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LM5020SD-1 数据表(PDF) 4 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor.
部件名 LM5020SD-1
功能描述  100V Current Mode PWM Controller
Download  12 Pages
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制造商  NSC [National Semiconductor (TI)]
网页  http://www.national.com
标志 NSC - National Semiconductor (TI)

LM5020SD-1 数据表(HTML) 4 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
-0.3V to 100V
V
CC to GND
-0.3V to 16V
RT to GND
-0.3V to 5.5V
All other pins to GND
-0.3V to 7V
Power Dissipation
Internally Limited
ESD Rating (Note 2)
Human Body Model
2kV
Storage Temperature
-55˚C to +150˚C
Junction Temperature
150˚C
Operating Ratings
V
IN Voltage
13V to 90V
External Voltage applied to V
CC
8V to 15V
Operating Junction Temperature
-40˚C to +125˚C
Electrical Characteristics
Specifications in standard type face are for T
J= +25˚C and those in boldface type apply over the full operating junction tem-
perature range. Unless otherwise specified: V
IN = 48V, VCC = 10V, and RT = 31.6K
Symbol
Parameter
Conditions
Min
Typ
Max
Units
Startup Regulator
V
CCReg
V
CC Regulation
Open ckt
7.4
7.7
8.0
V
V
CC Current Limit
(Note 4)
15
22
mA
I-V
IN
Startup Regulator Leakage
V
IN = 100V
150
500
µA
I
IN
Shutdown Current
V
UVLO = 0V, VCC = open
250
350
µA
V
CC Supply
V
CC UVLO (Rising)
VccReg
- 300mV
VccReg -
100mV
V
V
CC UVLO (Falling)
5.3
6.0
6.7
V
I
CC
Supply Current
Cload = 0
2
3
mA
Error Amplifier
GBW
Gain Bandwidth
4
MHz
DC Gain
75
dB
Input Voltage
V
FB = COMP
1.225
1.25
1.275
V
COMP Sink Capability
V
FB = 1.5V COMP= 1V
5
17
mA
Line UVLO Shutdown
Shutdown Threshold
1.225
1.25
1.275
V
Undervoltage Shutdown
Hysteresis Current Source
16
20
24
µA
Current Limit
ILIM Delay to Output
CS step from 0 to 0.6V
Time to onset of OUT
Transition (90%)
30
ns
CS
Cycle by Cycle CS Threshold
Voltage
0.45
0.5
0.55
V
Leading Edge Blanking Time
50
ns
CS Sink Impedance (clocked)
35
55
Soft Start
Softstart Current Source
7
10
13
µA
Softstart to COMP Offset
0.35
0.55
0.75
V
www.national.com
4


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