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TEA1522T データシート(PDF) 10 Page - NXP Semiconductors

部品番号 TEA1522T
部品情報  SMPS ICs for low-power systems
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メーカー  NXP [NXP Semiconductors]
ホームページ  http://www.nxp.com
Logo NXP - NXP Semiconductors

TEA1522T データシート(HTML) 10 Page - NXP Semiconductors

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TEA152X
All information provided in this document is subject to legal disclaimers.
© NXP B.V. 2010. All rights reserved.
Product data sheet
Rev. 04 — 14 September 2010
10 of 20
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 note 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 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)
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(startup)
start-up supply 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
δ
min
minimum duty factor
-
0
-
%
δ
max
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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