Datasheet
TPS61181A
SLVSAN6A –FEBRUARY 2011– REVISED MARCH 2011
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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.
ORDERING INFORMATION
(1)
PACKAGE PACKAGE MARKING
TPS61181ARTE QWF
(1) For the most current package and ordering information, see the Package Option Addendum at the end
of this document, or see the TI website at www.ti.com.
ABSOLUTE MAXIMUM RATINGS
over operating free-air temperature range (unless otherwise noted)
(1)
VALUE UNIT
MIN MAX
V
BAT
and Fault –0.3 24
C
in
and ISET –0.3 3.6
Voltage Range
(2)
V
SW and V
O
–0.3 40
IFB1 to IFB6, EN and DCTRL –0.3 20
Humen Body Mode – (HBM) 3 kV
ESD Rating
(3)
Machine Mode – (MM) 200 V
Charge Device Mode – (CDM) 1 kV
Continuous power dissipation See Thermal
Information Table
Operating junction temperature range –40 150
°C
Storage temperature range –65 150
(1) Stresses beyond those listed under absolute maximum ratings may cause permanent damage to the device. These are stress ratings
only, and functional operation of the device at these or any other conditions beyond those indicated under recommended operating
conditions is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
(2) All voltage values are with respect to network ground terminal.
(3) ESD testing is performed according to the respective JESD22 JEDEC standard.
THERMAL INFORMATION
TPS61181A
THERMAL METRIC
(1)
UNITS
QFN (16) PIN
θ
JA
Junction-to-ambient thermal resistance 43.1
θ
JCtop
Junction-to-case (top) thermal resistance 38.3
θ
JB
Junction-to-board thermal resistance 14.6
°C/W
ψ
JT
Junction-to-top characterization parameter 0.4
ψ
JB
Junction-to-board characterization parameter 14.4
θ
JCbot
Junction-to-case (bottom) thermal resistance 3.6
(1) For more information about traditional and new thermal metrics, see the IC Package Thermal Metrics application report, SPRA953.
RECOMMENDED OPERATING CONDITIONS
MIN TYP MAX UNIT
V
bat
Battery input voltage range 4.5 24 V
V
O
Output voltage range Vin 38 V
L Inductor 4.7 10 μH
C
O
Output capacitor 2.2 10 μF
PWM dimming frequency at D
PWM
≥ 1% 0.1 1
F
PWM
kHz
PWM dimming frequency at D
PWM
≥ 5% 1 5
T
A
Operating ambient temperature –40 85 °C
T
J
Operating junction temperature –40 125 °C
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