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ISL8033 Datasheet(PDF) 7 Page - Intersil Corporation |
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ISL8033 Datasheet(HTML) 7 Page - Intersil Corporation |
7 / 18 page ISL8033, ISL8033A 7 FN6854.2 March 24, 2011 Positive Peak Overcurrent Limit Ipoc1 ISET = VDD 4.1 4.8 5.5 A Ipoc2 4.1 4.8 5.5 A Ipoc1 ISET = Float 4.1 4.8 5.5 A Ipoc2 2.7 3.3 3.9 A Ipoc1 ISET = GND 2.7 3.3 3.9 A Ipoc2 2.7 3.3 3.9 A Negative Peak Overcurrent Limit Inoc1 -3.5 -2.5 -1.5 A Inoc2 -3.5 -2.5 -1.5 A LX1, LX2 P-Channel MOSFET ON-Resistance VIN = 6V, IO = 200mA 50 75 m Ω VIN = 2.85V, IO = 200mA 70 100 m Ω N-Channel MOSFET ON-Resistance VIN = 6V, IO = 200mA 50 75 m Ω VIN = 2.85V, IO = 200mA 70 100 m Ω LX_ Maximum Duty Cycle 100 % PWM Switching Frequency FS ISL8033 0.88 1.1 1.32 MHz ISL8033A 2.15 2.5 2.85 MHz Synchronization Range FSYNC ISL8033 (Note 6) 2.64 6 MHz Channel 1 to Channel 2 Phase Shift Rising edge to rising edge timing 180 ° LX Minimum On-Time SYNC = High (forced PWM mode) 140 ns Soft Discharge Resistance RDIS EN = LOW 80 100 120 Ω LX Leakage Current Pulled up to 6V 0.1 1 µA PG1, PG2 Output Low Voltage Sinking 1mA, VFB = 0.7V 0.3 V PG_ Pin Leakage Current PG = VIN = 6V 0.01 0.1 µA Internal PGOOD Low Rising Threshold Percentage of nominal regulation voltage 89.5 92 94.5 % Internal PGOOD Low Falling Threshold Percentage of nominal regulation voltage 85 88 91 % Delay Time (Rising Edge) 1ms Internal PGOOD Delay Time (Falling Edge) 7 10 µs EN1, EN2, SYNC Logic Input Low 0.4 V Logic Input High 1.5 V SYNC Logic Input Leakage Current ISYNC Pulled up to 6V 0.1 1 µA Enable Logic Input Leakage Current IEN Pulled up to 6V 0.1 1 µA Thermal Shutdown 150 °C Thermal Shutdown Hysteresis 25 °C NOTES: 6. The operational frequency per switching channel will be half of the SYNC frequency. 7. Compliance to datasheet limits is assured by one or more methods: production test, characterization and/or design. Electrical Specifications Unless otherwise noted, the typical specifications are measured at the following conditions: TA = -40°C to +85°C, VIN = 3.6V, EN1 = EN2 = VDD, L = 1.5µH, C1 = C2 = C4 = 2x22µF, IOUT1 = IOUT2 = 0A to 3A. Typical values are at TA = +25°C. Boldface limits apply over the operating temperature range, -40°C to +85°C. (Continued) PARAMETER SYMBOL TEST CONDITIONS MIN (Note 7) TYP MAX (Note 7) UNITS |
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