●SI-3000F Series SI-3000F Series 5-Terminal, Multi-Function, Full-Mold, Low Dropout Voltage Dropper Type ■Features • • • • Compact full-mold package (equivalent to TO220) Output current: 1.0A Low dropout voltage: VDIF≤1V (at IO=1.0A) Variable output voltage (rise only) May be used for remote sensing (excluding SI-3025F) • Output ON/OFF control terminal is compatible with LS-TTL. (It may be directly driven by LS-TTL or standard CMOS logic.) • Built-in foldback overcurrent, overvoltage, thermal protection circuits • Variable output voltage type (SI-3025F) also available ■Applications • For stabilization of the secondary stage of switching power supplies • Electronic equipment ■Absolute Maximum Ratings Parameter (Ta=25°C) Ratings Symbol SI-3050F SI-3090F/3120F SI-3150F/3157F 35 45 30 VIN Voltage of Output Control Terminal VC VIN IO 1.0*2 A PD1 14(With infinite heatsink) W Power Dissipation 30 SI-3025F DC Input Voltage DC Output Current 25 Unit SI-3240F V V PD2 1.5(Without heatsink, stand-alone operation) W Junction Temperature Tj –40 to +125 °C Ambient Operating Temperature Top –30 to +100 °C Tstg –40 to +125 °C Thermal Resistance (junction to case) Rth(j-c) 7.0 °C/W Thermal Resistance (junction to ambient air) Rth(j-a) 66.7(Without heatsink, stand-alone operation) °C/W Storage Temperature 33 ●SI-3000F Series ■Electrical Characteristics (excluding SI-3025F) (Ta=25°C unless otherwise specified) Ratings Parameter Input Voltage SI-3000F*1 Output SI-3000FA Voltage Symbol VIN VO Conditions SI-3050F SI-3120F SI-3157F SI-3240F typ. max. min. typ. max. min. typ. max. min typ. max. min 6*3 15*2 10*3 20*2 25*2 27*2 27*2 13*3 16*3 16.7*3 Unit typ. max. 25*3 40 4.80 5.00 5.20 8.64 9.00 9.36 11.52 12.00 12.48 14.40 15.00 15.60 14.92 15.70 16.48 23.04 24.00 24.96 4.90 5.00 5.10 8.82 9.00 9.18 11.76 12.00 12.24 14.70 15.00 15.30 VIN=8V, IO=0.5A VIN=12V, IO=0.5A 0.5 VIN=18V, IO=0.5A VIN=19V, IO=0.5A VIN=27V, IO=0.5A 0.5 0.5 0.5 0.5 1.0 1.0 1.0 0.5 IO≤0.5A 1.0 V V VIN=15V, IO=0.5A Conditions 1.0 V 1.0 IO≤1.0A Conditions Line Regulation SI-3150F typ. max. min. VDIF Dropout Voltage SI-3090F min. ∆VOLINE 10 30 18 48 24 64 30 90 30 90 48 128 mV Conditions VIN=6V to 15V, IO=0.5A VIN=10V to 20V, IO=0.5A VIN=13V to 25V, IO=0.5A VIN=16V to 27V, IO=0.5A VIN=17V to 27V, IO=0.5A VIN=25V to 38V, IO=0.5A Load Regulation ∆VOLOAD Conditions Temperature Coefficient of Output Voltage Ripple Rejection 40 100 70 180 93 240 120 300 Iq Conditions Overcurrent Protection IS1 Starting Current*4,7 Conditions 300 VIN=18V, IO=0 to 1.0A VIN=19V, IO=0 to 1.0A VIN=27V, IO=0 to 1.0A ±0.5 ±1.0 ±1.5 ±1.5 ±1.5 ±2.5 RREJ Current 120 VIN=15V, IO=0 to 1.0A Conditions VIN=8V, IO=5mA, Tj=0 to 100°C VIN=12V, IO=5mA, Tj=0 to 100°C VIN=15V, IO=5mA, Tj=0 to 