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GL494 Fiches technique(PDF) 5 Page - Hynix Semiconductor

No de pièce GL494
Description  PWM CONTROL CIRCUIT
PDF  7 Pages
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Fabricant  HYNIX [Hynix Semiconductor]
Site Internet  http://www.skhynix.com/kor/main.do
Logo HYNIX - Hynix Semiconductor

GL494 Fiches technique(HTML) 5 Page - Hynix Semiconductor

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



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