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| qSI-8000E Series SI-8000E Series Full-Mold, Separate Excitation Switching Type sFeatures * * * * * * Compact full-mold package (equivalent to TO220) High efficiency: 80 to 88% Requires only 4 external components Phase correction and output voltage adjustment performed internally Built-in reference oscillator (60kHz) Built-in overcurrent and thermal protection circuits sApplications * Power supplies for telecommunication equipment * Onboard local power supplies sLineup Part Number VO(V) IO(A) SI-8050E 5.0 SI-8090E 9.0 0.6 SI-8120E 12.0 sAbsolute Maximum Ratings Parameter DC Input Voltage Power Dissipation Junction Temperature Storage Temperature SW Terminal Applied Reverse Voltage Thermal Resistance(junction to case) Thermal Resistance(junction to ambient air) Symbol VIN PD1 PD2 Tj Tstg VSW Rth(j-c) Rth(j-a) Ratings 43 14(With infinite heatsink) 1.5(Without heatsink, stand-alone operation) +125 -40 to +125 -1 7.0 66.7 Unit V W W C C V C/W C/W sRecommended Operating Conditions Parameter DC Input Voltage Range Output Current Range Operating Junction Temperature Range Operating Temperature Range Symbol SI-8050E VIN IO Tjop Top 7 to 40 Ratings SI-8090E 11 to 40 0 to 0.6 -30 to +125 -30 to +125 SI-8120E 14 to 40 V A C C Unit 76 qSI-8000E Series sElectrical Characteristics Ratings Parameter Symbol min. Output Voltage Efficiency Switching Frequency Line Regulation Load Regulation Temperature Coefficient of Output Voltage Ripple Rejection Overcurrent Protection Starting Current VO Conditions Conditions f Conditions VOLINE Conditions VOLOAD Conditions VO/Ta RREJ Conditions IS1 Conditions 0.61 VIN=10V 4.80 SI-8050E typ. 5.00 80 VIN=20V, IO=0.3A 60 VIN=20V, IO=0.3A 80 30 0.5 45 f=100 to 120HZ 0.61 VIN=14V 100 40 VIN=10 to 30V, IO=0.3A VIN=20V, IO=0.1 to 0.4A max. 5.20 min. 8.64 SI-8090E typ. 9.00 86 VIN=21V, IO=0.3A 60 VIN=21V, IO=0.3A 90 50 1.0 45 f=100 to 120HZ 0.61 VIN=17V 120 80 VIN=14 to 30V, IO=0.3A VIN=21V, IO=0.1 to 0.4A max. 9.36 min. 11.52 SI-8120E typ. 12.00 88 VIN=24V, IO=0.3A 60 VIN=24V, IO=0.3A 100 70 1.5 45 f=100 to 120HZ 130 95 max. 12.48 (Ta=25C) Unit V % kHZ mV mV mV/C dB A VIN=20V, IO=0.3A VIN=21V, IO=0.3A VIN=24V, IO=0.3A VIN=17 to 30V, IO=0.3A VIN=24V, IO=0.1 to 0.4A sOutline Drawing 3.20.2 0.5 10.00.2 4.2 0.2 2.8 0.2 (unit: mm) 4.00.2 7.90.2 Part Number Lot Number 16.90.3 (17.9) 2.60.1 (2.0) Plastic Mold Package Type Flammability: UL94V-0 Weight: Approx. 2.3g q w e r t VIN SWOUT GND VOS N.C 0.95 0.15 +0.2 0.85 -0.1 (4.6) 0.45 -0.1 P1.70.7x4=6.80.7 +0.2 3.90.7 (4.3) 8.20.7 12345 Forming No. 1101 (8.0) 5.00.6 77 qSI-8000E Series sBlock Diagram sStandard External Circuit VIN 1 OCP Reg. OSC Reset Drive Comp. TSD 2 SWOUT 5V : 200H 9V,12V: 300H VIN 2 VIN SWOUT L1 VO 1 + C1 100F SI-8000E VOS GND 3 NC 5 4 D1 AK06 (Sanken) + C2 330F Amp. VREF 3 GND 5 N.C 4 VOS GND GND sTa-PD Characteristics PD=VO*IO 15 100 -1 -VF*IO 1- VO VIN Infinite heatsink With Silicon Grease Heatsink: Aluminum Power Dissipation PD (W) 10 10 0x 10 The efficiency depends on the input voltage and the output current. Thus, obtain the value from the efficiency