參數(shù)資料
型號(hào)： TPS51427ARHBT
廠商： TEXAS INSTRUMENTS INC
元件分類： 穩(wěn)壓器
英文描述： DUAL SWITCHING CONTROLLER, PQCC32
封裝： 5 X 5 MM, GREEN, PLASTIC, QFN-32
文件頁數(shù)： 23/42頁
文件大?。?/td> 2131K
代理商： TPS51427ARHBT
ABSOLUTE MAXIMUM RATINGS
(1)
DISSIPATION RATINGS
(1)
RECOMMENDED OPERATING CONDITIONS
www.ti.com .................................................................................................................................................. SLUS843B – MAY 2008 – REVISED SEPTEMBER 2008
Over operating free-air temperature range; all voltages are with respect to GND (unless otherwise noted).
PARAMETER
VALUE
UNIT
5V voltage range
V5DRV, V5FILT
–0.3 to 7
VIN, ENLDO
–0.3 to 30
VBST1, VBST2
–0.3 to 37
V
VBST1, VBST2 (w.r.t. LLx)
–0.3 to 7
Input voltage range(2)
EN1, EN2, VOUT1, VOUT2, VFB1, REFIN2, TRIP1, TRIP2, SKIPSEL,
–0.3 to 7
TONSEL, VSW, LDOREFIN
TRIP1, TRIP2
–0.3 to (V5FILT + 0.3)
DRVH1, DRVH2
–2 to 37
DRVH1, DRVH2 (w.r.t. LLx)
–0.3 to 7
Output voltage
LL1, LL2
–2 to 30
V
range(2)
DRVL1, DRVL2, VREF2, PGOOD1, PGOOD2, LDO, VREF3
–0.3 to 7
PGND
–0.3 to 0.3
Tstg Storage temperature range
–55 to +150
°C
TJ
Junction temperature range
+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 the network ground terminal unless otherwise noted.
TA < +25°C
DERATING FACTOR
TA = +85°C
PACKAGE
POWER RATING
ABOVE TA = +25°C
POWER RATING
32Ld 5 × 5 QFN
2.320 W
23.2 mW/°C
0.93 W
(1)
Dissipation ratings are calculated based on the usage of nine standard thermal vias and thermal pad soldered on the PCB. If thermal
pad is not soldered to the PCB, the junction-to-ambient thermal resistance is 88.6°C/W.
Over operating free-air temperature range (unless otherwise noted).
MIN
TYP
MAX
UNIT
Supply input voltage range
V5DRV, V5FILT
4.5
5.5
V
Input voltage range
VBST1, VBST2
–0.1
34
VBST1, VBST2 (with regard to LLx)
–0.1
5.5
EN1, EN2, VOUT1, VFB1, REFIN2, TRIP1, TRIP2, SKIPSEL, TONSEL,
–0.1
5.5
ENLDO,VSW, LDOREFIN
VOUT2
–0.1
3.7
Output voltage range
DRVH1, DRVH2
–0.8
34
V
DRVH1, DRVH2 (w.r.t. LLx)
–0.1
5.5
LL1, LL2
–0.8
28
DRVL1, DRVL2, VREF2, PGOOD1, PGOOD2, LDO, VREF3
–0.1
5.5
PGND
–0.1
0.1
Operating free-air temperature, TA
–40
+85
°C
Copyright 2008, Texas Instruments Incorporated
3
Product Folder Link(s): TPS51427A
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