WRN78XXT-1000 Series WIDE INPUT, NON-ISOLATED & REGULATED SMD PACKAGE SINGLE OUTPUT PRODUCT PROGRAM Input Voltage(VDC) Output Voltage (VDC) Nominal Range Input Current (mA) WRN781.5T-1000 12 5.0-18 165 1.5 fixed FEATURES WRN781.8T-1000 12 5.0-18 190 1.8 1.5-3.6 WRN782.5T-1000 12 5.0-18 245 2.5 ◆Efficiency up to 92% WRN7803T-1000 12 5.0-18 320 WRN7805T-1000 12 7.0-18 460 Part Number ◆No heatsink required Vin Vin (min.) (max.) 1000 76 73 1000 78 75 1.5-3.9 1000 82 82 3.3 1.8-5.5 1000 84 84 5.0 2.5-6.5 1000 90 88 1000 92 91 Normal (mA) Range 12 8.5-18 580 6.5 fixed Note: To adjust the output voltage must be met Vin-Vo>2V. Input Current measured at nominal input voltage and rated output load. WRN786.5T-1000 ◆1.0AMP SMD package Efficienc Efficiencyy(%,Typ) Current Adjust ◆Super low ripple and noise ◆Adjustable output voltage INPUT SPECIFICATIONS ◆Remote ON/OFF control INPUT SPECIFICATIONS Test Conditions Item Min. Input Filter ◆Short circuit protection Typ. Max. Units Capacitor (10µF) Start Current(RMS) 0.95 1.1 Typ. Max. A ◆Low control current OUTPUT SPECIFICATIONS ◆Operating temperature: -40℃~ +85℃ Item Test Conditions Output Voltage Accuracy Min. ±2 ±3 ±0.2 ±0.5 ±0.4 ±1.0 20MHz bandwidth 20 35 20MHz bandwidth(refer to Figure 6) 10 15 Input voltage range at full load Line Regulation MODEL SELECTION Load Regulation WR WRN78 N78①05②T③-1000④ Ripple and Noise* ①Product Series ②Output Voltage ③SMD Package Style ④Output Current Nominal input,10% to 100% load Short Circuit Protection Mode Hiccup Mode Short Circuit Protection Continuous, automatic recovery Inside Wasted Thermal Shutdown 0.5 Internal IC junction APPLICATIONS The WRN78xxT-1000 series with high efficiency switching regulators are ideally supply for space constrained mobile applications. There is no need for any heatsinks. The additional features include remote ON/OFF Switching Frequency PWM type Transient peak deviation Input voltage range,10% to 100% Transient recovery time load Temperature Coefficient A MHz 1 -40℃ ~ +85℃ ambient ±100 mV 100 µS 3 mA ±0.02 %/℃ 1000 µF ON Open or 1.2<Vc<6V control and adjustable output voltage. Super low ripple OFF Vc<0.6V and noise of typically only 20mV and Low control current. ON: Open or 1.2<Vc≤6V ON/OFF Control Current W 1.4 Max Capacitance Load Remote ON/OFF mVp-p 1.8 ±75 Quiescent current % ℃ 150 Output current limit Units 100 200 120 200 Typ. Max. Units 95 % OFF:GND or Vc<0.4V µA Shutdown Input Current *Test ripple and noise by “parallel cable” method. COMMON SPECIFICATIONS Item Test Conditions Min. Power derating(above 71℃) -40 +85 -55 +125 Storage humidity Range Operating Temperature Range Storage Temperature Range Operating Case Temperature MICRODC reserves the copyright Lead Temperature +100 1.5mm from case for 10 seconds Cooling http://www.microdc.cn Technical Enquiries-Email:[email protected] Tel:0086-20-86000646 260 Free Air Convection Page 1 of 5 ℃ WRN78XXT-1000 Series COMMON SPECIFICATIONS Item Test Conditions TYPICAL TEMPERATURE CURVE Min. MTBF Typ. Max. Units Plastic (UL94-V0) Case Material 1000 (MIL-HDBK-217F,+25℃) k hours Not supported Hop swap 90 Thermal resistance 2.3 Weight ℃/ W g EMC SPECIFICATIONS EN55022, CLASS A(without external circuit) CE EN55022, CLASS B(refer to Figure 4) RE EN55022, CLASS A(refer to Figure 5) ESD IEC/EN61000-4-2 Air ±8KV / Contact ±6KV EFT IEC/EN61000-4-4 ±2KV perf. Criteria B Surge IEC/EN61000-4-5 ±2KV perf. Criteria B(refer to Figure 4) perf. Criteria B TYPICAL APPLICATION CIRCUIT RECOMMENDED REFLOW SOLDERING PROFILE 1. C1, C2 is required for best performance and should be fitted close to the converter pins. 2. The capacitance of C1, C2 sees external capacitor table, it can be increased properly if required, and tantalum or low ESR electrolytic capacitors may also suffice. 3. No parallel connection or plug and play. ADJUSTMENT RESISTOR VALUES The R1, R2 in the above table are used to set the output voltage . If no need to adjust the output voltage, connect a ceramic capacitor to GND with 470pF typical value for increase immunity. Insure the output voltage is in the adjust range or else may cause permanent damage to the device. Fine-tune output voltage must appease Vin-Vo>2V. http://www.microdc.cn Technical Enquiries-Email:[email protected] Tel:0086-20-86000646 Page 2 of 5 WRN78XXT-1000 Series EMC RECOMMENDED CIRCUIT TEST CONFIGURATIONS (TA=25 (TA=25℃ ℃) APPLICATION EXAMPLE To reduce output ripple, it is recommended to add a LC filter to output port. L: Recommended parameter 10µH ~ 47µH. http://www.microdc.cn Technical Enquiries-Email:[email protected] Tel:0086-20-86000646 Page 3 of 5 WRN78XXT-1000 Series CHARACTERISTIC CURVE EMC TESTING WAVE SHAPE http://www.microdc.cn Technical Enquiries-Email:[email protected] Tel:0086-20-86000646 Page 4 of 5 WRN78XXT-1000 Series OUTLINE DIMENSIONS & RECOMMENDED FOOTPRINT &PACKAGING MECHANICAL DIMENSIONS RECOMMENDED FOOTPRINT TUBE OUTLINE DIMENSIONS TAPINGREEL DIMENSIONS RoHS COMPLIANT INFORMATION This series is compatible with RoHS soldering systems with a peak wave solder temperature of 300°C for 10 seconds. The pin termination finish on the SIP package type is Tin Plate, Hot Dipped over Matte Tin with Nickel Preplate. The DIP types are Matte Tin over Nickel Preplate. Both types in this series are backward compatible with Sn/Pb soldering systems. Microdc Professional Power Module,Inc. Tel:0086-20-86000646 REACH COMPLIANT INFORMATION E-mail:[email protected] Website:http://www.microdc.cn http://www.microdc.cn This series has proven that this product does not contain harmful chemicals, it also has harmful chemical substances through the registration, inspection and approval. Technical Enquiries-Email:[email protected] Tel:0086-20-86000646 Page 5 of 5