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| qSI-8000JD Series SI-8000JD Series Surface-Mount, Separate Excitation Switching Type sFeatures Surface-mount package (TO263-5) Output current: 1.5 A High efficiency: 77 to 86% Requires only 4 external components Phase correction and output voltage adjustment performed internally Choke coil size can be reduced through the employment of high frequency (125 kHz) design * Built-in foldback overcurrent protection, thermal protection circuit * Output ON/OFF possible (OFF state current consumption: 200A max) * Soft start possible via ON/OFF pin * * * * * * sApplications * Power supplies for telecommunication equipment * Onboard local power supplies, etc. sLineup Part Namber VO(V) IO(A) SI-8033JD 3.3 SI-8050JD 5.0 1.5 SI-8090JD 9.0 sAbsolute Maximum Ratings Parameter DC Input Voltage Output Current Power Dissipation* Junction Temperature Storage Temperature Thermal Resistance (Junction to Case) Thermal Resistance (Junction to Ambient Air) *: Limited by thermal protection circuit Symbol VIN IO PD Tj Tstg Rth(j-c) Rth(j-a) Ratings 43 1.5 3 +125 -40 to +125 3 33.3 Unit V A W C C C/W C/W Glass-epoxy board mounting 40 x 40 mm (copper area 100%) Glass-epoxy board mounting 40 x 40 mm (copper area 100%) Conditions sRecommended Operating Conditions Parameter DC Input Voltage Range DC Output Current Range* Operating Junction Temperature Range Operating Temperature Range* *: Limited by Ta-PD characteristics Symbol SI-8033JD VIN1 VIN2 IO Tjop Top 5.3 to 6.3 6.3 to 40 Ratings SI-8050JD 7 to 8 8 to 40 0 to 1.5 -30 to +125 -30 to +125 SI-8090JD 11 to 12 12 to 40 V A C C IO=0 to 1A IO=0 to 1.5A VINVO+3V Unit Conditions qSI-8000JD Series sElectrical Characteristics Ratings Parameter Symbol min. Output Voltage Efficiency Switching Frequency Line Regulation Load Regulation Temperature Coefficient of Output Voltage Overcurrent Protection Starting Current ON/OFF* Pin Low Level Voltage Low-State Output Current VO Conditions 3.234 SI-8033JD typ. 3.30 77 VIN=15V, IO=0.5A 125 VIN=15V, IO=0.5A 25 10 0.5 1.6 VIN=15V 0.5 100 VSSL=0V 7 VIN=15V, Io=0A 200 VIN=15V, VON/OFF=0.3V 7 VIN=20V, Io=0A 200 VIN=20V, VON/OFF=0.3V 7 VIN=21V, Io=0A 200 VIN=21V, VON/OFF=0.3V 1.6 VIN=20V 0.5 100 80 30 VIN=8 to 30V, IO=0.5A VIN=15V, IO=0.2 to 0.8A max. 3.366 min. 4.90 SI-8050JD typ. 5.00 82 VIN=20V, IO=0.5A 125 VIN=20V, IO=0.5A 40 10 0.5 1.6 VIN=21V 0.5 100 100 40 VIN=10 to 30V, IO=0.5A VIN=20V, IO=0.2 to 0.8A max. 5.10 min. 8.82 SI-8090JD typ. 9.00 86 VIN=21V, IO=0.5A 125 VIN=21V, IO=0.5A 50 10 1.0 120 40 max. 9.18 (Ta=25C) Unit V % kHZ mV mV mV/C A V VIN=15V, IO=0.5A VIN=20V, IO=0.5A VIN=21V, IO=0.5A Conditions f Conditions VOLINE Conditions VOLOAD Conditions VO/Ta IS1 Conditions VSSL ISSL Conditions Iq Conditions Iq(oFF) Conditions VIN=15 to 30V, IO=0.5A VIN=21V, IO=0.2 to 0.8A A mA Quiescent Circuit Current A *: Pin 5 is the ON/OFF pin. Connecting a capacitor to this pin enables a soft start at power-on. By using this pin, the output can also be turned on or off. By setting the voltage of this pin to VSSL or lower, the output is stopped. Driving a transistor with an open collector can perform switching of the potential of the ON/OFF pin. When using both the soft-start and ON/OFF functions together, the discharge current from C3 flows to the ON/OFF control transistor, so ensure that this current is limited for protection. The ON/OFF pin is pulled up to the power supply in the IC, so no external voltage can be applied. If this pin is not used, leave it open. SI-8000JD SI-8000JD SI-8000JD 5 ON/OFF 5 ON/OFF C3 5 