SC2542EVB 데이터 시트보기 (PDF) - Semtech Corporation
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SC2542EVB Datasheet PDF : 27 Pages
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POWER MANAGEMENT
Electrical Characteristics (Cont.)
Unless specified: TA = 25°C, VIN = 16V, FS = 200KHz.
Parameter
Test Conditions
Oscillator
Frequency Range per Phase
Oscillator Frequency per Phase
Minimum OFF Time
ROSC = 73K Ω
Oscillator Ramp Peak Voltage
Oscillator Ramp Valley Voltage
Current Limit
ILIM Source Current
ILIM Offset Voltage
MINSET
Minimum Pulse Width Set
Minimum Pulse Width Set
Minimum Pulse Width Set
Duty Cycle
VIN = 16V, R = 107K Ω
VIN = 8V, R = 107K Ω
VIN = 16V, R = 53K Ω
PWM 1 & 2 Maximum Duty Cycle
PWM 1 & 2 Minimum Duty Cycle
Driver
ROSC = 73k Ω
ROSC = 73k Ω
High Side Gate Drive (Source)
Source/Sink
Low Side Gate Drive (Source)
Source/Sink
Gate Drive Rise Time
Gate Drive Fall Time
Dead Time
COUT = 1000pF
COUT = 1000pF
OVP
OVP Threshold Voltage
Feedback voltage
Power Good
Threshold Voltage
FB1 & FB2 rising
Threshold Voltage
FB1 & FB2 falling
Power Good Sink Capability
Sink 1mA
2005 Semtech Corp.
4
SC2542
Min
Typ
Max Units
100
175
210
300
400
3.0
1
300
KHz
245
KHz
nS
V
V
9
10
11
µA
2
mV
1
µS
2
µS
500
nS
90
%
0
%
0.5
A
0.5
A
30
nS
30
nS
80
nS
0.89
V
0.675
V
0.57
V
0.4
V
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