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TEA1520T/N2,118 View Datasheet(PDF) - NXP Semiconductors.

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TEA1520T/N2,118
NXP
NXP Semiconductors. NXP
TEA1520T/N2,118 Datasheet PDF : 20 Pages
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NXP Semiconductors
TEA152x
SMPS ICs for low-power systems
10. Thermal characteristics
Table 5.
Symbol
Rth(j-a)
Thermal characteristics
Parameter
Conditions
thermal resistance from junction to ambient in free air
DIP8 package
SO14 package
Typ
[1]
100
91
Unit
K/W
K/W
[1] Thermal resistance Rth(j-a) can be lower when the GND pins are connected to sufficient copper area on the
printed-circuit board. See the TEA152x application note 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
Supply
ICC(oper)
ICC(startup)
ICC(ch)
VCC(startup)
VCC(stop)
Idrain
operating supply current
start-up supply current
charge supply current
start-up supply voltage
stop supply voltage
current on pin DRAIN
normal operation
start-up
Vdrain > 60 V
undervoltage lockout
Vdrain > 60 V
no auxiliary supply
-
1.3 1.9 mA
-
180 400 μA
6 4 3 mA
9
9.5 10 V
7.0 7.5 8.0 V
-
1.5 2
mA
with auxiliary
supply
-
30 125 μA
Pulse-width modulator
δmin
δmax
SOPS
minimum duty factor
maximum duty cycle
f = 100 kHz
-
0
-
%
-
75 -
%
Vdet(demag)
demagnetization detection
voltage
50 100 150 mV
tsup(xfmr_ring) transformer ringing
suppression time
start of 2nd stroke
1.0 1.5 2.0 μs
RC oscillator
VRC(min)
minimum voltage on pin RC
VRC(max)
maximum voltage on pin RC
tch(RC)
charge time on pin RC
fosc
oscillator frequency
Duty factor regulator: pin REG
60 75 90 mV
2.4 2.5 2.6 V
-
1
-
μs
10 100 200 kHz
VREG
Gv
Vclamp(REG)
voltage on pin REG
voltage gain
clamp voltage on pin REG
error amplifier
IREG = 6 mA
2.4 2.5 2.6 V
-
20 -
dB
-
-
7.5 V
TEA152X
Product data sheet
All information provided in this document is subject to legal disclaimers.
Rev. 04 — 14 September 2010
© NXP B.V. 2010. All rights reserved.
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