LB1928-E ON Semiconductor

Ordering number : EN6198C LB1928 Monolithic Digital IC For Office Automation Equipment LB1928 Allowable Operating Ranges at Ta = 25C Parameter Symbol Conditions Ratings Unit Power supply voltage range 1 V 9.5 to 28 V CC Regulator voltage output current I -30 to 0 mA REG LD output current I 0 to 15 mA LD Electrical Characteristics at Ta = 25C, V = VM = 24V CC Ratings Parameter Symbol Conditions Unit min typ max Power supply current 1 I1 23 30 mA CC Power supply current 2 I 2 In STOP mode 3.5 5.0 mA CC Output Output saturation voltage 1 Vsat1 I = 1.0A, V (SINK) +V (SOURCE) 2.0 2.5 V O O O O Output saturation voltage 2 Vsat2 I = 2.0A, V (SINK) +V (SOURCE) 2.6 3.2 V O O O O Output leak current Ileak 100 A O Lower-side diode forward voltage 1 V1 ID = -1.0A 1.2 1.5 V D Lower-side diode forward voltage 2 V2 ID = -2.0A 1.5 2.0 V D 5V regulator voltage output Output voltage V I = -5mA 4.65 5.00 5.35 V REG O Voltage fluctuation V 1 V = 9.5 to 28V 30 100 mV REG CC Load fluctuation V 2 I = -5 to -20mA 20 100 mV REG O Hall amplifier Input bias current I -2 -0.5 A HB Common mode input voltage range VICM 1.5 V -1.5 V REG Hall input sensitivity 80 mVp-p Hysteresis width V 15 24 42 mV IN Input voltage LH VSLH 12 mV Input voltage HL VSHL -12 mV PWM oscillator Output High level voltage V (PWM) 2.5 2.8 3.1 V OH Output Low level voltage V (PWM) 1.2 1.5 1.8 V OL Oscillator frequency F (PWM) C = 3900pF 18 kHz Amplitude V (PWM) 1.051.30 1.55Vp-p CSD circuit Operating voltage V (CSD) 3.6 3.9 4.2 V OH External capacitance charge ICHG -17 -12 -9 A current Operating time T (CSD) C = 10F Design target value 3.3 s Current limiter operation Limiter VRF V-VM 0.450.5 0.55V CC Thermal shutdown operation Thermal shutdown operating TSD Design target value (junction temperature) 150 180 C temperature Hysteresis width TSD Design target value (junction temperature) 50 C FG amplifier Input offset voltage V (FG) -10 +10 mV IO Input bias current I (FG) -1 +1 A B Output High level voltage V (FG) IFGO = -0.2mA VREG-1.2 VREG-0.8 V OH Output Low level voltage V (FG) IFGO = 0.2mA 0.8 1.2 V OL FG input sensitivity GAIN 100 times 3 mV Next-stage Schmitt comparator Design target value 100 180 250 mV width Operation frequency range 2 kHz Open-loop gain f (FG) = 2kHz 45 51 dB Continued on next page. No.6197-2/11