IRLR7821C Datasheet, PDF (6/11 Pages) Kersemi Electronic Co., Ltd. – High Frequency Synchronous Buck Converters for Computer Processor Power

IRLR7821CPBF
IRLU7821CPBF
15V
VDS
L
DRIVER
RG
2V0GVS
tp
D.U.T
I_AS
0.01Ω
+
- ^VDD
A
Fig 12a. Unclamped Inductive Test Circuit
V_(BR)DSS
tp
I_AS
Fig 12b. Unclamped Inductive Waveforms
Current Regulator
Same Type as D.U.T.
50KΩ
12V
.2µF
.3µF
+
D.U.T. -V^DS
V_GS
3mA
I_G
I_D
Current Sampling Resistors
Fig 13. Gate Charge Test Circuit
1000
800
TOP
BOTTOM
ID
4.9A
8.5A
12A
600
400
200
0
25
50
75
100
125
150
175
Starting Tj, Junction Temperature
( ^°C)
Fig 12c. Maximum Avalanche Energy
Vs. Drain Current
V_DS
V_GS
R_G
R_D
D.U.T.
V_GS
Pulse Width ≤ 1 µs
Duty Factor ≤ 0.1 %
+_-VDD
Fig 14a. Switching Time Test Circuit
V_DS
90%
10%
V_GS
t_d(on) t_r
t_d(off) t_f
Fig 14b. Switching Time Waveforms
2014-8-25
6
www.kersemi.com