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參數(shù)資料
| 型號： | LM5010 |
| 廠商： | National Semiconductor Corporation |
| 元件分類： | 基準(zhǔn)電壓源/電流源 |
| 英文描述： | RADIATION HARDENED HIGH EFFICIENCY, 5 AMP SWITCHING REGULATORS |
| 中文描述： | 抗輻射高效，5安培開關(guān)穩(wěn)壓器 |
| 文件頁數(shù)： | 4/19頁 |
| 文件大?。?/td> | 453K |
| 代理商： | LM5010 |
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
BST to GND
SW to GND (Steady State)
BST to V
CC
BST to SW
V
CC
to GND
S
GND
to RTN
SS to RTN
76V
90V
-1.5V
76V
14V
14V
-0.3V to +0.3V
-0.3V to 4V
V
IN
to SW
Current Out of I
SEN
All Other Inputs to GND
ESD Rating (Note 2)
Human Body Model
Storage Temperature Range
Lead Temperature (Soldering 4 sec) (Note 4)
76V
See Text
-0.3 to 7V
2kV
-55C to +150C
260C
Operating Ratings
(Note 1)
V
IN
Operating Junction Temperature
8V to 75V
40C to + 125C
Electrical Charateristics
Specifications with standard typeface are for T
J
= 25C, and those with
boldface
type apply over full
Operating Junction
Temperature range
. V
IN
= 48V, R
ON
= 200k
, unless otherwise stated (Note 5) and (Note 6).
Symbol
Parameter
Conditions
V
CC
Regulator
V
CC
Reg
V
CC
regulated output
V
IN
- V
CC
7.5V
≤
V
IN
≤
8.0V
V
CC
output impedance
(0 mA
≤
I
CC
≤
5 mA)
V
IN
= 48V
V
CC
current limit (Note 3)
V
CC
= 0V
UVLO
VCC
V
CC
under-voltage lockout
threshold
UVLO
VCC
hysteresis
V
CC
decreasing
UVLO
VCC
filter delay
100 mV overdrive
I
IN
operating current
Non-switching, FB = 3V
I
IN
shutdown current
R
ON
/SD = 0V
Switch Characteristics
Rds(on)
Buck Switch Rds(on)
I
TEST
= 200 mA
UVLO
GD
Gate Drive UVLO
V
BST
- V
SW
Increasing
UVLO
GD
hysteresis
Softstart Pin
Pull-up voltage
Internal current source
Current Limit
I
LIM
Threshold
Current out of I
SEN
Resistance from I
SEN
to S
GND
Response time
On Timer, R
ON
/SD Pin
t
ON
- 1
On-time
V
IN
= 10V, R
ON
= 200 k
t
ON
- 2
On-time
V
IN
= 75V, R
ON
= 200 k
Shutdown threshold
Voltage at R
ON
/SD rising
Threshold hysteresis
Voltage at R
ON
/SD falling
Off Timer
t
OFF
Off-time
Min
Typ
Max
Units
6.6
7
7.4
Volts
V
I
CC
= 0 mA, F
S
<
200 kHz
1.3
V
IN
= 8.0V
140
2.5
10
5.8
mA
V
V
CC
increasing
145
3
650
95
mV
μs
μA
μA
850
200
0.35
4.3
440
0.80
5.0
V
mV
3.0
2.5
11.5
V
μA
1
1.25
130
150
1.5
A
m
ns
2.1
290
0.35
2.75
390
0.65
40
3.4
490
1.1
μs
ns
V
mV
265
ns
L
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