参数资料
| 型号： | BD9862MUV-E2 |
| 厂商： | Rohm Semiconductor |
| 文件页数： | 1/19页 |
| 文件大小： | 0K |
| 描述： | IC PMIC PS TFT-LCD 24VQFN |
| 标准包装： | 1 |
| 应用： | LCD 显示器 |
| 电源电压： | 1.8 V ~ 4.5 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 24-VFQFN 裸露焊盘 |
| 供应商设备封装： | VQFN024V4040 |
| 包装： | 标准包装 |
| 其它名称： | BD9862MUV-E2DKR |
Power Supply IC Series for TFT-LCD Panels
5V Input Multi-channel
System Power Supply IC
BD9862MUV
No.10035EAT16
● Description
The BD9862MUV is a 3ch system power supply for mobile TFT liquid crystal panels.Operable at VBAT=1.8V, CH2 & CH3
adopts the original PWM/PFM automatic switching control charge pump and realizes high efficiency in full-load range.
● Features
1) Input voltage range: 1.8V~4.5V (The input voltage can be 5.5V if a double charge pump is not used)
2) The step-up switching regulator has a built-in output FET (CH1)
3) There is a built-in PWM/PFM automatic switching charge pump circuit with a fixed PWM terminal (CH2,3)
4) Switching regulator oscillation frequency: MHz(typ.)
5) Charge pump oscillation frequency: 500kHz(typ.)
6) There is a built-in circuit to discontinue output (timer latch type) in the event of overload
7) Package VQFN024V4040
● Applications
Small & medium TFT liquid crystal displays etc.
● Absolute Maximum Ratings (Ta = 25°C)
Parameter
Maximum adding power supply voltage
Symbol
VBAT
LX
Ratings
-0.3 ~ 7
-0.3 ~ 18
Unit
V
FB1, INV1, INV2, UVLOSET, C2N,
Maximum adding voltage
VIN2A, CN, CP, CPOUT, REGOUT,
-0.3~7
V
PWM, RT ,VREF ,NON3
VIN3, C3P, Vo2, C2P, VIN2B
-0.3~15.5
Power dissipation
Operating temperature range
Storage Temperature Range
Junction temperature
Pd
Topr
Tstg
Tjmax
0.34(*1)
0.70(*2)
-40 ~ +85
-55 ~ +150
+150
W
℃
℃
℃
(*1) When used as a stand-alone IC (for Ta=25 ℃ and over), the value is reduced by 27mW/ ℃ .
(*2) When used for Printed Circuit Boards (glass epoxy board of 74.2mm×74.2mm×1.6mm) mounting
for Ta=25 ℃ and over, the value is reduced by 5.6mW/ ℃ .
● Operating Conditions(Ta=25 ℃ )
Parameter
Power Supply Voltage
CH1Output Voltage
CH2 Output Voltage
CH3 Output Voltage
Starting capacity, adding charge pump
flying capacitor
Reversing capacity charge pump
flying capacitor
Starting charge pump Output capacitance
Switching regulator oscillation frequency
Charge pump oscillation frequency
CH1 PowerNMOS Drain current
Symbol
VBAT
Vo1
Vo2
Vo3
Cflys,Cflya
Cflyi
CCPOUT
fOSC1
fOSC2
Iidn1
MIN
1.8
-
-
-15
0.1
0.022
1.0
700
350
-
Ratings
TYP
-
-
-
-
0.22
0.047
2.0
1.0
500
-
MAX
4.5 ( ※ 1)
15
15
-
-
-
-
1.4
700
1.0
Unit
V
V
V
V
μF
μF
μF
MHz
kHz
A
condition
CCPOUT ≧ Cfly*10
RRT=82k ? ~180k ?
RRT=82k ? ~180k ?
( ※ 1) When using a double charge pump for starting. 5.5V when not using a double charge pump
www.rohm.com
? 2010 ROHM Co., Ltd. All rights reserved.
1/16
2010.03 - Rev.A
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