TK65920M Ver la hoja de datos (PDF) - Toko America Inc
Número de pieza
componentes Descripción
Fabricante
TK65920M Datasheet PDF : 20 Pages
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TK6592x
ABSOLUTE MAXIMUM RATINGS
VCC Pin .................................................................... 6.5 V
All Pins Except VCC and GND ............................... VCLAMP
Power Dissipation (Note 1) ................................ 600 mW
Storage Temperature Range ................... -55 to +150 °C
Operating Temperature Range ...................-30 to +80 °C
Junction Temperature ........................................... 150 °C
TK6592x ELECTRICAL CHARACTERISTICS
VCC = 3.6 V, TA = Tj = 25 °C, unless otherwise specified.
SYMBOL
PARAMETER
TEST CONDITIONS
MIN TYP MAX UNITS
V
Input Supply Range
CC
2.7
3.6
6
V
IQ
Quiescent Current
Current into pin 6
200
µA
IPEAK
Peak Current Threshold
44
52
60
mA
FLAMP
Lamp Frequency
See Table 1
Hz
F
BOOST
Boost Frequency
See Table 2
kHz
VCLAMP
Boost Clamp Voltage
Force 100 µA into HV pin
90
105 120
V
D(MAX)
Maximum Duty Cycle
88
92
96
%
VOUT
Peak to Peak Lamp Voltage
(Note 3)
125 140 155
V
I
CONV
Converter Supply Current
(Notes 2, 3)
See Table 3
mA
Note 1: Power dissipation is 600 mW when mounted as recommended (200 mW In Free Air). Derate at 4.8 mW/°C for operation above 25 °C.
Note 2: Converter supply current is dependent upon the DC resistance of inductor L1. Lower DC resistances will result in lower supply currents.
Note 3: When using test circuit below.
Gen. Note: Refer to “INDUCTOR VALUE SELECTION” and “INDUCTOR TYPE SELECTION” of Design Considerations Section for choosing
inductor.
TEST CIRCUIT
CEL
12 nF
EL +
HV
EL -
C1
D1
47 nF
VCC
GND
IND
ICONV
VCC
L1
680 µH
Note: L1 = Toko Low Profile D52FU Series: 875FU-681 M
D1 = DIODES INC. DL4148
C1 = AVX 12061C473KAT2A
Page 2
May 2000 TOKO, Inc.
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