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TEA152X Datenblatt(PDF) 10 Page - NXP Semiconductors

Teilenummer TEA152X
Bauteilbeschribung  SMPS ICs for low-power systems
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Hersteller  NXP [NXP Semiconductors]
Direct Link  http://www.nxp.com
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TEA152X Datenblatt(HTML) 10 Page - NXP Semiconductors

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TEA152X_3
© NXP B.V. 2009. All rights reserved.
Product data sheet
Rev. 03 — 23 March 2009
10 of 17
NXP Semiconductors
TEA152x
SMPS ICs for low-power systems
10. Thermal characteristics
[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 notes for details.
11. Characteristics
Table 5.
Thermal characteristics
Symbol
Parameter
Conditions
Typ
Unit
Rth(j-a)
thermal resistance from junction to ambient in free air
[1]
DIP8 package
100
K/W
SO14 package
91
K/W
Table 6.
Characteristics
Tamb =25 °C; no over temperature; 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)
operating supply current
normal operation
-
1.3
1.9
mA
ICC(startup)
start-up supply current
start-up
-
180
400
µA
ICC(ch)
charge supply current
Vdrain >60V
−6
−4
−3mA
VCC(start)
start voltage
9
9.5
10
V
VCC(stop)
stop supply voltage
undervoltage lockout
7.0
7.5
8.0
V
Idrain
current on pin DRAIN
Vdrain >60V
no auxiliary supply
-
1.5
2
mA
with auxiliary
supply
-
30
125
µA
Pulse width modulator
δmin
minimum duty factor
-
0
-
%
δmax
maximum duty cycle
f = 100 kHz
-
75
-
%
SOPS
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
60
75
90
mV
VRC(max)
maximum voltage on pin RC
2.4
2.5
2.6
V
tch(RC)
charge time on pin RC
-
1
-
µs
fosc
oscillator frequency
10
100
200
kHz
Duty factor regulator: pin REG
VREG
voltage on pin REG
2.4
2.5
2.6
V
Gv
voltage gain
error amplifier
-
20
-
dB
Vclamp(REG)
clamp voltage on pin REG
IREG = 6 mA
-
-
7.5
V


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