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ISL78235R5668 Datasheet(PDF) 6 Page - Intersil Corporation |
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ISL78235R5668 Datasheet(HTML) 6 Page - Intersil Corporation |
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6 / 20 page  ISL78235R5668 6 FN8769.1 January 21, 2016 Submit Document Feedback Absolute Maximum Ratings (Reference to GND) Thermal Information VIN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to 5.8V (DC) or 7V (20ms) EN, FS, PG, SYNC, VFB . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to VIN + 0.3V PHASE . . . . . . . . . . . . -1.5V (100ns)/-0.3V (DC) to 6.5V (DC) or 7V (20ms) COMP, SS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to 2.7V ESD Rating Human Body Model (Tested per AEC-Q100-002) . . . . . . . . . . . . . . . . 5kV Machine Model (Tested per AEC-Q100-003). . . . . . . . . . . . . . . . . . 300V Charge Device Model (Tested per AEC-Q100-011) . . . . . . . . . . . . . . . 2kV Latch-Up (Tested per AEC-Q100-004, Class II, Level A) . . . . . . . . . . 100mA Thermal Resistance JA (°C/W) JC (°C/W) 16 Ld TQFN Package (Notes 6, 7) . . . . . . . 43 3.5 Operating Junction Temperature Range . . . . . . . . . . . . . .-55°C to +125°C Storage Temperature Range. . . . . . . . . . . . . . . . . . . . . . . .-65°C to +150°C Pb-Free Reflow Profile . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . see TB493 Recommended Operating Conditions VIN Supply Voltage Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.7V to 5.5V Load Current Range (Continuous) . . . . . . . . . . . . . . . . . . . . . . . . . . 0A to 5A Pulse Load Current (<100µs; <10% duty cycle) . . . . . . . . . . . . . . . . . . . . 8A Ambient Temperature Range . . . . . . . . . . . . . . . . . . . . . . . . -40°C to +85°C CAUTION: Do not operate at or near the maximum ratings listed for extended periods of time. Exposure to such conditions may adversely impact product reliability and result in failures not covered by warranty. NOTES: 6. JA is measured in free air with the component mounted on a high effective thermal conductivity test board with “direct attach” features. See Tech Brief TB379. 7. JC, “case temperature” location is at the center of the exposed metal pad on the package underside. Electrical Specifications Specification limits are established at the following conditions: TA = -40°C to +85°C, VIN = 3.6V, EN = VIN, unless otherwise noted. Typical values are at TA = +25°C. Boldface limits apply across the operating temperature range -40°C to +85°C. PARAMETER SYMBOL TEST CONDITIONS MIN (Note 8)TYP MAX (Note 8)UNIT INPUT SUPPLY VIN Undervoltage Lockout Threshold VUVLO Rising, no load 2.5 2.7 V Falling, no load 2.20 2.45 V Quiescent Supply Current IVIN SYNC = GND, no load at the output 47 µA SYNC = GND, no load at the output and no switches switching 47 60 µA SYNC = VIN, fSW = 2MHz, no load at the output 19 25 mA Shutdown Supply Current ISD SYNC = GND, VIN = 5.5V, EN = low 4 10 µA OUTPUT REGULATION Reference Voltage VREF 0.594 0.600 0.606 V VFB Bias Current IVFB VFB = 0.75V 0.1 µA Line Regulation VIN = VO + 0.5V to 5.5V (minimal 2.7V) 0.2 %/V Soft-Start Ramp Time Cycle SS = SGND 1 ms Soft-Start Charging Current ISS VSS = 0.1V 1.7 2.1 2.5 µA OVERCURRENT PROTECTION Current Limit Blanking Time tOCON 17 Clock pulses Overcurrent and Auto Restart Period tOCOFF 8 SS cycle Positive Peak Current Limit IPLIMIT TA = +25°C 10 12 14 A TA = -40°C to +85°C 10 14.7 A Peak Skip Limit ISKIP TA = +25°C 1.30 1.50 1.75 A TA = -40°C to +85°C 1.30 1.82 A Zero Cross Threshold -275 375 mA Negative Current Limit INLIMIT TA = +25°C -5.0 -2.8 -1.3 A TA = -40°C to +85°C -5.0 -0.6 A |
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