LN100 Datasheet, PDF (5/6 Pages) Supertex, Inc – 1200V Cascoded N-Channel MOSFET

Typical Application Circuits (cont.)
LN100
High Voltage, Low Current Digital Pulser
In Figure 3, the six LN100’s are used as the main output
stage for a 3000V low frequency digital pulser. The first three
LN100s are used to charge the load up to 3000V. The next
three LN100s are used to discharge the load back to ground.
The integrated resistors in each of the LN100 allows the
3000V to be divided into thirds. Each LN100 will only need
to hold off 1000V.
C
V1
V2
V3
HV = 3000V
R₁
DRAIN
M1
R₂
R₃
M2
V1
R₁
R₂
V2
R₃
V3
HV_OUT =
0 to 3000V
C_OUT
DRAIN
M1
M2
GATE
V1
V2
V3
D
LN100
SOURCE
R₁
DRAIN
M1
R₂
R₃
M2
GATE
V1
V2
V3
D
LN100
SOURCE
R₁
DRAIN
M1
R₂
R₃
M2
GATE
V1
V2
V3
D
LN100
SOURCE
R₁
DRAIN
M1
R₂
R₃
M2
GATE
V1
V2
V3
D
LN100
SOURCE
R₁
DRAIN
M1
R₂
R₃
M2
D
SOURCE
D
SOURCE
GATE
LN100
GATE
LN100
V_IN =
0 to 3.0V
Figure 3: High Voltage Low Current 3000V Digital Pulser
Doc.# DSFP-LN100
A031414
Supertex inc.
5
www.supertex.com