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ANPEC

APW7223 Datasheet Preview

APW7223 Datasheet

Multi-Output Power Supply

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APW7223
Multi-Output Power Supply with VCOM Amplifier for EPD
Features
General Description
Single Chip Power Management Solution for E- The APW7223 is a single chip, multi outputs PMIC for E-
paper Displays
paper displays. Two PWM converters respectively gener-
Input Supply Voltage Range: 3.0~5.5V
ate positive and negative voltages which are boosted to
I2C Series Interface
higher voltage by two charge pumps for both source and
Boost Converter for Positive Rail Base (HVINP)
gate drivers. Two integrated power switches are used to
Inverting Buck-Boost Converter for Negative Rail disconnect these PWM outputs from load in shutdown
Base (HVINN)
mode. All PWM and charge pump output voltages are
Accurate Voltage Tracking between HVINP and adjustable by external resistors and their power on/off
HVINN: +50mV
timings can be individually programmable via I2C interface.
Integrated Two Power Switches with Soft-start One accurate VCOM voltage, for backplane biasing, is
Control for Source Driver Supply
adjustable via I2C interface from -0.3V to -2.85V with 10mV
-POS: +15V/120mA
per step. The VCOM is capable of sourcing and sinking
-NEG: -15V/120mA
Two Charge Pump for Gate Driver Supply
current, depending on panel condition, at lease 100mA.
An external negative temperature coefficient(NTC) resis-
-DGVDD: +22V/20mA
tor is incorporated to sense remote temperature. This
-DGVEE:-22V/20mA
remote temperature sensing can be used to monitor the
Accurate and Adjustable VCOM Voltage for Panel batterys surface temperature to avoid over heating. The
Backplane Biasing
temperature data is mapped from the voltage on TS pin
- -0.3 to -2.85V/100mA, 10mV per step
according to a preset conversion table. Approximately
-8-bit Control
every 250µs the APW7223 executes the voltage/tempera-
Programmable Turn-on/Turn-off Timing in every ture conversion and stores the temperature date in reg-
Output Voltage
ister in twos complement format.
Remote Temperature Sensing
The APW7223 is available in a space saving TQFN5x5
POK Output
32-pin package and is specified over the -40oC to +85oC
FAULT Output
extended temperature range.
Enable Input
Current Limit Protection
Over Temperature Protection
Applications
Fault Events Report in Every Output for Easy De-
bugging
1MHz Fixed PWM Frequency
E-paper Displays
Up to 85% efficiency for the Boost
Internal Soft Start Control
Available in TQFN5x5-32 Package
Halogen and Lead Free Available (RoHS
Compliant)
ANPEC reserves the right to make changes to improve reliability or manufacturability without notice, and
advise customers to obtain the latest version of relevant information to verify before placing orders.
Copyright © ANPEC Electronics Corp.
1
Rev. A.2 - May., 2016
www.anpec.com.tw




ANPEC

APW7223 Datasheet Preview

APW7223 Datasheet

Multi-Output Power Supply

No Preview Available !

APW7223
Simplified Application Circuit
DGVDD
+22V
DGVEE
+22V
Positive
Charge
Pump
Negative
Charge
Pump
VCOM
I2C
Interface
Thermal
ADC
1MHz
PWM
Boost
POS
Soft-
start
NEG
Soft-
start
1MHz
PWM
INV
HVINP
POS
15V
NEG
-15V
HVINN
Ordering and Marking Information
APW7223
Assembly Material
Handling Code
Temperature Range
Package Code
Package Code
QB : TQFN5x5-32
Operating Ambient Temperature Range
I : -40 to 85oC
Handling Code
TR : Tape & Reel
Assembly Material
G : Halogen and Lead Free Device
APW
APW7223QB: 7223
XXXXX
XXXXX - Date Code
Note: ANPEC lead-free products contain molding compounds/die attach materials and 100% matte tin plate termination finish; which
are fully compliant with RoHS. ANPEC lead-free products meet or exceed the lead-free requirements of IPC/JEDEC J-STD-020D for
MSL classification at lead-free peak reflow temperature. ANPEC defines Greento mean lead-free (RoHS compliant) and halogen
free (Br or Cl does not exceed 900ppm by weight in homogeneous material and total of Br and Cl does not exceed 1500ppm by
weight).
Copyright © ANPEC Electronics Corp.
2
Rev. A.2 - May., 2016
www.anpec.com.tw



Part Number APW7223
Description Multi-Output Power Supply
Maker ANPEC
Total Page 3 Pages
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APW7223 Datasheet PDF





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