graph on page 79 and substitute the percentage in the formula above. (2 .3 20 5 75 x7 0x 20 0x 2m 5x 0x 2m m 2m m (5 .2 C/ m W (7. ) ) Without heatsink 0 -30 0 25 50 6 C /W 75 100 125 Ambient Operating Temperature Ta (C) VO : Output voltage VIN : Input voltage IO : Output current x : Efficiency (%) VF : Diode forward voltage 0.4V(AK06) Thermal design for D1 must be considered separately. C /W ) sSelecting External Components 1. Inductor L1 1) It must be suited for switching regulators. Do not use inductors as noise filters as they generate excessive heat. 2) It must have the appropriate inductance value. If the inductance is too small (150H or lower), abnormal oscillation may occur causing operation problems in the overcurrent protection circuit within the rated current range. 3) The rated current must be satisfied. If the rated current is exceeded, magnetic saturation leads to overcurrent. 2. Capacitors C1 and C2 1) They must satisfy the withstand voltage and allowable ripple current. Exceeding the ratings of these capacitors or using them without derating shortens their service lives and may also cause abnormal oscillation of the IC. 2) C2 must be a low-impedance type capacitor. A low-impedance type capacitor is recommended for C2 to ensure minimum ripple voltage and stable switching operation. 3. Diode D1 The Sanken AK06 diode is recommended for D1. If you intended to use an equivalent diode, be sure to use a Schottky Barrier diode and make sure that the reverse voltage applied to terminal 2 of the IC does not exceed the value (-1V) given in the absolute maximum ratings. If you use a fast recovery diode or any other diode, application of a reverse voltage generated from the recovery or ON voltage of the diode may damage the IC. Application Variable output voltage Output voltage can be adjusted in the same way as SI-8000S in page 85. 78 qSI-8000E Series sTypical Characteristics Efficiency Characteristics(SI-8050E) 100 90 (Ta=25C) Rise Characteristics(SI-8050E) 6 (Ta=25C) Load Regulation(SI-8050E) 5.2 (Ta=25C) 5 0.1A Output Voltage VO (V) Efficiency (%) 80 70 60 50 40 0 0 N= VI 0V 1 0V 2 V 30 V 40 7V 4 0.6 A 0.3A Output Voltage VO (V) 5.1 0A IO= VIN=40V 5.0 20V 10V 7V 4.9 3 2 1 0.1 0.2 0.3 0.4 0.5 0.6 0 0 2 4 6 8 10 4.8 0 0.1 0.2 0.3 0.4 0.5 0.6 Output Current IO (A) Input Voltage VIN (V) Output Current IO (V) Overcurrent Protection Characteristics(SI-8050E) 6 (Ta=25C) Temperature Characteristics(SI-8050E) 100 (VIN=20V, IO=0.3A) 5.3 5.2 Thermal Protection Characteristics(SI-8050E) 6 VIN=20V, IO=20mA Efficiency (%) 5 90 Output Voltage VO (V) Output Voltage VO (V) 80 70 60 50 40 0 0 VO 5.1 5.0 4.9 4.8 4.7 0 150 4 Output Voltage VO (V) 5 20V 4 Frequency f (kHz) VIN 40 3 =7 V 3 V f 2 2 1 1 0 0 0 0.5 1.0 1.5 2.0 0 50 100 0 50 100 150 200 Output Current IO (V) Ambient Temperature Ta (C) Case Temperature TC (C) Note on Thermal Protection: The thermal protection circuit is intended for protection against heat during instantaneous shortcircuiting. Its operation is not guaranteed for shortcircuiting over extended periods of time. 79 |
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