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ISL97672IRZ-EVAL Datasheet(PDF) 2 Page - Intersil Corporation |
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ISL97672IRZ-EVAL Datasheet(HTML) 2 Page - Intersil Corporation |
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2 / 17 page  ISL97672 2 FN7632.1 November 1, 2010 Block Diagram 45V*, 25mA per string 78 (6x13) LEDs REF GEN GM AMP COMP + - + - CH0 CH5 VIN = 4.5V~26V Logic FET Driver OVP REG LX ISL97672 OSC & RAMP Comp Σ=0 Imax ILIMIT Fault Flag Highest VF String Detect VDC Temp Sensor Fault Flag PWM PGND RSET + - GND VIN REG O/P Short REF_OVP REF_VSC Bias + - 10uH/3A 4.7uF/50V CH1 pe Open Ckt, Short Ckt Detects 0 1 Fault/Status Control OVP 5 PWM5 PWM1 PWM0 VSET Boost SW fsw PWM GENERATOR FAULT EN (Optional Q1) Fault Flag /FLAG * Vin > 6V FIGURE 2. ISL97672 BLOCK DIAGRAM 40mA VIN > 12V |
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