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ISO1540 Datasheet(PDF) 8 Page - Texas Instruments |
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ISO1540 Datasheet(HTML) 8 Page - Texas Instruments |
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8 / 21 page  ISO1540 ISO1541 SLLSEB6 – JULY 2012 www.ti.com DEVICE INFORMATION Table 2. IEC INSULATION AND SAFETY-RELATED SPECIFICATION FOR D-8 PACKAGE Over recommended operating conditions, unless otherwise noted PARAMETER TEST CONDITIONS MIN TYP MAX UNIT Shortest terminal-to-terminal distance L(I01) Minimum air gap (Clearance) 4.8 mm through air Minimum external tracking Shortest terminal-to-terminal distance L(I02) 4.3 mm (Creepage) across the package surface Tracking resistance (comparative CTI DIN IEC 60112 / VDE 0303 Part 1 >400 V tracking index) Minimum internal gap (internal Distance through the insulation 0.014 mm clearance) VIO = 500 V, TA < 100°C >1012 Ω Isolation resistance, input to RIO output(1) VIO = 500 V, 100°C ≤ TA >1011 Ω Barrier capacitance, input to CIO VIO = 0.4 x sin(2E6πt) 1 pF output(1) CI Input capacitance(2) See Electrical Characteristics pF (1) All pins on each side of the barrier tied together creating a two-terminal device. (2) Measured from input pin to ground. spacer NOTE Creepage and clearance requirements should be applied according to the specific application isolation standards. Care should be taken to maintain these distances on a board design to ensure that the mounting pads for the isolator do not reduce this distance. Creepage and clearance on the printed-circuit board become equal in certain cases. Techniques such as inserting grooves and/or ribs on the printed circuit board are used to help increase these specifications. Table 3. IEC 60747-5-2 INSULATION CHARACTERISTICS(1) Over recommended operating conditions, unless otherwise noted PARAMETER TEST CONDITIONS SPECIFICATION UNIT Maximum working insulation VIORM 566 voltage Method a, After environmental tests subgroup 1, VPR = VIORM x 1.6, t = 10 sec, 906 Partial Discharge < 5 pC Method b1, After environmental tests subgroup 1, Input-to-Output test voltage per IEC VPR VPR = VIORM x 1.875, t = 1 sec (100% production), 1062 60747-5-2 VPEAK Partial Discharge < 5 pC After Input/Output safety test subgroup 2/3, VPR = VIORM x 1.2, t = 10 sec, 680 Partial Discharge < 5 pC VTEST = VOITM Transient overvoltage per IEC VIOTM t = 60 sec (qualification) 4000 60747-5-2 t = 1 sec (100% production) RS Insulation resistance VIO = 500 V at TS >109 Ω Pollution degree 2 (1) Climatic Classification 40/125/21 8 Submit Documentation Feedback Copyright © 2012, Texas Instruments Incorporated Product Folder Link(s): ISO1540 ISO1541 |
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