GL494 データシートの表示（PDF） - Hynix Semiconductor
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GL494 Datasheet PDF : 7 Pages
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GL494
Parameter Measurement Information
1.Dead time and Feedback Control
Vcc=15V
TEST
DEAD TIME (4)
(8) C1
INPUTS
12kΩ FEEDBACK (3)
Re (6)
(9) E1
Cr (5)
(11) C2
0.01µF (+) (16) ERROR (12) E2
(-) (15) AMP
(+) (1) ERROR
50kΩ
(-) (2) AMP
OUTPUT
(14) REF
CONTROL GND (7) OUT
(13)
TEST CIRCUIT
150Ω
2W
150Ω
2W
OUTPUT 1
VOLTAGE
AT C1
VOLTAGE
AT C2
OUTPUT 2
VOLTAGE
AT CT
THRESHOLD VOLTAGE
DEAD-TIME
CONTROL
INTPUT
0V
THRESHOLD VOLTAGE
Vcc
0
Vcc
0
FEEDBACK 0.7V
0%
DUTY
MAX
MAX
0%
CYCLE
VOLTAGE WAVEFORMS
2. Error Amplifier Characteristics
V1
VREF
ERROR AMPLIFIER
+ UNDER TEST
FEEDBACK
TERMINAL
–
+
– OTHER
ERROR
AMPLIFIER
3. Common-Emitter Configuration
(EACH OUTPUT
CIRCUIT)
15V
68Ω
2W
OUTPUT
90%
90%
CL=15pF
(INCLUDES PROBE AND
JIG CAPACITANCE)
10%
tr
10%
tf
TEST CIRCUIT
OUTPUT VOLTAGE WAVEFORM
5
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