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LM5007SD Datasheet(PDF) 4 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor. Click here to check the latest version.
Part # LM5007SD
Description  High Voltage (80V) Step Down Switching Regulator
PDF  12 Pages
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Manufacturer  NSC [National Semiconductor (TI)]
Direct Link  http://www.national.com
Logo NSC - National Semiconductor (TI)

LM5007SD Datasheet(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
80V
BST to GND
94V
SW to GND (Steady State)
-1V
ESD Rating (Note 5)
Human Body Model
2kV
Machine Model
200V
BST to V
CC
80V
BST to SW
14V
V
CC to GND
14V
All Other Inputs to GND
-0.3 to 7V
Lead Temperature (Soldering 4 sec)
260˚C
Storage Temperature Range
-55˚C to +150˚C
Operating Ratings (Note 1)
V
IN
9V to 75V
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
Startup Regulator
V
CC Reg
V
CC Regulator Output
6.6
7
7.4
V
V
CC Current Limit
(Note 4)
11
mA
V
CC Supply
V
CC undervoltage Lockout
Voltage (V
CC increasing)
6.3
V
V
CC Undervoltage Hysteresis
206
mV
V
CC UVLO Delay (filter)
3
µs
Operating Current (ICC)
Non-Switching, FB = 3V
500
675
µA
Shutdown/Standby Current
R
ON = 0V
100
200
µA
Switch Characteristics
Buck Switch Rds(on)
I
TEST = 200mA,
VBST −VSW = 6.3V
(Note 6)
0.74
1.34
Ω
Gate Drive UVLO (VBST –
VSW)
Rising
3.4
4.5
5.5
V
Gate Drive UVLO Hysteresis
400
mV
Breakdown Voltage
V
IN to Ground
T
J = 25˚C
T
J = -40˚C to +125˚C
80
76
V
Breakdown Voltage
BST to V
CC
T
J = 25˚C
T
J = -40˚C to +125˚C
80
76
V
Current Limit
Current Limit Threshold
535
725
900
mA
Current Limit Response Time
I
switch Overdrive = 0.1A
Time to Switch Off
225
ns
OFF time generator (test 1)
FB=0V, RCL = 100K
17
µs
OFF time generator (test 2)
FB=2.3V, RCL = 100K
2.65
µs
On Time Generator
TON -1
Vin = 10V
Ron = 200K
2.15
2.77
3.5
µs
TON -2
Vin = 75V
Ron = 200K
290
390
490
ns
Remote Shutdown Threshold
Rising
0.45
0.7
1.1
V
Remote Shutdown Hysteresis
40
mV
www.national.com
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