LM5035 Datasheet, PDF (5/28 Pages) National Semiconductor (TI) – PWM Controller with Integrated Half-Bridge and SyncFET Drivers

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