100°C VIN=18V, IO=5mA, Tj=0 to 100°C Quiescent Circuit 300 VIN=12V, IO=0 to 1.0A ∆VO/∆Ta Conditions 120 VIN=8V, IO=0 to 1.0A mV/°C VIN=19V, IO=5mA, Tj=0 to 100°C VIN=27V, IO=5mA, Tj=0 to 100°C 54 54 54 54 54 54 VIN=8V, f=100 to 120HZ VIN=12V, f=100 to 120HZ VIN=15V, f=100 to 120HZ VIN=18V, f=100 to 120HZ VIN=19V, f=100 to 120HZ VIN=27V, f=100 to 120HZ 3 10 VIN=8V, IO=0A 1.2 3 10 VIN=12V, IO=0A 1.2 VIN=8V 3 1.2 VIN=12V 3 1.2 VIN=15V 3 1.2 VIN=18V 2.0 10 VIN=19V, IO=0A 5 1.2 VIN=19V A VC. IL 0.8 0.8 0.8 0.8 0.8 0.8 Control Current Terminal*5 (Output ON) IC. IH 20 20 20 20 20 20 Control Current IC. IL –0.3 –0.3 –0.3 Conditions 2.0 2.0 V VC=2.7V –0.3 –0.3 –0.3 mA VIN=27V Control Voltage (Output OFF) Conditions 2.0 10 VIN=27V, IO=0A VC. IH (Output OFF) 2.0 10 VIN=18V, IO=0A dB Control Voltage (Output ON) VC 2.0 10 VIN=15V, IO=0A mV µA mA VC=0.4V *1: "A" may be indicated to the right of the Sanken logo. *2: VIN(max) and IO(max) are restricted by the relation PD(max)=(VIN-VO)•IO=14(W). *3: Refer to the dropout voltage.(Refer to Setting DC Input Voltage on page 7.) *4: IS1 is specified at –5(%) drop point of output voltage VO on the condition that VIN=VO+3V, IO=0.5A. *5: Output is ON even when output control terminal VC is open. Each input level is equivalent to LS-TTL. Therefore, it may be directly driven by an LS-TTL circuit. *6: When setting output voltage to 5V or less, input voltage needs to be set to 6V or over to operate stably. *7: A foldback type overcurrent protection circuit is built into the IC regulator. Therefore, avoid using it for the following applications as it may cause starting errors: (1) Constant current load (2) Plus/minus power (3) Series power (4) VO adjustment by raising ground voltage 34 ●SI-3000F Series ■Electrical Characteristics (SI-3025F) (Ta=25°C unless otherwise specified) Ratings Parameter SI-3025F Symbol min. Input Voltage Reference Voltage max. 6*6 VIN Output Voltage Unit typ. VO 3 VREF 2.45 2.55 VDIF V 24 V 2.65 V 0.5 IO≤0.5A Conditions Dropout Voltage 25*2 V 1.0 IO≤1.0A Conditions ∆VOLINE Line Regulation 10 Conditions ∆VOLOAD Load Regulation 20 Conditions of Reference Voltage ±0.5 Conditions 54 Conditions Quiescent Circuit Starting 3 Conditions Overcurrent Protection 1.2 VC. IH Control Voltage (Output OFF) VC. IL VIN=VO+3V 2.0 V 0.8 VC Control Current Terminal*5 (Output ON) IC. IH Control Current IC. IL (Output OFF) Conditions 20 Conditions VC=2.7V –0.3 µA mA VC=0.4V ■Outline Drawing (unit:mm) φ 3.2±0.2 4.2±0.2 ±0.2 2.8 Part Number Lot Number (2.0) (8.0) +0.2 0.85 –0.1 (4.6) 0.95±0.15 +0.2 0.45 –0.1 P1.7±0.7×4=6.8±0.7 3.9±0.7 5.0±0.6 2.6±0.1 (17.9) 16.9±0.3 4.0±0.2 7.9±0.2 0.5 ±0.2 10.0 mA A Conditions Control Voltage (Output ON) 10 VIN=VO+3V, IO=0A IS1 Current*4,7 dB VIN=VO+3V, f=100 to 120HZ Iq Current mV/°C VIN=VO+3V, IO=5mA, Tj=0 to 100°C RREJ Ripple Rejection mV/V VIN=VO+3V, IO=0 to 1.0A ∆VREF/∆Ta Temperature Coefficient mV/V VIN=VO+1 to 25V, IO=0.5A (4.3) 8.2±0.7 Plastic Mold Package Type Flammability: UL94V-0 Weight: Approx. 