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BD9851EFV
EEWorld咨询电话：82357002，82350740－8068 邮件咨询：datasheet@eeworld.com.cn 器件描述：2ch switching regulator controller 器件厂商：ROHM [Rohm] 厂商主页：http://www.rohm.com/ 文件大小：177.95KB 文件页数：3 PDF阅读：BD9851EFV.pdf (点击阅读器件资料) 摘要： Description Features Applications Dimension (Unit : mm) Derating : 8.0mW/?C for operation above Ta=25?C February, 2004 03W209A VCC 124 18 V fOSC 30010 3000 kHz Recommended Operating Conditions (Ta=25?C) Parameter Min. Max. UnitTyp.Symbol HTSSOP-B20 12 1324 1 0.08 M 0.08 S +0.05 +6 -4 +0.03 +0.05 -0.04 7 . 6 – 0 . 2 1 . 0 M a x . 7.8 – 0.1 4 0.17 0.65 0.2 0.325 0 . 5 3 – 0 . 1 5 0 . 8 5 – 0 . 0 5 0 . 0 8 – 0 . 0 5 0 . 0 8 – 0 . 0 5 1 – 0 . 2 5 . 6 – 0 . 1 Absolute Maximum Ratings (Ta=25?C) Power dissipation Operating temperature range Storage temperature range Parameter Symbol Limits Unit Pd Topr Tstg 20 1000 +85–40 ~ +150–55 ~ mW ?C ?C Power supply voltage Power supply voltage Oscillating frequency Vcc V BD9851EFV 2ch switching regulator controller BD9851EFV is a 2 channel DC/DC switching regulator controller. Switching of step-down and step-up for channel1 can be managed by setting pin. Channel 2 is available for step-down and inversion, suitable for various applications. This IC is available for 3MHz of switching frequency by high-speed driver technology and provides power configuration with space saving. 1) Built-in 2 channels for switching of step-down/step-up and step-down/inversion 2) FET (Nch/Pch) direct drive 3) 3MHz switching frequency available (Variable externally) 4) Power package of HTSSOP-B20 5) Built-in standby function TFT panel, TA/router, digital household appliances 相关器件：

BD9851EFV

EEWorld咨询电话：82357002，82350740－8068 邮件咨询：datasheet@eeworld.com.cn

器件描述：2ch switching regulator controller
器件厂商：ROHM [Rohm]
厂商主页：http://www.rohm.com/
文件大小：177.95KB
文件页数：3
PDF阅读：BD9851EFV.pdf (点击阅读器件资料)

摘要：
Description
Features
Applications
Dimension (Unit : mm)
*Derating : 8.0mW/?C for operation above Ta=25?C
February, 2004
03W209A
VCC 124 18 V
fOSC 30010 3000 kHz
Recommended Operating Conditions (Ta=25?C)
Parameter Min. Max. UnitTyp.Symbol
HTSSOP-B20
12
1324
1
0.08 M
0.08 S
+0.05
+6
-4
+0.03
+0.05
-0.04
7
.
6

–

0
.
2
1
.
0
M
a
x
.
7.8 – 0.1
4
0.17
0.65
0.2
0.325
0
.
5
3

–

0
.
1
5
0
.
8
5

–

0
.
0
5
0
.
0
8

–

0
.
0
5
0
.
0
8

–

0
.
0
5
1

–

0
.
2
5
.
6

–

0
.
1
Absolute Maximum Ratings (Ta=25?C)
Power dissipation
Operating temperature range
Storage temperature range
Parameter Symbol Limits Unit
Pd
Topr
Tstg
20
1000
+85–40 ~
+150–55 ~
mW
?C
?C
Power supply voltage
Power supply voltage
Oscillating frequency
Vcc V
*
BD9851EFV
2ch switching regulator controller
BD9851EFV is a 2 channel DC/DC switching regulator
controller. Switching of step-down and step-up for
channel1 can be managed by setting pin. Channel 2 is
available for step-down and inversion, suitable for various
applications. This IC is available for 3MHz of switching
frequency by high-speed driver technology and provides
power configuration with space saving.
1) Built-in 2 channels for switching of step-down/step-up
and step-down/inversion
2) FET (Nch/Pch) direct drive
3) 3MHz switching frequency available (Variable externally)
4) Power package of HTSSOP-B20
5) Built-in standby function
TFT panel, TA/router, digital household appliances

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