SC2449 View Datasheet(PDF) - Semtech Corporation
Part Name
Description
MFG CO.
'SC2449' PDF : 20 Pages View PDF
SC2449
POWER MANAGEMENT
Electrical Characteristics (Cont.)
Unless specified VIN = 24V, TA = 25°C
Parameter
Conditions
Min
Typ
Max
Internal Oscillator (Cont.)
Ramp Valley to Peak
Ramp Valley to Peak
External Clock
VIN = 12V
1.5
V = 24V
3
IN
Detect Time
Rise Time < 50ns
2
Unlock Time
Frequency Range
High Side Gate Drive
10
50
0.27
1
Max Duty Cycle
45
Peak Source
Peak Sink
Low Side Gate Drive
CLOAD = 10nF
1
CLOAD = 10nF
1
Peak Source
Peak Sink
Sync Drive Timing
CLOAD = 10nF
2
CLOAD = 10nF
2
Min Non-overlap
PWM Match
Logic Input Pins
C = 1nF Fet Drive < 1V
20
50
LOAD
50% Duty Cycle, FOSC = 1MHz
-1
1
Input Bias Current
Logic Threshold
VIN = 0 - 5V
-10
10
0.8
FB2 Disable Threshold
Over Current Protection
VCC - 0.7V
OC+ I/P Bias Current
OC- I/P Bias Current
Over Voltage Protection
VIN = 24V
@ trip voltage
700
40
50
60
OVP Threshold
120
Thermal Shutdown
150
Note:
(1) This device is ESD sensitive. Use of standard ESD handling precautions is required.
Units
V
V
µs
µs
MHz
%
A
A
A
A
ns
%
µA
V
V
µA
µA
%
°C
2002 Semtech Corp.
3
www.semtech.com
Share Link: 
