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LM5045 Datasheet(PDF) 5 Page - Texas Instruments

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Part # LM5045
Description  Full-Bridge PWM Controller with Integrated MOSFET Drivers
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Manufacturer  TI [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI - Texas Instruments

LM5045 Datasheet(HTML) 5 Page - Texas Instruments

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LM5045
www.ti.com
SNVS699G – FEBRUARY 2011 – REVISED MARCH 2013
Absolute Maximum Ratings
(1)
VIN to GND
-0.3V to 105V
HS to GND(2)
-5V to 105V
BST1/BST2 to GND
-0.3V to 116V
BST1/BST2 to HS1/HS2
-0.3V to 16V
HO1/HO2 to HS1/HS2(3)
-0.3V to BST1/BST2+0.3V
LO1/LO2/SR1/SR2(3)
-0.3V to VCC+0.3V
VCC to GND
-0.3V to 16V
REF,SSOFF,RT,OVP,UVLO to GND
-0.3V to 7V
RAMP
-0.3V to 7V
COMP
-0.3V
COMP Input Current
+10mA
All other inputs to GND(3)
-0.3 to REF+0.3V
ESD Rating HBM(4)
2 kV
Storage Temperature Range
-55°C to 150°C
Junction Temperature
150°C
(1)
Absolute Maximum Ratings are limits beyond which damage to the device may occur. Operating Ratings are conditions under which
operation of the device is intended to be functional. For ensured specifications and test conditions, see the Electrical Characteristics.
(2)
The negative HS voltage must never be more negative than VCC-16V. For example, if VCC=12V, the negative transients at HS must
not exceed -4V.
(3)
These pins are output pins and as such should not be connected to an external voltage source. The voltage range listed is the limits the
internal circuitry is designed to reliably tolerate in the application circuit.
(4)
The human body model is a 100pF capacitor discharged through a 1.5k
Ω resistor into each pin.
Operating Ratings
(1)
VIN Voltage
14V to 100V
External Voltage Applied to VCC
10V to 14V
Junction Temperature
-40°C to +125°C
SLOPE
-0.3V to 2V
(1)
Absolute Maximum Ratings are limits beyond which damage to the device may occur. Operating Ratings are conditions under which
operation of the device is intended to be functional. For ensured specifications and test conditions, see the Electrical Characteristics.
Electrical Characteristics
Limits in standard typeface are for TJ = 25°C only; limits in boldface type apply the junction temperature range of -40°C to
+125°C. Unless otherwise specified, the following conditions apply: VIN = 48V, RT = 25k
Ω, RD1=RD2=20kΩ. No load on
HO1, HO2, LO1, LO2, SR1, SR2, COMP=0V, UVLO=2.5V, OVP=0V, SSOFF=0V.
Symbol
Parameter
Conditions
Min
Typ
Max
Units
Startup Regulator (VCC pin)
VCC1
VCC voltage
ICC= 10mA (SSSR<1V)
9.3
9.6
9.9
V
VCC2
VCC voltage
ICC= 10mA (SSSR>1V)
7.5
7.8
8.1
V
ICC(Lim)
VCC current limit
VCC= 6V
60
80
mA
ICC(ext)
VCC supply current
Supply current into VCC from an externally
4.6
mA
applied source. VCC = 10V
VCC load regulation
ICC from 0 to 50 mA
35
mV
VCC(UV)
VCC under-voltage threshold
Positive going VCC
VCC1–0. VCC1–0.
V
2
1
VCC under-voltage threshold
Negative going VCC
5.9
6.3
6.7
V
IIN
VIN operating current
4
mA
VIN shutdown current
VIN=20V, VUVLO=0V
300
520
µA
VVIN=100V, VUVLO=0V
350
550
µA
VIN start-up regulator leakage
VCC=10V
160
µA
Voltage Reference Regulator (REF pin)
Copyright © 2011–2013, Texas Instruments Incorporated
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