bp5326 ROHM Co. Ltd., bp5326 Datasheet - Page 2

• Manufacturer Part Number: bp5326
• Description: Dc/dc Converter Step-up
• Manufacturer: ROHM Co. Ltd.

Power Module
∗ Measured with a band width of 20 MHz.
Pin No.
Input voltage
Output current
Output voltage
Output voltage when OFF
Ripple noise voltage
Efficiency
ON / OFF CTL voltage
when ON
ON / OFF CTL voltage
when OFF
ON / OFF CTL current
Current consumption
when OFF
Pin descriptions
Electrical characteristics (Unless otherwise noted, Ta=25GC, V
Measurement circuit / Application example
4, 7
1
2
3
8
9
Parameter
GND
V
Pin name
OUT
GND
V
V
Vref
Co
V
OUT
CTL
IN
C2
Output smoothing capacitor connection pin ; connect
a low-impedance capacitor with a recommended
capacitance of 47µF between this and GND.
Output pin.
Output voltage adjustment pin for contrast ; output
voltage is adjusted by connecting a resistor between
pins 2 and 3 or pins 3 and 4.
Ground pin.
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 100µF between
this pin and GND.
+
1
Symbol
V
V
V
V
I
I
I
V
OUT
OUT
OUT
υ1
CTL
OFF
η
CTL
CTL
2
IN
R1
1
2
3
R2
(Alternatively, when OPEN)
4
Min.
28.0
4.5
1.5
BP5326
67
−
−
−
−
−
−
Fig.1
Function
Typ.
29.5
100
5.0
77
−
−
−
−
−
−
7
V
CTL
8
Max.
31.0
+
200
500
5.5
0.3
0.5
25
50
−
−
9
Be sure to use
fuse for safety
C1 : 100mF / 16V
C2 : 47mF / 35V
R1, 2 :
C1
CTL
=5V, R1 to R2 resistors are disconnected)
Resistors for adjusting output voltage (Contrast adjustment)
mV
Unit
mA
µA
µA
%
V
V
V
V
V
P-P
(Low impedance)
(Low impedance)
V
GND
V
V
V
V
V
V
V
V
IN
IN
IN
IN
IN
IN
IN
IN
IN
= 4.5 to 5.5V, I
= 4.5 to 5.5V, V
= 5V, I
= 5V, I
= 5V, Vo>28V
= 5V, Vo<0.3V
= 5V, V
= 5V, V
OUT
OUT
CTL
CTL
Conditions
= 20mA
= 20mA
= 1.5V
= 0V
−
−
OUT
CTL
= 0 to 25mA
∗
= 0V
Rev.A
BP5326
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