lm5041sdx National Semiconductor Corporation, lm5041sdx Datasheet - Page 5

• Manufacturer Part Number: lm5041sdx
• Description: Cascaded Pwm Controller
• Manufacturer: National Semiconductor Corporation

Startup Regulator
V
I-V
V
Error Amplifier
GBW
Reference Supply
V
Current Limit
Symbol
Absolute Maximum Ratings
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
Electrical Characteristics
Specifications with standard typeface are for T
Temperature range. V
CC
CC
REF
IN
Reg
Supply
V
V
All Other Inputs to GND
Junction Temperature
Storage Temperature
Range
IN
CC
to GND
to GND
V
V
Startup Regulator
Leakage (external Vcc
Supply)
Shutdown Current (Iin)
V
Lockout Voltage
(positive going V
V
Hysteresis
Supply Current (I
Gain Bandwidth
DC Gain
Input Voltage
COMP Sink Capability
Ref Voltage
Ref Voltage
Regulation
Ref Current Limit
ILIM Delay to Output
Cycle by Cycle
Threshold Voltage
Cycle Skip Threshold
Voltage
Leading Edge
Blanking Time
CS Sink Current
(clocked)
CC
CC
CC
CC
Regulation
Current Limit
Under-voltage
Under-voltage
Parameter
IN
= 48V, V
cc
CC
)
)
100V
16V
-0.3 to 7V
150˚C
-65˚C to +150˚C
CC
open circuit
(Note 4)
V
UVLO = 0V, V
C
V
V
I
I
CS Step from 0 to 0.6V
Time to Onset of OUT
Transition (90%)
C
Resets SS capacitor;
auto restart
CS = 0.3V
= 10V, RT = 26.7kΩ, R
REF
REF
IN
L
FB
FB
L
= 0
= 0
= 100V
= COMP
= 1.5V, COMP= 1V
= 0 mA
= 0 to 10mA
Conditions
J
(Note 1)
= 25˚C, and those with boldface type apply over full Operating Junction
CC
= open
SET
5
= 20kΩ) unless otherwise stated (Note 3)
V
- 400mV
Operating Ratings
V
Junction Temperature
CC
0.735
4.85
0.45
0.55
Min
IN
8.7
1.7
15
15
4
2
Reg
ESD Rating
Lead temperature (Note 2)
Wave
Infrared
Vapor Phase
V
CC
275mV
0.75
Typ
145
350
2.1
0.5
0.6
25
80
25
20
40
50
9
3
3
8
5
5
Reg -
(Note 1)
2 kV
4 seconds
10 seconds
75 seconds
0.765
Max
5.15
0.55
0.65
500
450
9.3
2.6
50
4
-40˚C to +125˚C
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15 to 90V
Units
MHz
mA
mA
mA
mV
mA
mA
µA
µA
dB
ns
ns
V
V
V
V
V
V
V
260˚C
240˚C
219˚C