SI-8000JD Series SI-8000JD Series Surface-Mount, Separate Excitation Switching Type Features * * * * * * 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 Applications * Power supplies for telecommunication equipment * Onboard local power supplies, etc. Lineup Part Namber SI-8033JD SI-8050JD SI-8090JD VO(V) 3.3 5.0 9.0 IO(A) 1.5 Absolute Maximum Ratings Parameter Symbol Ratings Unit V DC Input Voltage VIN 43 Output Current IO 1.5 A Power Dissipation* PD 3 W C Junction Temperature Tj +125 Storage Temperature Tstg -40 to +125 C Rth(j-c) 3 C/W Rth(j-a) 33.3 C/W SI-8033JD SI-8050JD Thermal Resistance (Junction to Case) Thermal Resistance (Junction to Ambient Air) Conditions Glass-epoxy board mounting 40 x 40 mm (copper area 100%) Glass-epoxy board mounting 40 x 40 mm (copper area 100%) *: Limited by thermal protection circuit Recommended Operating Conditions Parameter DC Input Voltage Range DC Output Current Range* Ratings Symbol Unit VIN1 5.3 to 6.3 7 to 8 11 to 12 VIN2 6.3 to 40 8 to 40 12 to 40 V IO 0 to 1.5 A Operating Junction Temperature Range Tjop -30 to +125 C Operating Temperature Range* Top -30 to +125 C *: Limited by Ta-PD characteristics Conditions SI-8090JD IO=0 to 1A IO=0 to 1.5A VINVO+3V SI-8000JD Series Electrical Characteristics (Ta=25C) Ratings Parameter Symbol VO Output Voltage SI-8033JD min. typ. max. min. typ. max. 3.234 3.30 3.366 4.90 5.00 5.10 8.82 9.00 9.18 VIN=15V, IO=0.5A Conditions Overcurrent Protection IS1 Starting Current % 125 125 125 VIN=15V, IO=0.5A VIN=20V, IO=0.5A VIN=21V, IO=0.5A 40 50 80 VIN=8 to 30V, IO=0.5A 10 100 VIN=10 to 30V, IO=0.5A 30 10 VIN=15V, IO=0.2 to 0.8A VO/Ta Temperature Coefficient of Output Voltage Pin 86 VIN=21V, IO=0.5A VOLOAD Load Regulation ON/OFF* 82 VIN=20V, IO=0.5A 25 0.5 40 120 10 0.5 40 1.0 VIN=20V A VIN=21V Low Level Voltage VSSL 0.5 0.5 0.5 V Low-State ISSL 100 100 100 Output Current Conditions A VSSL=0V Iq Conditions Quiescent Circuit Current 7 7 7 VIN=15V, Io=0A VIN=20V, Io=0A VIN=21V, Io=0A Iq(oFF) Conditions 200 200 VIN=15V, VON/OFF=0.3V mA 200 VIN=20V, VON/OFF=0.3V *: 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. VIN=21V, VON/OFF=0.3V SI-8000JD SI-8000JD 5 ON/OFF 5 ON/OFF 5 ON/OFF C3 Soft Start C3 Soft Start +VOUT. ON/OFF External Dimensions (Unit : mm) 0.2 10.0 Case Temperature Measurement Point 0.2 1.2 1.3 +0.10 -0.05 (2xR0.45) 0.1 0.2 4.9 (R0.3) 2.54 0.3 0.2 2.4 (R0.3) 2.0 (0.75) 0.2 4.9 0.10 0.88 0.3 0.15 0.10 (3) (3) 15.30 0.3 15.3 9.2 0.2 (6.8) (3) 0.2 (4.6) 3-R0.3 0.2 (4.4) 0.2 4.5 (1.75) (0.40) (8.0) 9.2 0.2 