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TEA1723DT Arkusz danych(PDF) 8 Page - NXP Semiconductors

Numer części TEA1723DT
Szczegółowy opis  HV start-up flyback controller with integrated MOSFET for 11 W applications, 1270 Hz burst frequency
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Strona internetowa  http://www.nxp.com
Logo PHILIPS - NXP Semiconductors

TEA1723DT Arkusz danych(HTML) 8 Page - NXP Semiconductors

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TEA1723DT
All information provided in this document is subject to legal disclaimers.
© NXP B.V. 2012. All rights reserved.
Product data sheet
Rev. 2.1 — 7 June 2012
8 of 14
NXP Semiconductors
TEA1723DT
HV start-up flyback controller with integrated MOSFET for 11 W
8.
Characteristics
Table 5.
Characteristics
VCC = 20 V; VFB = 0 V; Rsource = 0.75 Ω; Tj-switch = 25 °C; Tj-controller = 25 °C; all voltages referenced to GND,
positive currents flow into the IC, unless otherwise specified.
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
Supply (Pin: VCC)
ICC(startup)0V
start-up supply current
VCC = 0 V
-1.6
-1.2
-0.8
mA
ICC(startup)17V
start-up supply current
VCC = VCC(startup)
-1.6
-0.7
-0.2
mA
ICC(energysave)
supply current in
energy save
VFB = 2.8 V, non-switching
90
130
170
µA
ICC(50kHz)
supply current at
50 kHz
in CC mode
530
750
970
µA
VCC(startup)
start-up supply voltage
15
17
19
V
VCC(stop)
stop supply voltage
undervoltage lockout of IC
7.5
8.5
9.5
V
Totp
overtemperature
protection threshold
temperature on
controller die
-
150
-
°C
Totp(hys)
overtemperature
protection temperature
hysteresis
-50
-
°C
Feedback (Pin: FB)
Vth(ovp)fbck
feedback overvoltage
protection threshold
voltage
3.1
3.2
3.3
V
Vref(fbck)
feedback reference
voltage
in CV ode
2.5
2.55
2.6
V
Vth(fbck)CV
constant voltage mode
feedback threshold
voltage
in burst mode operation
2.35
2.4
2.45
V
Vth(det)demag(fb)
demagnetization
detection voltage level
on FB pin
-50
-mV
Oscillator (Pins: DRAIN and SOURCE)
fburst
burst frequency
burst frequency in CVB mode, without
jitter
1145
1270
1395
Hz
fjit/fsw
jitter frequency to
switching frequency
ratio
in all operation modes except in CVB
mode
579%
fosc-high
oscillator frequency
High
maximum switching frequency in CV
and CC mode, without jitter
48
50.5
53
kHz
fosc-low
oscillator frequency
Low
minimum switching frequency in CV and
CC mode, without jitter. Switching
frequency in CVB mode
21
22.5
24
kHz
fsweep
jitter sweep frequency
-
200
-
Hz
δmax
maximum duty cycle
72
75
78
%
Power switch (Pin: DRAIN)
Idrain(off)
off-state drain current
Vdrain = 325 V
-
1
-
µA


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