Datasheet

LM25116
SNVS509D –APRIL 2007–REVISED FEBRUARY 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)
VIN to GND -0.3V to 45V
VCC, VCCX, UVLO to GND
(2)
-0.3 to 16V
SW, CS to GND -3.0 to 45V
HB to SW -0.3 to 16V
HO to SW -0.3 to HB+0.3V
VOUT to GND -0.3 to 45V
CSG to GND -1V to 1V
LO to GND -0.3 to VCC+0.3V
SS to GND -0.3 to 7V
FB to GND -0.3 to 7V
DEMB to GND -0.3 to VCC
RT to GND -0.3 to 7V
EN to GND -0.3 to 45V
ESD Rating, HBM
(3)
2 kV
Storage Temperature Range -55°C to +150°C
Junction Temperature +150°C
(1) Absolute Maximum Ratings indicate limits beyond which damage to the component may occur.
(2) These pins must not exceed VIN.
(3) The human body model is a 100 pF capacitor discharged through a 1.5 kΩ resistor into each pin. LO, HO and HB are rated at 1kV. 2kV
rating for all pins except VIN which is rated for 1.5kV.
Operating Ratings
(1)(2)
VIN 6V to 42V
VCC, VCCX 4.75V to 15V
HB to SW 4.75V to 15V
DEMB to GND -0.3V to 2V
Junction Temperature -40°C to +125°C
(1) Operating Ratings are conditions under which operation of the device is intended to be functional. Operating Ratings do not imply
specified performance limits. For specified performance limits and associated test conditions, see the Electrical Characteristics tables.
(2) Note: RAMP, COMP are output pins. As such they are not specified to have an external voltage applied.
Electrical Characteristics
Limits in standard type are for T
J
= 25°C only; limits in boldface type apply over the junction temperature range of -40°C to
+125°C and are provided for reference only. Unless otherwise specified, the following conditions apply: VIN = 24V, VCC =
7.4V, VCCX = 0V, EN = 5V, R
T
= 16 kΩ, no load on LO and HO.
Symbol Parameter Conditions Min Typ Max Unit
VIN Supply
I
BIAS
VIN Operating Current VCCX = 0V 4.6 6.5 mA
I
BIASX
VIN Operating Current VCCX = 5V 1 1.5 mA
I
STDBY
VIN Shutdown Current EN = 0V 1 10 µA
VCC Regulator
V
CC(REG)
VCC Regulation 7.1 7.4 7.7 V
VCC LDO Mode Turn-off 10.6 V
VCC Regulation VIN = 6V 5.0 5.9 6.0 V
VCC Sourcing Current Limit VCC = 0V 15 26 mA
VCCX Switch Threshold VCCX Rising 4.3 4.5 4.7 V
VCCX Switch Hysteresis 0.25 V
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