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