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ISL8225MEVAL4Z Datasheet(PDF) 8 Page - Renesas Technology Corp |
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ISL8225MEVAL4Z Datasheet(HTML) 8 Page - Renesas Technology Corp |
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8 / 34 page  ISL8225M FN7822 Rev 2.00 Page 8 of 34 December 8, 2014 OSCILLATOR Oscillator Frequency fOSC SYNC pin is open 510 kHz Total Variation (Note 9)VCC = 5V; -40°C < TA < +85°C -9 +9 % FREQUENCY SYNCHRONIZATION AND PHASE LOCK LOOP (Note 9) Synchronization Frequency VCC = 5V 300 1500 kHz PLL Locking Time VCC = 5.4V, fSW = 500kHz 130 µs Input Signal Duty Cycle Range 10 90 % PWM (Note 9) Minimum PWM OFF Time tMIN_OFF 310 345 410 ns Current Sampling Blanking Time tBLANKING 175 ns OUTPUT CHARACTERISTICS Output Continuous Current Range IOUT(DC) VIN = 12V, VOUT1 = 1.5V 015 A VIN = 12V, VOUT2 = 1.5V 015 A VIN = 12V, VOUT = 1.5V, in Parallel mode 030 A Line Regulation Accuracy VOUT/VIN VIN = 4.5V to 20V VOUT1 = 1.5V, IOUT1 = 0A 0.0065 % VOUT2 = 1.5V, IOUT2 = 0A 0.0065 % VIN = 4.5V to 20V VOUT1 = 1.5V, IOUT1 = 15A 0.01 % VOUT2 = 1.5V, IOUT2 = 15A 0.01 % Load Regulation Accuracy VOUT/VOUT VIN = 12V, 5x22µF, 2x4.7µF ceramic capacitor and 1x330µF POSCAP IOUT1 = 0A to 15A, VOUT1 = 1.5V 0.3 1 % IOUT2 = 0A to 15A, VOUT2 = 1.5V 0.3 1 % Output Ripple Voltage VOUT VIN = 12V, 3x100µF ceramic capacitor and 1x330µF POSCAP IOUT1 = 0A, VOUT1 = 1.5V 11 mVP-P IOUT2 = 0A, VOUT2 = 1.5V 11 mVP-P IOUT1 = 15A, VOUT1 = 1.5V 14 mVP-P IOUT2 = 15A, VOUT2 = 1.5V 14 mVP-P DYNAMIC CHARACTERISTICS Voltage Change for Positive Load Step VOUT-DP Current slew rate = 2.5A/µs VIN = 12V, VOUT = 1.5V, 2x47µF ceramic capacitor and 1x330µF POSCAP IOUT1 = 0A to 7.5A 75 mVP-P IOUT2 = 0A to 7.5A 75 mVP-P Voltage Change for Negative Load Step VOUT-DN Current slew rate = 2.5A/µs VIN = 12V, VOUT = 1.5V, 2x47µF ceramic capacitor and 1x330µF POSCAP IOUT1 = 7.5A to 0A 70 mVP-P IOUT2 = 7.5A to 0A 70 mVP-P REFERENCE (Note 9) Reference Voltage (Include Error and Differential Amplifier Offsets) VREF1 TA = -40°C to +85°C 0.5958 0.6 0.6042 V -0.7 0.7 % Reference Voltage (Include Error and Differential Amplifier Offsets) VREF2 TA = -40°C to +85°C 0.5955 0.6 0.6057 V -0.75 0.95 % Electrical Specifications TA = +25°C, VIN = 12V, unless otherwise noted. Boldface limits apply across the internal junction temperature range, -40°C to +125°C (Note 4). (Continued) PARAMETER SYMBOL TEST CONDITIONS MIN (Note 7) TYP (Note 8) MAX (Note 7)UNITS |
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