Q-ClassConverters QHS40-025 Model OBSOLETE PRODUCT Model Parameter 2.5V Output Voltage Setpoint Line/Load Regulation Max Output total regulation Output adjust Remote-sense Comp. Output Ripple & Noise (note 2) Output Current Units 2.475 – 2.525 Vdc 0.1%, 0.2% % Vo 2.43 – 2.57 Vdc 90-110 %Vo,nom 10% V Max 100 mVp-p Min 0.5 A Max 40 A Efficiency (48V, Full load, 25C) Typ 88.5% % External Capacitance Max 10,000 μF Transient Response (typ) (note3) ΔVo 150 mV Ts 300 μs Over-voltage trip point -static -dynamic max 3.0 – 3.3 3.5 V Over-current trip point Typ 46 A 25% step, 1A/μs All specifications at Ta=25C, Vin=48V, 300 LFM unless otherwise specified For full details go to www.murata-ps.com/rohs www.murata-ps.com/support Technical enquiries email: [email protected], tel: +508 339 3000 1 QHS40-6201021524_D01_21/04/08 Q-ClassConverters Murata Power Solutions QHS40-025 Model Parameter Conditions Input Input Voltage (Vin) Reflected Ripple Current (see note 1) Input Current Inrush Transient Input Voltage Transient 100mS 10% duty cycle Undervoltage Lockout Turn-on Turn-off Over-voltage lockout Turn-off Turn-on Input-Output Resistance; input-output Operating Ambient Storage Isolation Temperature Protection Over-Temperature Min. Typ. Max. Units 36 -- 48 -- 31 31 76 75 1500 10 -40 -40 75 10 3.3 0.2 100 35 34 80 79 --- 85 125 Vdc mA p-p A A2s V Vdc Vdc Vdc Vdc Vdc Mohm °C °C -- 110 -- Deg C Measured on PCB Physical Information Dimensions 2.28”L x 1.45” W x 0.47”H (57.91 x 36.83 x 11.8 mm) MTBF(Bellcore) Calculated at 40C ambient, 100% Iomax: 1,000,000 Hrs Safety Complies with IEC/EN/CSA/UL 60950, provides basic insulation, input to output. c-UL-us (US and Canada) recognized. TUV (Bauart) approved. QHS040-025 Thermal Derating QHS040-025 Thermal Derating Vin to Vout TJQ404 case = 120ºC Parallel Airflow Direction, 45 45 40 40 35 35 30 30 Output Current [A] Output Current [A] TJQ404 case = 110ºC Parallel Airflow Direction, 25 0 LFM 20 100 LFM 15 200 LFM 300 LFM 10 25 20 0 LFM 100 LFM 15 200 LFM 300 LFM 10 400 LFM 400 LFM Poly. (100 LFM) 5 Vin to Vout Poly. (100 LFM) 5 0 0 20 30 40 50 60 70 80 20 90 30 40 50 60 70 80 90 Ambient Temperature [ºC] Ambient Temperature [ºC] www.murata-ps.com/support 2 QHS40-6201021524_D01_21/04/08 Q-ClassConverters Murata Power Solutions QHS40-025 Model x Pin Assignments Pin # 1 2 3 Description Vin (+) Enable Vin(-) Pin # 4 5 6 Description Vout(-) Sense Vo adj Pin # 7 8 Description Sense + Vo (+) Notes: 1. Input Reflected Ripple is specified when measured with the filter shown below. is ic L2 Vin 12uF 220uF, ESR<0.1 Ohms @ 100kHz 33uF, ESR<0.7 Ohms @ 100kHz DC-DC Converter RTN 2. Output Ripple and noise is specified when measured with a 10uF tantalum and a 1uF ceramic capacitor at the converter output pins. 3. Transient response is specified without a capacitor at the output of the converter. 4. The Enable signal is Logic Low. It is referenced to Vi-. The pin should be tied to Vi- if it is not used. Isink = 1mA max, Voff = 15V max. www.murata-ps.com/support 3 QHS40-6201021524_D01_21/04/08 Q-ClassConverters Murata Power Solutions QHS40-025 Model Output Ripple and Noise (Vin=48V, Io=40A, 100Mz BW) E fficiency of Q H S 40-025 90 Eff. (%) 85 80 V in=36V V in=48V V in=75V 75 70 10.0 20.0 30.0 C urrent (A ) 40.0 50.0 Output Voltage Response to Step Load (20A → 30A load step, di/dt = 1A/us, Tamb=25C, Vin=48V) Output Voltage Response to Step Load (30A → 20A load step, di/dt = 1A/us, Tamb=25C, Vin=48V) QHS40-025 Output Impedance www.murata-ps.com/support 4 QHS40-6201021524_D01_21/04/08 Q-ClassConverters Murata Power Solutions QHS40-025 Model Input Reflected Ripple (Vin=48V, Iout=50A) Startup Characteristics Vin = 48V Iout = 40A Local O/P Sensing Vin = 48V Iout = 0A Local O/P Sensing Conducted EMI Characteristic with external filter as specified www.murata-ps.com/support 5 QHS40-6201021524_D01_21/04/08 Q-ClassConverters Murata Power Solutions QHS40-025 Model QHS40-025 Trim-up and Trim-down Resistance 100000 Resistance (ohms) Rup Rdown 10000 1000 0% 2% 4% 6% 8% 10% Safety considerations The QHS series of converters are certified to IEC/EN/CSA/UL 60950. If this product is built into information technology equipment, the installation must comply with the above standard. An external input fuse (5A to 30A recommended), must be used to meet the above requirements. The output of the converter [Vo(+)/Vo(-)] is considered to remain within SELV limits when the input to the converter meets SELV or TNV-2 requirements. The converters and materials meet UL 94V-0 flammability ratings. www.murata-ps.com/support 6 QHS40-6201021524_D01_21/04/08 Murata Power Solutions Q-ClassConverters QHS40-025 Model Part Number Designations This product is subject to the following operating requirements and the Life and Safety Critical Application Sales Policy: Refer to: http://www.murata-ps.com/requirements/ Murata Power Solutions, Inc. 11 Cabot Boulevard, Mansfield, MA 02048-1151 U.S.A. ISO 9001 and 14001 REGISTERED Murata Power Solutions, Inc. makes no representation that the use of its products in the circuits described herein, or the use of other technical information contained herein, will not infringe upon existing or future patent rights. The descriptions contained herein do not imply the granting of licenses to make, use, or sell equipment constructed in accordance therewith. Specifications are subject to change without notice. © 2012 Murata Power Solutions, Inc. www.murata-ps.com/support 7 QHS40-6201021524_D01_21/04/08