Datasheet

TPS28225
TPS28226
www.ti.com SLUS710C –MAY 2006–REVISED APRIL 2010
ELECTRICAL CHARACTERISTICS
(1)
(continued)
V
DD
= 7.2 V, EN/PG pulled up to V
DD
by 100-kΩ resistor, T
A
= T
J
= –40°C to 125°C (unless otherwise noted)
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
LOWER GATE DRIVER OUTPUT (LGATE)
Source resistance 500 mA source current 1.0 2.0 Ω
Source current
(3)
V
LGATE
= 2.5 V 2.0 A
t
RL
Rise time
(3)
C
L
= 3 nF 10 ns
Sink resistance 500 mA sink current 0.4 1.0 Ω
Sink current
(3)
V
LGATE
= 2.5 V 4.0 A
Fall time
(3)
C
L
= 3 nF 5 ns
SWITCHING TIME
t
DLU
UGATE turn-off propagation Delay C
L
= 3 nF 14
t
DLL
LGATE turn-off propagation Delay C
L
= 3 nF 14
ns
t
DTU
Dead time LGATE turn-off to UGATE turn-on C
L
= 3 nF 14
t
DTL
Dead time UGATE turn-off to LGATE turn-on C
L
= 3 nF 14
BOOTSTRAP DIODE
V
F
Forward voltage Forward bias current 100 mA 1.0 V
THERMAL SHUTDOWN
Rising threshold
(3)
150 160 170
Falling threshold
(3)
130 140 150 °C
Hysteresis 20
(3) Not tested in production
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