Service manual

34
32JW-73E
CHARACTERISTICS
T
amb
=25°C; V
CC
= 15 V; all voltages are measured with respect to ground (pin 2); currents are positive when flowing
into the IC; unless otherwise specified.
SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT
Start-up current source (pin 8)
I
i(DRAIN)
supply current drawn from drain pin V
CC
=0V; V
DRAIN
> 100 V 1.0 1.2 1.4 mA
with auxiliary supply;
V
DRAIN
> 100 V
− 100 300 µA
BV
DSS
breakdown voltage 650 −−V
M-level mains-dependent operation-enabling level 60 − 100 V
V
CC
management (pin 1)
V
CC(start)
start-up voltage on V
CC
10.3 11 11.7 V
V
CC(UVLO)
under voltage lock-out on V
CC
8.1 8.7 9.3 V
V
CC(hys)
hysteresis voltage on V
CC
V
CC(start)
− V
CC(UVLO)
2.0 2.3 2.6 V
I
i(VCC)H
pin V
CC
charging current V
DRAIN
> 100 V; V
CC
<3V −1.2 −1 −0.8 mA
I
i(VCC)L
pin V
CC
charging current V
DRAIN
> 100 V;
3V<V
CC
<V
CC(UVLO)
−1.2 −0.75 −0.45 mA
I
VCC(restart)
pin V
CC
restart current V
DRAIN
> 100 V;
V
CC(UVLO)
<V
CC
<V
CC(start)
−650 −550 −450 µA
I
CC(operate)
supply current under normal operation no load on pin DRIVER 1.1 1.3 1.5 mA
Demagnetization management (pin 4)
V
DEM
demagnetization comparator threshold
voltage on pin DEM
50 100 150 mV
I
DEM
pin DEM current V
DEM
=50mV −50
(1)
− 0nA
V
clamp(DEM)(neg)
negative clamp voltage on pin DEM at I
DEM
= −150 µA −0.5 −0.25 −0.05 V
V
clamp(DEM)(pos)
positive clamp voltage on pin DEM at I
DEM
= 250 µA 0.5 0.7 0.9 V
t
suppr
suppression of transformer ringing at start
of secondary stroke
1.1 1.5 1.9 µs
Pulse width modulator
t
on(min)
minimum on-time − t
leb
− ns
t
on(max)
maximum on-time latched 40 50 60 µs
Oscillator
f
oscL
oscillator low frequency (fixed frequency) V
CTRL
> 1.5 V 5 6.5 8 kHz
f
oscH
oscillator high frequency (fixed frequency) V
CTRL
< 1 V 145 175 205 kHz
V
vco(start)
peak voltage at pin I
sense
, where
frequency reduction starts
see Fig.6 − 75 − mV
V
vco(max)
peak voltage at pin I
sense
, where the
frequency is equal to f
oscL
− 50 − mV
Duty cycle control (pin 3)
V
CTRL(min)
min. voltage on CTRL (max. duty cycle) − 1.0 − V
V
CTRL(max)
max. voltage on CTRL (min. duty cycle) − 1.5 − V
TEA1507 (IC701)