BP5319 查看數據表（PDF） - ROHM Semiconductor
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BP5319 Datasheet PDF : 6 Pages
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BP5319 / BP5319X
Pin descriptions
Pin No. Pin name
1
CO
2
VOUT
3
Vref
4, 7
GND
8
VCTL
9
VIN
Function
Output smoothing capacitor connection pin; connect a
low-impedance capacitor with a recommended capa-
citance of 47µF between this pin and GND.
Output pin
Output voltage adjustment pin for contrast; output voltages
is adjusted by connecting a resistor between pins 2 and 3
or pins 3 and 4.
Ground pin; pins 4 and 7 are internal connection.
Output ON / OFF control pin; output starts when the pin is
LOW level or OPEN, and stops when the pin HIGH level.
Input pin; connect a low-impedance capacitor with a recom-
mended capacitance of 100mF between this pin and GND.
Electrical characteristics (Unless otherwise noted, Ta=25°C)
Parameter
Symbol Min.
Typ. Max.
Input voltage
VIN
4.5
−
5.5
Output current
IOUT
−
−
30
Output voltage
VOUT −24.75 −24.00 −23.25
Line regulation
∆V1
−
−
0.24
Load regulation
∆V2
−
−
0.24
Output voltage temperature coefficient ∆Vt
−
−10
−
Ripple noise voltage
ν1
−
−
150
Conversion efficiency
η
70
75
−
ON / OFF CTL voltage when OFF VCTL
2.0
−
−
ON / OFF CTL voltage when ON
VCTL
−
−
0.5
(Alternatively, when Open)
ON / OFF CTL input current
ICTL
−
100
150
Current consumption when OFF
IOFF
−
R1 resistance
R1
50
R2 resistance
R2
50
−
0.5
−
∞
−
∞
∗1 Measured with a bandwidth of 20MHz.
∗2 Ta=−10~60°C
Unit
Conditions
V
mA
V
VIN=5V, IOUT=25mA
V VIN=4.5~5.5V, IOUT=25mA
V
VIN=5V, IOUT=0~25mA
mV / °C VIN=5V, IOUT=25mA
∗2
mVPP VIN=5V, IOUT=25mA
∗1
% VIN=5V, IOUT=25mA
V
VIN=5V
V
VIN=5V
µA VIN=4.5~5.5V, VCTL=5V ∗2
mA VIN=4.5~5.5V, VCTL=5V ∗2
kΩ VIN=4.5~5.5V, VCTL=5V ∗2
kΩ VIN=4.5~5.5V, VCTL=5V ∗2
2/5
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