Datasheet LTC3860 (Analog Devices) - 2

LTC3860
ABSOLUTE MAXIMUM RATINGS PIN CONFIGURATION (Note 1)
VCC Voltage .. –0.3V to 6V TOP VIEW VINSNS Voltage ... –0.3V to 30V VSNSN Voltage .. –0.3V to 2V TRACK/SS1 VINSNS SGND SGND I AVG PGOOD1 PWMEN1 PWM1 RUN Voltage .. –0.3V to 6V 32 31 30 29 28 27 26 25 ISNS1P , ISNS1N, V 1 24 CC RUN1 ISNS2P FB1 2 23 I , ISNS2N ... –0.3V to (VCC + 0.1V) LIM1 All Other Voltages ... –0.3V to (V COMP1 3 22 ISNS1P CC + 0.3V) VSNSOUT 4 21 ISNS1N Operating Junction Temperature Range 33 SGND VSNSN 5 20 ISNS2N (Note 3) .. –40°C to 125°C VSNSP 6 19 ISNS2P Storage Temperature Range ... –65°C to 125°C COMP2 7 18 ILIM2 FB2 8 17 RUN2 9 10 11 12 13 14 15 16 FREQ CLKIN PWM2 CLKOUT PHSMD PGOOD2 PWMEN2 TRACK/SS2 UH PACKAGE 32-LEAD (5mm s 5mm) PLASTIC QFN TJMAX = 125°C, θJA = 34°C/W EXPOSED PAD (PIN 33) IS SGND, MUST BE SOLDERED TO PCB
ORDER INFORMATION LEAD FREE FINISH TAPE AND REEL PART MARKING* PACKAGE DESCRIPTION TEMPERATURE RANGE
LTC3860EUH#PBF LTC3860EUH#TRPBF 3860 32-Lead (5mm × 5mm) Plastic QFN –40°C to 125°C LTC3860IUH#PBF LTC3860IUH#TRPBF 3860 32-Lead (5mm × 5mm) Plastic QFN –40°C to 125°C Consult LTC Marketing for parts specifi ed with wider operating temperature ranges. *The temperature grade is identifi ed by a label on the shipping container. Consult LTC Marketing for information on non-standard lead based fi nish parts. For more information on lead free part marking, go to: http://www.linear.com/leadfree/ For more information on tape and reel specifi cations, go to: http://www.linear.com/tapeandreel/
ELECTRICAL CHARACTERISTICS The
l
denotes the specifi cations which apply over the full operating junction temperature range, otherwise specifi cations are at TA = 25°C (Note 3). VCC = 5V, VRUN1,2 = 5V, VFREQ = VCLKIN = 0V, VFB = 0.6V, fOSC = 0.6MHz unless otherwise specifi ed. SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
VCC Input Voltage Range l 3.0 5.5 V VIN VIN Range VCC = 5V l 3 24 V IQ Input Voltage Supply Current Normal Operation VRUN1,2 = 5V 14 mA Shutdown Mode VRUN1,2 = 0V 50 μA UVLO VCC < VUVLO 3.5 mA VRUN RUN Input Threshold VRUN Rising 1.95 2.25 2.45 V VRUN Hysteresis 250 mV IRUN RUN Input Pull-Up Current VRUN1,2 = 2.4V 1.5 μA VUVLO Undervoltage Lockout Threshold VCC Rising l 3.0 V VCC Hysteresis 100 mV 3860fc 2 Document Outline FEATURES DESCRIPTION APPLICATIONS TYPICAL APPLICATION ABSOLUTE MAXIMUM RATINGS PIN CONFIGURATION ORDER INFORMATION ELECTRICAL CHARACTERISTICS TYPICAL PERFORMANCE CHARACTERISTICS PIN FUNCTIONS FUNCTIONAL DIAGRAM OPERATION APPLICATIONS INFORMATION TYPICAL APPLICATIONS PACKAGE DESCRIPTION REVISION HISTORY TYPICAL APPLICATION RELATED PARTS