BR203

BR202/203 POL Converter Module for 12 V System Intermediate Bus Features and Benefits Description • Industry standard footprint • Improved soldering: gold-plated pads and side notches • Synchronized rectifying type stepdown chopper • High power • High efficiency: ▫ BR202, 88.5% at VIN = 12 V, VO = 1.2 V, IO = 11 A ▫ BR203, 93.4% at VIN = 12 V, VO = 3.3 V, IO = 12 A • Operating temperature range: –40°C to 85°C • Input voltage range: 10.8 to 13.2 VDC • Output voltage: BR202, 0.75 to 1.65 V; BR203, 1.6 to 3.63 V • Output current range: 0 to 20 A • Operating frequency: BR202, 300 kHz; BR203, 400 kHz • Overcurrent protection function The BR202 and BR203 are thin type POL converter modules with an industry standard exterior shape and footprint, responsive to very high speed loads and compatible with ceramic capacitors. They can be used as design-free POL converters for a 12 V system intermediate bus. They can be configured easily, reducing overall design time, and allowing reuse of designs. Miniaturization was achieved by high frequency switching technology, allowing saving space on the application PCB. Soldering capability has been significantly improved by adoption of end face through holes. Package: Module Applications: • Communication devices • Computer server • Other low power conversion 33.0 × 13.5 × 4.2 mm Typical Application Circuit VPG (5 V) BR202/203 ON/OFF VS+ Power Good PG VOUT VIN VIN RTRIM GND ON/OFF CIN RTRIM GND BR202-DS, Rev. 0.03E SANKEN ELECTRIC CO., LTD. http://www.sanken-ele.co.jp/en/ VOUT COUT BR202/203 POL Converter Module for 12 V System Intermediate Bus Selection Guide Part Number Output Voltage, VOUT (V) Operating Frequency, fOP (kHz) BR202 BR203 0.75 to 1.65 1.60 to 3.63 300 400 The polarity value for current specifies a sink as "+," and a source as “−,” referencing the IC. Absolute Maximum Ratings, valid at TA = 25°C Characteristic ¯ ¯F ¯ ¯F ¯ Pin Voltage ON/¯O PG Pin Voltage Symbol Notes VONOFF VPG Sink current 7 mA Pins Rating Unit 1 7 V 9 7 V Operating Temperature Range TA – –40 to 85 °C Storage Temperature Range Tstg – –40 to 85 °C Operating Humidity Range HOP No condensation – 20 to 85 % Storage Humidity Range Hstg No condensation – 10 to 95 % BR202-DS, Rev. 0.03E SANKEN ELECTRIC CO., LTD. 2 BR202/203 POL Converter Module for 12 V System Intermediate Bus Electrical Characteristics Unless specifically noted, TA is 25°C Characteristic Input Voltage Range Symbol Output Voltage VOUT Output Current IOUT Output Voltage Accuracy Ripple Voltage1 Efficiency Operating Frequency Overcurrent Protection Threshold Input Capacitor2 Output Capacitor2 Startup Time Test Conditions VIN ErrVOUT BR202 BR203 With temperature derating VIN = 10.8 to 13.2 V, IOUT = 0 to IOUT(max), Operating Temperature Range, RTRIM = 1% accuracy fOP Typ. Max. Unit 10.8 12.0 13.2 V 0.75 – 1.65 V 1.60 – 3.63 V 0 – 20 A –2.0 – 2.0 %VOUT BR202 BW = 20 MHz, VOUT = 1.2 V, IOUT = 0 to 20 A, COUT = 400 μF – 15 100 mVp-p BR203 BW = 20 MHz, VOUT = 3.3 V, IOUT = 0 to 20 A, COUT = 400 μF – 25 100 mVp-p BR202 VIN = 12 V, IOUT = 20 A, VOUT = 1.2 V – 86.1 – % BR203 VIN = 12 V, IOUT = 20 A, VOUT = 3.3 V – 92.3 – % Vrip η Adjust with RTRIM Min. BR202 – 300 – kHz BR203 – 400 – kHz Hiccup – 30 – A CIN When input voltage is an ideal voltage source 40 – 5000 μF COUT When input voltage is an ideal voltage source 400 – 4000 μF – 2.0 – ms IOUT(OCP) tr BR202 BR203 VOUT from 10% to 90% points Start Delay Time td ¯ ¯F ¯ ¯F ¯ pin open, measured from the With the ON/¯O VIN pin switching high, to VOUT reaching 10% of operating level (see figure 1) ¯ ¯F ¯ ¯F ¯ Start Delay Time ON/¯O trcd With the VIN pin high, measured from the ¯ ¯F ¯ ¯F ¯ pin switching open, to VOUT reaching ON/¯O 10% of operating level (see figure 2) – 1.5 – ms – 2 – ms – 2 – ms Interface Characteristics Power Good PWGL Lower limit of Power Good 92.5 96.0 98.5 %VOUT PWGH Upper limit of Power Good 108.0 111.0 114.0 %VOUT 1.8 – – V – – 0.5 V ¯ ¯F ¯ ¯F ¯ Pin High Voltage ON/¯O VIH ¯ ¯F ¯ ¯F ¯ pin is set open, the When the ON/¯O BR202/203 converters are turned on ¯ ¯F ¯ ¯F ¯ Pin Low Voltage ON/¯O VIL ¯ ¯F ¯ ¯F ¯ pin is pulled down to GND, When the ON/¯O the BR202/203 converters are turned off 1See the Ripple Voltage Measuring Method section. a decoupling capacitor near the VIN terminal and the VOUT terminal of the BR202/203 devices. 