ON/OFF C3 VOUT. ON/OFF Soft Start Soft Start +VOUT. ON/OFF sExternal Dimensions Case Temperature Measurement Point (0.40) 1.2 (Unit : mm) 10.0 0.2 9.90 (15) 0.2 0.2 (8.0) 4.5 3-R0.3 0.2 (4.4) 1.3 +0.10 -0.05 (1.75) (4.6) (6.8) 0.2 9.2 0.3 15.3 (3) 0.1 0.10 (3) 15.30 0.15 0.3 9.2 0.2 1.5 Dp: 0.2 (3) (2xR0.45) 2.4 (R0.3) 0.3 0.2 0.88 0.10 (R0.3) 0~6 0.1 (0.5) (1.7 0.25 ) 1 2 3 4 5 0.8 0.25 (1.7 ) 0.1 (1.7 0.25 ) 0.8 0.25 (1.7 ) Pin Arrangement q VIN w SWOUT e GND r VOS t ON/OFF Plastic Mold Package Type Flammability: 94V-0 Weight: Approx. 1.48g 0.2 2.0 (0.75) 4.9 (3) 2-R0.3 10.0 0.02 (3) 2.54 4.9 0.2 qSI-8000JD Series sBlock Diagram sStandard External Circuit L1 1 VIN PReg. OCP SW OUT VIN 1 VIN SW 2 4 + Di VOUT 2 SI-8000JD C1 + VS 5 ON/OFF ON/OFF Soft Start Reset OSC + - Latch & Drive GND ON/OFF GND 5 3 C3 C2 GND Comp. Error Amp. + - TSD 4 VREF GND 3 C1 C2 C3 L1 Di : : : : : 50V/220F 25V/470F 10V/0.47F (when using soft-start function) 100H SFPB-66 (Sanken) sExample of Pattern on PC Board Recommended Pattern Recommended Land Pattern 110.2 GND SI-8000JD 90.2 C1 C2 Vins 3.70.05 90.1 Di 40.1 Vos Vout Vin SW 1.70.1 Di 10.05 SI-800 0 JD C3 S Unit : mm * For the optimum operating conditions, use one-point GND wiring centering on pin 3, and place each component as closely as possible. Area of Copper on Glass Epoxy Board vs. Thermal Resistance (Junction to Ambient Air) (Typical Value) Output Current vs. Power Dissipation (Typical) 2.6 2.4 2.2 2.0 1.8 1.6 1.4 1.2 1.0 0.8 0.6 0.4 0.2 0 40V 30V 20V VIN 8V Thermal Resistance (junction to ambient air) j-a (C/W ) 55 50 45 40 35 30 0 With glass epoxy board measuring 40 x 40 mm 200 400 600 800 1000 1200 1400 1600 1800 Copper area (mm2) Power Dissipation Pd (W) 0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 6.80.1 1.6 Output Current IO (A) qSI-8000JD Series sTa-PD Characteristics 3.5 3 Copper Area 40x40 mm ( j-a : 33.3C/W) 20x40 mm ( j-a : 37C/W) 20x20 mm ( j-a :44C/W) 10x10 mm ( j-a : 53C/W) PD=VO * IO 100 VO -1 -VF * IO 1- VIN Power Dissipation PD (W) 2.5 2 1.5 1 0.5 The efficiency depends on the input voltage and the output current. Therefore, obtain the value from the efficiency characteristic curve and substitute the percentage in the formula above. VO : Output Voltage VIN: Input Voltage IO : Output Current : Efficiency (%) VF : D1 forward voltage 0.4V(IO=2A)(SFPB-66) Thermal design for D1 must be done separately. 0 -25 0 25 50 75 100 125 Ambient Temperature Ta (C) sSelecting External Components 1. Inductor L1 q It must be suitable for a switching regulator. Do not use inductors such as for noise filters, because they generate excessive heat. w The rated current must be satisfied. If the rated current is exceeded, magnetic saturation leads to overcurrent. 2. Capacitor C1, C2 q The breakdown voltage and allowable ripple current must be satisfied. Exceeding the ratings of these capacitors or using them without derating shortens their service lives and may also cause abnormal oscillation of the IC. w Use a low-impedance type capacitor for C2. C2 must be a low-impedance type capacitor to ensure reduced ripple voltage and a stable switching operation. e Do not use a capacitor that has an extremely small ESR (equivalent series resistance) such as an OS capacitor or tantalum capacitor. r C3 is a capacitor for soft start. When not using soft start, leave pin 5 open. It is pulled up inside the IC. 3. Diode D1 The Sanken SFPB-66 diode is recommended for D1. If you intended to use an equivalent diode, be sure to use a Schottkey Barrier diode. If you use a fast recovery diode or any