9.90 (15) 1.5 Dp: 0~6 (0.5) 0.1 0.1 0.25 0.8 0.25 (1.7 ) ) 1 2 3 4 2-R0.3 0.02 10.0 0.25 (1.7 ) 0.8 0.25 (1.7 ) Pin Arrangement q VIN w SWOUT e GND r VOS t ON/OFF 5 (3) (3) A SI-8000JD VOUT. ON/OFF (1.7 mV mV/C 1.6 VIN=15V mV VIN=21V, IO=0.2 to 0.8A 1.6 Conditions kHZ VIN=15 to 30V, IO=0.5A VIN=20V, IO=0.2 to 0.8A 1.6 V VIN=21V, IO=0.5A 77 VOLINE Conditions VIN=20V, IO=0.5A VIN=15V, IO=0.5A f Conditions Line Regulation Unit max. Conditions Switching Frequency SI-8090JD typ. Conditions Efficiency SI-8050JD min. Plastic Mold Package Type Flammability: 94V-0 Weight: Approx. 1.48g SI-8000JD Series Standard External Circuit Block Diagram L1 1 SW OUT VIN PReg. 1 VIN VIN 2 SI-8000JD OCP 5 ON/OFF + C1 ON/OFF Soft Start SW Latch & Drive Reset VS 2 VOUT 4 + ON/OFF GND 5 3 Di C2 C3 OSC GND GND + - TSD Comp. Error Amp. 4 + - C1 C2 C3 L1 Di VREF GND 3 : : : : : 50V/220F 25V/470F 10V/0.47F (when using soft-start function) 100H SFPB-66 (Sanken) Example of Pattern on PC Board Recommended Pattern Recommended Land Pattern 110.2 S C3 C2 C1 SI-8000JD 6.80.1 90.2 GND 3.70.05 Vins 90.1 Di Vout 40.1 Vos Vin 10.05 SW 1.70.1 Di SI-800 0 JD Unit : mm Thermal Resistance (junction to ambient air) j-a (C/W ) * 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) 50 Power Dissipation Pd (W) 55 With glass epoxy board measuring 40 x 40 mm 45 40 35 30 0 200 400 600 800 1000 1200 Copper area (mm2) 1400 1600 1800 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 0 0.2 0.4 0.6 0.8 1.0 Output Current IO (A) 1.2 1.4 1.6 SI-8000JD Series Ta-PD Characteristics 3.5 Power Dissipation PD (W) 3 PD=VO * IO Copper Area 40x40 mm ( j-a : 33.3C/W) 20x40 mm ( j-a : 37C/W) 2.5 20x20 mm ( j-a :44C/W) 2 10x10 mm ( j-a : 53C/W) 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. 1.5 1 0.5 0 -25 0 100 VO -1 -VF * IO 1- VIN 25 50 75 100 125 Ambient Temperature Ta (C) 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. Selecting 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. SI-8000JD Series Typical Characteristics Efficiency Characteristics (SI-8033JD) .3V =6 VI N 80 V 30 40 60 50 8V = 70 2V 90 V 20 5V (Ta=25C) 100 VIN 40V 30V 60 50 =1 80 Efficiency (%) 1 70 (SI-8090JD) (Ta=25C) 90 Efficiency (%) VIN V 80 Efficiency (%) (SI-8050JD) (Ta=25C) 90 40 V 30V 21V 70 60 40 50 40 30 1.0 1.2 1.4 30 0 1.6 0.2 0.4 Output Voltage Characteristics (SI-8033JD) 40 0 1.6 2 1 4 6 8 10 12 14 16 18 A A 3 1.5 2 0 20 5.06 Output Voltage VO (V) 5.08 3.36 3.34 30V 3.32 15V VIN=40V 3.30 6.3V 3.28 3.26 0 2 0.6 0.8 1.0 1.2 Output Current IO (A) 10 12 14 16 18 