Datasheet

LM5046
www.ti.com SNVS703G –FEBRUARY 2011–REVISED MARCH 2013
Electrical Characteristics (continued)
Limits in standard typeface are for T
J
= 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 = 25kΩ, 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
HO1, HO2, LO1, LO2 Gate Drivers
V
OL
Low-state output voltage I
HO/LO
= 100mA 0.16 0.32 V
V
OH
High-state output voltage I
HO/LO
= 100mA 0.27 0.495 V
V
OHL
= V
CC
-V
LO
V
OHH
= V
BST
-V
HO
Rise Time C-load = 1000pF 16 ns
Fall Time C-load = 1000pF 11 ns
I
OHL
Peak Source Current V
HO/LO
= 0V 1.5 - A
I
OLL
Peak Sink Current V
HO/LO
= V
CC
2 - A
SR1, SR2 Gate Drivers
V
OL
Low-state output voltage I
SR1/SR2
= 10mA 0.05 0.10 V
V
OH
High-state output voltage I
SR1/SR2
= 10mA, 0.17 0.28 V
V
OH
= V
REF
-V
SR
Rise Time C-load = 1000pF 60 ns
Fall Time C-load = 1000pF 20 ns
I
OHL
Peak Source Current V
SR
= 0V 0.1 - A
I
OLL
Peak Sink Current V
SR
= V
REF
0.4 - A
Thermal
TSD Thermal Shutdown Temp 160 °C
Thermal Shutdown Hysteresis 25 °C
RJA Junction to Ambient
(1)
TSSOP - 28/WQFN-28 40 °C/W
RJC Junction to Case 4 °C/W
(1) 4 layer standard thermal test board. Cu thickness of layers (2oz, 1oz, 1oz, 2oz).
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