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PDF UPD161661 Data sheet ( Hoja de datos )

Número de pieza UPD161661
Descripción POWER SUPPLY
Fabricantes NEC 
Logotipo NEC Logotipo



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No Preview Available ! UPD161661 Hoja de datos, Descripción, Manual

PRELIMINARY PRODUCT INFORMATION
MOS INTEGRATED CIRCUIT
µPD161661
POWER SUPPLY FOR TFT-LCD DRIVER
DESCRIPTION
The µPD161661 is a power supply IC for TFT-LCD driver. This ICs can generate the levels which TFT-LCD driver
need, from single voltage input.
FEATURES
To generate 3 levels from single voltage input
To integrate regulator circuit for source driver
ORDERING INFORMATION
Part number
µPD161661P/W
Package
Chip/Wafer
Remark Purchasing the above chip entails the exchange of documents such as a separate memorandum or
product quality, so please contact one of our sales representative.
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The information contained in this document is being issued in advance of the production cycle for the
device. The parameters for the device may change before final production or NEC Corporation, at its own
discretion, may withdraw the device prior to its production.
Not all devices/types available in every country. Please check with local NEC representative for
availability and additional information.
Document No. S15917EJ1V0PM00 (1st edition)
Date Published January 2002 NS CP(K)
Printed in Japan
©
2002

1 page




UPD161661 pdf
µPD161661
3. PIN FUNCTIONS
Symbol
VDC
VSS
Pin Name
Power supply
Ground
VDD1
DC/DC converter output
Pad No.
11
10, 45
26
VDD2
DC/DC converter output
9
VO
Rectangle signal output for
28
negative boost
VS
VREF
Regulator output
Reference voltage input/output
8
46
DCON
DC/DC converter control
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4
RGONP Regulator control
3
EXRVS
VS regulating resistor selection
38
(1/2)
I/O Description
Power supply for logic circuit and DC/DC converter.
Ground for logic circuit and DC/DC converter power
supply.
x6 voltage boost output of DC/DC converter.
Outputs a potential that is VDC boosted to six times the
original level.
Use this pin connected to a voltage stabilization capacitor.
x3 voltage boost output of DC/DC converter.
Outputs a potential that is VDC boosted to three times the
original level.
Use this pin connected to a voltage stabilization
capacitor.
Rectangle signal output for negative boost.
A potential that is VDC boosted to five times the original
level is used for the VO voltage range. A negative power
supply can be created for gate IC bottom output by
connecting an external component to this pin.
Regulator output for source driver. Use this pin
connected to a voltage stabilization capacitor.
I/O Reference voltage input/output of VS regulator.
The internal reference supply voltage is used when
VREFSEL = L. At this time, this pin can also be used as
the reference voltage output of the negative power supply
regulator incorporated in the gate driver, etc. When
VREFSEL = H, the external reference voltage can be input
as the regulator reference voltage.
I DC/DC converter ON/OFF control.
Use this pin connected to DC/DC converter control pin
(DCON) of source driver or the control port output of
CPU.
DCON = H : DC/DC converter ON
DCON = L : DC/DC converter OFF
I Regulator ON/OFF control for source driver voltage (VS).
Use this pin connected to the regulator control pin
(RGONP) of the source driver or the control port output of
CPU.
RGONP = H : Regulator ON
RGONP = L : Regulator OFF
I This pin selects whether to use the internal feedback
resistor or connect an external resistor for the VS
regulator amplifier.
When external resistor connection is selected, configure
a feedback circuit between the MVS, VS, and VSS pins by
connecting an external resistor.
EXRVS = H: External resistor connection
EXRVS = L: Internal feedback resistor used.
Preliminary Product Information S15917EJ1V0PM
5

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UPD161661 arduino
5.2 Power OFF Sequence
T.B.D.
µPD161661
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Preliminary Product Information S15917EJ1V0PM
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