UPD161644 データシートの表示（PDF） - NEC => Renesas Technology

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UPD161644

241 OUTPUT GATE DRIVER WITH POWER SUPPLY FOR TFT-LCD GATE DRIVER

NEC => Renesas Technology 

µPD161644

Resistor Bit

R25

D0

D1

D2

D3

D4

R26

D0

D1

D2

D3

D4

D5

D6

Symbol

VCD2

VMS

VRSEL0

VRSEL1

VRSEL2

FS0

FS1

FS2

FS3

CLS0

CLS1

FUP

Reset

0

1

1

0

1

1

0

1

0

1

0

0

Function

VDD2 boost selection

VDD2 boost mode

selection

VR regulator output

voltage selection

VDD2, VSS4 boost

frequency selection in

scan mode

VDD1, VSS2, VSS3

boost frequency

selection in scan mode

DC/DC OSC frequency

selection

Switching of DC/DC

OSC frequency

(2/5)

Description

Select the number of VDD2 boost step (x2/x3).

<VCD2 = 0> VDD2 = VDC x 2

<VCD2 = 1> VDD2 = VDC x 3

Select VDD2 boost mode.

<VMS = 0> VDD2 = Single boost mode

<VMS = 1> VDD2 = Dual boost mode

Select output voltage of VR regulator. When IFSEL = 1, VR

is fixed to 5 V.

<VRSEL0 = 0, VRSEL1 = 0, VRSEL2 = 0> VR = 3 V

<VRSEL0 = 1, VRSEL1 = 0, VRSEL2 = 0> VR = 3.5 V

<VRSEL0 = 0, VRSEL1 = 1, VRSEL2 = 0> VR = 4 V

<VRSEL0 = 1, VRSEL1 = 1, VRSEL2 = 0> VR = 4.5 V

<VRSEL0 = 0, VRSEL1 = 0, VRSEL2 = 1> VR = 4.75 V

<VRSEL0 = 1, VRSEL1 = 0, VRSEL2 = 1> VR = 5 V

<VRSEL0 = 0, VRSEL1 = 1, VRSEL2 = 1> VR = 5.25 V

<VRSEL0 = 1, VRSEL1 = 1, VRSEL2 = 1> VR = 5.5 V

Select VDD2, VSS4 boost frequency in scan mode. When

IFSEL = 1, FS1 is fixed to 0.

<FS0 = 0, FS1 = 0> fOSC/2 <FS0 = 1, FS1 = 0> fOSC/4

<FS0 = 0, FS1 = 1> fOSC/8 <FS0 = 1, FS1 = 1> fOSC/16

Select VDD1, VSS2, VSS3 boost frequency in scan mode.

When IFSEL = 1, FS3 is fixed to 0.

<FS2 = 0, FS3 = 0> fOSC/2 <FS2 = 1, FS3 = 0> fOSC/4

<FS2 = 0, FS3 = 1> fOSC/8 <FS2 = 1, FS3 = 1> fOSC/16

Select oscillation frequency of OSC for DC/DC converter.

When IFSEL = 1, CLS1 is fixed to 1.

<CLS0 = 0, CLS1 = 0> fOSC = 18 kHz, DCCLK: Open

<CLS0 = 1, CLS1 = 0> fOSC = 25 kHz, DCCLK: Open

<CLS0 = 0, CLS1 = 1> fOSC = 37 kHz, DCCLK: Open

<CLS0 = 1, CLS1 = 1> External CK input mode

Select oscillation frequency of OSC for DC/DC converter.

When IFSEL = 1, the frequency is fixed to fOSC.

<FUP = 0> fOSC

<FUP = 1> fOSC x 2

Preliminary Product Information S15797EJ1V4PM

17

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