2Place BR202-DS, Rev. 0.03E SANKEN ELECTRIC CO., LTD. 3 BR202/203 POL Converter Module for 12 V System Intermediate Bus Characteristic Definitions ON/OFF 0 VIN 0 90% VOUT 10% 0 td tr Figure 1. Start Delay Time, td , definition VIN 0 ON/OFF 0 90% VOUT 10% 0 trcd tr ¯ ¯F ¯ ¯F ¯ Start Delay Time, trcd , definition Figure 2. ON/¯O BR202-DS, Rev. 0.03E SANKEN ELECTRIC CO., LTD. 4 BR202/203 POL Converter Module for 12 V System Intermediate Bus Performance Characteristics TA = 25°C Efficiency versus Output Current BR202, VOUT = 1.2 V BR203, VOUT = 3.3 V Temperature Derating Measuring condition: Product soldered directly to 101.6 ×101.6 mm, 1.6 mm thick, 6-layer PCB PCB is mounted vertically during measurement Measuring locations (Centers of top surface of major components) Airflow BR202, VOUT = 1.2 V, VIN = 12 V 1.5 m/s Airflow BR202-DS, Rev. 0.03E BR203, VOUT = 3.3 V, VIN = 12 V 1.5 m/s Airflow SANKEN ELECTRIC CO., LTD. 5 BR202/203 POL Converter Module for 12 V System Intermediate Bus Functional Description Power Good ( PG) Operation When output voltage, VOUT , is within the Power Good detection range, the PG pin is disconnected internally by the MOSFET switch. The signal at the Power Good node is pulled up to 5 V. If VOUT falls out of the Power Good detection range, the MOSFET switch connects PG to GND, and the signal at the Power Good node is pulled low. The PG peripheral circuit is shown in figure 3. BR202/203 VPG (5V) PG Power Good GND GND Figure 3. PG peripheral circuit Output Sensing ( VS+) and Compensation Reduction in output voltage can be compensated by connecting the output sense terminal, VS+ , to the load. When using LC filter, the proper connection is shown in panel A of figure 2. Note: Do not connect the output sense terminal to the output of the LC filter. It may not operate normally. BR202/203 L VOUT (A) VS+ Load GND COUT CAUTION: When the output sense terminal is not used, it must be connected directly to the VOUT output terminal. This is shown in panel B of figure 4. ¯¯F ¯¯F ¯) External On/Off Output Control (ON/¯O Operation of the output of the product can be turned on and off by using the On/Off function, irrespective of input voltage connection. This is enabled by connection of the ON/¯O¯¯F¯F pin (pin 1) (refer to panel A of figure 5): COL BR202/203 VOUT (B) VS+ Load GND COUT Figure 4. VS+ peripheral circuit • When the ON/¯O¯¯F¯F pin is open, the output voltage is on BR202/203 • When the ON/¯O¯¯F¯F pin is connected to GND, the output voltage is off ON/OFF (A) GND Multiple BR202 and BR203 devices can be controlled by the same switch, by connecting the devices in parallel across the switch (refer to panel B of figure 5). CAUTION: • The ON/¯O¯¯F¯F pin is pulled up to VIN via a resistor and is connected to GND via a resistor inside the BR202/203 converters. (B) • The ON/¯O¯¯F¯F pin voltage is set to around 40% of VIN . Do not feed voltage higher than 7 V to the pin from outside the BR202/BR203 converters. • When the ON/¯O¯¯F¯F pin voltage is higher than 5.5 V, connect a 1 kΩ resistor to the ON/¯O¯¯F¯F pin in series. BR202-DS, Rev. 0.03E ON/OFF ON/OFF BR202 BR203 BR202 BR203 GND GND ¯ ¯F ¯ ¯F ¯ peripheral circuit Figure 5. ON/¯O SANKEN ELECTRIC CO., LTD. 6 BR202/203 POL Converter Module for 12 V System Intermediate Bus RTRIM Constant Reference Value for Output Voltage The output voltage level is set by the value of a resistance connected to the RTRIM pin. The following table provides representative values for RTRIM to generate voltages within the specified VOUT ranges: BR202 BR203 VOUT (V) RTRIM (Ω) VOUT (V) RTRIM (Ω) 1.65 28350 3.63 9801 1.5 33039 3.3 10979 1.2 49540 2.5 15520 1 74572 1.8 24449 0.95 85408 1.6 29302 0.9 99960 0.75 205284 Device resets Input Voltage (V) Max. 1.0 V Min. 100 ms 0 0 time (ms) Device resets ON/OFF Pin Voltage (V) Max. 0.5 V Min. 10 ms Reset Conditions 0 0 time (ms) There are two methods for resetting all functions in the BR202/203 (refer to figure 6): • Set VIN pin voltage to 1.0 V or lower for a minimum of 100 ms, or Figure 6. Reset conditions timing diagrams • Set the ON/¯O¯¯F¯F pin voltage to 0.5 V or lower for a minimum of 10 ms BR202-DS, Rev. 0.03E SANKEN ELECTRIC CO., LTD. 7 BR202/203 POL Converter Module for 12 V System Intermediate Bus Application Information Test Measuring Circuit The test measuring circuit used for establishing the BR202/203 electrical characteristics is is shown in figure 7. VPG (5 V) ON/OFF The decoupling capacitors, CIN and COUT , should be ceramic capacitors, placed near the I/O terminals of the BR202/203. Ripple Voltage Measuring Method Figure 8 provides the