other diode, supplying 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. qSI-8000JD Series sTypical Characteristics Efficiency Characteristics (SI-8033JD) 90 80 (Ta=25C) 90 (SI-8050JD) (Ta=25C) 100 (SI-8090JD) (Ta=25C) VIN 70 .3V =6 80 VI N = 8V 90 V 1 5V V 20 40V VIN =1 2V Efficiency (%) Efficiency (%) 30 Efficiency (%) 70 30V 80 40 V 40 21V V 30V 60 50 40 30 20 0 60 70 50 60 40 50 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 30 0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 40 0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 Output Current IO (A) Output Current IO (A) Output Current IO (A) Output Voltage Characteristics (SI-8033JD) 5 (Load=C.R Ta=25C) (SI-8050JD) 6 (Load=C.R Ta=25C) 12 (SI-8090JD) (Ta=25C) 4 5 0.5A 0.5A 10 Output Voltage VO (V) Output Voltage VO (V) 0.5A 4 A IO=0 Output Voltage VO (V) 8 A IO=0A 1.5A 2 4 1 1 2 0 0 2 4 6 8 10 12 14 16 18 20 0 0 2 4 6 8 10 12 14 16 18 20 0 IO= 2 0A 1.5 3 1.5 3 A 6 0 2 4 6 8 10 12 14 16 18 20 Input Voltage VIN (V) Input Voltage VIN (V) Input Voltage VIN (V) Load Regulation (SI-8033JD) 3.40 3.38 3.36 (Ta=25C) 5.10 5.08 5.06 (SI-8050JD) (Ta=25C) 9.20 9.15 (SI-8090JD) (Ta=25C) Output Voltage VO (V) Output Voltage VO (V) 3.34 30V 3.32 3.30 3.28 3.26 3.24 3.22 3.20 0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 6.3V VIN=40V 15V 5.04 5.02 5.00 4.98 4.96 4.94 4.92 4.90 0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 8V VIN=40V 30V 20V Output Voltage VO (V) 9.10 9.05 9.00 12V 8.95 8.90 8.85 8.80 0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 VIN=40V 30V 21V Output Current IO (A) Output Current IO (A) Output Current IO (A) qSI-8000JD Series Overcurrent Protection Characteristics (SI-8033JD) 5 (Ta=25C) 6 (SI-8050JD) (Ta=25C) 12 (SI-8090JD) (Ta=25C) Output Voltage VO (V) Output Voltage VO (V) 4 VIN=10V 20V 30V 40V Output Voltage VO (V) 4 5 10 8 3 3 6 VIN=40V 30V 21V 14V 2 VIN=8V 15V 30V 40V 2 4 1 1 2 0 0 0.5 1.0 1.5 2.0 2.5 3.0 0 0 0.5 1.0 1.5 2.0 2.5 3.0 0 0 0.5 1.0 1.5 2.0 2.5 3.0 Output Current IO (A) Output Current IO (A) Output Current IO (A) Thermal Protection Characteristics (SI-8033JD) 5 VIN=15V, IO=0A 4 8 10 (SI-8050JD) 10 VIN=20V, IO=0A (SI-8090JD) VIN=21V, IO=0A 8 Output Voltage VO (V) Output Voltage VO (V) 3 6 Output Voltage VO (V) 6 TSD OFF 4 TSD ON 2 TSD OFF 1 TSD ON 4 TSD OFF 2 TSD ON 2 0 50 75 100 125 150 175 200 0 50 75 100 125 150 175 200 0 50 75 100 125 150 175 200 Ambient Temperature Ta (C) Ambient Temperature Ta (C) Ambient Temperature Ta (C) [Note on Thermal Protection] The thermal protection circuit is intended for protection against heat during instantaneous short-circuiting. Its operation is not guaranteed for continuous heating conditions such as short-circuiting over extended periods of time. Temperature Characteristics (SI-8033JD) VIN=15V, IO=0.5A 140 130 120 110 100 90 80 70 60 -40 -20 0 20 40 60 3.24 3.22 3.20 80 100 120 140 VO Freq 3.36 Efficiency (%) Operating Frequency (kHz) Efficiency (%) Operating Frequency (kHz) 150 3.38 150 VIN=20V, IO=0.5A 140 130 120 110 100 90 80 70 60 -40 -20 0 20 40 60 VO Freq 5.08 5.06 Efficiency (%) Operating Frequency (kHz) (SI-8050JD) 150 140 130 120 110 100 90 80 70 (SI-8090JD) VIN=21V, IO=0.5A 9.10 9.08 Freq Output Voltage VO (V) Output Voltage VO (V) 3.32 3.30 3.28 3.26 5.02 5.00 4.98 4.96 4.94 4.92 4.90 80 100 120 140 9.04 9.02 VO 9.00 8.98 8.96 8.94 0 20 40 60 8.92 80 100 120 140 60 -40 -20 Ambient Temperature Ta (C) Ambient Temperature Ta (C) Ambient Temperature Ta (C) Output Voltage VO (V) 3.34 5.04 9.06 |
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