LM5005
SNVS397D –SEPTEMBER 2005–REVISED MARCH 2013
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Absolute Maximum Ratings
(1)(2)
V
IN
to GND 76V
BST to GND 90V
PRE to GND 76V
SW to GND (Steady State) -1.5V
BST to V
CC
76V
V
CC
to GND 14V
BST to SW 14V
OUT to GND Limited to Vin
SD, SYNC, SS, FB to GND 7V
ESD Rating
(3)
Human Body Model 2kV
Storage Temperature Range -65°C to +150°C
(1) Absolute Maximum Ratings are limits beyond which damage to the device may occur.
(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 100pF capacitor discharged through a 1.5kΩ resistor into each pin.
Operating Ratings
(1)
V
IN
7V to 75V
Operation Junction Temperature −40°C to + 125°C
(1) 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
Specifications with standard typeface are for T
J
= 25°C, and those with boldface type apply over full Operating Junction
Temperature range. V
IN
= 48V, R
T
= 32.4kΩ unless otherwise stated.
Symbol Parameter Conditions Min
(1)
Typ Max
(1)
Units
STARTUP REGULATOR
VccReg Vcc Regulator Output 6.85 7.15 7.45 V
Vcc LDO Mode turn-off 9 V
Vcc Current Limit Vcc = 0V 20 mA
VCC SUPPLY
Vcc UVLO Threshold (Vcc increasing) 5.95 6.35 6.75 V
Vcc Undervoltage Hysteresis 1 V
Bias Current (Iin) FB = 1.3V 5 mA
Shutdown Current (Iin) SD = 0V 60 100 µA
SHUTDOWN THRESHOLDS
Shutdown Threshold 0.5 0.7 0.9 V
Shutdown Hysteresis 0.1 V
Standby Threshold 1.18 1.225 1.27 V
Standby Hysteresis 0.1 V
SD Pull-up Current Source 5 µA
SWITCH CHARACTERSICS
Buck Switch Rds(on) 160 320 mΩ
BOOST UVLO 3.8 V
BOOST UVLO Hysteresis 0.56 V
Pre-charge Switch Rds(on) 75 Ω
Pre-charge Switch on-time 275 ns
CURRENT LIMIT
(1) Min and Max limits are 100% production tested at 25°C. Limits over the operating temperature range are ensured through correlation
using Statistical Quality Control (SQC) methods. Limits are used to calculate Average Outgoing Quality Level (AOQL).
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