E Class Converters EHS10 – 5V Model OBSOLETE PRODUCT Model Parameter 5V Output Voltage Setpoint 4.95 – 5.05 Line/Load Regulation Max 0.1%, 0.2% Output total regulation 4.85 – 5.15 Output adjust (note 4) 90-110 Remote-sense Comp. 10% Output Ripple & Noise (note 2) Max Output Current Efficiency (48V, Full load, 25C) Typ External Capacitance Transient Response (typ) (note 3) 25% step, 1A/μs Over-voltage trip point 100 Units Vdc % Vo Vdc %Vo,nom V mVp-p 0-10 A 90% % 1,000-10,000 μF ΔVo 165 mV Ts 400 μs 5.8 – 6.4 V 13 A (latch ing) Over-current trip point (non-latching) Typ All specifications, waveforms, charts at Ta=25C, Vin=48V, 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 EHS10.C05 E Class Converters EHS10 – 5V Model Parameter Conditions Input Input Voltage (Vin) Reflected Ripple Current Inrush Transient See note (1) 100mS 10% duty cycle Undervoltage Lockout Turn-on (non-latching) Turn-off Over-voltage lockout (non-latching) Turn-off Input-Output Resistance; input-output Operating Ambient Storage Min. Typ. Max. Units 36 -- 48 10 75 -0.2 Vdc mA p-p A2s 100 V 35 34 81 Vdc Vdc Vdc Vdc Mohm °C °C Input Voltage Transient Isolation Temperature Protection Over-Temperature 32 31 77 1500 10 -40 -40 (non-latching) (Measured on PCB at TML) Physical Information Dimensions --- 90 125 130 °C 2.30”L x 0.82” W x 0.37”H (58.4 x 20.8 x 9.3 mm) Calculated at 40C ambient, (Bellcore) 1,000,000 Hrs EHS15/20 Series Demonstrated at 40C ambient with 90% confidence: 2,800,000 Hrs Complies with IEC/EN/CSA/UL 60950, provides basic insulation, input to output. c-UL-us (US and Canada) recognized, TUV certified (Bauart). MTBF Safety 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 (+) www.murata-ps.com/support 2 EHS10.C05 E Class Converters EHS10 – 5V Model EHS10-050 Thermal Derating Airflow from Vin(-) to Vin(+), Tj=120C EHS10-050 Thermal Derating Airflow from Input to Output, Tj=120C 12 12 10 8 Iout (amps dc) Iout (amps dc) 10 6 100 LFM 200 LFM 300 LFM 400 LFM 4 8 6 4 100 LFM 200 LFM 300 LFM 400 LFM 2 2 0 0 20 30 40 50 60 70 Ambient temp (deg c) 20 80 30 40 50 60 70 Ambient temp (deg c) P2 04/03 80 P2 04/03 EHS10-050 Enable with Pre-Bias EHS10-050 Efficiency vs. Output Current, 25°C 100 95 85 80 75 36V 70 65 48V Output Voltage @ 1.0 V/div., 2 ms/div. Prebias voltage = 3.0 VDC. Input Voltage 48 V Load = 0 A, Load capacitance = 2200 uF. 75V 60 55 2 3 4 5 6 7 8 9 10 11 12 EHS10-050 Trim-up and Trim-down Resistance Iout (A) 10000 Trim Up/Down Formula : 5V model 5.10 Vnom ( 100 Rup %) 1.225 % Where % Rdown ( % ) ( Vout Vnom) 100 Vnom 510 % 10.2 K 510 % 10.2 K and, Vout = Target output voltage Where % ( Vnom Vout ) 100 Vnom Resistance (Kohms Efficiency, (%) 90 Rup (5.0 V) Rdown 1000 100 10 0% 2% 4% 6% Delta (%) 8% 10% www.murata-ps.com/support 3 EHS10.C05 E Class Converters EHS10 – 5V Model EHS10-050 Startup Sequence from Vin EHS10-050 Startup Sequence from Enable Top Trace: Vout @ 2.0 V/div. Bot. Trace: Vinput @ 20 V/div. Horiz. @ 50 ms/div. Load: 10 A, 10000 uF Turn-on delay: 114 ms Top Trace: Vout @ 2.0 V/div. Bot. Trace: Venable @ 2.0 V/div. Horiz. @ 5 ms/div. Load: 10 A. 10000 uF Turn-on delay: 8.3 ms EHS10-050 Transient Response, Step down 1A/μs EHS10-050 Transient Response, Step up 1A/μs CH1: Vout AC coupled CH2 : Step up Current (1A/div) CH1: Vout AC coupled CH2 : Step down Current (1A/div) EHS10-050 Output Ripple Voltage, Io=10A EHS10-050 Input Reflected Ripple Current Input Current @ 5 mA/div., 20 us/div. (11.7 mApp) Input Voltage: 48 V, Load Current: 10 A Note: see test circuit on following page. www.murata-ps.com/support 4 EHS10.C05 E Class Converters EHS10 – 5V Model Notes: 1. Input Reflected Ripple is specified when measured with the filter shown below is ic L2 Vin 1 2u F 2 2 0 uF , E S R < 0.1 O h m s @ 1 00 k H z 33uF, E S R < 0 .7 O hm s @ 1 0 0 kH z 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 with a 470uF tantalum capacitor at the output of the converter 4. Trim resistor connection: Rtrim-up connected from Vo adj to Vo(+), Rtrim –down connected from Vo adj to Vo(-). EHS10 Enable Pin Connection Table NEGATIVE LOGIC VERSION POSITIVE LOGIC VERSION Note: ENABLE POWER SUPPLY 0V < Venable < 0.8V (internal pull-up > 50Kohms @ 5V) 2.5V < Venable < 15V (external pull-up > 1Kohms) DISABLE POWER SUPPLY 2.5V < Venable < 15V (external pull-up > 1Kohms) 0V < Venable < 0.8V (internal pull-up > 50Kohms @ 5V) Power Supply has internal pull-up resistor. Enable pin is in a valid “high” state if left open-circuit. Safety considerations The EHS 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 5 EHS10.C05 E Class Converters EHS10 – 5V 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 6 EHS10.C05