Datasheet
LM3463
SNVS807A –MAY 2012–REVISED MAY 2013
www.ti.com
These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam
during storage or handling to prevent electrostatic damage to the MOS gates.
Absolute Maximum Ratings
(1)(2)
VIN to GND -0.3V to 100V
DR0, DR1, DR2, DR3, DR4, DR5 to GND -0.3V to 100V
EN -0.3V to 5.5V
DRVLIM -0.3V to 6V
Faultb -0.3V to 20V
All other pins -0.3V to 7V
ESD Rating, Human Body Model
(3)
±2 kV
Storage Temperature −65°C to +150°C
Junction Temperature (T
J
) −40°C to +125°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) If Military/Aerospace specified devices are required, please contact the Texas Instruments Sales Office/Distributors for availability and
specifications.
(3) Human Body Model, applicable std. JESD22-A114-C.
Operating Ratings
Supply Voltage Range (VIN) 12V to 95V
Junction Temperature Range (T
J
) −40°C to + 125°C
Thermal Resistance (θ
JA
) 24°C/W
Thermal Resistance (θ
JC
)
(1)
2.5°C/W
(1) θ
JC
measurements are performed in general accordance with Mil-Std 883B, Method 1012.1 and utilize the copper heat sink technique.
Copper Heat Sink @ 60°C.
Electrical Characteristics
Specification with standard type are for T
A
= T
J
= +25°C only; limits in boldface type apply over the full Operating Junction
Temperature (T
J
) range. Minimum and Maximum are specified through test, design or statistical correlation. Typical values
represent the most likely parametric norm at T
J
= +25°C, and are provided for reference purposes only. Unless otherwise
stated, the following conditions apply: V
IN
= 48V.
Symbol Parameter Conditions Min Typ Max Units
Supply
I
IN
V
IN
Quiescent Current V
EN
pin floating 9.75 15 mA
I
SD
V
IN
Shut-Down Current V
EN
= 0V 550 800 µA
VIN UVLO
V
IN-UVLO
V
IN
Turn-on Threshold 7.4 10 V
V
IN
Turn-off Threshold 4.5 7.1 V
V
IN
UVLO Hysteresis 300 mV
VCC Regulator
V
CC
V
CC
Regulated Voltage C
VCC
= 1 µF, I
VCC
=1mA 6.240 6.475 6.760 V
I
CC
= 10 mA 6.230 6.462 6.741 V
I
VCC-LIM
V
CC
Current Limit V
CC
= 0V 28 45 mA
V
CC-UVLO
V
CC
Turn-on Threshold 4.5 4.7 V
V
CC
Turn-off Threshold 3.75 4.20 V
V
CC
UVLO hysteresis V
CC
Decreasing 300 mV
Internal Reference Voltage Regulator
V
VREF
Reference Voltage Regulator Output C
VREF
= 0.47 µF, No Load 2.453 2.499 2.564 V
Voltage
I
VREF
= 2mA 2.443 2.496 2.545 V
I
VREF-SC
VREF Pin Short-Circuit Current V
VREF
= V
REFRTN
7.0 8.2 10.5 mA
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