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LM5008SD データシート(PDF) 4 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor. Click here to check the latest version.
部品番号 LM5008SD
部品情報  High Voltage (100V) Step Down Switching Regulator
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メーカー  NSC [National Semiconductor (TI)]
ホームページ  http://www.national.com
Logo NSC - National Semiconductor (TI)

LM5008SD データシート(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
BST to GND
-0.3V to 114V
SW to GND (Steady State)
-1V
ESD Rating (Note 5)
Human Body Model
1.5kV
BST to V
CC
100V
BST to SW
14V
V
CC to GND
14V
All Other Inputs to GND
-0.3 to 7V
Lead Temperature (Soldering 4 sec)
200˚C
Storage Temperature Range
-55˚C to +150˚C
Operating Ratings (Note 1)
V
IN
9.5V to 95V
Operating Junction Temperature
−40˚C to + 125˚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, unless otherwise stated (Note 3).
Symbol
Parameter
Conditions
Min
Typ
Max
Units
V
CC Supply
V
CC Reg
V
CC Regulator Output
6.6
7
7.4
V
V
CC Current Limit
(Note 4)
9.5
mA
V
CC undervoltage Lockout
Voltage (V
CC increasing)
6.3
V
V
CC Undervoltage Hysteresis
200
mV
V
CC UVLO Delay (filter)
100mV overdrive
10
µs
I
IN Operating Current
Non-Switching, FB = 3V
485
675
µA
I
IN Shutdown Current
R
ON/SD=0V
76
150
µA
Switch Characteristics
Buck Switch Rds(on)
I
TEST = 200mA, (Note 6)
1.15
2.47
Gate Drive UVLO
V
BST −VSW Rising
3.4
4.5
5.5
V
Gate Drive UVLO Hysteresis
430
mV
Current Limit
Current Limit Threshold
0.41
0.51
0.61
A
Current Limit Response Time
I
switch Overdrive = 0.1A
Time to Switch Off
400
ns
OFF time generator (test 1)
FB=0V, R
CL = 100K
35
µs
OFF time generator (test 2)
FB=2.3V, R
CL = 100K
2.56
µs
On Time Generator
T
ON - 1
Vin = 10V
Ron = 200K
2.15
2.77
3.5
µs
T
ON - 2
Vin = 95V
Ron = 200K
200
300
420
ns
Remote Shutdown Threshold
Rising
0.40
0.70
1.05
V
Remote Shutdown Hysteresis
35
mV
www.national.com
4


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