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PDF AP5727 Data sheet ( Hoja de datos )
| Número de pieza | AP5727 | |
| Descripción | BIAS POWER SUPPLY | |
| Fabricantes | Diodes | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de AP5727 (archivo pdf) en la parte inferior de esta página. Total 10 Páginas | ||
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AP5727
BIAS POWER SUPPLY FOR OLED
SUB DISPLAY AND TFT-LED
Description
Pin Assignments
The AP5727 is a high efficiency boost converter in a
compact SOT25 that provides the bias voltages for OLED
Sub Display and TFT-LCD (Liquid Crystal Display).
A high 1.2MHz switching frequency and internal
compensation minimizes external part count, PCB area and
cost. Integrated soft start reduces inrush current.
The AP5727 has a 1.25V feedback voltage making it
compatible with industry standard boost converters used to
bias LCD panels.
( Top View )
SW 1
5 VIN
GND 2
FB 3
74 EN
SOT25
Features
Applications
• 30V High Output Voltage
• Fast 1.2MHz Switching Frequency
• Current limit and UVLO Protections
• Internal Thermal Shutdown
• Maximum 1µA Shutdown Current
• Integrated Soft-start Function
• SOT25: Available in “Green” Molding Compound
(No Br, Sb)
• Lead Free Finish/RoHS Compliant (Note 1)
• Small size TFT-LCD Bias power supply.
• OLED bias supply for a clamshell handset sub display
• RF amplifier bias voltages
http://www.DataSheet4U.net/
Notes: 1. EU Directive 2002/95/EC (RoHS). All applicable RoHS exemptions applied. Please visit our website at http://www.diodes.com/products/lead_free.html.
Typical Application Circuit
VIN
L1
22uH
D1
VOUT
C IN
4.7uF
VIN SW
AP5727
EN FB
GND
COUT
R1 10uF
R2
AP5727
Document number: DS31887 Rev. 2 - 2
Figure 1. Typical Application Circuit
1 of 10
www.diodes.com
January 2011
© Diodes Incorporated
datasheet pdf - http://www.DataSheet4U.net/
1 page  
AP5727
BIAS POWER SUPPLY FOR OLED
SUB DISPLAY AND TFT-LED
Typical Performance Characteristics (VIN 3.3V; VOUT = 15V IOUT = 20mA)
Temperature vs. Shutdown Current
2
1.6
1.2
0.8
0.4
0
-50 -25
0 25 50 75
Temperature (℃)
100 125
Temperature vs. Frequency
1.7
1.4
1.1
0.8
0.5
-50
-25
0 25 50 75
Temperature (℃)
100 125
1.3
1.28
1.26
1.24
1.22
1.2
-50
Temperature vs. Feedback Voltage
-25 0 25 50 75 100 125
Temperature (℃)
90
85
http://www.DataSheet4U.net/
80
75
70
65
60
55
50
0
IOUT (mA) vs. Efficiency (%)
VIN = 5V
VIN = 4.2V
VIN = 3.6V
VIN = 3.3V
20 40 60
IOUT (mA)
80
AP5727
Document number: DS31887 Rev. 2 - 2
5 of 10
www.diodes.com
January 2011
© Diodes Incorporated
datasheet pdf - http://www.DataSheet4U.net/
5 Page | ||
| Páginas | Total 10 Páginas | |
| PDF Descargar | [ Datasheet AP5727.PDF ] | |
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