SC5A BOURNS | Alldatasheet

Document overview

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  • PDF pages: 2

Technical content

Features

  • 5-amp Output Current
  • 94 % Efficiency
  • Industry-standard Pin-out
  • Low 0.5 " Profile
  • Non-isolated Output
  • Remote Sense
  • Remote Enable
  • Short-Circuit Protection with Auto restart
  • Trim Function
  • Fast Transient Response
  • High-temperature Operation
  • 60 W/in

3 Power Density

Patents 5,770,940 5,978,195 Common Specifications Min Nom Max Units Notes Input Voltage 9 12 16 Vdc 10-16 V for SC5A-12S5 Current 3 A Remote Enable High = Disable 2.4 5.5 Vdc Source 500 µA Low = Enable 0.7 Vdc Open=Enable Current 20 mA Disabled Output Current 0 5 A Sense Compensation 50 mV Voltage Setpoint Accuracy ±1.4 ±2.3 %V nom Voltage Trim Range -10 +10 %V nom Line Regulation ±0.2 %V nom Load Regulation ±0.1 %V nom Temp Regulation .005 %V nom/°C Current Limit 6 A Dynamic Response 0 to 100 % load 200 mV ∆i/∆t = 3 A/µs 19 µs 100 to 0 % load 200 mV ∆i/∆t = 3 A/µs 19 µs Temperature Regulation ±0.02 %V out/°C General MTBF 1,878 k Hrs 25°C, 80 % load, 100 lfm Operating Temperature -25 85 °C Storage Temperature -55 125 °C Switching Frequency 500 kHz Reliable Electronic Solutions Asia-Pacific: Europe: The Americas: www.bourns.com TEL +886- (0)2 25624117  FAX +886- (0)2 25624116 TEL +41-41 768 5555  FAX +41-41 768 5510 TEL +1-951 781 5500  FAX +1-951 781-5700 Specifications are subject to change without notice. Customers should verify actual device performance in their specific applications.

2.53 (64.3) 0.48 (11.4) 1.40 (35.6) 0.10 (2.54) 0.28 (7.2) 1,2,4 Vout

3 Remote Sense

9 Trim

10 Enable

0.135 ± .015 (3.43 ± 0.38) 0.023 (0.6) typ pin width 0.37 (9.4) 0.012 (0.3) typ pin thickness inches (mm) 0.xx ±0.01 inches 0.xxx ±0.005 inches 0.13 (3.3) Verify the values in circles SC5A-12S3.3 100

1 A 2 A 3 A 4 A 5 A

Efficiency (%) SC5A-12S1.8 100

1 A2 A3 A4 A5 A

Efficiency (%) SC5A-12S2.5 100 Efficiency (%) SC5A-12S5 100 Efficiency (%) 10 Vin

12 Vin

15 Vin

10 Vin

Ambient Temperature (C) %Max Output SC5A Temperature Derating 80 90 200 lfm still air -40 -30 100 100 lfm Optional Operating Temp Vout SC5A Trim Circuits Trim Gnd Vout = Desired output voltage Vnom R 1 (Ω) R 2 (Ω) 5.0 3,740 10,000 3.3 2,000 4,120 2.5 1,210 2,550 1.8 499 432 Vout Trim Gnd Rdown (Ω) = [(1000Vout - 1300) * (R1+R2)] - (R1*R2) 1300 - 1000Vout + R1 Rup (Ω) = R1*1690 1300Vout - 1690 - 1.3R1 -R2 Rdown Rup Vin Vout

7 Vin

8 Vin

100 µf 10 V ESR<65 mΩ SC5A Enable 100 µf 10 V ESR<40 mΩ Two output capacitors recommended for SC5A-12S5 to achieve ripple < 70 mV. Electrical Specifications Nominal Output Output Ripple Efficiency Input Voltage Current (mV pp) (%) (V) (V) (A) typ typ SC5A-12S5 12 5.0 5 120 93 SC5A-12S3.3 12 3.3 5 100 90 SC5A-12S2.5 12 2.5 5 100 88 SC5A-12S1.8 12 1.8 5 100 85 Standard Options Add option designators to the end of the part number. Example; SC5A-12S3.3-Z Option Description Z -40 °C Operation Specifications are subject to change without notice. Customers should verify actual device performance in their specific applications. REV. 01/05