lm5020sdx-2 National Semiconductor Corporation, lm5020sdx-2 Datasheet - Page 4

• Manufacturer Part Number: lm5020sdx-2
• Description: 100v Current Mode Pwm Controller
• Manufacturer: National Semiconductor Corporation

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Startup Regulator
V
I-V
I
VCC Supply
I
Error Amplifier
GBW
UVLO Pin
Current Limit
Soft Start
IN
CC
CC
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 in standard type face are for T
perature range. Unless otherwise specified: VIN = 48V, VCC = 10V, and RT = 31.6kΩ. (Note 3)
Symbol
VIN to GND
VCC to GND
RT to GND
All other pins to GND
Power Dissipation
ESD Rating (Note 2)
IN
Reg
Human Body Model
V
V
Startup Regulator Leakage
Shutdown Current
V
V
Supply Current
Gain Bandwidth
DC Gain
Reference Voltage
COMP Sink Capability
Shutdown Threshold
Undervoltage Shutdown
Hysteresis Current Source
ILIM Delay to Output
Cycle by Cycle CS Threshold
Voltage
Leading Edge Blanking Time
CS Sink Impedance (clocked)
Softstart Current Source
Softstart to COMP Offset
CC
CC
CC
CC
Regulation
Current Limit
UVLO (Rising)
UVLO (Falling)
Parameter
Internally Limited
J
= +25˚C and those in boldface type apply over the full operating junction tem-
-0.3V to 100V
V
(Note 4)
V
V
Cload = 0
FB = COMP
FB = 1.5V COMP= 1V
CS step from 0 to 0.6V
Time to onset of OUT
Transition (90%)
(Note 1)
-0.3V to 5.5V
-0.3V to 16V
CC
IN
UVLO
-0.3V to 7V
= 100V
= Open
= 0V, V
Conditions
2kV
CC
4
= open
Operating Ratings
Storage Temperature
Junction Temperature
VIN Voltage
External Voltage applied to VCC
Operating Junction Temperature
- 300mV
VccReg
1.225
1.225
0.45
0.35
Min
7.4
5.3
15
16
5
7
VccReg -
100mV
1.25
1.25
0.55
Typ
150
250
7.7
6.0
0.5
22
75
17
20
30
50
35
10
2
4
1.275
1.275
Max
0.55
0.75
500
350
8.0
6.7
24
55
13
3
-65˚C to +150˚C
-40˚C to +125˚C
13V to 90V
8V to 15V
Units
MHz
mA
mA
mA
µA
µA
dB
µA
µA
ns
ns
Ω
V
V
V
V
V
V
V
150˚C