NJW4161 Application Board

Transcription

1 Board Information Board Name: NJW4161 CG-674 Function: MOSFET Drive Switching Regulator IC for Buck Converter Application Spec IC: Input voltage: Output voltage: Output current: Oscillating Frequency: Standby Function: NJW4161R(A, B, C version common) 6V to 18V 5V 3A 345kHz typ. Operate with high at ON/OFF pin, and standby with low. Board Image Ver

2 Application Circuit VIN+=12V C IN1 10mF/50V, 2pcs. R SENSE2 Open R SENSE1 30mW VIN- C LF1 2,200pF C LF2 Open R LF1 22W R LF2 0W R G 0W C SENSE 1mF/50V Q1 C IN2 0.1mF/50V V + OUT SI 1 REGH C REGH 0.1mF SBD L1 10mH/6.7A VOUT+=5V (*1) 750W IN- 5 NJW4161 FB RT 6 7 GND 8 C OUT 47mF/16V C FB 180pF R FB 1kW R2 68kW C NF2 Open R T 5.6kW R1 13kW Q2 R ONOFF 300kW VOUT- R NF 6.8kW C NF1 6,800pF ONOFF This board operates at input voltage from 1.5V to 8V into ONOFF pin Ver

3 PCB Layout Ver

4 BOM Reference Qty. Part Number Description Manufacturer IC1 1 NJW4161R MOSFET Drive Switching Regulator IC for Buck Converter New JRC Q1 1 FDD4243 Pch MOSFET 40V, 14A Fairchild Q2 1 3LN01M Nch MOSFET 30V, 0.15A ON Semiconductor L1 1 CLF12555T-100M Inductor 10mH, 6.7A TDK SBD 1 DE5SC4M Schottky Diode 40V, 5A Shindengen C IN1 2 UMK325BJ106MM-P Ceramic Capacitor mF, 50V, X5R Taiyo yuden C IN mF Ceramic Capacitor mF, 50V, B Std. C OUT 1 GRM32EB31C476KE15L Ceramic Capacitor mF, 16V, B Murata C REGH 1 0.1mF Ceramic Capacitor mF, 25V, B Std. C NF1 1 6,800pF Ceramic Capacitor ,800pF, 50V, B Std. C NF2 0 Open C FB 1 180pF Ceramic Capacitor pF, 50V, CH Std. C LF1 1 2,200pF Ceramic Capacitor ,200pF, 50V, B Std. C LF2 0 Open C SENSE 1 UMK212BJ105KG-T Ceramic Capacitor mF, 50V, B Taiyo yuden R1 1 13kW Resistor kW, 1%, 0.1W Std. R2 1 68kW Resistor kW, 1%, 0.1W Std. R NF 1 6.8kW Resistor kW, 5%, 0.1W Std. R FB 1 1kW Resistor kW, 5%, 0.1W Std. R G 1 0W (Short) Resistor W, 0.1W Std. R SENSE1 1 LPS1R030FE Current Sense Resistor 30mW, ±1%, 1W Hokuriku Electric Industry R SENSE2 0 Open R LF1 1 22W Resistor W, ±5%, 0.1W Std. R LF2 1 0W (Short) Resistor W, 0.1W Std. R T 1 5.6kW Resistor kW, 1%, 0.1W Std. R ONOFF 1 300kW Resistor kW, ±5%, 0.1W Std. (*1) is resistor of the back side. Resistor 750W is setting the output voltage. The resistor is 0W (Short), when change the output voltage Ver

5 Efficiency (%) Output Voltage V OUT (V) Efficiency (%) Output Voltage V OUT (V) NJW4161 Application Board Application Characteristics PWM control : A version, B version Efficiency vs. Output Current (PWM ver., V OUT =5V, Ta=25ºC) V IN =6V V IN =12V V IN =18V Output Voltage vs. Output Current (PWM ver., Ta=25ºC) V IN =6V, 12V, 18V PWM/PFM Control : C version Efficiency vs. Output Curent (PWM/PFM ver., V OUT =5V, Ta=25ºC) V IN =6V V IN =12V V IN =18V Output Voltage vs. Output Current (PWM/PFM ver., Ta=25ºC) V IN =6V, 12V, 18V Ver

6 Notes 1. The product specifications and descriptions listed in this document and/or related document are subject to change at any time, without notice. 2. New JRC strives to produce reliable and high quality products. New JRC's products are intended for specific applications and require proper maintenance and handling. To enhance the performance and service of New JRC's products, the devices, machinery or equipment into which they are integrated should undergo preventative maintenance and inspection at regularly scheduled intervals. Failure to properly maintain equipment and machinery incorporating these products can result in catastrophic system failures. 3. The specifications on this document and/or related document are only given for information, without any guarantee as regards either mistakes or omissions. The application circuits in this document and/or related document are described only to show representative usages of the product and not intended for the guarantee or permission of any right including the industrial rights. All other trademarks mentioned herein are property of their respective companies. 4. To ensure the highest levels of reliability, New JRC products must always be properly handled. The introduction of external contaminants (e.g. dust, oil or cosmetics) can result in failures of products. 5. New JRC offers a variety of products intended for particular applications. It is important that customer select the proper component for your intended application. You may contact New JRC's sale's office if you are uncertain about the products listed in this document and/or related document. 6. Special care is required in designing devices, machinery or equipment which demands high levels of reliability. This is particularly important when designing critical components or systems whose failure can foreseeably result in situations that could adversely affect health or safety. In designing such critical devices, equipment or machinery, careful consideration should be given to, amongst other things, their safety design, fail-safe design, back-up and redundancy systems, and diffusion design. 7. The products listed in the document and/or related document may not be appropriate for use in certain equipment where reliability is critical or where the products may be subjected to extreme conditions. You should consult our sales office before using the products in any of the following types of equipment. Aerospace Equipment Equipment Used in the Deep sea Power Generator Control Equipment (Nuclear, Steam, Hydraulic) Life Maintenance Medical Equipment Fire Alarm/Intruder Detector Vehicle Control Equipment (automobile, airplane, railroad, ship, etc.) Various Safety Devices 8. New JRC s products described in this document and/or related document are designed not to have radiation resistance. 9. New JRC's products have been designed and tested to function within controlled environmental conditions. Do not use products under conditions that deviate from methods or applications specified in this document and/or related document. Failure to employ New JRC products in the proper applications can lead to deterioration, destruction or failure of the products. New JRC shall not be responsible for any bodily injury, fires or accident, property damage or any consequential damages resulting from misuse or misapplication of its products. Products are sold without warranty of any kind, either express or implied, including but not limited to any implied warranty of merchantability or fitness for a particular purpose. 10. Warning for handling Gallium and Arsenic (GaAs) Products (Applying to GaAs MMIC, Photo Reflector). Those Products uses Gallium (Ga) and Arsenic (As) which are specified as poisonous chemicals by law. For the prevention of a hazard, does not burn, destroy, or process chemically to make them as gas or power. When the product is disposed, please follow the related regulation and do not mix this with general industrial waste or household waste. 11. Please use the product according to applicable environmental laws and regulations such as RoHS directive. For details including RoHS compatibility, please contact our sales office. We are not responsible for any damage or loss resulting from none compliance applicable laws or regulations. 12. In providing the products and technologies described in this document and/or related document to other countries, customer must comply with the procedures and provisions stipulated in all applicable export laws and regulations Ver