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PDF M57950L Data sheet ( Hoja de datos )
| Número de pieza | M57950L | |
| Descripción | HYBRID IC FOR DRIVING TRANSISTOR MODULES | |
| Fabricantes | Mitsubishi | |
| Logotipo |  |
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MITSUBISHI HYBRID ICs
M57950L
DESCRIPTION
M57950L is a Hybrid Integrated Circuit designed for driving Transis-
tor Modules QM30DY, QM50DY, etc., in an Inverter application. This
device operates as an isolation amplifier for Transistor Modules due
to the electrical isolation between the input and output, and features
a small outline of 10-pin SIP.
FEATURES
q Electrical isolation between input and output with integrated opto-
coupler.
Viso=2500Vrms
Large load and sink current driving capability
.................................................................. IOL=–1A (MAX)
................................................................ IOLP=–3A (MAX)
q Applicable with TTL input
q Small outline, 10-pin SIP package
APPLICATION
To drive Transistor Modules for Inverter applications
HYBRID IC FOR DRIVING TRANSISTOR MODULES
OUTLINE DRAWING
29MAX.
Dimensions in mm
2.54±0.1
2.54!9=22.86±0.3 2.5MAX.
1 10 1.8MAX.
0.35±0.2
8.5MAX.
10.0MAX.
BLOCK DIAGRAM
390Ω
1
2
10
Tr1
INTERFACE
CIRCUIT
9
8
7
Tr2
OPTO-COUPLER
6
5
CIRCUIT DIAGRAM
1
PC
2
10
9
Tr1
8
7
Tr2
6
5
Feb.1999
1 page  
MITSUBISHI HYBRID ICs
M57950L
HYBRID IC FOR DRIVING TRANSISTOR MODULES
EXPLANATION OF FUNCTION
(cf. Fig. 2, 3, 4, and 5)
(1) With low input level (Vin=0 ~ 1V)
Tr1 ...... OFF, Tr2 ...... ON
The base terminal of transistor module is reverse biased with re-
spect to its emitter by reverse power supply VEE.
(2) With high input level (Vin=4 ~ 5V)
Tr1 ...... ON, Tr2 ...... OFF
The base terminal of transistor module is forward biased and
drived by the current IOH through the resistor Rext.
(3) With low input level (Vin=0 ~ 1V)
Tr1 ...... OFF, Tr2 ...... ON
The base terminal of transistor module is reverse biased as
stated in (1) after flowing reverse recovery pulse current IOLP. The
steady reverse base current is limited by the internal base-emit-
ter resistor RBE of the transistor module.
M57950L Typical application circuit
+5V M57950L
1/2QM50DY etc.
LOAD
IC
IO
DRIVER
TTL etc.
SINK
10mA
INPUT
12
VIN
345678
R2
+
Cext
Rext
VEE
ZD
R1
VO
+
C1
VCC
+
C2
50/60HZ
AC
M57950L Typical operating waveform
VIN
VI
0
–IO IOH(IB1)
0
IOLP(IB2)
VO VOH
0 VOL
t
t
t
Note: IOH and IOLP correspond to base forward current IB1
and base reverse current IB2 of the transistor module
to be driven respectively.
Feb.1999
5 Page | ||
| Páginas | Total 5 Páginas | |
| PDF Descargar | [ Datasheet M57950L.PDF ] | |
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