Datasheet
TPS65161
TPS65161A, TPS65161B
www.ti.com
SLVS617E –APRIL 2006–REVISED MARCH 2013
DISSIPATION RATINGS
T
A
≤ 25°C T
A
= 70°C T
A
= 85°C
PACKAGE RTH
JA
POWER RATING POWER RATING POWER RATING
28-Pin HTSSOP 28°C/W (PowerPAD
(1)
soldered) 3.57 W 1.96 W 1.42 W
(1) See Texas Instruments application report SLMA002 regarding thermal characteristics of the PowerPAD package.
RECOMMENDED OPERATING CONDITIONS
over operating free-air temperature range (unless otherwise noted)
MIN NOM MAX UNIT
V
S
Output voltage range of the main boost converter
(1)
19 V
Input capacitor at VINB 2×22 μF
C
IN
Input capacitor AVIN 1 μF
Inductor boost converter
(2)
10
L μH
Inductor buck converter
(2)
15
V
(LOGIC)
Output voltage range of the step-down converter V
(LOGIC)
1.8 5.0 V
Output capacitor boost converter 3×22
C
O
μF
Output capacitor buck converter 2×22
T
A
Operating ambient temperature –40 85 °C
T
J
Operating junction temperature –40 125 °C
(1) The maximum output voltage is limited by the overvoltage protection threshold and not be the maximum switch voltage rating.
(2) See application section for further information.
ELECTRICAL CHARACTERISTICS
V
IN
= 12 V, SUP = V
IN
, EN1 = EN2 = V
IN
, V
S
= 15 V, V
(LOGIC)
= 3.3 V, T
A
= –40°C to 85°C, typical values are at T
A
= 25°C
(unless otherwise noted)
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
SUPPLY CURRENT
V
IN
Input voltage range 8 14.7 V
V
GH
= 2 × V
S
,
Quiescent current into AVIN 0.2 2
Boost converter not switching
I
Q
mA
V
GH
= 2 × V
S
,
Quiescent current into VINB 0.2 0.5
Buck converter not switching
Shutdown current into AVIN EN1 = EN2 = GND 0.1 2
I
SD
μA
Shutdown current into VINB EN1 = EN2 = GND 0.1 2
Shutdown current into SUP EN1 = EN2 = GND 0.1 4 μA
I
(SUP)
Quiescent current into SUP V
GH
= 2 × V
S
0.2 2 mA
TPS65161, TPS65161A; V
IN
falling. 6 6.4
V
UVLO
Undervoltage lockout threshold V
TPS65161B; V
IN
falling. 8 8.8
V
ref
Reference voltage 1.203 1.213 1.223 V
Thermal shutdown Temperature rising 155 °C
Thermal shutdown hysteresis 5 °C
LOGIC SIGNALS EN1, EN2, FREQ
V
IH
High-level input voltage EN1, EN2 2.0 V
V
IL
Low-level input voltage EN1, EN2 0.8 V
V
IH
High-level input voltage FREQ 1.7 V
V
IL
Low-level input voltage FREQ 0.4 V
I
Ikg
Input leakage current EN1 = EN2 = FREQ = GND or V
IN
0.01 0.1 μA
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