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TEA1755T 데이터시트(PDF) 3 Page - NXP Semiconductors

부품명 TEA1755T
상세설명  HV start-up DCM/QR flyback controller with integrated DCM/QR PFC controller
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제조업체  PHILIPS [NXP Semiconductors]
홈페이지  http://www.nxp.com
Logo PHILIPS - NXP Semiconductors

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TEA1755T
All information provided in this document is subject to legal disclaimers.
© NXP B.V. 2012. All rights reserved.
Product data sheet
Rev. 1 — 25 October 2012
3 of 35
NXP Semiconductors
TEA1755T
HV start-up DCM/QR flyback and DCM/QR PFC controllers
3.
Applications
The device can be used in all applications requiring an efficient and cost-effective
power supply solution for up to 250 W. Notebook adapters in particular benefit from the
high level of integration
4.
Ordering information
5.
Block diagram
Table 1.
Ordering information
Type number
Package
Name
Description
Version
TEA1755T/1
SO16
plastic small outline package; 16 leads; body width 3.9 mm
SOT109-1
Fig 1.
TEA1755T block diagram
TIMER 48 μs
TIMER 4.2 μs
PFC
protection
Vo OVP
Vth(VOSENSE)
ton
REDUCTION
NEAR OVP
OCP
PFC driver
enable PFC
start stop PFC
495 mV
PFC gate
VALLEY
DETECT
BLANK
3.32 V
2.5 V
1.92 V
MAXIMUM
external protection
protection
external protection
Vstartup
CHARGE
CONTROL
SAFE
RESTART
PROTECTION
start flyback
start stop PFC
protection
VCC good
charge
PFC
protection protection
latch
reset
enable PFC
R
S
Q
low power delay
burst mode
Vth(burst)
PFC clamp
SMPS
CONTROL
VCC good
START
SOFT
start flyback
enable flyback
enable flyback
BLANK
Q
R
S
FLYBACK
OSCILLATOR
ton(max)
frequency
reduction
external
protection
time-out
burst mode
flyback driver
flyback gate
12
13
PFC driver
PFC gate
VINSENSE
PFCCOMP
VOSENSE
PFCSENSE
PFCAUX
OTP
charge
VALLEY
DETECT
OTP
internal supply
ZERO CURRENT
SIGNAL
ZERO
CURRENT
SIGNAL
flyback
gate
FBAUX
FBSENSE
COUNTER
OVP
OVP
flyback
3.5 V
7
6
11
8
9
HV
VCC
16
1
GND
5
3
10
4
FBCTRL
LATCH
90 mV
PFCDRIVER
FBDRIVER
Vstartup
Vth(UVLO)
Vth(UVLO)
aaa-002622
protection
PFC(swon)
PFC(swoff)
CONTROL
30.5 μA
60 μA
29 μA
3.75 V
clamp
OCP
frequency
reduction
burst mode
494 V
Vth(burst)
flyback driver
5.5 V
7.0 V
TEMPERATURE
-90 mV
8.1 μA
dual boost
dual
boost
dual
boost
low Vin
power
down
ton max
power down
power down
OPP
OPP
OPP
MINIMUM
2
low power
delay
low power
PFCTIMER
14
DELAY
60 μA
2.1 μA
OVP flyback
external protection
OTP
latch reset
S
S
S
R
LATCHED
PROTECTION
PFC clamp
clamp
SOFT START
SOFT STOP
Ven(PFC)FBCTRL
low power
delay
time-out
R
S
S
S
Vth(VOSENSE)
low Vin
VUVLO
driver
driver
PFC
OSCILLATOR
low power
Ven(PFC)FBCTRL


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