|
|
PDF BD8153EFV Data sheet ( Hoja de datos )
| Número de pieza | BD8153EFV | |
| Descripción | 5V Input Multi-channel System Power Supply IC | |
| Fabricantes | ROHM Semiconductor | |
| Logotipo |  |
|
Hay una vista previa y un enlace de descarga de BD8153EFV (archivo pdf) en la parte inferior de esta página. Total 20 Páginas | ||
|
No Preview Available !
Power Supply IC Series for TFT-LCD Panels
5V Input Multi-channel
System Power Supply IC
BD8153EFV
No.09035JBT09
●Description
The BD8153EFV is a system power supply IC for TFT panels.A 1-chip IC providing a total of four voltages required for TFT
panels, i.e., logic voltage, sauce voltage, gate high-level, and gate low-level voltage, thus constructing a TFT panel power
supply with minimal components required.
●Features (BD8153EFV)
1) Operates in an operating voltage range as low as 2.1 V to 6. 0 V.
2) Incorporates a step-up DC/DC converter.
3) Incorporates a 3.3-V regulator.
4) Incorporates positive and negative-side charge pumps.
5) Switching frequency of 1100 kHz
6) DC/DC converter feedback voltage of 1.24 V ± 1%
7) Incorporates a gate shading function
8) Under-voltage lockout protection circuit
9) Thermal shutdown circuit
10) Overcurrent protection circuit
11) HTSSOP-B24 package
●Applications
Liquid crystal TV, PC monitor, and TFT-LCD panel
●Absolute maximum ratings (Ta = 25°C)
Parameter
Symbol
Limit
Power supply voltage
VCC
7
Vo1 voltage
Vo1 19
Vo2 voltage
Vo2 32
SW voltage
Vsw 19
Maximum junction temperature
Tjmax
150
Power dissipation
Pd 1100*
Operating temperature range
Topr -40 to 125
Storage temperature range
Tstg -55 to 150
* Reduced by 4.7 mW/°C over 25°C, when mounted on a glass epoxy board.
(70 mm 70 mm 1.6 mm).
Unit
V
V
V
V
°C
mW
°C
°C
●Recommended Operating Ranges
Parameter
Power supply voltage
Vo1 voltage
SW voltage
SW Current
Vo2 voltage
Symbol
VCC
Vo1
Vsw
Isw
Vo2
Limit
MIN MAX
2.1 6
8 18
— 18
— 1.8
— 30
Unit
V
V
V
A
V
www.rohm.com
© 2009 ROHM Co., Ltd. All rights reserved.
1/17
2009.07 - Rev.B
1 page  
BD8153EFV
●Reference Data (Unless otherwise specified, Ta = 25°C)
15 5
4
10
3
2
5
1
0
0 1.5 3 4.5 6
SUPPLY VOLTAGE : VCC [V]
Fig. 13 Vo1 Line Regulation
0
0 0.4 0.8 1.2 1.6 2
OUTPUT CURRENT : IDD[mA]
Fig. 14 VDD Load Regulation
14
13V
13
12V
12
11 10.8V
100
95
90
10.8V 12V 13V
85
10
0 100 200 300 400 500 600 700
OUTPUT CURRENT : IO[mA]
Fig. 16 Vo1 Load Regulation
80
0
150 300 450 600
OUTPUT CURRENT : IO1[mA]
Fig. 17 Efficiency vs Output Current
1600
1200
800
400
0
1.5 3 4.5
SUPPLY VOLTAGE : VCC[V]
6
Fig. 19 Power Supply Voltage vs
Max. Output Current Capacity
-6
-6.1
-6.2
-6.3
-6.4
10
11 12 13 14
INPUT VOLTAGE : VO1[V]
15
Fig. 22 Negative-side Charge
Pump Line Regulation
23.8
23.7
23.6
23.5
23.4
10
11.5 13 14.5
INPUT VOLTAGE : Vo1[v]
16
Fig. 20 Vo2 Line Regulation
-6
-6.1
-6.2
-6.3
-6.4
0
50 100 150
OUTPUT CURRENT : IO[mA]
200
Fig. 23 Negative-side Charge
Pump Load Regulation
Technical Note
12.5
12.4
12.3
12.2
12.1
12.0
11.9
11.8
11.7
11.6
11.5
2
3 45
SUPPLY VOLTAGE : VCC[V]
6
Fig. 15 Vo1 Line Regulation
100
90
80
70
60
2.5 3 3.5 4 4.5 5 5.5 6
SUPPLY VOLTAGE : VCC[V]
Fig. 18 Efficiency vs Power
Supply Voltage
24
23.8
23.6
23.4
23.2
23
0 50 100 150
OUTPUT CURRENT : IO2[mA]
Fig. 21 Vo2 Load Regulation
IG
VO2GS
Fig. 24 Gate Shading
Output Waveform
www.rohm.com
© 2009 ROHM Co., Ltd. All rights reserved.
