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BD8184MUV PDF 데이터시트 : 부품 기능 및 핀배열

부품번호 BD8184MUV
기능 Power Supply ICs
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BD8184MUV 데이터시트, 핀배열, 회로
Power Supply ICs for TFT-LCD Panels
Multi-channel System
Power Supply IC
for Small to Middle PANEL
BD8184MUV
No.11035EAT18
Description
The BD8184MUV is a system power supply for the TFT-LCD panels used for liquid crystal Monitors and Note Display.
Incorporates high-power FET with low on resistance for large currents that employ high-power packages, thus driving large
current loads while suppressing the generation of heat. A charge pump controller is incorporated as well, thus greatly
reducing the number of application components. Also Gate Shading Function is included.
Features
1) Boost DC/DC converter; 18 V / 2.5 A switch current. (Target specification is ±1% accurate.)
2) Switching frequency: 1.2 MHz
3) Operational Amplifier (short current 200mA)
4) Incorporates Positive / Negative Charge-pump Controllers.
5) Gate Shading Function
6) VQFN024V4040 Package (4.0 mm x 4.0 mm)
7) Protection circuits: Under Voltage Lockout Protection Circuit
Thermal Shutdown Circuit (Latch Mode)
Over Current Protection Circuit (AVDD)
Timer Latch Mode Short Circuit Protection (AVDD SRC VGL)
Over / Under Voltage Protection Circuit for Boost DC/DC Output
No SCP time included (160ms from UVLO-off)www.DataSheet.co.kr
Applications
Power supply for the TFT-LCD panels used for LCD Monitors and Note Display
www.rohm.com
© 2011 ROHM Co., Ltd. All rights reserved.
1/17
2011.11 - Rev.A
Datasheet pdf - http://www.DataSheet4U.net/




BD8184MUV pdf, 반도체, 판매, 대치품
BD8184MUV
Technical Note
Electrical characteristics (unless otherwise specified VIN = 3.3V, AVDD = 10V and TA=25) (Continued)
Parameter
Limits
Symbol
Unit
Min Typ Max
Condition
Negative Charge pump driver (VGL)
FBN Regulation Voltage
VFBN
235 250 265 mV
FBN Fault Trip Level
VTL_FBN
400
450
500 mV VFBN rising
FBN Input Bias Current
IFBN - 0.1 1 µA VFBN= 0.1V
Oscillator frequency
FCPN
500 600 700 kHz
DRN Leakage Current
Positive Charge pump driver (SRC)
FBP Regulation Voltage
IDRN_L
VFBP
- 0 10 µA VFBN=1.0V
1.23 1.25 1.27 V
FBP Fault Trip Level
VTL_FBP
0.95
1.0
1.05
V VFBP falling
FBP Input Bias Current
IFBP - 0.1 1 µA VFBP= 1.5V
Oscillator frequency
FCPP
500 600 700 kHz
DRP Leakage Current
IDRP_L
-
0 10 µA VFBP= 1.5V
Soft-Start Time
Gate Shading Function (GSOUT)
DLY Source Current
TSSP
IDLY
- 3.4 - ms
4 5 6 µA
DLY Threshold Voltage
CTL Input Voltage High
VTL_DLY
VIN_H
1.22
2.0
1.25
www.DataSheet.co.kr
-
1.28
-
V VDLY falling
V
CTL Input Voltage Low
VIN_L
-
- 0.5 V
CTL Input Bias Current
ICTL - 0 - µA VRSTIN=0 to VIN-0.3
Propagation delay time (Rising)
TGS_R
-
100
- ns VSRC= 25V
Propagation delay time (Falling)
TGS_F
-
100
- ns VSRC= 25V
SRC -GSOUT ON Resistance
RGS_H
-
15
- Ω VDLY = 1.5V
GSOUT-RE ON Resistance
RGS_M
-
30
- Ω VDLY = 1.5V
GSOUT-GND ON Resistance RGS_L - 2.5 - kΩ VDLY = 1.0V
This product is not designed for protection against radio active rays.
www.rohm.com
© 2011 ROHM Co., Ltd. All rights reserved.
4/17
2011.11 - Rev.A
Datasheet pdf - http://www.DataSheet4U.net/

4페이지










BD8184MUV 전자부품, 판매, 대치품
BD8184MUV
Technical Note
Block Diagram
VREF
12
(1.25V)
Reference
Voltage
Error Amplifier
FB
17
1.25V
COMP
16
Oscillator
13
VIN
0.25V
Fall Fall/Thermal
Control
Comparator
Digital Control
Block
Sequence
Control
Current Sense and
Limit
FBN
11
FBP
10
INN
2
INP
1
DLY
24
CTL
8
RE
21
GSOUT
22
RSTIN
15
0.25V
Negative
Charge Pump
1.25V
Positive
Charge pump
AVDD
High Voltage
Switch Control
1.25V
160ms
AVDD
AGND1
AVDD
AGND1
Pin Configuration
SW
20
PGND
18
PGND
19
INP 1
INN 2
AVDD
5
VCOM 3
DRN
7
DRP
6
VCOM
3
AGND1
4
AGND1 4
AVDD 5
DRP 6
SRC
23
RST
9
2
3
BD8184MUV
Fig.24 Pin Configuration
AGND2
14
Fig.23 Block Diagram
www.DataSheet.co.kr
18 PGND
17 FB
16 COMP
15 RSTIN
14 AGND2
13 VIN
Package Dimension
VQFN024V4040
4.0±0.1
D8184
Marking
LOT
1PIN MARK
S
0.08 S
C0.2 2.4±0.1
16
24 7
19
18
0.75
0.5
12
13
0.25+-00..0054
(Unit : mm)
Fig.25 Package Dimension (UNIT : mm)
www.rohm.com
© 2011 ROHM Co., Ltd. All rights reserved.
7/17
2011.11 - Rev.A
Datasheet pdf - http://www.DataSheet4U.net/

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BD8184MUV

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