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LM5034 Datenblatt(PDF) 5 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor. Click here to check the latest version.
Teilenummer LM5034
Bauteilbeschribung  High Voltage Dual Interleaved Current Mode Controller with Active Clamp
PDF  29 Pages
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Hersteller  NSC [National Semiconductor (TI)]
Direct Link  http://www.national.com
Logo NSC - National Semiconductor (TI)

LM5034 Datenblatt(HTML) 5 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.
VIN to GND
-0.3V to 105V
VCC to GND
-0.3V to 16V
RT/SYNC, RES and DCL to GND
-0.3V to 5.5V
CS Pins to GND
-0.3V to 1.25V
All other inputs to GND
-0.3V to 7V
ESD Rating (Note 5)
Human Body Model
2kV
Storage Temperature Range
-55˚C to 150˚C
Junction Temperature
150˚C
Lead Temperature (Soldering 4 sec),
(Note 2)
260˚C
Operating Ratings (Note 1)
VIN Voltage
13.0V to 100V
External Voltage Applied to VCC1,
VCC2
8V to 15V
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. VIN = 48V, VCC1 = VCC2 = 10V externally applied, R
T =RDCL = 42.2k
Ω,R
OVLP =70k
Ω, UVLO =
1.5V, unless otherwise stated (Note 3) and (Note 4).
Symbol
Parameter
Conditions
Min
Typ
Max
Units
Startup Regulator (VIN, VCC1, VCC2 Pins)
V
CCReg
V
CC voltage
VCC1 connected to VCC2, ext. supply
disconnected.
7.4
7.7
8
V
I
CC(Lim)
V
CC current limit
Sum of currents out of VCC1 and VCC2
with VCC1 = VCC2 = 0V.
19
22
mA
V
CC UVT
V
CC Under-voltage threshold
(V
CC increasing)
VCC1 connected to VCC2, ext. supply
disconnected, VIN =11V.
VCC -
300 mV
VCC -
100 mV
V
V
CC decreasing
5.5
6.2
6.9
V
I
IN
Startup regulator current
VIN = 90V, UVLO = 0V
500
600
µA
I
CCIn
Supply current into VCC
from external source
Output loads = open, V
CC = 10V
4.3
7
mA
UVLO
UVLO
Under-voltage threshold
1.22
1.25
1.28
V
I
HYST
Hysteresis current
16
20
24
µA
Current Sense Input (CS1, CS2 Pins)
CS
Current Limit Threshold
0.45
0.5
0.55
V
CS delay to output
CS1 (CS2) taken from zero to 1.0V.
Time for OUT1 (OUT2) to fall to 90% of
VCC1 (VCC2). Output load=0pF.
40
ns
Leading edge blanking time
at CS1 (CS2)
50
ns
CS1 (CS2) sink impedance
(clocked)
Internal pull-down FET on.
30
55
Ω
R
CS
Equivalent input resistance
at CS
CS taken from 0.2V to 0.5V, internal
FET off.
42
k
Ω
Current Limit Restart (RES Pin)
ResTh
Threshold
2.4
2.55
2.7
V
Charge source current
15
20
25
µA
Discharge sink current
7.5
10
12.5
µA
Soft-start (SS1, SS2 Pins)
I
SS
Current source (normal
operation)
35
50
65
µA
Current source during a
current limit restart
0.7
1
1.3
µA
V
SS
Open circuit voltage
5
V
www.national.com
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