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TPS51220 Datasheet(PDF) 3 Page - Texas Instruments

Part # TPS51220
Description  Fixed Frequency, 99% Duty Cycle Peak Current Mode Notebook System Power Controller
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Manufacturer  TI [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI - Texas Instruments

TPS51220 Datasheet(HTML) 3 Page - Texas Instruments

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TPS51220
www.ti.com
SLVS785C – OCTOBER 2007 – REVISED JULY 2009
ABSOLUTE MAXIMUM RATINGS
(1)
over operating free-air temperature range (unless otherwise noted)
VALUE
UNIT
VIN
–0.3 to 30
V
VBST1, VBST2
–0.3 to 35
V
VBST1, VBST2(3)
–0.3 to 7
V
SW1, SW2
–7 to 30
V
VI
Input voltage range (2)
CSP1, CSP2, CSN1, CSN2
–1 to 13.5
V
EN, EN1, EN2, VFB1, VFB2, TRIP, SKIPSEL1, SKIPSEL2, FUNC
–0.3 to 7
V
V5SW
–0.3 to 7
V
V5SW (to VREG5)(4)
–7 to 7
V
DRVH1, DRVH2
–7 to 35
V
DRVH1, DRVH2 (3)
–0.3 to 7
V
VO
Output voltage range(2)
DRVL1, DRVL2, COMP1, COMP2, VREG5, RF, VREF2,
–0.3 to 7
V
PGOOD1, PGOOD2
VREG3
–0.3 to 3.6
V
TJ
Operating junction temperature range
–40 to 125
°C
Tstg
Storage temperature
–55 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 the network ground terminal unless otherwise noted.
(3)
Voltage values are with respect to the corresponding SW terminal.
(4)
When EN is high and V5SW is grounded, or voltage is applied to V5SW when EN is low.
DISSIPATION RATINGS (2 oz. Trace and Copper Pad with Solder)
TA < 25°C
DERATING FACTOR
TA = 85°C
PACKAGE
POWER RATING
ABOVE TA = 25°C
POWER RATING
32 pin RHB
2.2 W
23 mW/°C
0.9 W
RECOMMENDED OPERATING CONDITIONS
MIN
TYP
MAX
UNIT
VIN
4.5
28
V
Supply
VSS
voltage
V5SW
–0.8
6
DRVH1, DRVH2
–4.0
33
VBST1, VBST2,
–0.1
33
DRVH1, DRVH2 (wrt SW1, SW2)
–0.1
6
DRVH1, DRVH2 (negative overshoot -6 V for t< 20% duration of switching period)
–6
33
VI
SW1, SW2
–4.0
28
I/O voltage
V
VO
SW1, SW2 (negative overshoot -6 V for t< 20% duration of switching period)
–6
28
CSP1, CSP2, CSN1, CSN2
–0.8
13
EN, EN1, EN2, VFB1, VFB2, TRIP, DRVL1, DRVL2, COMP1, COMP2, VREG5,
–0.1
6
RF, VREF2, PGOOD1, PGOOD2, SKIPSEL1, SKIPSEL2, FUNC
VREG3
–0.1
3.5
TA
Operating free-air temperature
–40
85
°C
Copyright © 2007–2009, Texas Instruments Incorporated
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