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參數(shù)資料
| 型號(hào)： | BL8501 |
| 廠商： | 上海貝嶺股份有限公司 |
| 英文描述： | Step down DC/DC controller |
| 中文描述： | 降壓DC / DC控制器 |
| 文件頁(yè)數(shù)： | 3/10頁(yè) |
| 文件大?。?/td> | 421K |
| 代理商： | BL8501 |
http://www.belling.com.cn
- 3-
8/8/2006
Total
10
Pages
BL8501
ABSOLUTE MAXMUM RATINGS
Symbol
Item
Rating
Unit
V
IN
V
IN
Supply Voltage
12
V
V
EXT
EXT Pin Output Voltage
-0.3 ~ VIN +0.3
V
V
CE
CE Pin Input Voltage
-0.3 ~ VIN +0.3
V
V
FB
V
FB
Pin Input Voltage
-0.3 ~ VIN +0.3
V
I
EXT
EXT Pin Inductor Drive Output Current
20
mA
P
D
Power Dissipation
100
mW
T
opt
Operating Temperature Range
-20 ~ +85
T
stg
Storage Temperature Range
-55 ~ +125
ELECTRICAL CHARACTERISTICS
Symbol
Item
Conditions
Min.
Typ.
Max.
Unit
V
IN
Operating Input Voltage
3.5
12
V
V
FB
Feedback Voltage
V
IN
=V
CE
=8V,
I
FB
=-100mA
0.98
1.00
1.02
V
V
FB
/
T
Feedback Voltage
Temperature Coefficient
-20
Topt
85
100
ppm/
fosc
Oscillator Frequency
V
IN
=V
CE
=8V,
I
FB
=-100mA
400
500
600
KHz
f
OSC
/
T
Oscillator Frequency
Temperature Coefficient
-20
Topt
85
0.2
%/
I
DD
1
Supply Current 1
V
IN
= V
CE
= V
FB
=8.0V
65
A
Istb
Standby Current
V
IN
=8.0V,
V
CE
=V
FB
=0V
0
1
A
I
EXTH
EXT “H” Output Current
V
IN
= 8V, V
EXT
= 7.9V,
V
CE
=0, V
FB
=8V
-7.8
mA
I
EXTL
EXT “L” Output Current
V
IN
= 8V, V
EXT
= 0.1V,
V
CE
= 8V, V
FB
= 0V
6.1
mA
I
CEH
CE “H” Input Current
V
IN
= V
CE
= V
FB
=8.0V
0
0.5
A
I
CEL
CE “L” Input Current
V
IN
= V
FB
=8.0V, V
CE
=
0V
-0.5
0
A
V
CEH
CE “H” Input Voltage
V
IN
= 8V, V
FB
= 0V
1.5
V
V
CEL
CE “L” Input Voltage
V
IN
= 8V, V
FB
= 0V
0.3
V
Maxdty
Oscillator Maximum Duty
Cycle
100
%
Tstart
Delay Time by Soft-start
function
V
IN
= 8V, I
FB
= -10mA
V
CE
= 0
>8V
3
7
10
ms
Tprot
Delay Time for protection
circuit
V
IN
= V
CE
= 8V
V
FB
= 2.5V
>0V
150
200
250
s
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
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| BL8503 | 制造商:BELLING 制造商全稱:SHANGHAI BELLING CO., LTD. 功能描述:250mA CMOS Low Dropout Voltage Low consumption Regulator |
| BL8503-12C1AB | 制造商:BELLING 制造商全稱:SHANGHAI BELLING CO., LTD. 功能描述:250mA CMOS Low Dropout Voltage Low consumption Regulator |
| BL8503-12C1RM | 制造商:BELLING 制造商全稱:SHANGHAI BELLING CO., LTD. 功能描述:250mA CMOS Low Dropout Voltage Low consumption Regulator |
| BL8503-12C1SA | 制造商:BELLING 制造商全稱:SHANGHAI BELLING CO., LTD. 功能描述:250mA CMOS Low Dropout Voltage Low consumption Regulator |
| BL8503-12C1SM | 制造商:BELLING 制造商全稱:SHANGHAI BELLING CO., LTD. 功能描述:250mA CMOS Low Dropout Voltage Low consumption Regulator |
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