Datasheet

C2
4.7 Fm
IFB1
IFB2
IFB3
IFB4
IFB5
IFB6
V
O
SW
PGND
GND
10 WLEDinseries,120 mA total
Current
Regulator
Dimming
Control
L1
10 Hm
Q1
D2
Cin
C4
0.1 Fm
Optional
CurrentMode
PWMControl
IFB 1... IFB 6
Fault
Protection
5 Vto 24 V
C1
4.7 Fm
R3
51 W
C3
1 Fm
InternalRegulator
(TPS61181/2only)
EN
PWMDimming
Fault
ISET
V
BAT
EN
DCTRL
D1
R1
R3
100kW
TPS61180/1/2
SLVS801E –DECEMBER 2007–REVISED APRIL 2013 www.ti.com
FUNCTIONAL BLOCK DIAGRAM
ABSOLUTE MAXIMUM RATINGS
over operating free-air temperature range (unless otherwise noted)
(1)
VALUE UNIT
Voltages on pin V
BAT
and Fault
(2)
–0.3 to 24 V
Voltage on pin Cin
(2)
–0.3 to 3.6 V
Voltage on pin SW and V
O
(2)
–0.3 to 40 V
Voltage on pin IFB1 to IFB6
(2)
–0.3 to 20 V
Voltage on all other pins
(2)
–0.3 to 7 V
Continuous power dissipation See Dissipation Rating Table
Operating junction temperature range –40 to 150 °C
Storage temperature range –65 to 150 °C
(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.
DISSIPATION RATINGS
PACKAGE R
θJA
T
A
≤ 25°C T
A
= 70°C T
A
= 85°C
POWER RATING POWER RATING POWER RATING
TPS61180/1/2RTE
(1)
270°C/W 370 mW 204 mW 148 mW
TPS61180/1/2RTE
(2)
48.7°C/W 2.05 W 1.13 W 821 mW
(1) The JEDEC low-K (1s) board used to derive this data was a 3in×3in, two-layer board with 2-ounce copper traces on top of the board.
(2) The JEDEC high-K (2s2p) board used to derive this data was a 3in×3in, multilayer board with 1-ounce internal power and ground.
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