test measurement circuit used for establishing voltage ripple. BR202/203 VS+ Power Good PG VOUT VIN VIN RTRIM GND CIN ON/OFF VOUT COUT RTRIM GND CIN: Ceramic capacitor 40 μF COUT: Ceramic capacitor 400 μF Figure 7. Test circuit for electrical characteristics Terminator 1.5D2V coaxial cable (RG-174/U equivalent) 1.5 m length VIN VOUT BR202/203 VIN CIN Keisoku Giken TRC-50F Equivalent circuit 50 Ω COUT Ceramic capacitor, 200 μF Install near the test probe Oscilloscope BW 20 MHz Z = 1 MΩ 10 nF GND Rated Load Vrip Switching Period Figure 8. Test circuit for ripple voltage measurement BR202-DS, Rev. 0.03E SANKEN ELECTRIC CO., LTD. 8 BR202/203 POL Converter Module for 12 V System Intermediate Bus Package Outline Drawing Pick-up point Scale: 1:2 4.2 MAX 33.02 ±0.5 (14.7) +0.15 –0 (7.4) 13.46 ±0.5 0.85 Product Identification Number: 2 for BR202 3 for BR203 Pin 1 Lot Number • All dimensions are in millimeters • Dimensions shown in parentheses are reference dimensions. • Product Weight 3.5 g • Product Outline 33.0 x 13.5 x 4.2 mm (W × D × H) tolerance includes burrs and protrusions remaining from splitting the printed circuit board • Coplanarity 0.1 mm (max) Pb-free, compliant with the RoHS Directive. RoHS Directive Compliance: Lead, cadmium, mercury, hexavalent chromium and PBB, PBDE meet the specified criteria on the basis of EU Directive 2002/95/EC, except for nonrestricted materials. BR202-DS, Rev. 0.03E SANKEN ELECTRIC CO., LTD. 9 BR202/203 POL Converter Module for 12 V System Intermediate Bus PCB Board Layout and Pin-out Diagram (33.02) 31.12 27.08 23.24 18.42 13.59 8.76 1.22 (13.5) BR202/203 1.78 1.48 VS+(7) NC(8) 2.8 RTRIM(6) 3.1 GND(4) VOUT(5) NC(3) ON/OFF(1) 8 1.91 PG(9) VIN(2) 2.14 0.74 0.15 1.27 6.73 0.15 12.19 NC(10) Bottom View • The tolerance for all dimensions shown is ±0.1 mm. • There are lands of the module, pattern, and through holes. Please give consideration to providing sufficient creepage distance when designing the pattern (the traces of different potentials are placed for a creepage distance of 0.25 mm from the land boundaries indicated by the dotted lines). • The shaded areas indicate dimensions of lands (copper foil dimensions) on the PCB. (1.48 mm x 2.8 mm are the dimensions of a land / footprint.) Dimensions of a footprint do not include tolerance. Dimensions include only an assumed mounting variance of 0.15 mm for both vertical and horizontal directions. • In actual use of a module, please consider actual mounting variances and adjust footprint dimensions. • A dotted line indicates a pad of a module. The area which exceeds the footprint dimensions of 1.48 mm x 2.8 mm is the extended pad. When a user requires improvement in power dissipation and to maximize soldered area, it is recommended to cover the whole shaded area. But if a user does not require the improvement, please use the module with minimum pad area, 1.48 mm x 2.8 mm. Pin List Table Number Name 1 ¯ ¯F ¯ ¯F ¯ ON/¯O 2 VIN Supply for device 3, 8,10 NC No connection 4 GND Device ground terminal 5 VOUT Output voltage terminal 6 RTRIM Output voltage level setting terminal, connect to external resistor RTRIM 7 VS+ Output feedback sense terminal 9 PG Power Good flag output BR202-DS, Rev. 0.03E Function Input for external control of output Figure 9. Optional edge soldering at through hole centers SANKEN ELECTRIC CO., LTD. 10 BR202/203 POL Converter Module for 12 V System Intermediate Bus OPERATING PRECAUTIONS Because reliability can be affected adversely by improper storage environments and handling methods, please observe the following cautions. Cautions for Storage • Ensure that storage conditions comply with the standard temperature (5°C to 35°C) and the standard relative humidity (around 40% to 75%); avoid storage locations that experience extreme changes in temperature or humidity. • Avoid locations where dust or harmful gases are present and avoid direct sunlight. • Reinspect for rust on leads and solderability of products that have been stored for a long time. Cautions for Testing and Handling When tests are carried out during inspection testing and other standard test periods, protect the products from power surges from the testing products, shorts between the product pins, and wrong connections. In addition, avoid tests exceeded ratings. Electrostatic Discharge • When handling the products, the operator must be grounded. To prevent shock hazard, grounded wrist straps should be used and at least 1 MΩ of resistance