UPD161661 データシートの表示（PDF） - NEC => Renesas Technology
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UPD161661 Datasheet PDF : 15 Pages
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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
Regulator output
8
VREF
Reference voltage input/output
46
DCON
DC/DC converter control
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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