TEA1622P_1 View Datasheet(PDF) - Philips Electronics
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TEA1622P_1 Datasheet PDF : 16 Pages
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Philips Semiconductors
TEA1622P
STARplugTM
10. Thermal characteristics
Table 5:
Symbol
Rth(j-a)
Thermal characteristics
Parameter
Conditions
thermal resistance from junction in free air
to ambient
Typ
[1] 100
Unit
K/W
[1] Thermal resistance Rth(j-a) can be lower when pin GND is connected to sufficient copper area on the
printed-circuit board. See the TEA152x application notes for details.
11. Characteristics
Table 6: Characteristics
Tamb = 25 °C; no overtemperature; all voltages are measured with respect to ground; currents are positive when flowing into
the IC; unless otherwise specified.
Symbol
Parameter
Conditions
Min Typ Max Unit
Supplies
Supply on pin VCC
VCC(start)
start voltage
VCC(stop)
stop voltage
ICC(operate) operating supply current
ICC(startup) start-up supply current
ICC(ch)
charging current
Supply on pin DRAIN
undervoltage lock-out
normal operation
start-up
VDRAIN > 60 V
VCC = 0 V
VCC = 8.5 V
9
9.5 10
V
7.0 7.5 8.0 V
-
1.3 1.9 mA
-
180 400 µA
−650 −520 −390 µA
−375 −275 −175 µA
IDRAIN
supply current drawn from pin DRAIN
Pulse width modulator mode
no auxiliary supply
with auxiliary supply;
VDRAIN > 60 V
-
0.5 -
mA
-
30
125 µA
δmin
minimum duty factor
δmax
maximum duty factor
Self oscillating power supply mode
fosc = 100 kHz
-
0
-
%
-
75
-
%
Vdemag
demagnetization recognition voltage
level
50
100 150 mV
tsuppr
time of suppression of transformer
ringing at start of secondary stroke
1.0 1.5 2.0 µs
Oscillator: pin RC
VRC(min)
minimum voltage of RC oscillator
setting
60
75
90
mV
VRC(max)
maximum voltage of RC oscillator
setting
2.4 2.5 2.6 V
tRC(ch)
RC charging time
fosc
oscillator frequency range
Duty factor regulator: pin REG
-
1
10
-
-
µs
200 kHz
VREG
input voltage on pin REG
2.4 2.5 2.6 V
9397 750 12578
Product data sheet
Rev. 01 — 17 March 2004
© Koninklijke Philips Electronics N.V. 2004. All rights reserved.
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