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
Power supply voltage
Vo1 voltage
Vo2 voltage
SW voltage
Maximum junction temperature
Power dissipation
Operating temperature range
Storage temperature range
Symbol
VCC
Vo1
Vo2
Vsw
Tjmax
Pd
Topr
Tstg
Limit
7
19
32
19
150
1100*
-40 to 125
-55 to 150
Unit
V
V
V
V
°C
mW
°C
°C
* Reduced by 4.7 mW/°C over 25°C, when mounted on a glass epoxy board.
(70 mm
70 mm
1.6 mm).
●Recommended
Operating Ranges
Parameter
Power supply voltage
Vo1 voltage
SW voltage
SW Current
Vo2 voltage
Symbol
VCC
Vo1
Vsw
Isw
Vo2
Limit
MIN
2.1
8
—
—
—
MAX
6
18
18
1.8
30
Unit
V
V
V
A
V
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© 2009 ROHM Co., Ltd. All rights reserved.
1/17
2009.07 - Rev.B
BD8153EFV
Technical Note
●Electrical
Characteristics (Unless otherwise specified, VCC = 5 V; Vo1 = 15 V; Vo2 = 25 V; Ta = 25°C)
1 DC/DC Converter Block
Limit
Parameter
Symbol
Unit
Conditions
Min.
Typ.
Max.
[Soft start]
Source current
Sinking current
[Error amp]
Input bias current 1
Feedback voltage 1
Voltage gain
Sinking current
Source current
[SW]
ON resistance N-channel
Leak current N-channel
Maximum duty cycle
[Overcurrent protection]
Saw current limit
2. Regulator controller
Parameter
[Error amp]
VDD voltage
Maximum base current
Line regulation
Load regulation
Off threshold voltage
On threshold voltage
VDD
I
BMAX
RegI
RegL
V
ROFF
V
RON
3.2
4
—
—
1.7
1.6
3.3
7
10
10
1.8
1.7
3.4
11
30
50
1.9
1.8
V
mA
mV
mV
V
V
VCC = 4.5 V to 5.5 V
Io = 10 mA to 100 mA
Symbol
Limit
Min.
Typ.
Max.
Unit
Conditions
Insw
2
3
—
A
*
R
ON_N
I
LEAKN
D
MAX
50
—
75
200
—
85
600
10
95
mΩ
μA
%
*
Vsw = 18 V
I
FB1
V
FB1
AV
IoI
Ioo
—
1.227
—
25
-100
0.1
1.240
200
50
-50
0.5
1.253
—
100
-25
μA
V
V/V
μA
μA
Buffer
*
V
FB
= 1.5 V V
COMP
= 0.5 V
V
FB
= 1.0 V V
COMP
= 0.5 V
Iso
Isi
6
0.1
10
0.2
14
1.0
μA
mA
Vss = 0.5 V
Vss = 0.5 V,VDD = 1.65 V
[Under-voltage lockout protection]
This
product is not designed for protection against radio active rays.
* Design guarantee (No total shipment inspection is made.)
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© 2009 ROHM Co., Ltd. All rights reserved.
2/17
2009.07 - Rev.B
BD8153EFV
Technical Note
●Electrical
Characteristics (Unless otherwise specified, VCC = 5 V; Vo1 = 15 V; Vo2 = 25 V; Ta = 25°C)
3.Charge pump
Limit
Parameter
Symbol
Unit
Conditions
Min.
Typ.
Max.
[Error amp]
Input bias current 2
Input bias current 3
Feedback voltage 2
Feedback voltage 3
[Delay start block]
Source current
Sinking current
Startup voltage
[Switch]
ON resistance N-channel
ON resistance P-channel
[Diode]
Voltage of diode
[Gate shading block]
ON resistance N-channel
ON resistance P-channel
Leak current N-channel
Leak current P-channel
High voltage
Low voltage
Input current
4.Overall
Parameter
[Reference block]
Reference voltage
Drive current
Load regulation
[Oscillator]
Oscillating frequency
[Oscillator]
DET 1 On threshold voltage
DET 1 Off threshold voltage
DET 2 On threshold voltage
DET 2 Off threshold voltage
DET 3 On threshold voltage
DET 3 Off threshold voltage
DET 4 On threshold voltage
DET 4 Off threshold voltage
[Device]
Average circuit current
Icc
0.5
2
5
mA
No switching
This
product is not designed for protection against radio active rays.
