Datasheet

LM5032
www.ti.com SNVS344A –MARCH 2005–REVISED APRIL 2013
Absolute Maximum Ratings
(1)(2)
VIN to GND -0.3V to 105V
VCC to GND -0.3V to 16V
RT/SYNC, RES and DCL to GND -0.3V to 5.5V
CS Pins to GND -0.3V to 1.25V
All other inputs to GND -0.3V to 7V
ESD Rating
(3)
Human Body Model 2kV
Storage Temperature Range -55°C to 150°C
Junction Temperature 150°C
Lead Temperature (Soldering 4 sec),
(4)
260°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 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.
(4) For detailed information on soldering plastic TSSOP packages, refer to the Packaging Data Book available from Texas Instruments.
Operating Ratings
(1)
VIN Voltage 13.0V to 100V
External Voltage Applied to VCC 8V to 15V
Operating Junction Temperature -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 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. VIN = 48V, VCC = 10V externally applied, R
T
= R
DCL
= 42.2kΩ, UVLO = 1.5V, unless otherwise stated,
see
(1)
and see
(2)
.
Symbol Parameter Conditions Min Typ Max Units
Startup Regulator (VIN, VCC Pins)
V
CC
Reg V
CC
voltage Ext. supply disconnected. 7.4 7.7 8 V
I
CC(Lim)
V
CC
current limit VCC = 0V. 19 22 mA
V
CC
UVT V
CC
Under-voltage threshold Ext. supply disconnected, VIN =11V. VCC - 300 VCC - V
(V
CC
increasing) mV 100 mV
V
CC
decreasing 5.5 6.2 6.9 V
I
IN
Startup regulator current VIN = 90V, UVLO = 0V 500 600 µA
I
CC
In Supply current into VCC from Output loads = open, V
CC
= 10V 4.3 7 mA
external source
UVLO
UVLO Under-voltage threshold 1.22 1.25 1.28 V
I
HYST
Hysteresis current 16 20 24 µA
Current Sense Input (CS1, CS2 Pins)
CS Current Limit Threshold 0.45 0.5 0.55 V
CS delay to output CS1 (CS2) taken from zero to 1.0V. Time 40 ns
for OUT1 (OUT2) to fall to 90% of VCC.
Output load = 0 pF.
Leading edge blanking time at 50 ns
CS1 (CS2)
CS1 (CS2) sink impedance Internal pull-down FET on. 30 55 Ω
(clocked)
(1) All electrical characteristics having room temperature limits are tested during production with T
A
= 25°C. All hot and cold limits are
specified by correlating the electrical characteristics to process and temperature variations and applying statistical process control.
(2) Typical specifications represent the most likely parametric norm at 25°C operation
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