SIT1253I Power Integrations

SIT12xxI Family DC/DC Transformer for SCALE-iDriver Gate Driver ICs Providing Reinforced Isolation up to 1200 V Product Highlights VISO2 V SUPPLY Highly Flexible, Compact Footprint COM2 Dual channel DC/DC transformer optimized for forward converters VISO1 Reinforced isolation for 600 V / 650 V / 1200 V IGBT and SiC MOSFET applications COM1 For use with all SCALE-iDriver ICs GND Choice of primary-to-secondary winding ratios -40 C to 105 C operating temperature range V SUPPLY Light weight only 9g Less than 10 pF coupling capacitance TRIG OUT Full Safety and Regulatory Compliance EN 61558-2-16+A1:2013 compliant THRES GND 100% HIPOT tested at 5.4 kV RMS 1s (primary-to-secondary), 2.7 kV RESET RMS 1s (secondary-to-secondary) V SUPPLY VCC High shock and vibration robustness GND Easily meets IEC 60721-3-3 Class 3M8 and IEC 60721-3-5 GND Class 5M3 CONT DISCH VDE approved PI-8707-020819 UL1446 approved Figure 1. Typical Application Schematic. Green Package Halogen free and RoHS compliant Applications General industrial applications Variable frequency and servo drives Static VAR compensators and active power filters Uninterruptible power supplies PV inverters Welding inverters Description The innovative transformer isolated wire-in-wire structure provides Figure 2. SIT1217I and SIT1253I Transformers. excellent reliability and strong isolation combined with low coupling capacitance. The high isolation capability is achieved without the need for mold compound. SIT12xxI transformers are UL and VDE approved, simplifying safety certification and reducing time-to-market. The SIT12xxI is a DC/DC transformer that delivers a secondary-side voltage Product Portfolio of 25 V to support SCALE-iDriver gate driver ICs. SIT12xxI 3 transformers are available with different winding ratios to Product Power Primary-Side Supply accommodate a primary-side supply voltage of either 5 V or 15 V. SIT1253I 2 1.3 W 5 V SIT1217I 2 1.3 W 15 V Table 1. SIT12xxI Transformer Portfolio. www.power.com August 2020 This Product is Covered by Patents and/or Pending Patent Applications. - +SIT1253I .. 011235 VDE REG F455 SIT12xxI Pin Functional Description 1 10 Pin 1 9 Start of primary-side winding W1. 2 Pin 2 Start of primary-side winding W2. 3 Pin 3 6 End of primary-side winding W1. 4 5 Pin 4 End of primary-side winding W2. YY/WW Code Pin 5 Production location Start of secondary-side winding W3. 1 5 Pin 6 End of secondary-side winding W3. W1 W3 3 6 Pin 9 Start of secondary-side winding W4. 2 9 Pin 10 W2 W4 End of secondary-side winding W4. 4 10 PI-8710-081920 Figure 3. Top View Footprint and Pin Assignment. Ratios W1 W2 W3 W4 W1 X 1 5.33 5.33 W2 1 X 5.33 5.33 W3 0.19 0.19 X 1 W4 0.19 0.19 1 X Table 2. Ratios SIT1253I. Ratios W1 W2 W3 W4 W1 X 1 1.73 1.73 W2 1 X 1.73 1.73 W3 0.58 0.58 X 1 W4 0.58 0.58 1 X Table 3. Ratios SIT1217I. 2 Rev. C 08/20 www.power.com