S1F75510M0A010B
S1F75510M0A010B Datasheet
S1F7S51F57155010
| Part | Datasheet |
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S1F75510M0A010B |
S1F75510M0A010B (pdf) |
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| PF1233-01 S1F7S51F57155010 Charge-pump DC/DC Converter & Voltage Regulator s DESCRIPTION The S1F75510 is a power IC designed for use with medium or small capacity panel modules. A single chip of this IC is capable of generating three different levels of positive and negative output voltages simultaneously, which are necessary to drive the LCD, by use of a single input power of through +3.6V. Since the S1F75510 does not require external transistors nor diodes as its voltage conversion circuit, its builtin CMOS transistors constituting a complete charge pump type DC/DC converter, it is most suitable for the purpose of reducing the current consumption levels of the LCD modules. Moreover, the charge pump type DC/DC converter of the S1F75510 can be operated upon the frequencies, which are to be switched over by the mode changing signals, using either of the built-in clock signals or external clock signals optimal to respective cases. This function can drastically suppress the current consumption of this IC while under light load state, thus exhibiting very high power conversion efficiencies. s FEATURES q Supply voltage 2.7V to 3.6V single power input q Self consumption current normal mode/blank mode • 300µA / 30µA TBD Normal mode Boosting by use of the internal clock Blank mode Selectable between boosting by use of the internal clock or by use of the external clock. q Conversion efficiency of the charge pump 90% or more respectively q Built-in voltage conversion circuits constituted by charge pump type DC/DC converter, • !2 boosting circuit in the positive direction • !3 boosting circuit in the positive direction • !3 boosting circuit in the negative direction q Built-in voltage stabilizing circuit q Capable of outputting the positive supply voltage VOUT2 for the source driver • !2 boosting circuit in the positive direction + voltage stabilizing circuit Output voltage +5.0V ±3% TBD q Capable of outputting the positive supply voltage VOUT3 for the gate driver • !3 boosting circuit in the positive direction Output voltage +15V VOUT3 = VOUT2 ! 3 q Capable of outputting the negative supply voltage VOUT4 for the gate driver • !3 boosting circuit in the negative direction Output voltage VOUT4 = VOUT2 ! q Built-in electric charge discharging circuit q Built-in shut down function q Shipping state q This IC is not of the radiation resistant design nor of the light resistance design. S1F75510 s BLOCK DIAGRAM ROSC VSS POFFX 8 Discharging circuit OSC1 OSC2 1 CR oscillation circuit CL MODE 2 Mode changeover circuit OSCSEL 3 Timing signal forming circuit 4 x2 boosting circuit in the positive direction C1P C1N C2P C2N CVOUT1 VOUT1 5 Voltage stabilizing circuit CVOUT2 + VOUT2 6 x3 boosting circuit in the positive direction C3P C3N C4P C4N + CVOUT3 VOUT3 7 x3 boosting circuit in the negative direction C5P C5N C6P C6N CVOUT4 VOUT4 |
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