TK83854 查看數據表（PDF） - Toko America Inc
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TK83854 Datasheet PDF : 12 Pages
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PKLMT
NC
CAOUT
IAC
MULTOUT
NC
VAOUT
VRMS
10 k
10 k
10 k
10 nF
10 k 100
10 k
10 nF
TK83854
TEST CIRCUIT
0.1 nF
GND
PKLMT
CAOUT
ISENSE
MULT
IAC
B
A
VAOUT
7.5 V
IM = (AB) / C
C
V RMS
GTDRV
VCC
CT
SS
RSET
VSENSE
ENA
Vref
0.39 nF
1.0 nF
1.0 nF
0.01 nF
8.2 k
10 k
15 k
100
10 µF
NC
VCC
ENA
NC
0.1 µF
TYPICAL PERFORMANCE CHARACTERISTICS
TA = TJ = 25 °C
CURRENT AMPLIFIER GAIN AND
PHASE vs. FREQUENCY
120
100
PHASE MARGIN
VOLTAGE AMPLIFIER GAIN AND
PHASE vs. FREQUENCY
120
100
PHASE MARGIN
GATE DRIVE MAXIMUM DUTY
CYCLE vs. RSET
100
95
80
80
90
60
60
85
40
40
80
20
20
OPEN LOOP GAIN
0
OPEN LOOP GAIN
0
75
-20
-20
70
0.1 1 10 100 1000 10000
0.1 1 10 100 1000 10000
0
FREQUENCY (kHz)
FREQUENCY (kHz)
10
100
RSET (kΩ)
MULTIPLIER OUTPUT vs.
VOLTAGE ON MULTIPLIER
600
VAOUT = 5 V
V(rms) = 2 V
MULTOUT = 0 V
400
MULTOUT = 1 V
MULTOUT = 2 V
200
MULTOUT = 3 V
0
0
200 400 600 800
IAC (µA)
1000
OSCILLATOR FREQUENCY VS.
RSET AND CT
100 pF
100
200 pF
500 pF
10
1 nF
2 nF
10 nF 5 nF 3 nF
1
1
10
100
RSET (kΩ)
GATE DRIVE RISE AND FALL TIMES
vs. LOAD CAPACITANCE
700
500
300
FALL TIME
RISE TIME
100
0 .01 .02 .03 .04 .05
CLOAD (µF)
January 1999 TOKO, Inc.
Page 5
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