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NJU7680V Datasheet(PDF) 6 Page - New Japan Radio

Part # NJU7680V
Description  2ch switching regulator IC
Download  11 Pages
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Manufacturer  NJRC [New Japan Radio]
Direct Link  http://www.jrc.co.jp/eng/index.html
Logo NJRC - New Japan Radio

NJU7680V Datasheet(HTML) 6 Page - New Japan Radio

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NJU7680
- 6 -
Ver.2010-03-31
■ELECTRICAL CHARACTERISTICS (V+=VCE1=VCE2=3.3V, RT=47kΩ, Ta=25°C)
PARAMETER
SYMBOL
TEST CONDITION
MIN.
TYP.
MAX.
UNIT
Error Amplifier Block
Reference Voltage 1
VB1
-1.5%
1.00
+1.5%
V
Reference Voltage 2
VB2
-1.5%
1.00
+1.5%
V
Input Bias Current 1
IB1
-0.1
0.1
µA
Input Bias Current 2
IB2
-0.1
0.1
µA
Open Loop Gain
AV
80
dB
Gain Bandwidth Product
GB
1
MHz
Output Source Current 1
IOM+1
VFB1=1V, VIN-1=0.9V
17
32
47
µA
Output Source Current 2
IOM+2
VFB2=1V, VIN-2=0.9V
17
32
47
µA
Output Sink Current 1
IOM-1
VFB1=1V, VIN-1=1.1V
0.5
2.5
5.0
mA
Output Sink Current 2
IOM-2
VFB2=1V, VIN-2=1.1V
0.5
2.5
5.0
mA
PWM Comparate Block
VT_0_1
Duty1=0%
0.15
0.22
0.29
V
Input Threshold Voltage 1
VT_50_1
Duty1=50%
0.46
0.53
0.60
V
VT_0_2
Duty2=0%
0.15
0.22
0.29
V
Input Threshold Voltage 2
VT_50_2
Duty2=50%
0.46
0.53
0.60
V
MAXDUTY11 VFB1=0.9V
85
90
95
%
Maximum Duty Cycle 1 (*4)
MAXDUTY12 VFB1=0.9V, VDTC1=0.53V
40
50
60
%
MAXDUTY21 VFB2=0.9V
100
%
Maximum Duty Cycle 2 (*4)
MAXDUTY22 VFB2=0.9V, VDTC2=0.53V
40
50
60
%
Output Block
Output High Level
ON Resistance 1
ROH1
IOUT1=-20mA
5
10
Output High Level
ON Resistance 2
ROH2
IOUT2=-20mA
5
10
Output Low Level
ON Resistance 1
ROL1
IOUT1=+20mA
5
10
Output Low Level
ON Resistance 2
ROL2
IOUT2=+20mA
5
10
ON/OFF Block
ON Control Voltage 1
VON1
CE1= L → H
1.2
V+
V
OFF Control Voltage 1
VOFF1
CE1= H → L
0.6
V
ON Control Voltage 2
VON2
CE2= L → H
1.2
V+
V
OFF Control Voltage 2
VOFF2
CE2= H → L
0.6
V
General Characteristics
Quiescent Current 1
IDD1
RL=Non Load
1
1.6
mA
Quiescent Current 2
IDD2
Per channel ON
0.7
1.2
mA
Standby Current 1
IDDSTB1
VCE1=VCE2=0V
3.0
µA
Standby Current 2
IDDSTB2
RT=OPEN
1.0
µA


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