from the operator to ground should be placed near the operator. • Workbenches where the products are handled should be grounded and be provided with conductive table and floor mats. • When using measuring equipment such as a curve tracer, the equipment should be grounded. • When soldering the products, the head of a soldering irons or the solder bath must be grounded in order to prevent leak voltages generated by them from being applied to the products. • The products should always be stored and transported in Sanken shipping containers or conductive containers, or be wrapped in aluminum foil. Cautions for Use • Do not use the power modules under overload conditions as that will damage the module and cause a malfunction or failures. • Use the products within the specified input voltage range. BR202-DS, Rev. 0.03E SANKEN ELECTRIC CO., LTD. 11 BR202/203 POL Converter Module for 12 V System Intermediate Bus • The contents in this document are subject to changes, for improvement and other purposes, without notice. Make sure that this is the latest revision of the document before use. • Application and operation examples described in this document are quoted for the sole purpose of reference for the use of the products herein and Sanken can assume no responsibility for any infringement of industrial property rights, intellectual property rights or any other rights of Sanken or any third party which may result from its use. • Although Sanken undertakes to enhance the quality and reliability of its products, the occurrence of failure and defect of semiconductor products at a certain rate is inevitable. Users of Sanken products are requested to take, at their own risk, preventative measures including safety design of the equipment or systems against any possible injury, death, fires or damages to the society due to device failure or malfunction. • Sanken products listed in this document are designed and intended for the use as components in general purpose electronic equipment or apparatus (home appliances, office equipment, telecommunication equipment, measuring equipment, etc.). When considering the use of Sanken products in the applications where higher reliability is required (transportation equipment and its control systems, traffic signal control systems or equipment, fire/crime alarm systems, various safety devices, etc.), and whenever long life expectancy is required even in general purpose electronic equipment or apparatus, please contact your nearest Sanken sales representative to discuss, prior to the use of the products herein. The use of Sanken products without the written consent of Sanken in the applications where extremely high reliability is required (aerospace equipment, nuclear power control systems, life support systems, etc.) is strictly prohibited. • In the case that you use Sanken products or design your products by using Sanken products, the reliability largely depends on the degree of derating to be made to the rated values. Derating may be interpreted as a case that an operation range is set by derating the load from each rated value or surge voltage or noise is considered for derating in order to assure or improve the reliability. In general, derating factors include electric stresses such as electric voltage, electric current, electric power etc., environmental stresses such as ambient temperature, humidity etc. and thermal stress caused due to self-heating of semiconductor products. For these stresses, instantaneous values, maximum values and minimum values must be taken into consideration. In addition, it should be noted that since power devices or IC's including power devices have large self-heating value, the degree of derating of junction temperature affects the reliability significantly. • When using the products specified herein by either (i) combining other products or materials therewith or (ii) physically, chemically or otherwise processing or treating the products, please duly consider all possible risks that may result from all such uses in advance and proceed therewith at your own responsibility. • Anti radioactive ray design is not considered for the products listed herein. • Sanken assumes no responsibility for any troubles, such as dropping products caused during transportation out of Sanken's distribution network. • The contents in this document must not be transcribed or copied without Sanken's written consent. BR202-DS, Rev. 0.03E SANKEN ELECTRIC CO., LTD. 12