5/17
2009.07 - Rev.B
5 Page 
BD8153EFV
Technical Note
(7) Design of the Feedback Resistor Constant
Refer to the following equation to set the feedback resistor. As the setting range, 10 k to 330 k is recommended. If
the resistor is set lower than a 10 k, it causes the reduction of power efficiency. If it is set more than 330 k, the offset
voltage becomes larger by the input bias current 0.4 µA(Typ.) in the internal error amplifier.
Vo =
R8 + R9
R9
1.24
[V]
Sep-up
Vo
R8
R9
Reference voltage 1.24 V
7
FB1
＋ERR
－
Fig. 35
(8) Positive-side Charge Pump Settings
BU8513EFV incorporates a charge pump controller, thus making it possible to generate stable gate voltage.
The output voltage is determined by the following formula. As the setting range, 10 k to 330 k is recommended. If the
resistor is set lower than a 10k, it causes the reduction of power efficiency. If it is set more than 330 k, the offset voltage
becomes larger by the input bias current 0.4 µA (Typ.) in the internal error amp.
Vo = R8 + R9 1.24 [V]
R9
Vo2
C8
1000 pF to 4700 pF
R8
R9
Reference voltage 1.24 V
12
FB2
＋ERR
－
Fig. 36
In order to prevent output voltage overshooting, add capacitor C8 in parallel with R8. The recommended capacitance is
1000 pF to 4700 pF. If a capacitor outside this range is inserted, the output voltage may oscillate.
By connecting capacitance to the DLS, a rising delay time can be set for the positive-side charge pump.
The delay time is determined by the following formula.
Delay time of charge pump block t DELAY
t DELAY = ( CDLS 0.6 )/5 µA [s6]
where, CDLS is the external capacitance.
(9) Negative-side Charge Pump Settings
BU8513EFV incorporates a charge pump controller for negative voltage, thus making it possible to generate stable gate
voltage. The output voltage is determined by the following formula. As the setting range, 10 k to 330 k is recommended.
If the resistor is set lower than a 10 k, it causes the reduction of power efficiency. If it is set more than 330 k, the offset
voltage becomes larger by the input bias current 0.4 µA (Typ.) in the internal error amp.
Vo3 0.2 V
Vo3 =
-
R6
R7
1.04 + 0.2 V
[V]
C6
1000 pF to 4700 pF
R6
R7
23
FB3
－
ERR
＋
24
REF
1.24 V
The delay time is internally fixed at 200 us.
Fig.37
In order to prevent output voltage overshooting, insert capacitor C6 in parallel with R6. The recommended capacitance
is 1000 pF to 4700 pF. If a capacitor outside this range is inserted, the output voltage may oscillate.
www.rohm.com
© 2009 ROHM Co., Ltd. All rights reserved.
11/17
2009.07 - Rev.B
11 Page | ||
| Páginas | Total 20 Páginas | |
| PDF Descargar | [ Datasheet BD8153EFV.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| BD8153EFV | 5V Input Multi-channel System Power Supply IC | ROHM Semiconductor |
| Número de pieza | Descripción | Fabricantes |
| SLA6805M | High Voltage 3 phase Motor Driver IC. |
 Sanken |
| SDC1742 | 12- and 14-Bit Hybrid Synchro / Resolver-to-Digital Converters. |
 Analog Devices |
|
DataSheet.es es una pagina web que funciona como un repositorio de manuales o hoja de datos de muchos de los productos más populares, |
| DataSheet.es | 2020 | Privacy Policy | Contacto | Buscar |