R1240K003A-TR Ver la hoja de datos (PDF) - RICOH Co.,Ltd.
Número de pieza
componentes Descripción
Fabricante
R1240K003A-TR Datasheet PDF : 19 Pages
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R1240x
NO.EA-190-170609
ELECTRICAL CHARACTERISTICS
Electrical Characteristics
Symbol
Item
IIN
VIN Consumption Current
VUVLO1 UVLO Detect Voltage
VUVLO2 UVLO Released Voltage
VFB
ΔVFB/ΔTa
fosc
VFLB
Maxduty
VFB Voltage Tolerance
VFB Voltage Temperature
Coefficient
Oscillator Frequency
Fold-back Frequency
(Ver. B)
Oscillator Max. Duty Cycle
tmin Minimum On Time
tss
tdly
RLXH
ILXHOFF
ILIMLXH
VCEL
Soft-start Time
Delay Time for Latch
Protection (Ver. A)
Lx High Side Switch
ON Resistance
Lx High Side Switch
Leakage Current
Lx High Side Switch
Limited Current
CE “L” Input Voltage
VCEH CE “H” Input Voltage
IFB
VFB Input Current
ICEL
CE “L” Input Current
ICEH
TTSD
Istandby
CE “H” Input Current
Thermal Shutdown Detect
Temperature
Standby Current
(Otherwise notified, VIN = 12 V, Ta = 25ºC)
Conditions
Min. Typ. Max. Unit
VIN = 30 V, VFB = 1.0 V
0.5 1.0 mA
Falling
Rising
3.6 3.8 4.0
V
VUVLO1
+0.2
4.2
V
0.788 0.800 0.812 V
−40ºC ≤ Ta ≤ 85ºC
±150
ppm/ºC
1000 1250 1500 kHz
VFB < 0.56 V
310
kHz
VFB = 0.72 V
75
85
90
%
100
nsec
0.2 0.4 0.6 ms
1
2
4
ms
0.35
Ω
0
5
μA
Hysteresis 30ºC
VIN = 30 V
2.0
A
0.3
V
1.6
V
−1.0
−1.0
−1.0
1.0 μA
1.0 μA
1.0 μA
160
ºC
0
5
μA
5
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