voltage range 300 KHz * Dual output models unbalanced load: ±5%. **Test ripple and noise by “parallel cable”method. See detailed operation instructions at Testing of Power Converter section, application notes. APPLICATION APPLICATION APPLICATION APPLICATION APPLICATION APPLICATION APPLICATION APPLICATION NOTE NOTE NOTE NOTE NOTE NOTE NOTE NOTE 1) 1) 1) 1) Requirement Requirement Requirement Requirement on on on on output output output output load load load load In order to ensure the product operate efficiently and reliably, in addition to a max load (namely full load), a minimum load is specified for this kind of DC/DC converter. Make sure the specified range of input voltage is not exceeded, the minimum output load no no no no less less less less than than than than 10% 10% 10% 10% load load load load. If the actual load is less than the specified minimum load, the output ripple may increase sharply while its efficiency and reliability will reduce greatly. If the actual output power is very small, please add an appropriate resistor as extra loading, or contact our company for other lower output power products. 2) Recommended Circuit All the WRA_ZD-1W5&WRB_ZD-1W5 Series have been tested according to the following recommended testing circuit before leaving factory. (See Figure 1). If you want to further decrease the input/output ripple, you can increase capacitance properly or choose capacitors with low ESR. However, the capacitance should not be too high, or may cause start-up problem. For every channel of output, provided the safe and reliable operation is ensured, the greatest capacitance of its filter capacitor sees (Table 1).If you want to use the products in high EMI, please choose our metal packaged products (WRA_ZD-1W5 & WRB_ZD-1W5). General: Cin: 24V&48V 10µF~47µF Cout: 10µF/100mA 3) 3) 3) 3) Input Input Input Input Current Current Current Current When it is used in unregulated power supply, be sure that the fluctuating range of the power supply and the rippled voltage do not exceed the module standard. Input current of power supply should afford the startup current of this kind of DC/DC module. (See figure 2) General: Ip ≤1.4*Iin-max 4) 4) 4) 4) No No No No parallel parallel parallel parallel connection connection connection connection or or or or plug plug plug plug and and and and play play play play TYPICAL TYPICAL TYPICAL TYPICAL TYPICAL TYPICAL TYPICAL TYPICAL CHARECTERISTICS CHARECTERISTICS CHARECTERISTICS CHARECTERISTICS CHARECTERISTICS CHARECTERISTICS CHARECTERISTICS CHARECTERISTICS RECOMMENDED RECOMMENDED RECOMMENDED RECOMMENDED RECOMMENDED RECOMMENDED RECOMMENDED RECOMMENDED CIRCUIT CIRCUIT CIRCUIT CIRCUIT CIRCUIT CIRCUIT CIRCUIT CIRCUIT |
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