Ordering number: ENA2092 LB11851FA Monolithic Digital IC Microprocessor Fan Motor LB11851FA Specifications Absolute Maximum Ratings at Ta = 25C Parameter Symbol Conditions Ratings Unit Maximum supply voltage V max 18 V CC OUTN pin maximum output current IOUTN max 20 mA OUTP pin maximum output current IOUTP max 20 mA OUT pin voltage handling capacity VOUT max 18 V 5VREG maximum output current I5VREG max 20 mA Allowable power dissipation Pd max When mounted on the specified circuit board *1 400 mW Operating temperature Topr *2 -40 to +90 C Storage temperature Tstg -55 to +150 C *1 Specified substrate :20.0mm 10.0mm 0.8mm, Paper phenol board. *2 Do not exceed Tj max = 150C Caution 1) Absolute maximum ratings represent the value which cannot be exceeded for any length of time. Caution 2) Even when the device is used within the range of absolute maximum ratings, as a result of continuous usage under high temperature, high current, high voltage, or drastic temperature change, the reliability of the IC may be degraded. Please contact us for the further details. Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above the Recommended Operating Conditions is not implied. Extended exposure to stresses above the Recommended Operating Conditions may affect device reliability. Recommended Operating Ranges at Ta = 25C Parameter Symbol Conditions Ratings Unit Supply voltage - V V 6 to 16 V CC CC PWM high-level input voltage range VPWMINH 2.1 to 5.0 V PWM low-level input voltage range VPWMINL 0 to 0.4 V FGIN high-level input voltage range VFGINH 2.1 to 5.0 V FGIN low-level input voltage range VFGINL 0 to 0.3 V SENSE input voltage range VSENop 0 to 5.0 V Electrical Characteristics at Ta = 25C, V = 12V DD Ratings Parameter Symbol Conditions Unit min typ max Circuit current I 1 With no load 3.5 5 6.5 mA CC 5VREG voltage 5VREG 5VREG = 10mA 4.8 5 5.2 V SENSE pin detection voltage VSENth 0.15 0.19 0.23 V FGIN high-level input current FGIhi V = 3V 60 80 100 A IN FGIN low-level input current FGIlow V = 0V -27 -21 -15 A IN PWMIN high-level current PWMIhi V = 3V 35 45 55 A IN PWMIN low-level current PWMIlow V = 0V -27 -21 -14 A IN OUT1P, OUT2P high-level output V 12PH I = 10mA *2 10 11 11.9 V O O voltage I = 1mA *2 11 11.3 V O OUT1P, OUT2P low-level output V 12PL I = 10mA *2 3 4 5 V O O voltage I = 1mA *2 1.2 1.5 V O OUT1N, OUT2N high-level output V 12NH I = 10mA *1 9 10 11.9 V O O voltage I = 1mA *1 10.8 11.1 V O OUT1N, OUT2N low-level output V 12NL I = 10mA *1 0.1 1 2 V O O voltage I = 1mA *1 0.7 1 V O *1 : There is a built-in 100 gate protection resistor. *2 : There is a built-in 300 gate protection resistor. Truth Table FGIN PWMIN SENSE OUT1P OUT1N OUT2P OUT2N Mode L L L L L H H OUT1 2 drive H H H L L OUT2 1 drive L H L H L H H Regeneration mode (low side regeneration) H H H H L L L H H L H H Current limiter (low side regeneration) H H H H L Note 1 : For the SENSE pin, the state is 0.2V or higher. Note 2 : The IC goes to regeneration mode (no motor drive applied) when the microcontroller is reset (the output high-impedance state). No.A2092-2/5