2.3g Terminal Connections (Only SI-3025F) q w e r t q w e r t GND VC VO VOS VIN GND VC VO VREF VIN 1 2 3 4 5 Forming No. 1101 35 ●SI-3000F Series ■Block Diagram SI-3000F SI-3025F Tr1 3 Reg. Drive VREF 2 Amp. 4 ON/OFF VREF 2 3 MIC 4 Amp. Drive Protection ON/OFF Reg. MIC Tr1 5 Protection 5 Equivalent to LS-TTL Equivalent to LS-TTL 1 1 ■Standard External Circuit SI-3000F D1 *2 5 + DC Input VIN OPEN *1 C1 3 SI-3000F 2 4 + 1 C2 C0 DC Output VO C0 *1 C1 C2 *2 D1 SI-3025F *3 R1 R2 D1 * 2 5 DC Input VIN + *1 3 SI-3025F OPEN 2 C2 R1 4 + *3 1 C1 C0 R2 *3 ■Ta-PD Characteristics Power Dissipation PD (W) 15 Infinite heatsink With Silicon Grease Heatsink: Aluminum 20 0× 20 10 10 0× 2m 0× 10 m 0× 75 5 m ×7 5× (5. 2° 2m m (2 .3 2m °C /W ) C/ (7. W ) 6°C /W ) Without heatsink 0 –30 0 25 50 75 Ambient Temperature Ta (°C) PD=IO•[VIN(mean)–VO] 36 100 DC Output VO : Output capacitor (47 to 100µF) : Oscillation prevention capacitor (C1: Approx. 47µF, C2: 0.33µF) These capacitors are required if the input line is inductive and in the case of long wiring. Tantalum capacitors are recommended for C1 and C0, particularly at low temperatures. : Protection diode This diode is required for protection against reverse biasing of the input and output. Sanken EU2Z is recommended. : External resistor for setting output voltage Relationship between output voltage VO and external resistors R1 and R2 is as follows. R1 VO=VREF• 1+ (VREF=2.55V(typ.)) R2 R2 must be 2.55kΩ for stable operation. ●SI-3000F Series External Variable Output Voltage Circuit (Excluding SI-3025F) 1. Variable output voltage with a single external resistor VIN 35 VO 5 + 3 SI-3000F OPEN 2 47µF 1 IREX 4 REX V04 F 240 VIN=VO+1V SI-3 30 + 47µF GND 25 The output voltage may be increased by inserting resistor REX between terminals No.4 (sensing terminal) and No.3 (output terminal). The current IREX flowing into terminal No.4 is 1mA (typ.), therefore the adjusted output voltage VOUT is: VO=V04+IREX•REX *V04: output voltage of SI-3000F series However, the built-in resistor (between terminals No. 4 and No.1) is a semiconductor resistor, which has approximately thermal characteristics of +0.2%/°C. It is important to keep the thermal characteristics in mind when adjusting the output voltage. Output Voltage VO (V) GND F 150 SI-3 20 F 120 SI-3 F 090 SI-3 15 F 050 SI-3 10 5 0 2 4 6 8 10 External Resistor REX (kΩ) 2. Variable output voltage with two external resistors VIN VO 5 + SI-3000F OPEN 2 47µF 3 1 IREX1 4 REX1 