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LM5035MHX Datasheet(PDF) 5 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor.
No. de pieza LM5035MHX
Descripción Electrónicos  PWM Controller with Integrated Half-Bridge and SyncFET Drivers
Download  28 Pages
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Fabricante Electrónico  NSC [National Semiconductor (TI)]
Página de inicio  http://www.national.com
Logo NSC - National Semiconductor (TI)

LM5035MHX Datasheet(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
HS to GND
-1V to 105V
HB to GND
-0.3V to 118V
HB to HS
-0.3V to 18V
VCC to GND
-0.3V to 16V
CS, RT, DLY to GND
-0.3V to 5.5V
COMP Input Current
10mA
All other inputs to GND
-0.3V to 7V
ESD Rating (Note 4)
Human Body Model
2kV
Storage Temperature Range
-65˚C to 150˚C
Junction Temperature
150˚C
Operating Ratings (Note 1)
VIN Voltage
13V to 105V
External Voltage Applied to VCC
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.V
VIN = 48V, VVCC = 10V externally applied, RRT = 15.0 k
Ω,
R
DLY = 27.4k
Ω,V
UVLO = 3V, VOVP = 0V unless otherwise stated. See (Note 2) and (Note 3).
Symbol
Parameter
Conditions
Min
Typ
Max
Units
Startup Regulator (VCC pin)
V
VCC
VCC voltage
I
VCC = 10mA
7.3
7.6
7.9
V
I
VCC(LIM)
VCC current limit
V
VCC =7V
20
25
mA
V
VCCUV
VCC Under-voltage threshold
(VCC increasing)
VIN = VCC,
∆V
VCC from the regulation
setpoint
0.2
0.1
V
VCC decreasing
VCC – PGND
5.5
6.2
6.9
V
I
VIN
Startup regulator current
VIN = 90V, UVLO = 0V
30
70
µA
Supply current into VCC from
external source
Outputs & COMP open, V
VCC = 10V,
Outputs Switching
4
6
mA
Voltage Reference Regulator (REF pin)
V
REF
REF Voltage
I
REF = 0mA
4.85
5
5.15
V
REF Voltage Regulation
I
REF = 0 to 10mA
25
50
mV
REF Current Limit
REF = 4.5V
15
20
mA
Under-Voltage Lock Out and shutdown (UVLO pin)
V
UVLO
Under-voltage threshold
1.212
1.25
1.288
V
I
UVLO
Hysteresis current
UVLO pin sinking
19
23
27
µA
Under-voltage Shutdown Threshold UVLO voltage falling
0.3
V
Under-voltage Standby Enable
Threshold
UVLO voltage rising
0.4
V
Over-Voltage Protection (OVP pin)
V
OVP
Over-Voltage threshold
1.212
1.25
1.288
V
I
OVP
Hysteresis current
OVP pin sourcing
19
23
27
µA
Current Sense Input (CS Pin)
V
CS
Current Limit Threshold
0.228
0.25
0.272
V
CS delay to output
CS from zero to 1V. Time for HO and LO
to fall to 90% of VCC. Output load = 0
pF.
80
ns
Leading edge blanking time at CS
50
ns
CS sink impedance (clocked)
Internal FET sink impedance
32
60
Current Limit Restart (RES Pin)
V
RES
RES Threshold
2.4
2.5
2.6
V
Charge source current
V
RES = 1.5V
16
22
28
µA
Discharge sink current
V
RES =1V
8
12
16
µA
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