BUF420 Datasheet, PDF (1/7 Pages) STMicroelectronics – HIGH VOLTAGE FAST-SWITCHING NPN POWER TRANSISTOR

BUF420
BUF420M
HIGH VOLTAGE FAST-SWITCHING
NPN POWER TRANSISTOR
s SGS-THOMSON PREFERRED SALESTYPES
s NPN TRANSISTOR
s HIGH VOLTAGE CAPABILITY
s VERY HIGH SWITCHING SPEED
s MINIMUM LOT-TO-LOT SPREAD FOR
RELIABLE OPERATION
s LOW BASE-DRIVE REQUIREMENTS
APPLICATIONS:
s SWITCH MODE POWER SUPPLIES
s MOTOR CONTROL
DESCRIPTION
The BUF420 and BUF420M are manufactured
using High Voltage Multi Epitaxial Planar
technology for high switching speeds and high
voltage capacity. They use a Cellular Emitter
structure with planar edge termination to enhance
switching speeds while maintaining a wide
RBSOA.
The BUF series is designed for use in
high-frequency power supplies and motor control
applications.
3
2
1
TO-218
1
2
TO-3
(version ”R”)
INTERNAL SCHEMATIC DIAGRAM
For TO-3 :
C = Tab
E = Pin2.
ABSOLUTE MAXIMUM RATINGS
Symb ol
VCEV
V_CEO
V_{EB O}
IC
ICM
I_B
IBM
Pa ram et er
Collect or-Emitter Volt age (VBE = -1.5 V)
Collector-Emitter Voltage (I_B = 0)
Emitter-Base Volt age (I_C = 0)
Collector Current
Collector Peak Current (tp < 5 ms)
Base Current
Base Peak Current (tp < 5 ms)
Ptot T otal Dissipation at Tc = 25 ^oC
T_stg Storage Temperature
T_j
Max O peration Junction Temperature
July 1997
Valu e
850
450
7
30
60
6
9
T O-218
200
-65 to 150
150
TO-3
200
Un it
V
V
V
A
A
A
A
W
o_C
o_C
1/7