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LM5041 датащи(PDF) 5 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor. Click here to check the latest version.
номер детали LM5041
подробное описание детали  Cascaded PWM Controller
PDF  16 Pages
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производитель  NSC [National Semiconductor (TI)]
домашняя страница  http://www.national.com
Logo NSC - National Semiconductor (TI)

LM5041 датащи(HTML) 5 Page - National Semiconductor (TI)

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Absolute Maximum Ratings (Note 1)
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
V
IN to GND
100V
V
CC to GND
16V
All Other Inputs to GND
-0.3 to 7V
Junction Temperature
150˚C
Storage Temperature
Range
-65˚C to +150˚C
ESD Rating
2 kV
Lead temperature (Note 2)
Wave
4 seconds
260˚C
Infrared
10 seconds
240˚C
Vapor Phase
75 seconds
219˚C
Operating Ratings (Note 1)
V
IN
15 to 90V
Junction Temperature
-40˚C to +105˚C
Electrical Characteristics
Specifications with standard typeface are for T
J = 25˚C, and those with boldface type apply over full Operating Junction
Temperature range.V
IN = 48V, VCC = 10V, RT = 26.7k
Ω,R
SET = 20k
Ω) unless otherwise stated (Note 3)
Symbol
Parameter
Conditions
Min
Typ
Max
Units
Startup Regulator
V
CC Reg
V
CC Regulation
open circuit
8.7
9
9.3
V
V
CC Current Limit
(Note 4)
15
25
mA
I-V
IN
Startup Regulator
Leakage (external Vcc
Supply)
V
IN = 100V
145
500
µA
Shutdown Current (Iin)
UVLO = 0V, V
CC = open
350
450
µA
V
CC Supply
V
CC Under-voltage
Lockout Voltage
(positive going V
cc)
V
CC Reg
- 400mV
V
CC Reg -
275mV
V
V
CC Under-voltage
Hysteresis
1.7
2.1
2.6
V
Supply Current (I
CC)CL =0
3
4
mA
Error Amplifier
GBW
Gain Bandwidth
3
MHz
DC Gain
80
dB
Input Voltage
V
FB = COMP
0.735
0.75
0.765
V
COMP Sink Capability
V
FB = 1.5V, COMP= 1V
4
8mA
Reference Supply
V
REF
Ref Voltage
I
REF =0mA
4.85
5
5.15
V
Ref Voltage
Regulation
I
REF = 0 to 10mA
25
50
mV
Ref Current Limit
15
20
mA
Current Limit
ILIM Delay to Output
CS Step from 0 to 0.6V
Time to Onset of OUT
Transition (90%)
C
L =0
40
ns
Cycle by Cycle
Threshold Voltage
0.45
0.5
0.55
V
Cycle Skip Threshold
Voltage
Resets SS capacitor;
auto restart
0.55
0.6
0.65
V
Leading Edge
Blanking Time
50
ns
CS Sink Current
(clocked)
CS = 0.3V
25
mA
www.national.com
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