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| ISL6219A_07 |
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6 page 
6 FN9093.1 March 20, 2007 NOTES: 2. These parts are designed and adjusted for accuracy within the system tolerance given in the Electrical Specifications. The system tolerance accounts for offsets in the differential and error amplifiers; reference-voltage inaccuracies; temperature drift; and the full DAC adjustment range. 3. VID input levels above 2.9V may produce an reference-voltage offset inaccuracy. Use a current limit resistor when pull up to 5V. PROTECTION and MONITOR Overvoltage Threshold VSEN Rising 112 115 12 %VDAC VSEN Falling - VID - %VDAC Undervoltage Threshold VSEN Rising 85 92 95 %VDAC VSEN Falling 80 83 90 %VDAC Electrical Specifications Operating Conditions: VCC = 5V, TA = -10°C to +85°C, Unless Otherwise Specified (Continued) PARAMETER TEST CONDITIONS MIN TYP MAX UNITS RISEN1 ERROR AMPLIFIER FB ISEN1 VOUT PWM1 + - FIGURE 1. SIMPLIFIED BLOCK DIAGRAM OF THE ISL6219A IOUT μP LOAD CO VSEN DAC & REFERENCE COMP VIN RISEN2 ISEN2 PWM2 RISEN3 ISEN3 PWM3 VIN VIN L1 L2 L3 + PWM CIRCUIT CURRENT SENSE AVERAGE + + - - - + - - + + - CURRENT SENSE CURRENT SENSE PWM CIRCUIT PWM CIRCUIT RFB RC CC ISL6219A ISL6219A |
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