SC2450ISWTRT 데이터 시트보기 (PDF) - Semtech Corporation
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SC2450ISWTRT Datasheet PDF : 21 Pages
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SC2450
POWER MANAGEMENT
Absolute Maximum Ratings
Exceeding the specifications below may result in permanent damage to the device, or device malfunction. Operation outside of the parameters specified
in the Electrical Characteristics section is not implied.
Parameter
Symbol
Maximum
Units
Supply Voltage
Voltage on BST Pins
Oscillator Frequency (1)
VIN
VBST
34
V
42
V
2
MHz
VCC
8
V
Thermal Resistance Junction to Case
θJC
25
Thermal Resistance Junction to Ambient
θJA
80
Operating Temperature Range
TA
-40 to +85
Storage Temperature Range
TSTG
-55 to +150
Lead Temperature (Soldering) 10 seconds
TLEAD
300
Note: (1) Maximum frequency and maximum supply voltage could cause excessive power dissipation in the part.
°C/W
°C/W
°C
°C
°C
Electrical Characteristics
Unless specified VIN = 24V, TA = 25°C
Parameter
Conditions
Min
Typ
Max Units
Supply Voltage, VIN
Supply Current
ENABLE = 0
8.5
30
V
30
40
mA
Under Voltage Lockout
UVLO Hysteresis
Voltage Regulator
5.8
V
400
mV
Pre Regulator Voltage
Bgout Voltage
Bgout Impedance
REGDRV Pin Sink Current
Error Amp
CREF = 4.7nF
IREGDRV
6
7
V
0.99
1
1.01
V
3
KΩ
5
mA
Input Offset Voltage
15
mV
Input Offset Mismatch
Input Impedance
Linear Transconductance
Internal Oscillator
4
mV
5
KΩ
.002
A/V
Frequency
Frequency
Ramp Valley to Peak
Ramp Valley to Peak
2007 Semtech Corp.
RREF = 30K
RREF = 60K
VIN = 12V
VIN = 24V
2
1
MHz
500
kHz
1.5
V
3
V
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