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SI-8033JF Dataheets PDF



Part Number SI-8033JF
Manufacturers ETC
Logo ETC
Description Separate Excitation Step-down Switching Mode
Datasheet SI-8033JF DatasheetSI-8033JF Datasheet (PDF)

1-1-3 DC/DC Converter ICs SI-8000JF Series Full-Mold, Separate Excitation Step-down Switching Mode ■Features • Compact full-mold package (equivalent to TO220) • Output current: 1.5A • High efficiency: 67 to 88% • Requires only 4 discrete components • Internally-adjusted phase correction and output voltage • Capable of downsize a choke-coil due to IC's high switching frequency (125kHz). (Compared with conventional Sanken devices) • Built-in foldback-overcurrent and thermal protection circuits •.

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1-1-3 DC/DC Converter ICs SI-8000JF Series Full-Mold, Separate Excitation Step-down Switching Mode ■Features • Compact full-mold package (equivalent to TO220) • Output current: 1.5A • High efficiency: 67 to 88% • Requires only 4 discrete components • Internally-adjusted phase correction and output voltage • Capable of downsize a choke-coil due to IC's high switching frequency (125kHz). (Compared with conventional Sanken devices) • Built-in foldback-overcurrent and thermal protection circuits • Output ON/OFF available (circuit current at output OFF: 200µA max.) • Soft start available by ON/OFF pin ■Lineup Part Number VO (V)* IO (A) * VREF(V) for SI-8015JF SI-8015JF 1.59 ■Absolute Maximum Ratings Parameter DC Input Voltage Power Dissipation Junction Temperature Storage Temperature Thermal Resistance (Junction to Case) Symbol VIN PD1 PD2 Tj Tstg θj-c SI-8033JF 3.3 1.5 SI-8050JF 5.0 Ratings 43 16.6 (with infinite heatsink) 1.5 (without heatsink, standalone operation) +125 –40 to +125 6.0 SI-8120JF 12.0 Unit V W W °C °C °C/W ■Applications • Power supplies for telecommunication equipment • Onboard local power supplies ■Recommended Operating Conditions Parameter DC Input Voltage Range Output Current Range Operating Junction Temperature Range Symbol VIN1 VIN2 IO Tjop SI-8015JF* VO+2 to 40 VO+3 to 40 Ratings SI-8033JF SI-8050JF 5.3 to 40 7 to 40 6.3 to 40 8 to 40 0 to 1.5 –30 to +125 SI-8120JF 14 to 40 15 to 40 Unit V V A °C Conditions IO=0 to 1A IO=0 to 1.5A VIN≥VO+3V * SI-8015JF is a variable output voltage type. The variable output voltage range is from 2.5 V to 24 V. ■Electrical Characteristics Parameter Output Voltage*1 Efficiency Oscillation Frequency Line Regulation Load Regulation Temperature Coefficient of Output Voltage*3 Overcurrent Protection Starting Current Low Level Voltage ON/OFF*5 Outflow Current Terminal at Low Voltage Quiescent Circuit Current Symbol VO*2 Conditions η Conditions f Conditions ∆VOLINE Conditions ∆VOLOAD Conditions ∆VO/∆Ta*4 IS1 Conditions VSSL ISSL Conditions Iq Conditions Iq(OFF) Conditions SI-8015JF