* Design guarantee (No total shipment inspection is made.)
I
FB2
I
FB3
V
FB2
V
FB3
I
DSO
I
DSI
V
ST
R
ON_NC
R
ON_PC
Vf
R
ON_NGS
R
ON_PGS
I
LEAK_NG
S
I
LEAK_PG
S
IGH
IGL
IIG
—
—
1.183
0.15
3
0.1
0.45
0.5
0.5
600
2
2
—
—
VDD × 0.7
—
8
0.1
0.1
1.240
0.2
5
0.5
0.60
2
4
710
10
10
—
—
VDD
0
16.5
0.5
0.5
1.307
0.25
7
1.0
0.75
4
8
800
20
20
10
10
—
VDD × 0.3
30
μA
μA
V
V
μA
mA
V
Ω
Ω
mV
Ω
Ω
μA
μA
V
V
μA
IG = 3.3 V
Io = 10 mA *
Io = -10 mA *
Io = 10 mA
Io = 10 mA *
Io = -10 mA *
V
DLS
= 0.5V
V
DLS
= 0.5V
Symbol
Limit
Min.
1.215
—
—
0.94
1.7
1.6
1.02
0.90
0.25
0.35
1.02
0.90
Typ.
1.240
23
1
1.1
1.8
1.7
1.12
1.00
0.30
0.41
1.12
1.00
Max.
1.265
—
10
1.265
1.9
1.8
1.22
1.10
0.35
0.47
1.22
1.10
Unit
Conditions
V
REF
I
REF
∆V
Fosc
V
DON1
V
DOFF1
V
DON2
V
DOFF2
V
DON3
V
DOFF3
V
DON4
V
DOFF4
V
mA
mV
MHz
V
V
V
V
V
V
V
V
V
REF
= 0 V
I
REF
= -1 mA
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© 2009 ROHM Co., Ltd. All rights reserved.
3/17
2009.07 - Rev.B
BD8153EFV
●
Reference Data (Unless otherwise specified, Ta = 25°C)
1
Technical Note
10
SUPPLY CURRENT : IDD[mA]
125℃
8
6
4
2
1.26
REF VOLTAGE : VREF[V]
SUPPLY CURRENT : ICC[mA]
0.8
1.25
0.6
25℃
0.4
1.24
125
℃
25
℃
1.23
0.2
-40℃
-40
℃
0
0
1.5
3
4.5
6
0
0
1.5
3
4.5
6
1.22
-50
-25
0
25
50
75
100 125
SUPPLY VOLTAGE : VCC [V]
SUPPLY VOLTAGE : VDD[V]
AMBIENT TEMPERATURE : Ta[
℃
]
Fig. 1 Total Supply Current 1
1.6
REF VOLTAGE : VREF[V]
REF VOLTAGE : VREF[V]
1.6
Fig. 2 Total Supply Current 2
12
SS SOURCE CURRENT : ISS[μA] .
10
8
6
4
2
0
0
5
10
15
20
25
30
Fig. 3 Internal Reference
Temperature
1.2
1.2
0.8
0.8
0.4
0.4
0
0
1.5
3
4.5
6
SUPPLY VOLTAGE : VCC[V]
0
REF CURRENT : IREF[mA]
0
1.5
3
4.5
6
SUPPLY VOLTAGE : VDD[V]
Fig. 4 Internal
Reference Line Regulation
12
DLS SOURCE CURRENT : IDLS[μA]
10
8
6
4
2
0
0
1.5
3
4.5
6
SUPPLY VOLTAGE : VDD[V]
SWITCHHING FREQUENCY : f [MHz]
2
Fig. 5 Internal
Reference Load Regulation
5
4
3
2
1
0
-25
0
25
50
75
100 125
0
Fig. 6 SS Source Current
1.5
1
0.5
0
-50
-40
VDD VOLTAGE : VDD[V]
2
4
6
8
10
AMBIENT TEMPERATURE : Ta[
℃
]
BASE CURRENT : IBASE[mA]
Fig. 7 DLS Source Current
Fig. 8 Switching Frequency
Temperature
200
OUTPUT VOLTAGE : Vcp[mV].
