Ordering number : ENA0845A LV8800V Bi-CMOS IC For Notebook PC LV8800V Electrical Characteristics Ta = 25C, V = 5V, unless specifically noted CC Ratings Parameter Symbol Conditions Unit min typ max Power supply current 1 I 1 PWM pin = V 1.8 2.5 mA CC CC Power supply current 2 I 2 PWM pin = 0V 20 50 A CC Charge pump output Output voltage VG 9.8 V Output block Source Ron (H) I = 0.5A, VG = 9.5V 0.6 1.0 O Sink Ron (L) I = 0.5A, V = 5.0V 0.6 1.0 O CC Source + sink Ron (H+L) I = 0.5A, V = 5V, VG = 9.5V 1.2 2 O CC Startup oscillation pin OSC pin charge current IOSC1 -2.5 A OSC pin discharge current IOSC2 2.5 A PWM input pin PWM pin high-level input voltage VPWMH V 0.8 V V CC CC PWM pin low-level input voltage VPWML 0 V 0.2 V CC PWM pin input current IPWM PWM pin = 0V -50 A PWM input frequency fPWM 20 25 50 kHz FG output pin FG output pin low-level voltage VFG When I = 0.5mA 0.1 0.2 V O Current limiter circuit Limiter voltage VRf RF = 0.5 0.2250.25 0.275 V Constraint protection circuit Constraint protection detection time RDT1 0.5 1.0 s Constraint protection release time RDT2 5 s Thermal protection circuit Thermal protection circuit operating TSD Design target * 150 180 C temperature Temperature hysteresis width TSD Design target * 30 C * : Design target value and no measurement is made. The thermal protection circuit is incorporated to protect the IC from burnout or thermal destruction. Since it operates outside the IC s guaranteed operating range, the customer s thermal design should be performed so that the thermal protection circuit will not be activated when the fan is running under normal operating conditions. Package Dimensions unit : mm (typ) 3178B Pd max Ta 1.0 3 Specified circuit board : 76.1114.31.6mm 5.2 glass epoxy board 0.8 16 9 0.6 0.4 0.35 18 0.2 0.65 0.15 (0.33) 0.22 0 30 20 0 20 25 40 60 80 95100 Ambient temperature, Ta C SANYO : SSOP16(225mil) No.A0845-2/7 (1.3) 0.1 4.4 1.5max 6.4 0.5 Allowable power dissipation, Pd max W