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RT4723P Scheda tecnica(PDF) 3 Page - Richtek Technology Corporation

Il numero della parte RT4723P
Spiegazioni elettronici  Dual Output AMOLED Bias
PDF  16 Pages
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Produttore elettronici  RICHTEK [Richtek Technology Corporation]
Homepage  http://www.richtek.com
Logo RICHTEK - Richtek Technology Corporation

RT4723P Scheda tecnica(HTML) 3 Page - Richtek Technology Corporation

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RT4723P
Copyright © 2016 Richtek Technology Corporation. All rights reserved.
is a registered trademark of Richtek Technology Corporation.
DS4723P-00
December
2016
www.richtek.com
3
Functional Block Diagram
N1
P1
SCP1
RP2
RP1
VOP
C1N
VIN
GND
PGND
LXP
PWM
Logic
UVLO
OCP1
RN2
RN1
SCP2
VON
DAC
+
-
Oscillator
Pulse
Counter
VREF
Bandgap
Reference
-0.33x/-0.5x
Charge Pump
C1P
Soft-Start
LDO
+
-
GM
VREF
DAC
SWIRE
VREF
Fast
Discharge
VOP
VON
BOOST
C2P
C2N
Operation
The RT4723P is a highly integrated Boost, LDO and
inverting charge pump to generate positive and
negative output voltage. It can support input voltage
range from 2.5V to 4.6V and the output current up to
30mA. The VOP positive output voltage is set at a
typical value of 4.6V. The VON negative output voltage
is set at a typical value of
2.4V and can be
programmed through single wire protocol (SWIRE pin).
The available voltage range is from
0.6V to 2.4V with
100mV per step. The RT4723P provides Over-
Temperature Protection (OTP) and Short Circuit
Protection (SCP) mechanisms to prevent the device
from damage with abnormal operations. When the
SWIRE voltage is logic low for more than 350
s, the IC
will be shut down with low input supply current less
than 1
A.



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