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參數資料
| 型號： | TPS65161PWPRG4 |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 穩壓器 |
| 英文描述： | 4.2 A SWITCHING REGULATOR, 900 kHz SWITCHING FREQ-MAX, PDSO28 |
| 封裝： | GREEN, PLASTIC, HTSSOP-28 |
| 文件頁數： | 23/34頁 |
| 文件大小： | 847K |
| 代理商： | TPS65161PWPRG4 |
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www.ti.com ............................................................................................................................................... SLVS617D – APRIL 2006 – REVISED SEPTEMBER 2009
DISSIPATION RATINGS
TA ≤ 25°C
TA = 70°C
TA = 85°C
PACKAGE
RTHJA
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
VS
Output voltage range of the main boost converter(1)
19
V
Input capacitor at VINB
2×22
μF
CIN
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
CO
μF
Output capacitor buck converter
2×22
TA
Operating ambient temperature
–40
85
°C
TJ
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
VIN = 12 V, SUP = VIN, EN1 = EN2 = VIN, VS = 15 V, V(LOGIC) = 3.3 V, TA = –40°C to 85°C, typical values are at TA = 25°C
(unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
SUPPLY CURRENT
VIN
Input voltage range
8
14.7
V
VGH = 2 × VS,
Quiescent current into AVIN
0.2
2
Boost converter not switching
IQ
mA
VGH = 2 × VS,
Quiescent current into VINB
0.2
0.5
Buck converter not switching
Shutdown current into AVIN
EN1 = EN2 = GND
0.1
2
ISD
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
VGH = 2 × VS
0.2
2
mA
TPS65161, TPS65161A; VIN falling.
6
6.4
VUVLO
Undervoltage lockout threshold
V
TPS65161B; VIN falling.
8
8.8
Vref
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
VIH
High-level input voltage EN1, EN2
2.0
V
VIL
Low-level input voltage EN1, EN2
0.8
V
VIH
High-level input voltage FREQ
1.7
V
VIL
Low-level input voltage FREQ
0.4
V
IIkg
Input leakage current
EN1 = EN2 = FREQ = GND or VIN
0.01
0.1
μA
Copyright 2006–2009, Texas Instruments Incorporated
3
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