Datenblatt-Suchmaschine für elektronische Bauteile |
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SI786LRG Datenblatt(PDF) 2 Page - Vishay Siliconix |
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SI786LRG Datenblatt(HTML) 2 Page - Vishay Siliconix |
2 / 14 page Si786 Vishay Siliconix www.vishay.com 2 Document Number: 70189 S-40807—Rev. J, 26-Apr-04 ABSOLUTE MAXIMUM RATINGS V+ to GND -0.3 V to 36 V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . PGND to GND "2 V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . VL to GND -0.3V to 7 V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . BST3, BST5 to GND -0.3V to 36 V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . LX3 to BST3 -7 V to 0.3 V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . LX5 to BST5 -7 V to 0.3 V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Inputs/Outputs to GND (D1, D2, SHDN, ON5, REF, SS5, CS5. FB5, SYNC, CS3, FB3, SS3, ON3)) -0.3 V, (VL + 0.3 V) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . VH to GND -0.3 V to 20 V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Q1, Q2 to GND -0.3 V, (VH + 0.3 V) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . DL3, DL5 to PGND -0.3 V, (VL + 0.3 V) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . DH3 to LX3 -0.3 V (BST3 + 0.3 ) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . DH5 to LX5 -0.3 V (BST5 + 0.3 ) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . REF, VL Short to GND Momentary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . REF Current 20 mA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . VL Current 50 mA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Continuous Power Dissipation (TA = 70_C)a 28-Pin SSOPb 762 mW . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Operating Temperature Range: (TMIN to TMAX) Si786CG/CRG/CSG (C-Grade) 0 to 70_C . . . . . . . . . . . . . . . . . . . . . . . . . . . . Si786LG/LRG/LSG (L-Grade) −10_ to 90_C . . . . . . . . . . . . . . . . . . . . . . . . . . . Si786DG/DRG/DSG (D-Grade) −40_ to 85_C . . . . . . . . . . . . . . . . . . . . . . . . . Lead Temperature (soldering, 10 sec) 300_C . . . . . . . . . . . . . . . . . . . . . . . . . . Notes a. Device mounted with all leads soldered or welded to PC board. b. Derate 9.52 mW/_C above 70_C. Exposure to Absolute Maximum rating conditions for extended periods may affect device reliability. Stresses above Absolute Maximum rating may cause permanent damage. Functional operation at conditions other than the operating conditions specified is not implied. Only one Absolute Maximum rating should be applied at any one time SPECIFICATIONS Specific Test Conditions Limitse Parameter V+ = 15 V, IVL = IREF = 0 mA, SHDN = ON3 = ON5 = 5 V Other Digital Input Levels 0 V or 5 V, TA = TMIN to TMAX Mina Typb Maxa Unit 3.3-V and 5-V Step-Down Controllers Input Supply Range 5.5 30 FB5 Output Voltage 0 mV < (CS5-FB5) < 70 mV, 6 V < V + < 30 V (includes load and line regulation) 4.80 5.08 5.20 V 0 mV < (CS3-FB3) < 70 mV Si786CG/LG/DG 3.17 3.35 3.46 V FB3 Output Voltage 0 mV < (CS3-FB3) < 70 mV 6 V < V + < 30 V (includes load and line regulation) Si786CRG/LRG/DRG 3.32 3.50 3.60 3 pg (includes load and line regulation) Si786CSG/LSG/DSG 3.46 3.65 3.75 Load Regulation Either Controller (CS_ to FB_ = 0 to 70 mV) 2.5 % Line Regulation Either Controller (V+ = 6 V to 30 V) 0.03 %/V Current Limit Voltage CS3 FB3 or CS5 FB5 80 100 120 mV Current-Limit Voltage CS3-FB3 or CS5-FB5 Si786DG/DRG/DSG 77 100 120 mV SS3/SS5 Source Current 2.5 4.0 6.5 mA SS3/SS5 Source Current Si786DG/DRG/DSG 2.3 4.0 6.5 mA SS3/SS5 Fault Sink Current 2 mA Internal Regulator and Reference VL Output Voltage ON5 = ON3 = 0 V, 5.5 V < V+ < 30 V 0 mA < IL < 25 mA 4.5 5.5 VL Fault Lockout Voltage Falling Edge, Hysteresis = 1% 3.6 4.2 V VL/FB5 Switchover Voltage Rising Edge of FB5, Hysteresis = 1% 4.2 4.7 V REF Output Voltage No External Loadc 3.24 3.36 REF Fault Lockout Voltage Falling Edge 2.4 3.2 REF Load Regulation 0 mA < IL < 5 mAd 30 75 mV V+ Shutdown Current SHDN = D1 = D2 = ON3 = ON5 = 0 V V+ = 30 V 25 40 A V+ Standby Current D1 = D2 = ON3 = ON5 = 0 V, V+ = 70 110 mA V+ Standby Current D1 = D2 = ON3 = ON5 = 0 V, V+ = 30 V Si786DG/DRG/DSG 70 115 Quiescent Power Consumption D1 = D2 = 0 V, FB5 = CS5 = 5 25 V 5.5 8.6 mW Quiescent Power Consumption (both PWM controllers on) 5.25 V FB3 = CS3 = 3.5 V Si786DG/DRG/DSG 5.5 9.0 mW V+ Off Current FB5 = CS5 = 5.25 V, VL Switched Over to FB5 30 60 mA |
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