LC75839PW 1/4 and 1/3-Duty General-Purpose LCD Driver Overview www.onsemi.com The LC75839PW is 1/4 duty and 1/3 duty general-purpose microprocessor- controlled LCD driver that can be used in applications such as frequency display in products with electronic tuning. In addition to being able to drive up to 208 segments directly, the LC75839PW can also control up to 4 general-purpose output ports. Because it has the PWM output of a maximum of 3 ch, the brightness control of the LED backlight of RGB can be done. Incorporation of an oscillation circuit helps to reduce the number of external resistors and capacitors required. Features SPQFP64 10x10 / SQFP64 Support for 1/4-duty 1/3-bias or 1/3-duty 1/3-bias drive techniques under serial data control. When 1/4-duty: Capable of driving up to 208 segments When 1/3-duty: Capable of driving up to 159 segments Serial data input supports CCB* format communication with the system controller. (Support 3.3 V and 5 V operation) Serial data control of the power-saving mode based backup function and the all segments forced off function. Serial data control of switching between the segment output port and general-purpose output port function. (Support for up to 4 general-purpose output ports) Support for the PWM output function of a maximum of 3-ch. (It can output from the general-purpose output port) Support for clock output function of 1-ch. Serial data control of the frame frequency of the common and segment output waveforms. Serial data control of switching between the internal oscillator operating mode and external clock operating mode. High generality, since display data is displayed directly without the intervention of a decoder circuit. The INH pin allows the display to be forced to the off state. Incorporation of an oscillator circuit. (Incorporation of resistor and capacitor for an oscillation) * Computer Control Bus (CCB) is an ON Semiconductors original bus format and the bus addresses are controlled by ON Semiconductor. ORDERING INFORMATION See detailed ordering and shipping information on page 27 of this data sheet. Semiconductor Components Industries, LLC, 2017 1 Publication Order Number : June 2017 - Rev. 1 LC75839PW/D LC75839PW Specifications Absolute Maximum Ratings at Ta = 25 C, V = 0 V SS Parameter Symbol Conditions Ratings Unit Maximum supply voltage V max V 0.3 to +6.5 V DD DD Input voltage V 1 CE, CL, DI, INH 0.3 to +6.5 IN V V2 OSCI, V 1, V 2 0.3 to V +0.3 IN DD DD DD Output voltage V S1 to S53, COM1 to COM4, P1 to P4 0.3 to V +0.3 V OUT DD Output current I 1 S1 to S52 300 A OUT I 2 COM1 to COM4, S53 3 OUT mA I 3 P1 to P4 5 OUT Allowable power dissipation Pd max Ta = 85 C 200 mW Operating temperature Topr 40 to +85 C Storage temperature Tstg 55 to +125 C Stresses exceeding those listed in the Maximum Ratings table may damage the device. If any of these limits are exceeded, device functionality should not be assumed, damage may occur and reliability may be affected. Allowable Operating Ranges at Ta = 40 to +85C, V = 0 V SS Ratings Parameter Symbol Conditions Unit min typ max Supply voltage V V 4.5 6.0 V DD DD Input voltage V1 V 1 2/3V V DD DD DD DD V V2 V 2 1/3V V DD DD DD DD Input high-level voltage V 1 CE, CL, DI, INH 0.4V 6.0 IH DD V V 2 OSCI: External clock operating mode 0.4V V IH DD DD Input low-level voltage V 1 CE, CL, DI, INH 0 0.2V IL DD V V 2 OSCI: External clock operating mode 0 0.2V IL DD External clock operating f OSCI: External clock operating mode CK 10 300 600 kHz frequency Figure 4 External clock duty cycle D OSCI: External clock operating mode CK 30 50 70 % Figure 4 Data setup time tds CL, DI Figure 2 , Figure 3 160 ns Data hold time tdh CL, DI Figure 2 , Figure 3 160 ns CE wait time tcp CE, CL Figure 2 , Figure 3 160 ns CE setup time tcs CE, CL Figure 2 , Figure 3 160 ns CE hold time tch CE, CL Figure 2 , Figure 3 160 ns High-level clock pulse width t H CL Figure 2 , Figure 3 160 ns Low-level clock pulse width t L CL Figure 2 , Figure 3 160 ns Rise time tr CE, CL, DI Figure 2 , Figure 3 160 ns Fall time tf CE, CL, DI Figure 2 , Figure 3 160 ns switching time tc , CE Figure 5 , Figure 6 INH INH 10 s Functional operation above the stresses listed in the Recommended Operating Ranges is not implied. Extended exposure to stresses beyond the Recommended Operating Ranges limits may affect device reliability. www.onsemi.com 2