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TPS28226DRBR データシート(PDF) 6 Page - Texas Instruments

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部品番号 TPS28226DRBR
部品情報  TPS28226 High-Frequency 4-A Sink Synchronous MOSFET Drivers
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メーカー  TI1 [Texas Instruments]
ホームページ  http://www.ti.com
Logo TI1 - Texas Instruments

TPS28226DRBR データシート(HTML) 6 Page - Texas Instruments

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background image
Normal switching
PWM
LGATE
UGATE
3-State
window
90%
10%
t
DLL
50%
t
FL
50%
t
PWM_MIN
t
DTU
90%
10%
t
RU
90%
10%
t
DLU
t
FU
t
DTL
90%
10%
t
RL
t
HLD_R
90%
10%
90%
90%
t
HLD_F
Enter into 3-State at
PWM rise
Exit 3-State
Enter into 3-State at
PWM fall
LGATE exits 3-State after PWM
goes High and then Low
TPS28226
SLUS791A – JULY 2007 – REVISED SEPTEMBER 2015
www.ti.com
Electrical Characteristics
(1)
(continued)
VDD = 7.2 V, EN/PG pulled up to VDD by 100-kΩ resistor, TA = TJ = –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(2)
VLGATE = 2.5 V
2.0
A
tRL
Rise time(2)
CL = 3 nF
10
ns
Sink resistance
500 mA sink current
0.4
1.0
Ω
Sink current(2)
VLGATE = 2.5 V
4.0
A
Fall time(2)
CL = 3 nF
5
ns
BOOTSTRAP DIODE
VF
Forward voltage
Forward bias current 100 mA
1.0
V
THERMAL SHUTDOWN
Rising threshold(2)
150
160
170
°C
Falling threshold(2)
130
140
150
°C
Hysteresis
20
°C
6.6 Switching Characteristics
over operating free-air temperature range (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
SWITCHING TIME
tDLU
UGATE turn-off propagation Delay
CL = 3 nF
14
ns
tDLL
LGATE turn-off propagation Delay
CL = 3 nF
14
ns
Dead time LGATE turn off to
tDTU
CL = 3 nF
14
ns
UGATE turn on
Dead time UGATE turn off to
tDTL
CL = 3 nF
14
ns
LGATE turn on
Figure 1. TPS28226 Timing Diagram
6
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Product Folder Links: TPS28226


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