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TPS2831 Fiches technique(PDF) 6 Page - Texas Instruments

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No de pièce TPS2831
Description  FAST SYNCHRONOUS-BUCK MOSFET DRIVERS
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Fabricant  TI [Texas Instruments]
Site Internet  http://www.ti.com
Logo TI - Texas Instruments

TPS2831 Fiches technique(HTML) 6 Page - Texas Instruments

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TPS2830, TPS2831
FAST SYNCHRONOUSBUCK MOSFET DRIVERS
WITH DEADTIME CONTROL
SLVS196C − JANUARY1999 − REVISED JANUARY 2001
6
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
electrical characteristics over recommended operating virtual junction temperature range,
VCC = 6.5 V, ENABLE = High, CL = 3.3 nF (unless otherwise noted) (continued)
dead-time control
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
VIH
High-level input voltage
LOWDR
Over the VCC range (see Note 3)
0.7VCC
V
VIL
Low-level input voltage
LOWDR
Over the VCC range (see Note 3)
1
V
VIH
High-level input voltage
DT
Over the VCC range
0.7VCC
V
VIL
Low-level input voltage
DT
Over the VCC range
1
V
NOTE 3: Ensured by design, not production tested.
digital control terminals (IN, CROWBAR, ENABLE, SYNC)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
VIH
High-level input voltage
Over the VCC range
0.7VCC
V
VIL
Low-level input voltage
Over the VCC range
1
V
switching characteristics over recommended operating virtual junction temperature range,
ENABLE = High, CL = 3.3 nF (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
VBOOT = 4.5 V,
VBOOTLO = 0 V
60
HIGHDR output (see Note 3)
VBOOT = 6.5 V,
VBOOTLO = 0 V
50
ns
Rise time
HIGHDR output (see Note 3)
VBOOT = 12 V,
VBOOTLO = 0 V
50
ns
Rise time
VCC = 4.5 V
40
LOWDR output (see Note 3)
VCC = 6.5 V
30
ns
LOWDR output (see Note 3)
VCC = 12 V
30
ns
VBOOT = 4.5 V,
VBOOTLO = 0 V
60
HIGHDR output (see Note 3)
VBOOT = 6.5 V,
VBOOTLO = 0 V
50
ns
Fall time
HIGHDR output (see Note 3)
VBOOT = 12 V,
VBOOTLO = 0 V
50
ns
Fall time
VCC = 4.5 V
40
LOWDR output (see Note 3)
VCC = 6.5 V
30
ns
LOWDR output (see Note 3)
VCC = 12 V
30
ns
HIGHDR going low
VBOOT = 4.5 V,
VBOOTLO = 0 V
130
HIGHDR going low
(excluding dead time) (see Note 3)
VBOOT = 6.5 V,
VBOOTLO = 0 V
100
ns
Propagation delay time
(excluding dead time) (see Note 3)
VBOOT = 12 V,
VBOOTLO = 0 V
75
ns
Propagation delay time
LOWDR going high
VBOOT = 4.5 V,
VBOOTLO = 0 V
80
LOWDR going high
(excluding dead time) (see Note 3)
VBOOT = 6.5 V,
VBOOTLO = 0 V
70
ns
(excluding dead time) (see Note 3)
VBOOT = 12 V,
VBOOTLO = 0 V
60
ns
LOWDR going low
VCC = 4.5 V
80
Propagation delay time
LOWDR going low
(excluding dead time) (see Note 3)
VCC = 6.5 V
70
ns
Propagation delay time
(excluding dead time) (see Note 3)
VCC = 12 V
60
ns
DT to LOWDR and
VCC = 4.5 V
40
170
Driver nonoverlap time
DT to LOWDR and
LOWDR to HIGHDR (see Note 3)
VCC = 6.5 V
25
135
ns
Driver nonoverlap time
LOWDR to HIGHDR (see Note 3)
VCC = 12 V
15
85
ns
NOTE 3: Ensured by design, not production tested.


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