32Jw-73E - Sharp 32JW-73E Service Manual

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32JW-73E

TEA1507 (IC701)
CHARACTERISTICS
= 25 °C; V
T
= 15 V; all voltages are measured with respect to ground (pin 2); currents are positive when flowing
amb
CC
into the IC; unless otherwise specified.
SYMBOL
Start-up current source (pin 8)
I
supply current drawn from drain pin
i(DRAIN)
BV
breakdown voltage
DSS
M-level
mains-dependent operation-enabling level
V
management (pin 1)
CC
V
start-up voltage on V
CC(start)
V
under voltage lock-out on V
CC(UVLO)
V
hysteresis voltage on V
CC(hys)
I
pin V
i(VCC)H
CC
I
pin V
i(VCC)L
CC
I
pin V
VCC(restart)
CC
I
supply current under normal operation
CC(operate)
Demagnetization management (pin 4)
V
demagnetization comparator threshold
DEM
voltage on pin DEM
I
pin DEM current
DEM
V
negative clamp voltage on pin DEM
clamp(DEM)(neg)
V
positive clamp voltage on pin DEM
clamp(DEM)(pos)
t
suppression of transformer ringing at start
suppr
of secondary stroke
Pulse width modulator
t
minimum on-time
on(min)
t
maximum on-time
on(max)
Oscillator
f
oscillator low frequency (fixed frequency)
oscL
f
oscillator high frequency (fixed frequency) V
oscH
V
peak voltage at pin I
vco(start)
frequency reduction starts
V
peak voltage at pin I
vco(max)
frequency is equal to f
Duty cycle control (pin 3)
V
min. voltage on CTRL (max. duty cycle)
CTRL(min)
V
max. voltage on CTRL (min. duty cycle)
CTRL(max)
PARAMETER
CC
CC
CC
charging current
charging current
restart current
, where
sense
, where the
sense
oscL
CONDITIONS
V
= 0 V; V
> 100 V
CC
DRAIN
with auxiliary supply;
V
> 100 V
DRAIN
− V
V
CC(start)
CC(UVLO)
V
> 100 V; V
< 3V
DRAIN
CC
V
> 100 V;
DRAIN
3 V < V
< V
CC
CC(UVLO)
V
> 100 V;
DRAIN
V
< V
< V
CC(UVLO)
CC
CC(start)
no load on pin DRIVER
V
= 50 mV
DEM
= −150 µA
at I
DEM
= 250 µA
at I
DEM
latched
V
> 1.5 V
CTRL
< 1 V
CTRL
see Fig.6
34
MIN.
TYP. MAX. UNIT
1.0
1.2
1.4
mA
µA
100
300
650
V
60
100
V
10.3
11
11.7
V
8.1
8.7
9.3
V
2.0
2.3
2.6
V
−1.2
−1
−0.8
mA
−1.2
−0.75 −0.45 mA
−650
−550
−450 µA
1.1
1.3
1.5
mA
50
100
150
mV
−50
(1)
0
nA
−0.5
−0.25 −0.05 V
0.5
0.7
0.9
V
µs
1.1
1.5
1.9
t
ns
leb
µs
40
50
60
5
6.5
8
kHz
145
175
205
kHz
75
mV
50
mV
1.0
V
1.5
V

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