NJM2381D 데이터 시트보기 (PDF) - Japan Radio Corporation
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NJM2381D Datasheet PDF : 8 Pages
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NJM2381
sELECTRICAL CHARACTERISTICS (V+=6V,RT=33kΩ,CT=1000pF,Ta=25°C)
ERROR AMPLIFIER BLOCK
PARAMETER
SYMBOL
TEST CONDITION
MIN.
Reference Voltage2
VB2
0.51
Input Bias Voltage2
IB2
–
Open Loop Gain2
AV2
–
Gain Bandwidth Product2
GB2
–
Maximum Output Voltage2 VOM-2 RNF=100kΩ
–
(F.B Pin)
Maximum Source Current2 IOM+2 VOM=0.5V
40
(F.B Pin)
TYP.
0.52
5
90
0.6
–
85
MAX.
0.53
100
–
–
1
UNIT
V
nA
dB
MHz
V
200 µA
PWM COMPARATE BLOCK
PARAMETER
SYMBOL
TEST CONDITION
Input Threshold Voltage
(F.B Pin)
Input Threshold Voltage
(F.B Pin)
Maximum Duty Cycle
VTH0
VTH50
αM
duty·cycle=0%
duty·cycle=50%
Current Sense Amp.=HIGH
Error Amp.=HIGH ,CS Pin=1.2V
MIN.
–
–
55
TYP.
1.65
1.88
64
MAX. UNIT
1.75
V
–
V
85
%
SOFT START CIRCUIT BLOCK
PARAMETER
SYMBOL
TEST CONDITION
Input Bias Current (CS Pin)
Input Threshold Voltage
(CS Pin)
Input Threshold Voltage
(CS Pin)
IBCS
VTHCS0
VTHCS50
CS Pin=1.8V
duty·cycle=0%
duty·cycle=50%
MIN.
–
–
–
TYP.
250
0.25
0.52
MAX.
650
0.35
UNIT
nA
V
–
V
UNDER VOLTAGE LOCKOUT BLOCK
PARAMETER
SYMBOL
ON Threshold Voltage
OFF Threshold Voltage
Hysteresis Voltage
VTHON
VTHOFF
VHYS
TEST CONDITION
MIN.
–
–
60
TYP.
2.70
2.52
180
MAX.
–
–
–
UNIT
V
V
mV
OUTPUT BLOCK
PARAMETER
SYMBOL
TEST CONDITION
H-Output Voltage (OUT Pin)
L-Output Voltage (OUT Pin)
Output Source Current
(OUT Pin)
VOH
VOL
ISOURCE
RL=10kΩ
Output Sink Current=20mA
OUT Pin=0V
MIN.
3.50
–
8
TYP.
4.00
0.25
11
MAX.
–
0.65
–
UNIT
V
V
mA
GENERAL CHARACTERISTICS
PARAMETER
SYMBOL
TEST CONDITION
Latch Mode
Threshold Voltage (CS Pin)
Quiescent Current
Average Quiescent Current
VTHLA
ICCLA
ICCAV
Latch Mode
RL= , duty·cycle=50%
MIN.
1.2
–
–
TYP.
1.5
1.6
3.5
MAX. UNIT
1.8
V
2.2 mA
4.8 mA
-4-
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