160
GS VOLTAGE : Vgs[V]
Fig. 9 REG Current Capacity
200
160
120
80
40
0
0
0.2
0.4
0.6
0.8
1
SW CURRENT : ISW [A]
1
0.8
0.6
N channel
0.4
0.2
0
0
20
40
60
80
100
SW VOLTAGE : VSW [V]
120
N channel
80
P channel
40
0
INPUT CURRENT : Icp[mA]
P channel
0
20
40
60
80
100
GS CURRENT : Igs[mA]
Fig. 10
SW On Resistance
Fig. 11 Charge Pump
On Voltage
Fig. 12 Gate Shading
On Voltage
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© 2009 ROHM Co., Ltd. All rights reserved.
4/17
2009.07 - Rev.B
BD8153EFV
●Reference
Data (Unless otherwise specified, Ta = 25°C)
15
OUTPUT VOLTAGE : VDD [V]
OUTPUT VOLTAGE : VDD[V]
5
4
3
2
1
0
0
1.5
3
4.5
6
0
0.4
0.8
1.2
1.6
2
SUPPLY VOLTAGE : VCC [V]
OUTPUT CURRENT : IDD[mA]
12.5
12.4
Vo1 VOLTAGE : VO1[V]
12.3
12.2
12.1
12.0
11.9
11.8
11.7
11.6
11.5
2
3
Technical Note
10
5
0
4
5
6
SUPPLY VOLTAGE : VCC[V]
Fig. 13 Vo1 Line Regulation
14
OUTPUT VOLTAGE : VO1[V]
13V
EFFICIENCY [ % ]
Fig. 14 VDD Load Regulation
100
Fig. 15 Vo1 Line Regulation
100
12V
12
EFFICIENCY [ % ]
13
95
90
90
10.8V 12V 13V
80
11
10.8V
85
70
10
0
100 200
300
400
500 600
700
OUTPUT CURRENT : IO[mA]
80
0
150
300
450
600
OUTPUT CURRENT : IO1[mA]
60
2.5
3
3.5
4
4.5
5
5.5
6
SUPPLY VOLTAGE : VCC[V]
Fig. 16 Vo1 Load Regulation
Fig. 17 Efficiency vs Output Current
Fig. 18 Efficiency vs Power
Supply Voltage
24
OUTPUT VOLTAGE : VO2[V]
23.8
23.6
23.4
23.2
23
1600
MAXIMUM CURRENT : IoMAX[mA]
OUTPUT VOLTAGE : VO2[V]
23.8
1200
23.7
800
23.6
400
23.5
0
1.5
23.4
3
4.5
6
10
11.5
13
14.5
16
SUPPLY VOLTAGE : VCC[V]
INPUT VOLTAGE : Vo1[v]
0
50
100
150
OUTPUT CURRENT : IO2[mA]
Fig. 19 Power Supply Voltage vs
Max. Output Current Capacity
-6
OUTPUT VOLTAGE : VO3[V]
OUTPUT VOLTAGE : VO1[V]
-6
Fig. 20 Vo2 Line Regulation
Fig. 21 Vo2 Load Regulation
-6.1
-6.1
IG
-6.2
-6.2
VO2GS
-6.3
-6.3
-6.4
10
11
12
13
14
15
INPUT VOLTAGE : VO1[V]
-6.4
0
50
100
150
200
OUTPUT CURRENT : IO[mA]
Fig. 22 Negative-side Charge
Pump Line Regulation
Fig. 23 Negative-side Charge
Pump Load Regulation
Fig. 24 Gate Shading
Output Waveform
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© 2009 ROHM Co., Ltd. All rights reserved.
5/17
2009.07 - Rev.B
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