Datasheet
LM3464, LM3464A
SNVS652F –APRIL 2010–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 (LM3464/LM3464A)
(1)(2)
V
IN
to GND -0.3V to 100V
DR1, DR2, DR3, DR4 to GND -0.3V to 100V
EN to GND -0.3V to 5.5V
All other inputs to GND -0.3V to 7V
ESD Rating
(3)
, Human Body Model ±2 kV
Storage Temperature Range −65°C to + 150°C
Junction Temperature (T
J
) + 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) If Military/Aerospace specified devices are required, please contact the Texas Instruments Sales Office/Distributors for availability and
specifications.
(3) The human body model is a 100 pF capacitor discharged through a 1.5 kΩ resistor into each pin.
Operating Ratings (LM3464)
Supply Voltage Range (VIN) 12V to 80V
Junction Temperature Range (T
J
) −40°C to + 125°C
Thermal Resistance (θ
JA
)
(1)
33.5°C/W
Thermal Resistance (θ
JC
)
(1)
6°C/W
(1) Measurements are performed on a 4 layer JEDEC board with 10 vias provided under the exposed pad. See JESD51-1 to JESD51-11.
The value of θ
JA
is specifically dependent on the PCB trace area, trace material and the number of layers and thermal vias.
Operating Ratings (LM3464A)
Supply Voltage Range (VIN) 12V to 95V
Junction Temperature Range (T
J
) −40°C to + 125°C
Thermal Resistance (θ
JA
)
(1)
33.5°C/W
Thermal Resistance (θ
JC
)
(1)
6°C/W
(1) Measurements are performed on a 4 layer JEDEC board with 10 vias provided under the exposed pad. See JESD51-1 to JESD51-11.
The value of θ
JA
is specifically dependent on the PCB trace area, trace material and the number of layers and thermal vias.
Electrical Characteristics (LM3464/LM3464A)
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
Vcc Regulator
(1)
V
IN-UVLO
Vin under voltage lockout V
IN
increasing 8.5 V
V
IN-UVLO-HYS
Vin UVLO hysteresis V
IN
decreasing 95 mV
V
CC
VCC output voltage C
VCC
= 0.68 µF 6.15 6.3 6.51 V
No load
V
CC-UVLO
VCC under-voltage lockout threshold (UVLO) V
CC
increasing 4.98 5.28 V
V
CC-UVLO-HYS
VCC UVLO hysteresis V
CC
decreasing 250 mV
I
IN
Quiescent Current from VIN C
VCC
= 0.68 µF 1.65 2.3 3 mA
No load
I
VCC
VCC Current limit V
CC
= 0V 18 mA
Device Enable
V
EN-DISABLE
Device disable voltage threshold V
EN
Decreasing 2.1 2.55 3 V
(1) V
CC
provides self bias for the internal gate drive and control circuits. Device thermal limitations limit external loading.
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