V04 35 + 47µF I4IN 0F 324 SI- 2=6kΩ REX VIN=VO+1V REX2 30 GND GND *V04: Output voltage of SI-3000F series 25 Output Voltage VO (V) The output voltage may be increased by inserting resistors REX1 between terminals No.4 (sensing terminal) and No.3 (output terminal) and REX2 between terminals No.4 and No.1 (ground terminal). The current I4IN flowing into terminal No.4 is 1mA (typ.) so the thermal characteristics may be improved compared to the method shown in 1 by setting the external current IREX1 at approximately 5 times the value of I4IN (stability coefficient S=5). The adjusted output voltage VOUT in this case is: VO=V04+REX1•IREX1 IREX1=S•I4IN The value of the external resistors may be obtained as follows: VO-V04 V04 REX1= REX2= S•I4IN , (S-1)•I4IN F 150 Ω SI-X32=3.75k E R F 120 SI-3X2=3kΩ RE F 090 5kΩ I S -3X2=2.2 20 15 RE 0F 305 5kΩ SI- X2=1.2 RE 10 5 0 1.0 2.0 External Resistor REX1 (kΩ) S: Stability coefficient of I4IN (may be set to any value) Note: In the SI-3000F series, the output voltage increase can be adjusted as mentioned above. However, when the rise is set to approximately 10V compared to output voltage V04, the necessary output current may not be obtained due to the S.O.A. protection circuit in the SI-3000F series. 37 ●SI-3000F Series ■Typical Characteristics (Ta=25°C) Temperature Coefficient of Output Voltage(SI-3050F) 0.3 0.2 5.02 5.00 4.98 4.96 0.1 0.6 0.8 1.0 4.94 –40 –20 Rise Characteristics(SI-3050F) 40 60 0 80 100 120 140 0A 1. 0.5A 0.75A 10 IO=0A =0.5A =1.0A 8 6 4 2 3 4 5 0 0 6 2 4 Overcurrent Protection Characteristics(SI-3120F) 25 22 V 3V 15 V VIN =1 18V 6 4 Output Voltage VO (V) 12 8 6 8 10 12 14 0 0.5 1.0 1.5 Output Current IO (A) 2.0 3 2 0 0.4 0.6 0.8 1.0 1.2 1.4 1.6 Thermal Protection Characteristics(SI-3050F) 6 VIN=27V 25 30 5 20 40V 35V 15 10 0 0 0.2 Output Current IO (A) 5 2 4 0 16 Overcurrent Protection Characteristics(SI-3140F) 30 10 8V 10V Input Voltage VIN (V) Input Voltage VIN (V) 14 4.0 1 Output Voltage VO (V) 1 3.0 5 2 0 0 2.0 Overcurrent Protection Characteristics(SI-3050F) Output Voltage VO (V) Output Voltage VO (V) A =0 IO 3 1.0 6 12 2 0 Output ON/OFF Control Voltage Vc (V) Rise Characteristics(SI-3120F) 1 Output Voltage VO (V) 20 14 5 Output Voltage VO (V) 0 Ambient Temperature Ta (°C) 6 0.25A 2 1 Output Current IO (A) 4 VIN=8V IO =10mA 6V 0.4 3 N= 0.2 4 VI 0 0 0 5 12V 0.4 VIN=8V IO =0A VO =5V V 5.04 15 0.5 Output ON/OFF Control(SI-3050F) 6 Output Voltage VO (V) 5.06 Output Voltage VO (V) Dropout Voltage VDIF (V) IO vs. VDIF Characteristics 0.6 4 VIN=8V IO=10mA 3 2 1 0.5 1 1.5 2 Output Current IO (A) 2.5 3 0 0 20 60 100 140 180 Case Temperature Tc (°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 short-circuiting over extended periods of time. 38