M57955L Datasheet, PDF (1/4 Pages) Mitsubishi Electric Semiconductor – HYBRID IC FOR DRIVING HIGH BETA TRANSISTOR MODULES

MITSUBISHI HYBRID ICs
M57955L
HYBRID IC FOR DRIVING HIGH BETA TRANSISTOR MODULES
DESCRIPTION
M57955L is a Hybrid Integrated Circuit designed for driving High
Beta Transistor Modules QM50DY-HB, etc., in an Inverter application.
This device operates as an isolation amplifier Transistor Modules
due to the electrical isolation between the input and output circuits
with a opto-coupler, as well as its driving capability which only re-
quires single power supply.
FEATURES
q Electrical isolation between input and output with integrated opto-
coupler. Viso=2500Vrms
q Applicable with single power supply (7 ~ 9V)
q Applicable with TTL input
APPLICATION
To drive High Beta Transistor Modules for Inverter applications
OUTLINE DRAWING
26MAX.
Dimensions in mm
2.54
3MAX.
0.55±0.1
2.54!7=17.78
1.8MAX.
4MAX.
0.35±0.2
8.5MAX.
10.0MAX.
BLOCK DIAGRAM
390Ω
2
INTER-
FACE
CIRCUIT
1
OPTO-COUPLER
5
Tr1
6
7
Tr2
8
CIRCUIT DIAGRAM
2
5
PC
6
7
1
8
Feb.1999