TPS51216
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SLUSAB9 –NOVEMBER 2010
ELECTRICAL CHARACTERISTICS (continued)
over operating free-air temperature range, VV5IN=5V, VLDOIN is connected to VDDQ output, VMODE=0V, VS3=VS5=5V (unless
otherwise noted)
PARAMETER
TEST CONDITION
MIN
TYP
MAX UNIT
VDDQ MOSFET DRIVER
Source, IDRVH = –50 mA
1.6
0.6
0.9
0.5
10
3.0
RDRVH
RDRVL
tDEAD
DRVH resistance
DRVL resistance
Dead time
Sink, IDRVH = 50 mA
Source, IDRVL = –50 mA
Sink, IDRVL = 50 mA
DRVH-off to DRVL-on
DRVL-off to DRVH-on
1.5
Ω
2.0
1.2
ns
20
INTERNAL BOOT STRAP SW
VFBST
Forward Voltage
VV5IN-VBST, TA = 25°C, IF = 10 mA
0.1
0.2
1.5
V
IVBSTLK
VBST leakage current
TA = 25°C, VVBST = 33 V, VSW = 28 V
0.01
mA
LOGIC THRESHOLD
IMODE
MODE source current
14
580
15
600
16
620
mA
MODE 0
MODE 1
MODE 2
MODE 3
829
854
879
VTHMODE
MODE threshold voltage
mV
1202
1760
1232
1800
1262
1840
0.5
VIL
S3/S5 low-level voltage
S3/S5 high-level voltage
S3/S5 hysteresis voltage
S3/S5 input leak current
VIH
1.8
–1
V
VIHYST
0.25
0
VILK
1
mA
SOFT START
Internal soft-start time, CVREF = 0.1 mF,
S5 rising to VVDDQSNS > 0.99 × VREFIN
tSS
VDDQ soft-start time
1.1
ms
PGOOD COMPARATOR
PGOOD in from higher
106%
90%
114%
82%
3
108%
92%
116%
84%
5.9
110%
94%
PGOOD in from lower
VTHPG
VDDQ PGOOD threshold
PGOOD out to higher
118%
86%
PGOOD out to lower
IPG
PGOOD sink current
PGOOD delay time
PGOOD start-up delay
VPGOOD = 0.5 V
mA
ms
ns
Delay for PGOOD in
0.8
1
1.2
tPGDLY
tPGSSDLY
Delay for PGOOD out, with 100 mV over drive
CVREF = 0.1 mF, S5 rising to PGOOD rising
330
2.5
ms
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