SC2450
POWER MANAGEMENT
Electrical Characteristics (Cont.)
Unless specified VIN = 24V, TA = 25°C
PARAMETER
External Clock
CONDITIONS
Detect Time
Rise Time < 50ns
Unlock Time
Frequency Range
High Side Gate Drive
Max Duty Cycle
Peak Source
Peak Sink
Low Side Gate Drive
Peak Source
Peak Sink
Sync Drive Timing
CLOAD = 10nF
CLOAD = 10nF
CLOAD = 10nF
CLOAD = 10nF
Min Non-overlap
PWM Match
Logic Input Pins
CLOAD = 1nF Fet Drive < 1V
50% Duty Cycle, FOSC = 1MHz
Input Bias Current
Logic Threshold
VIN = 0 - 5V
FB2 Disable Threshold
Over Current Protection
OCP Threshold
OC+ I/P Bias Current
OC- I/P Bias Current
VIN = 24V
Over Voltage Protection
OVP Threshold
Thermal Shutdown
MIN
TYP
MAX UNITS
2
µs
10
50
µs
0.3
1
MHz
45
%
1
A
1
A
2
A
2
A
20
50
-1
ns
1
%
-10
10
µA
0.8
V
VCC - 0.7V
V
103
115
127
mV
700
µA
50
µA
120
%
150
°C
Note:
(1) This device is ESD sensitive. Use of standard ESD handling precautions is required.
2001 Semtech Corp.
3
www.semtech.com