TEA1751LT/N1 NXP Semiconductors, TEA1751LT/N1 Datasheet - Page 3

• Manufacturer Part Number: TEA1751LT/N1
• Description: AC-DC, PFC, FLYBACK, CNTRL, 16SOIC
• Manufacturer: NXP Semiconductors

Specifications of TEA1751LT/N1

• Input Voltage: 276V
• Output Current: 1.2A
• Output Voltage: 11V
• No. Of Outputs: 2
• Power Dissipation Pd: 600mW
• Voltage Regulator Case Style: SOIC
• No. Of Pins: 16
• Operating Temperature Range: -40°C To
• Supply Voltage Range: 21V To 23V
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

NXP Semiconductors
5. Block diagram
TEA1751T_LT_2
Product data sheet
Fig 1.
PFCSENSE
VINSENSE
PFCCOMP
VOSENSE
Remark:
For the TEA1751L the time-out is latched.
For the TEA1751 the time-out is safe restart.
Block diagram
PFCAUX
9
11
8
7
6
2.50 V
1.12 V
BOOST
500 mV
60 μA
15 μA
DETECT
VALLEY
SOFT START
VoSTART FB
VoSHORT
VoOVP
OCP
LOW
VIN
BOOST
LATCH
RESET
BLANK
100 mV
2.7 V
3.5 V
LOW
POWER
TIMER 50 μs
TIMER 4 μs
LOW VIN
PFCGATE
ENABLE PFC
START STOP PFC
PFC DRIVER
PFC DRIVER
MAX
3.7 V
PFC GATE
ENABLE PFC
PFC PROT
PFC
PROT
ZCS
1.25 V
Rev. 02 — 23 December 2009
PROT
CHARGE
LATCH RESET
LOW POWER
VoSTART FB
PFCDRIVER
VCC GOOD
OTP
EXT PROT
EXT PROT
EXT PROT
VoSHORT
TIMEOUT
TON MAX
TIMEOUT
V
OSC
th(UVLO)
PFC
V
OvpFB
V
PROT
startup
12
UVLO
OTP
16
DRV
HV
R
S
S
S
S (TEA1751 only)
S
S
R
S (TEA1751L only)
S
R
Q
PROTECTION
V
PROTECTION
CC
CONTROL
CONTROL
LATCHED
RESTART
CHARGE
1
SMPS
SAFE
TON MAX
FBDRIVER
13
Q
INTERNAL
SUPPLY
V
V
TEA1751T; TEA1751LT
startup
th(UVLO)
DRV
R
S
Freq. Red.
STARTFB
START STOP
PFC
VCC GOOD
CHARGE
FB DRIVER
FB GATE
OSC
DETECT
VALLEY
FB
TEMP
PROT
PROT
ENABLE
FB
OTP
OvpFB
DRIVER
START FB
ENABLE FB
EXT PROT
OPP
POWER
GreenChip III SMPS control IC
FB
TIME
LOW
Red.
OUT
Freq
ZCS
COUNTER
MIN
BLANK
START
OPP
SOFT
2.5 V
2
GND
FB GATE
80 μA
OCP
1.25 V
OVP
60 μA
3.5 V
OPP
80 mV
30 μA
© NXP B.V. 2009. All rights reserved.
10
5
3
4
014aaa299
LATCH
FBCTRL
FBSENSE
FBAUX
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