min. typ. max. 1.558 1.59 1.622 VIN=12V, IO=0.5A 67 VIN=12V, IO=0.5A 125 VIN=12V, IO=0.5A 25 80 VIN=8 to 30V, IO=0.5A 10 30 VIN=12V, IO=0.2 to 0.8A ±0.5 1.6 VIN=12V 0.5 100 VSSL=0V 7 VIN=12V, IO=0A 200 VIN=12V, VON/OFF=0.3V Ratings SI-8033JF SI-8050JF min. typ. max. min. typ. max. 3.234 3.30 3.366 4.90 5.00 5.10 VIN=15V, IO=0.5A VIN=20V, IO=0.5A 77 82 VIN=15V, IO=0.5A VIN=20V, IO=0.5A 125 125 VIN=15V, IO=0.5A VIN=20V, IO=0.5A 25 80 40 100 VIN=8 to 30V, IO=1.0A VIN=10 to 30V, IO=1.0A 10 30 10 40 VIN=15V, IO=0.5 to1.5A VIN=20V, IO=0.5 to 1.5A ±0.5 ±0.5 1.6 VIN=15V 0.5 100 VSSL=0V 7 VIN=15V, IO=0A 200 VIN=15V, VON/OFF=0.3V 1.6 VIN=20V 0.5 100 VSSL=0V 7 VIN=20V, IO=0A 200 VIN=20V, VON/OFF=0.3V SI-8120JF min. typ. max. 11.76 12.00 12.24 VIN=24V, IO=0.5A 88 VIN=24V, IO=0.5A 125 VIN=24V, IO=0.5A 60 130 VIN=18 to 30V, IO=1.0A 10 40 VIN=24V, IO=0.5 to 1.5A ±1.0 1.6 VIN=24V 0.5 100 VSSL=0V 7 VIN=24V, IO=0A 200 VIN=24V, VON/OFF=0.3V *1: Reference voltage for SI-8015JF *3: Temperature Coefficient of Reference Voltage for SI-8015JF *2: VREF for SI-8015JF *4: ∆VREF/∆Ta for SI-8015JF *5: Pin 5 is the ON/OFF pin. Soft start at power on can be performed with a capacitor connected to this pin. The output can also be turned ON/OFF with this pin. The output is stopped by setting the SI-8000JF voltage of this pin to VSSL or lower. ON/OFF-pin voltage can be changed with an open-collector drive circuit of a transistor. When using both the soft-start and ON/OFF functions together, the discharge current from C3 flows into the ON/OFF control transistor. Therefore, limit the current securely to protect the transistor if C3 capacitance is large. The ON/OFF pin is pulled up to the power supply in the IC, so applying the external voltage is prohibited. If this pin is not 5 ON/OFF used, leave it open. SI-8000JF 5 ON/OFF C3 (Ta=25°C) Unit V % kHZ mV mV mV/ °C A V µA mA µA SI-8000JF 5 ON/OFF C3 VOUT. ON/OFF Soft start Soft start +VOUT. ON/OFF 34 ICs ■External Dimensions (TO220F-5) 10.0±0.2 4.2±0.2 2.8±0.2 φ 3.2±0.2 0.5 4.0±0.2 7.9±0.2 16.9±0.3 2.6±0.1 (2.0) (8.0) 0.95±0.15 0.85 +0.2 –0.1 P1.7±0.7×4=6.8±0.7 (4.6) 0.45 +0.2 –0.1 3.9±0.7 (4.3) 8.2±0.7 1 23 45 Forming No.1101 ■Block Diagram SI-8015JF 1 VIN 5 ON/OFF PReg. OCP ON/OFF Soft Start Reset OSC + – Comp. Error Amp. + – GND 3 SW OUT 2 Latch& Drive TSD VREF 4 VREF ■Typical Connection Diagram VIN 220µF SI-8015JF 1 VIN SW 2 SI-8015JF 4 + ON/OFF GND VREF 53 L1 VOUT R1 Di C4 R2 REF + 470µF GND GND IREF IREF shall be approx. 2mA. C1 : 50V/220µF C2 : 25V/470µF C3 : 10V/0.47µF (Only when using soft-start function) C4 : 6800pF L1 : 100µH Di : RK16 (Sanken) VREF × (R1+R2) VOUT= R2 (17.9) SI-8000JF Series (Unit : mm) Pin Assignment q VIN w SWOUT e GND r VOS t ON/OFF Plastic Mold Package Type Flammability: UL94V-0 Product Mass: Approx. 2.3g 8.


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