SC2447 Просмотр технического описания (PDF) - Semtech Corporation
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SC2447 Datasheet PDF : 26 Pages
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SC2447
POWER MANAGEMENT
Recommended Operating Conditions
The performance is not guarantied if exceeding the specifications below.
Parameter
Symbol
Conditions
AVCC Operating Voltage
AVCC
Ambient temperature Range
TA
Junction Temperature Range
TJ
Electrical Characteristics
Unless specified: AVCC = 12V, SYNC = 0, ROSC = 51.1kΩ, -40°C < TA = TJ < 125°C
Parameter
Symbol
Conditions
Undervoltage Lockout
AVCC Start Threshold
AVCC Start Hysteresis
AVCC Operating Current
AVCC Quiescent Current in UVLO
Channel 1 Error Amplifier
AVCCTH
AVCCHYST
ICC
AVCC Increasing
AVCC= 12V
AVCC = AVCC - 0.2V
TH
Input Common-Mode Voltage Range(1)
Inverting Input Voltage Range(1)
Input Offset Voltage
0 ~ 70°C
Non-Inverting Input Bias Current
IREF
Inverting Input Bias Current
IIN1-
Amplifier Transconductance
GM1
Amplifier Open-Loop Gain
aOL1
Amplifier Unity Gain Bandwidth(1)
Minimum COMP1 Switching Threshold
Amplifier Output Sink Current
Amplifier Output Source Current
Channel 2 Error Amplifier
V =V =0
CS1+
CS1-
VSS1 Increasing
VIN1- = 1V, VCOMP1 = 2.5V
VIN1- = 0, VCOMP1 = 2.5V
Input Common-mode Voltage Range(1)
Inverting Input Voltage Range(1)
Input Offset Voltage
© 2006 Semtech Corp.
0 ~ 70°C
3
Min
4.65
-40
-40
Min
0
0
0
0
Typ
Typ
4.50
0.2
8
2.5
±1
-100
-100
170
65
5
1.7
11
8.5
±1
Max Units
15
V
85
°C
125
°C
Max Units
4.65
V
V
15
mA
mA
3
AVCC
±3
-250
-250
V
V
mV
nA
nA
µΩ−1
dB
MHz
V
µA
µA
3
V
AVCC
V
±3
mV
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