RDD08U SERIES DC - DC CONVERTER 6.6 ~ 8W SINGLE & DUAL OUTPUT FEATURES ‧EFFICIENCY UP TO 85% ‧2:1 WIDE INPUT RANGE ‧I/O ISOLATION ‧INPUT Pi FILTER ‧SHORT CIRCUIT PROTECTION ‧HIGH PERFORMANCE ‧3 YEARS WARRANTY R H a UL 60950-1 EN 60950-1 MODEL LIST MODEL NO. INPUT VOLTAGE INPUT EFF. EFF. CAPACITOR OUTPUT OUTPUT OUTPUT LOAD CURRENT WATTAGE VOLTAGE CURRENT (min.) (typ.) (max.) (typ.) (max.) Single Output Models RDD08 - 03S1U 9~18 VDC 0.69A 0.97A 6.6 WATTS +3.3 VDC 2000 mA 78% 80% 3300μF RDD08 - 05S1U 9~18 VDC 0.77A 1.07A 7.5 WATTS + 5 VDC 1500 mA 80% 82% 2200μF RDD08 - 12S1U 9~18 VDC 0.79A 1.11A 8 WATTS + 12 VDC 670 mA 83% 85% 470μF RDD08 - 15S1U 9~18 VDC 0.80A 1.11A 8 WATTS + 15 VDC 540 mA 83% 85% 330μF RDD08 - 03S2U 18~36 VDC 0.35A 0.48A 6.6 WATTS +3.3 VDC 2000 mA 78% 80% 3300μF RDD08 - 05S2U 18~36 VDC 0.38A 0.53A 7.5 WATTS + 5 VDC 1500 mA 81% 83% 2200μF RDD08 - 12S2U 18~36 VDC 0.40A 0.55A 8 WATTS + 12 VDC 670 mA 83% 85% 470μF RDD08 - 15S2U 18~36 VDC 0.40A 0.55A 8 WATTS + 15 VDC 540 mA 83% 85% 330μF RDD08 - 03S3U 35~75 VDC 0.17A 0.25A 6.6 WATTS +3.3 VDC 2000 mA 78% 80% 3300μF RDD08 - 05S3U 35~75 VDC 0.19A 0.27A 7.5 WATTS + 5 VDC 1500 mA 81% 83% 2200μF RDD08 - 12S3U 35~75 VDC 0.20A 0.28A 8 WATTS + 12 VDC 670 mA 83% 85% 470μF RDD08 - 15S3U 35~75 VDC 0.20A 0.28A 8 WATTS + 15 VDC 540 mA 83% 85% 330μF Dual Output Models RDD08 - 05D1U 9~18 VDC 0.82A 1.14A 8 WATTS ± 5 VDC ± 800 mA 80% 82% ± 1000μF RDD08 - 12D1U 9~18 VDC 0.81A 1.12A 8 WATTS ± 12 VDC ± 340 mA 83% 85% ± 180μF RDD08 - 15D1U 9~18 VDC 0.81A 1.12A 8 WATTS ± 15 VDC ± 270 mA 83% 85% ± 100μF RDD08 - 05D2U 18~36 VDC 0.41A 0.56A 8 WATTS ± 5 VDC ± 800 mA 81% 83% ± 1000μF RDD08 - 12D2U 18~36 VDC 0.40A 0.56A 8 WATTS ± 12 VDC ± 340 mA 83% 85% ± 180μF RDD08 - 15D2U 18~36 VDC 0.40A 0.56A 8 WATTS ± 15 VDC ± 270 mA 83% 85% ± 100μF RDD08 - 05D3U 35~75 VDC 0.20A 0.29A 8 WATTS ± 5 VDC ± 800 mA 81% 83% ± 1000μF RDD08 - 12D3U 35~75 VDC 0.20A 0.29A 8 WATTS ± 12 VDC ± 340 mA 83% 85% ± 180μF RDD08 - 15D3U 35~75 VDC 0.20A 0.29A 8 WATTS ± 15 VDC ± 270 mA 83% 85% ± 100μF www.chinfa.com 2014.07.29 [email protected] P1 RDD08U SERIES SINGLE & DUAL OUTPUT SPECIFICATION o All Specifications Typical At Nominal Line, Full Load, 25 C Unless Otherwise Noticed GENERAL Characteristics Conditions Switching frequency Vi nom, Io nom Isolation voltage Input / Output Isolation resistance Input / Output, @ 500VDC Isolation capacitance 100KHz / 1V Ambient temperature Operating at Vi nom, Io nom Case temperature Operating at Vi nom, Io nom Derating Vi nom Storage temperature Non operational Relative humidity Vi nom, Io nom Temperature coefficient Vi nom, Io min min. typ. max. 280 unit KHz 1,500 VDC 100 MΩ 1,000 PF + 71 o + 100 o -40 +100 o 20 95 % RH ± 0.02 % / oC -40 C C See derating curve Dimension mm L31.8 x W20.3 x H10.2 o MTBF Bellcore issue 6@40 C, GB Cooling Free air convection C Hours 1,309,000 INPUT SPECIFICATIONS Characteristics Input voltage range No load input current Input voltage w/o damage Startup voltage Input filter Conditions Ta min ... Ta max, Io nom Vi nom, Io = 0 Io nom Io nom min. typ. max. unit 9 12 18 VDC 18 24 36 VDC 36 48 75 VDC 30 mA 24V 25 mA 48V 20 mA 12V 20 VDC 24V 40 VDC 48V 80 VDC 12V 12V 8.7 VDC 24V 17.4 VDC 48V 31.5 VDC Pi type OUTPUT SPECIFICATIONS Characteristics Output voltage accuracy Minimum load Conditions min. Vi