參數(shù)資料
型號(hào): BP5326
廠商: Rohm CO.,LTD.
英文描述: DC/DC converter step-up
中文描述: 直流/直流轉(zhuǎn)換器升壓
文件頁(yè)數(shù): 2/4頁(yè)
文件大?。?/td> 85K
代理商: BP5326
BP5326
Power Module
z
Pin descriptions
Rev.A
2/3
Pin name
1
2
V
OUT
Output pin.
3
Vref
Output voltage adjustment pin for contrast ; output
voltage is adjusted by connecting a resistor between
pins 2 and 3 or pins 3 and 4.
GND
Ground pin.
8
9
V
IN
4, 7
V
CTL
Co
Pin No.
Function
Output ON/OFF control pin ; output starts when the
pin is HIGH level, and stops when the pin is LOW
or OPEN.
Input pin ; connect a low-impedance capacitor with
a recommended capacitance of 100
μ
F between
this pin and GND.
Output smoothing capacitor connection pin ; connect
a low-impedance capacitor with a recommended
capacitance of 47
μ
F between this and GND.
z
Electrical characteristics
(Unless otherwise noted, Ta=25
°
C, V
CTL
=5V, R1 to R2 resistors are disconnected)
Parameter
Symbol
Min.
Typ.
Max.
Unit
Conditions
Input voltage
V
IN
4.5
5.0
5.5
V
Output current
I
OUT
25
mA
Output voltage
V
OUT
1
28.0
29.5
31.0
V
Output voltage when OFF
V
OUT
2
0.3
V
Ripple noise voltage
100
200
mV
P-P
Efficiency
η
67
77
%
ON / OFF CTL voltage
when ON
V
CTL
1.5
V
V
CTL
0.5
V
(Alternatively, when OPEN)
I
CTL
500
μ
A
Current consumption
when OFF
50
μ
A
ON / OFF CTL voltage
when OFF
ON / OFF CTL current
I
OFF
Measured with a band width of 20 MHz.
z
Measurement circuit / Application example
V
IN
=
5V, V
CTL
=
0V
V
IN
=
5V, V
CTL
=
1.5V
V
IN
=
5V, Vo
<
0.3V
V
IN
=
5V, Vo
>
28V
V
IN
=
5V, I
OUT
=
20mA
V
IN
=
5V, I
OUT
=
20mA
V
IN
=
4.5 to 5.5V, V
CTL
=
0V
V
IN
=
4.5 to 5.5V, I
OUT
=
0 to 25mA
υ
1
+
C2
R1
R2
V
OUT
GND
1
2
3
4
7
8
9
+
C1
V
CTL
V
IN
GND
BP5326
C1 : 100mF / 16V
(Low impedance)
C2 : 47mF / 35V
(Low impedance)
R1, 2 :
Resistors for adjusting output voltage (Contrast adjustment)
Fig.1
Be sure to use
fuse for safety
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