TPS51220A_16 Datasheet, PDF (3/51 Pages) Texas Instruments – Fixed Frequency, 99% Duty Cycle Peak Current Mode Notebook System Power Controller

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TPS51220A
SLUS897E – DECEMBER 2008 – REVISED JANUARY 2013
ABSOLUTE MAXIMUM RATINGS⁽¹⁾
over operating free-air temperature range (unless otherwise noted)
TPS51220A
UNIT
VIN
–0.3 to 34
VBST1, VBST2
VBST1, VBST2⁽³⁾
–0.3 to 39
–0.3 to 7
Input voltage range ⁽²⁾
SW1, SW2
CSP1, CSP2, CSN1, CSN2
–7 to 34
V
–1 to 13.5
EN, EN1, EN2, VFB1, VFB2, TRIP, SKIPSEL1, SKIPSEL2, FUNC
–0.3 to 7
V5SW
V5SW (to VREG5)⁽⁴⁾
–1 to 7
–7 to 7
Output voltage range⁽²⁾
DRVH1, DRVH2
DRVH1, DRVH2⁽³⁾
DRVH1, DRVH2⁽³⁾ (duty cycle < 2%)
DRVL1, DRVL2 (duty cycle < 2%)
–7 to 39
–0.3 to 7
–2 to 7
–2 to 7
V
DRVL1, DRVL2, COMP1, COMP2, VREG5, RF, VREF2,
PGOOD1, PGOOD2
–0.3 to 7
VREG3
–0.3 to 3.6
T_J
Junction temperature
T_stg
Storage temperature
150
°C
–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)
PACKAGE
T_A < 25°C
POWER RATING
(W)
DERATING FACTOR
ABOVE T_A = 25°C
(mW/°C)
T_A = 85°C
POWER RATING
(W)
32-pin RTV
1.7
17
0.7
32-pin RSN
2.3
23
0.9
RECOMMENDED OPERATING CONDITIONS
Supply voltage
VIN
V5SW
VBST1, VBST2
DRVH1, DRVH2
DRVH1, DRVH2 (wrt SW1, 2)
DRVH1, DRVH2 (negative overshoot -6 V for t < 20% duration of the
switching period)
I/O voltage
SW1, SW2
SW1, SW2 (negative overshoot -6 V for t < 20% duration of the
switching period)
CSP1, CSP2, CSN1, CSN2
EN, EN1, EN2, VFB1, VFB2, TRIP, DRVL1, DRVL2, COMP1, COMP2,
VREG5, RF, VREF2, PGOOD1, PGOOD2, SKIPSEL1, SKIPSEL2,
FUNC
VREG3
T_A
Operating free-air temperature
MIN TYP MAX UNIT
4.5
32 V
–0.8
6
–0.1
37
–4.
37
–0.1
6
-6
37
–4.
32
-6
32
V
–0.8
13
–0.1
6
–0.1
3.5
–40
85 °C
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