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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 requires single power supply.
OUTLINE DRAWING
26MAX.
Dimensions in mm
4.51.5 16.5MAX.
FEATURES
q Electrical isolation between input and output with integrated optocoupler. Viso=2500Vrms q Applicable with single power supply (7 ~ 9V) q Applicable with TTL input
2.54 3MAX. 2.54!7=17.78 0.550.1
0.350.2 1.8MAX. 4MAX. 8.5MAX. 10.0MAX.
APPLICATION
To drive High Beta Transistor Modules for Inverter applications
BLOCK DIAGRAM
390 2 Tr1
INTERFACE CIRCUIT
5
6 7
1
OPTO-COUPLER
Tr2 8
CIRCUIT DIAGRAM
2
5
PC
6
7
1 8
Feb.1999
MITSUBISHI HYBRID ICs
M57955L
HYBRID IC FOR DRIVING HIGH BETA TRANSISTOR MODULES
ABSOLUTE MAXIMUM RATINGS (Ta=25C, unless otherwise noted)
Symbol VCC VI IOH IOLP Viso Tj Topg Tstg Parameter Supply voltage Input voltage Output voltage Isolation voltage Junction temperature Operating temperature Storage temperature Conditions DC Ratings 12 -1 ~ 7 -0.3 1.3 2500 100 -20 ~ +70 -25 ~ +100 Unit V V A A Vrms C C C
Pulse width 10s, Freq. 2kHz, peak value Sinewave voltage 60Hz/min. Ta=25C
ELECTRICAL CHARACTERISTICS (Ta=25C, VCC=8V, unless otherwise noted)
Symbol IIH IOH IOLP PD tPLH tr tPHL tf VIN VCC Parameter "H" input current "H" output current "L" output peak current Internal power dissipation "L-H" propagation delay time "L-H" rise time "H-L" propagation delay time "H-L" fall time Supply voltage Recommended range Recommended range Test conditions VI=5V Rext1=36 Cext=47F, Rext2=0.2 IOH=-0.1A, IOLP=1A, f=2kHz, D.F.=50% Limits Min. - - - - - - - - 4.75 7 Typ. 10 -0.1 1 0.26 5 - 8 - 5 8 Max. - - - - 10 1 15 2 5.25 9 Unit mA A A W s s s s V V
Feb.1999
MITSUBISHI HYBRID ICs
M57955L
HYBRID IC FOR DRIVING HIGH BETA TRANSISTOR MODULES
PERFORMANCE CURVES
PROPAGATION DELAY TIME VS. INPUT SIGNAL VOLTAGE (TYPICAL) 14 VCC=8V Rext1=36, Rext2=0.2 load:QM50DY-HB f=2kHz, D.F.=50% tPHL 8 PROPAGATION DELAY TIME VS. AMBIENT TEMPERATURE (TYPICAL) 10 tPHL VCC=8V Rext1=36, Rext2=0.2 tPLH:0 4V tPHL:5 0V load:QM50DY-HB f=2kHz, D.F.=50% tPLH
PROPAGATION DELAY TIME "L-H" tPLH (s) PROPAGATION DELAY TIME "H-L" tPHL (s)
PROPAGATION DELAY TIME "L-H" tPLH (s) PROPAGATION DELAY TIME "H-L" tPHL (s)
12
8
6
4
4 tPLH 0 3 4 5 6 VI (V) 7
2
0
0
20
40
60
80
100
INPUT SIGNAL VOLTAGE
AMBIENT TEMPERATURE Ta (C)
"H" OUTPUT CURRENT VS. "H" LIMITING RESISTOR (TYPICAL) "H" OUTPUT PEAK CURRENT IOHP (mA) (-IB1) "L" OUTPUT PEAK CURRENT IOLP (A) (-IB2) 120 1.0
"L" OUTPUT CURRENT VS. "L" LIMITING RESISTOR (TYPICAL)
100
0.8
80
0.6
60 VCC=8V, VIN=5V 40 Rext2=0.2 load:QM50DY-HB Ta=25C 20 36 40 32
0.4 VCC=8V, VIN=5V Rext1=36 load:QM50DY-HB Ta=25C 0 0.2 0.4 0.6 0.8 0.9
0.2
44
48 50
0
"H" LIMITING RESISTOR Rext1 () INTERNAL POWER DISSIPATION VS. AMBIENT TEMPERATURE (MAXIMUM RATING) 1.0
"L" LIMITING RESISTOR Rext2 ()
INTERNAL POWER DISSIPATION PD (W)
0.5
0
0
20
40
60
80
100
AMBIENT TEMPERATURE Ta (C)
Feb.1999
MITSUBISHI HYBRID ICs
M57955L
HYBRID IC FOR DRIVING HIGH BETA TRANSISTOR MODULES
TEST CIRCUIT AND APPLICATION CIRCUIT EXAMPLE
+5V M57955L 1 2 5 7 6 8 Rext1 Rext2 R INPUT SINK 10mA + 10F + Cext IO
VIN
QM50DY-HB etc.
VCC=8V (typ)
V1 0
t
-IO 0 IOH t IOLP
Note: IOH and IOLP correspond to base forward current IB1 and base reverse current IB2 of the transistor modules to be driven respectively.
Feb.1999

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