6 4 0 20 1.4 1.6 1.4 1.6 0 2 6 8 10 12 14 16 18 20 (SI-8090JD) (Ta=25C) (Ta=25C) 9.20 9.15 VIN=40V 30V 20V 8V 4.96 4.90 0 4 Input Voltage VIN (V) 4.98 4.92 0.4 8 5.00 3.22 0.2 6 5.02 4.94 3.20 0 4 5.04 3.24 1.2 2 5.10 3.38 1.0 8 (SI-8050JD) (Ta=25C) 0.8 0.5A Input Voltage VIN (V) Load Regulation (SI-8033JD) 3.40 0.6 (Ta=25C) 10 Output Voltage VO (V) 2 0.4 (SI-8090JD) 1 0 0.2 Output Current IO (A) 4 IO=0 Output Voltage VO (V) 1.5A IO=0A Output Voltage VO (V) 1.4 0.5A Input Voltage VIN (V) Output Voltage VO (V) 1.2 12 5 0.5A 0 1.0 (Load=C.R Ta=25C) 6 4 3 0.8 (SI-8050JD) (Load=C.R Ta=25C) 5 0.6 Output Current IO (A) A 0.8 1.5 0.6 Output Current IO (A) 0A 0.4 IO= 0.2 Output Voltage VO (V) 20 0 9.10 9.05 VIN=40V 30V 21V 9.00 12V 8.95 8.90 8.85 0.2 0.4 0.6 0.8 1.0 1.2 Output Current IO (A) 1.4 1.6 8.80 0 0.2 0.4 0.6 0.8 1.0 1.2 Output Current IO (A) 1.4 1.6 SI-8000JD Series Overcurrent Protection Characteristics (SI-8033JD) VIN=8V 15V 30V 40V 2 1 10 4 VIN=10V 20V 30V 40V 3 2 1 0 0.5 1.0 1.5 2.0 2.5 0 3.0 0 0.5 1.0 1.5 2.0 2.5 0 3.0 2.0 2 TSD ON 1 6 4 TSD OFF TSD ON 2 Ambient Temperature Ta (C) 3.0 8 0 50 200 2.5 VIN=21V, IO=0A Output Voltage VO (V) Output Voltage VO (V) 3 175 1.5 (SI-8090JD) 8 150 1.0 VIN=20V, IO=0A 4 125 0.5 10 VIN=15V, IO=0A 100 0 Output Current IO (A) 10 75 VIN=40V 30V 21V 14V 4 (SI-8050JD) 5 0 50 6 Output Current IO (A) Thermal Protection Characteristics (SI-8033JD) TSD OFF 8 2 Output Current IO (A) Output Voltage VO (V) Output Voltage VO (V) 3 (Ta=25C) 12 5 4 0 (SI-8090JD) (Ta=25C) 6 Output Voltage VO (V) Output Voltage VO (V) (SI-8050JD) (Ta=25C) 5 75 100 125 150 175 6 TSD OFF 2 0 50 200 TSD ON 4 Ambient Temperature Ta (C) 75 100 125 150 175 200 Ambient Temperature Ta (C) Freq 130 3.34 120 3.32 VO 110 3.30 100 3.28 90 3.26 80 3.24 70 3.22 60 -40 -20 0 20 40 60 3.20 80 100 120 140 Ambient Temperature Ta (C) Output Voltage VO (V) 3.36 5.08 VIN=20V, IO=0.5A 140 5.06 Freq 130 5.04 120 5.02 VO 110 5.00 100 4.98 90 4.96 80 4.94 70 4.92 60 -40 -20 0 20 40 60 4.90 80 100 120 140 Ambient Temperature Ta (C) (SI-8090JD) 150 9.10 VIN=21V, IO=0.5A 140 9.08 Freq 130 9.06 120 9.04 110 9.02 VO 100 9.00 90 8.98 80 8.96 70 8.94 60 -40 -20 0 20 40 60 8.92 80 100 120 140 Ambient Temperature Ta (C) Output Voltage VO (V) VIN=15V, IO=0.5A 140 (SI-8050JD) 150 Efficiency (%) Operating Frequency (kHz) 3.38 Output Voltage VO (V) 150 Temperature Characteristics (SI-8033JD) Efficiency (%) Operating Frequency (kHz) Efficiency (%) Operating Frequency (kHz) [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.