参数资料
型号: BD9862MUV-E2
厂商: Rohm Semiconductor
文件页数: 14/19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
BD9862MUV
● Input / Output Equivalent Circuit
Technical Note
LX
INV1, INV2, NON3
FB1
REGOUT
UVLOSET
VBAT
REGOUT
LX
INV1,2
NON3
FB1
UVLOSET
VBAT
CN
CP, CPOUT
CPOUT
CP
REGOUT
CPOUT
REGOUT
PWM
PWM
REGOUT
CN
VBAT
RT, VREF
REGOUT
VIN2A, C2N
VIN2A
VIN2B
VO2, C2P
Vo2
VIN2B
C2N
C2P
RT,VREF
VIN3, C3P
VIN3
C3P
Fig.25 Input / Output Equivalent Circuit
● Points for attention on PCB layout
① Place the resistors and capacitors, that are connected to RT, INV1, FB1, INV2, NON3 and VREF, close to the terminals to
avoid being affected by the wirings, where switching is large, such as LX1 wiring and flying capacitor wiring etc.
② Place the inductor, schottky diode and flying capacitor close to the IC.
③ Mount in such a way that the back side of the package serves as the GND potential which covers the largest space in the
PCB. Heat dissipation performance is improved.
www.rohm.com
? 2010 ROHM Co., Ltd. All rights reserved.
14/16
2010.03 - Rev.A
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