S32A-5SDAC-RA BOURNS | Alldatasheet

Document overview

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Technical content

Features

  • 32-amp Output Current
  • 90 % Efficiency
  • Nonisolated Output
  • Remote Sense
  • Short-circuit Protection with auto-restart
  • Fast Transient Response
  • Programmable Output
  • Output Precharge Capability

Description

The S32A is a full-featured, 32-amp DC-DC converter that provides the space-saving advantages of a Dual-in-line Packaging (DIP) form factor. Ideal for powering todayís ASICs, DSPs and microprocessors, the S32A features superb dynamic response, remote sense and overcurrent protection. The programmable output allows the customer to standardize on a single part for any output from 1.25 to 3.5 volts. Using a standard pin- out, the S32A packs over 100 watts of power into a minimal 1.5 in 2 of board space. Common Specifications Min Nom Max Units Notes Input Voltage 4.5 5 5.5 Vdc 4.75 V in startup Bias Voltage 10.8 12 13.2 Vdc Bias Current 100 mA Control Voltage High = On 2.4 Vdc Low = Off 0.4 Vdc Control Current 1 mA Output Current 0 32 A Current Limit 40 50 60 A Voltage Setpoint Accuracy ±2 %V nom Line Regulation ±10 mV Load Regulation ±10 mV Ripple / Noise 50 100 150 mV pp Dynamic Response 16-32 A load 200 mV ∆i/∆t=3 A/µs 100 µs ∆i/∆t=3 A/µs 32-16 A load 200 mV ∆i/∆t=3 A/µs 100 µs ∆i/∆t=3 A/µs Temperature Regulation ±0.02 %V out/°C General Operating Temperature -25 85 °C -40 125 °C optional Storage Temperature -40 125 °C Switching Frequency 200 300 400 kHz Efficiency 92 % I out = 32 A, Vout = 3.3 V 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.

1 VID0

2 VID1

3 VID2

4 VID3

5 Remote Enable

6 VID4

12 Sense Gnd

26 Sense Vout

27 Sync (optional)

0.10 (2.5) x 26 12 7 inches (mm) 0.xx ±0.01 inches 0.xxx ±0.005 inches 3.03 (76.9) 0.35 .135 ±.015 1.52 100 -40 -20 0 60 80-30 -10 Ambient Temperature (°C) %Max Output S32A Temperature Derating 50 70 90

400 LFM

300 LFM

100 LFM

ì-Zî Low Temp Option Top View End View VID4 VID3 VID2 VID1 VID0 Output 01111 1 . 3 0 01110 1 . 3 5 01101 1 . 4 0 01100 1 . 4 5 01011 1 . 5 0 01010 1 . 5 5 01001 1 . 6 0 01000 1 . 6 5 00111 1 . 7 0 00110 1 . 7 5 00101 1 . 8 0 00100 1 . 8 5 00011 1 . 9 0 00010 1 . 9 5 00001 2 . 0 0 00000 2 . 0 5 VID4 VID3 VID2 VID1 VID0 Output

11111 N / A

11110 2 . 1 0 11101 2 . 2 0 11100 2 . 3 0 11011 2 . 4 0 11010 2 . 5 0 11001 2 . 6 0 11000 2 . 7 0 10111 2 . 8 0 10110 2 . 9 0 10101 3 . 0 0 10100 3 . 1 0 10011 3 . 2 0 10010 3 . 3 0 10001 3 . 4 0 10000 3 . 5 0 Output Voltage Selection Notes 1. The S32A requires a minimum output capacitance of 1,200 µf for proper operation. 2. A minimum input capacitance of 2,400 µf is required for proper operation. Standard Options Add option designators to the end of the part number. Example; S32A-5SDAC-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