nom, Io nom Vi nom typ. max. unit ± 2 % single output models 0 % dual output models (each output) 10 % Line regulation Io nom, Vi min ...Vi max ± 0.5 % Load regulation Vi nom, Io 0 ...Io nom, single output models ± 0.5 % Vi nom, Io min ...Io nom, dual output models ± 1 % Cross regulation (Dual modle) Aymmetrical load 10% - 100% FL ± 5 % Startup time Vi nom, Io nom 700 ms Transient recovery time Vi nom, 1~0.5 Io nom 1 ms Ripple & noise Vi nom, Io nom, BW = 20MHz 50 mV Efficiency www.chinfa.com 2014.07.29 Vi nom, Io nom, Po / Pi Up to 85%, See model list and efficiency curve [email protected] P2 RDD08U SERIES SINGLE & DUAL OUTPUT SPECIFICATION o All Specifications Typical At Nominal Line, Full Load, 25 C Unless Otherwise Noticed CONTROL AND PROTECTION Input reversed Shunt diode built in, external fuse recommended 1A Output short circuit Current limited (Auto-recovery) Rated over load protection 110%min....140%max ON : 3....10Vdc or open circuit Remote on/off control OFF: 0....1.5Vdc or short circuit pin1 and pin2,3 APPROVALS AND STANDARD UL/cUL UL 60950-1 Recognized TUV EN 60950-1 CE EN 61204-3, EN 55022 Class A, EN 61000-4-2, EN61000-4-3, EN61000-4-4, EN61000-4-6 Vibration meet IEC 60068-2-6 (10-500 Hz, 2G, along X, Y, Z each Axis, 60 min for each Axis) PHYSICAL CHARACTERISTICS Case size 31.8 x 20.3 x 10.2 mm (1.25 x 0.8 x 0.4 inches) Case material Plastic base / Metal case Weight 18 g Potting material Silicone MECHANISM & PIN CONFIGURATION mm [inch] 31.80 [1.25] 12 3 10.2 [0.40] 9 11 16 14 15.24 [0.60] 20.30 [0.80] 23 22 6.00 [0.24] 2.54 [0.10] DIA 0.50 [0.02] BOTTOM VIEW GENERAL TOLERANCE 0.00[0.00] - 30.00[1.18] ±0.30[0.01] 30.00[1.18] - 120.00[4.72] ±0.50[0.02] PIN ASSIGNMENT GENERAL PIN NO. 1 2&3 9 11 14 16 22 & 23 SINGLE ON/OFF Vi - N. C. N. C. Vo+ Vo - Vi+ DUAL ON/OFF Vi - com Vo - Vo+ com Vi+ CIRCUIT SCHEMATIC ‧Block diagram for RDD08U series with dual output ‧Block diagram for RDD08U series with single output Vi + Vo + Rectifier Vi + Switching Device Switching Device Vo - Vi - PWM Controller ON/OFF www.chinfa.com 2014.07.29 Vo + Rectifier Opto Isolation Rectifier Vi - PWM Controller Reference & Error Amp. com Opto Isolation Vo - Reference & Error Amp. ON/OFF [email protected] P3 RDD08U SERIES SINGLE & DUAL OUTPUT RECOMMENDED CIRCUIT ‧The components used in the above figure, together with the manufacturer part numbers for these components, are as follows. ‧Recommended filter for EN55022 Class B compliance. L1 C5 Vi + C1 Vin + C1 C3 / C4 C5 L1 Vo + RDD08XXX1U 2.2 μF / 50V 4.7 μF / 50V MLCC MLCC 1nF/2KV MLCC 1nF/2KV MLCC Vo - RDD08XXX2U 2.2 μF / 50V 4.7 μF / 50V MLCC MLCC 1nF/2KV MLCC 1nF/2KV MLCC RDD08XXX3U 2.2 μF / 100V 2.2 μF / 100V MLCC MLCC 1nF/2KV MLCC 1nF/2KV MLCC 1.5mH Common Choke 1.5mH Common Choke 1.5mH Common Choke RDD08U C2 Vin - Vi C3 / C4 C2 ‧Recommended EN 55022 Class B filter circuit layout. U DERATING AND EFFICIENCY CURVE Temperature derating curve Power out [ % ] 100 Safe Operating Area 0 -40 71 100 Ambient Temperature [ oC ] Efficiency Vs Input Voltage RDD08-05S2U 84 Efficiency Vs Output Load RDD08-05S2U 85 Power out [ % ] Power out [ % ] 83 82 81 80 79 Io : Full Load 78 77 18 20 www.chinfa.com 2014.07.29 22 24 26 28 30 Input Voltage (V) 32 34 36 80 75 70 65 60 55 50 45 10 Vi : 24VDC 20 30 40 50 60 70 Output Load (%) 80 90 100 [email protected] P4