Features: An input voltage can be boosted double/triple/quadruple to negative potential. Input voltages: 2.4 to 5.5V (quadruple boosting), 2.4 to 7.3V (triple boosting), 2.4 to 11.0V (double boosting) Excellent vol tage conversion efficiency: 95% (Typ.) Large output current: 20 mA (Max.) during q...
SCI7654M: Features: An input voltage can be boosted double/triple/quadruple to negative potential. Input voltages: 2.4 to 5.5V (quadruple boosting), 2.4 to 7.3V (triple boosting), 2.4 to 11.0V (double boosti...
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Rating |
Symbol |
Min. |
Max. |
Unit |
Remark |
Input Power Voltage |
VIN |
-26.0/N |
VDD +0.3 |
V |
N=Boosting time; at VIN pin |
Input Pin Voltage |
VI |
VIN -0.3 |
VDD +0.3 |
V |
POFF1, POFF2 TC1, TC2, FC pins |
Output Pin Voltage 1 |
V0C1 |
VIN -0.3 |
VDD +0.3 |
V |
At C1P and C2P pins |
Output Pin Voltage 2 |
V0C2 |
2 *VIN -0.3 |
VIN +0.3 |
V |
At C1N pin |
Output Pin Voltage 3 |
V0C3 |
3 *VIN -0.3 |
2 *VIN +0.3 |
V |
At C2N pin |
Output Pin Voltage 4 |
V0C4 |
4 *VIN -0.3 |
3 *VIN +0.3 |
V |
At C3N pin |
Regulator Input Power Voltage |
VRI |
N* VIN -0.3 |
VDD +0.3 |
V |
N=Boosting time; at VRI pin |
Regulator Input Pin Voltage |
VRV |
N* VIN -0.3 |
VDD +0.3 |
V |
N=Boosting time; at RV pin |
Output Voltage |
V0 |
N *VIN -0.3 |
VDD +0.3 |
V |
N=Boosting time; at VOUT and VREG pins |
Input Current |
IIN |
- |
80 |
mA |
At VIN pin |
Output Current |
IOUT |
- |
N4: 20 N>4: 80/N |
mA |
N=Boosting time; at VOUTand VREG pins |
Allowable Loss |
Pd |
- |
210 |
mW |
- |
Operating Temperature |
Topr |
-30 |
85 |
°C |
- |
Storage Temperature |
Tstg |
-55 |
150 |
°C |
- |
Soldering Temperature and Time |
Tsol |
- |
260•10 |
°C.S |
Temperature at leads |
The SCI7654M is a highly efficient, but low power-consumption DC-to-DC converter based on the advanced CMOS technologies. SCI7654M can generate an output voltage double/triple/quadruple times higher than the input (in negative direction) if 4/3/2 external capacitors are attached.
With a built-in voltage regulator, the SCI7654M can provide a stable output by setting the DC/DC output to any voltage via two external resistors. This is optimum to the LCD panel power supply as the stable output can have the negative temperature gradient required for an LCD panel.