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ISL62881B Datasheet(PDF) 5 Page - Intersil Corporation |
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ISL62881B Datasheet(HTML) 5 Page - Intersil Corporation |
5 / 35 page 5 FN6924.1 February 25, 2010 Absolute Maximum Ratings Thermal Information Supply Voltage, VDD. . . . . . . . . . . . . . . . . . . .-0.3V to +7V Battery Voltage, VIN . . . . . . . . . . . . . . . . . . . . . . . . . +28V Boot Voltage (BOOT) . . . . . . . . . . . . . . . . . . -0.3V to +33V Boot to Phase Voltage (BOOT-PHASE) . . . . -0.3V to +7V(DC) . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to +9V(<10ns) Phase Voltage (PHASE) . . . . . -7V (<20ns Pulse Width, 10µJ) UGATE Voltage (UGATE) . . . . . . . PHASE-0.3V (DC) to BOOT . . . . . . . . . PHASE-5V (<20ns Pulse Width, 10µJ) to BOOT LGATE Voltage (LGATE) . . . . . . . . -0.3V (DC) to VDD + 0.3V . . . . . . . . . -2.5V (<20ns Pulse Width, 5µJ) to VDD + 0.3V All Other Pins. . . . . . . . . . . . . . . . . . -0.3V to (VDD + 0.3V) Open Drain Outputs, PGOOD, VR_TT#, CLK_EN# . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .-0.3V to +7V Thermal Resistance (Typical, Notes 4, 5)θJA (°C/W) θJC (°C/W) 28 Ld TQFN Package. . . . . . . . . . . 40 3 32 Ld TQFN Package. . . . . . . . . . . 32 3 Maximum Junction Temperature . . . . . . . . . . . . . . . +150°C Maximum Storage Temperature Range . . . -65°C to +150°C Pb-Free Reflow Profile . . . . . . . . . . . . . . . . . .see link below http://www.intersil.com/pbfree/Pb-FreeReflow.asp Recommended Operating Conditions Supply Voltage, VDD . . . . . . . . . . . . . . . . . . . . . +5V ±5% Battery Voltage, VIN . . . . . . . . . . . . . . . . . . . +4.5V to 25V Ambient Temperature . . . . . . . . . . . . . . . -10°C to +100°C Junction Temperature . . . . . . . . . . . . . . . -10°C to +125°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: 4. θJA 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. 5. For θJC, the “case temp” location is the center of the exposed metal pad on the package underside. Electrical Specifications Operating Conditions: VDD = 5V, TA = -10°C to +100°C, fSW = 300kHz, unless otherwise noted. Boldface limits apply over the operating temperature range, -10°C to +100°C. PARAMETER SYMBOL TEST CONDITIONS MIN (Note 7) TYP MAX (Note 7) UNITS INPUT POWER SUPPLY +5V Supply Current IVDD VR_ON = 1V 3.2 4.0 mA VR_ON = 0V 1 µA Battery Supply Current IVIN VR_ON = 0V 1 µA VIN Input Resistance RVIN VR_ON = 1V 900 kΩ Power-On-Reset Threshold PORr VDD rising 4.35 4.5 V PORf VDD falling 4.00 4.15 V SYSTEM AND REFERENCES System Accuracy %Error (VCC_CORE) No load; closed loop, active mode range VID = 0.75V to 1.50V -0.5 +0.5 % VID = 0.5V to 0.7375V -8 +8 mV VID = 0.3V to 0.4875V -15 +15 mV VBOOT 1.0945 1.100 1.1055 V Maximum Output Voltage VCC_CORE(max) VID = [0000000] 1.500 V Minimum Output Voltage (Note 6) VCC_CORE(min) VID = [1111111] 0 V RBIAS Voltage RBIAS = 147kΩ 1.45 1.47 1.49 V CHANNEL FREQUENCY Nominal Channel Frequency fSW(nom) RFSET = 7kΩ, VCOMP =1V 295 310 325 kHz Adjustment Range 200 500 kHz AMPLIFIERS Current-Sense Amplifier Input Offset IFB = 0A -0.15 +0.15 mV Error Amp DC Gain (Note 6) Av0 90 dB Error Amp Gain-Bandwidth Product (Note 6) GBW CL = 20pF 18 MHz ISL62881, ISL62881B |
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