NJU7678MLK 查看數據表（PDF） - Japan Radio Corporation
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NJU7678MLK Datasheet PDF : 9 Pages
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NJU7678
ELECTRICAL CHARACTERISTICS (V+=3.3V, RT=47kΩ, Ta=25°C)
PARAMETER
SYMBOL
TEST CONDITION
Under Voltage Lockout Block
ON Threshold Voltage
OFF Threshold Voltage
Hysteresis Voltage
VT_ON
VT_OFF
VHYS
V+ = L → H
V+ = H → L
Soft Start Block
Soft Start Time
TSS
VT_ON → Duty=80%
Short Circuit Protection Block
Input Threshold Voltage
Charge Current
Latch Mode
ON Threshold Voltage
Latch Mode
OFF Threshold Voltage
VT_PC
ICHG
VT_LA
FB Pin
VSCP=0V
SCP Pin
VT_LAOFF SCP Pin
Oscillator Block
RT Pin Voltage
Oscillation Frequency
Oscillate Supply Voltage
Fluctuations
Oscillate Temperature
Fluctuations
VRT
fOSC
fDV
V+=2.5V to 7V
fDT
Ta=-40°C to +85°C
Error Amplifier Block
Reference Voltage
Input Bias Current
Open Loop Gain
Gain Bandwidth Product
Output Source Current
Output Sink Current
VB
IB
AV
GB
IOM+
VFB=1V, VIN-=0.9V
IOM-
VFB=1V, VIN-=1.1V
PWM Comparator Block
Input Threshold Voltage
Maximum Duty Cycle
VT_0
VT_50
MAXDUTY_1
MAXDUTY_2
Duty=0%
Duty=50%
VFB=0.9V
VFB=0.9V, RDTC=43kΩ
Output Block
Drain to Source ON Resistance
Drain to Source Leak Current
RDS(ON)
RDS(ON)_2.5
IDS_LEAK
IO=3A
IO=3A, V+=2.5V
VDS=60V, VIN-=1.1V
General Characteristic
Quiescent Current
IDD
VIN-=1.1V, VFB=0.5V
MIN. TYP. MAX. UNIT
1.6
1.7
1.8
V
1.5
1.6
1.7
V
60
100
–
mV
2
4
8
ms
0.95
1.00
1.05
V
1.5
2
2.5
µA
0.90
1.00
1.10
V
0.35
0.6
0.85
V
-8%
0.5
+8% V
630
700
770 kHz
–
1
–
%
–
3
–
%
-1.0% 1.00 +1.0% V
-0.1
–
0.1
µA
–
80
–
dB
–
1
–
MHz
20
35
50
µA
1.0
4.0
12
mA
0.10
0.16
0.22
V
0.36
0.42
0.48
V
85
90
95
%
45
55
65
%
–
0.060 0.080 Ω
–
0.065 0.085 Ω
–
–
0.1
µA
–
6.5
7.5 mA
-4-
Ver.2010-10-26
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