TEA1750 NXP Semiconductors, TEA1750 Datasheet - Page 3

• Manufacturer Part Number: TEA1750
• Description: GreenChip III SMPS control IC
• Manufacturer: NXP Semiconductors

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NXP Semiconductors
5. Block diagram
TEA1750_2
Product data sheet
Fig 1.
PFCSENSE
VINSENSE
PFCCOMP
VOSENSE
PFCAUX
Block diagram
9
7
6
11
8
2.50 V
60 A
1.12 V
500 mV
OCP
SOFT START
VoBURST HIGH
VoBURST LOW
VoSTART FB
VoSHORT
SOFT STOP
VoOVP
LOW VIN
LATCH
RESET
DETECT
2.7 V
VALLEY
BLANK
3.5 V
100 mV
TIMER 50 s
TIMER 4 s
LOWVIN
PFCGATE
START STOP PFC
VoBURST LOW
VoBURST HIGH
PFC DRIVER
ENABLE PFC
PFC DRIVER
3.7 V
PFC GATE
1.25 V
MAX
PFC
PROT
ZCS
PROT
PFC
ENABLE
PFC
Rev. 02 — 15 December 2008
LATCH RESET
PROT
LOW POWER
VoSTART FB
VCC GOOD
PFCDRIVER
EXT PROT
EXT PROT
EXT PROT
TON MAX
VoSHORT
TIMEOUT
CHANGE
V START
V UVLO
V UVLO
OSC
PFC
OvpFB
PROT
OTP
12
OTP
DRV
16
R
S
HV
S
S
S
R
S
S
S
R
Q
PROTECTION
PROTECTION
CONTROL
CONTROL
CHARGE
LATCHED
RESTART
SMPS
SAFE
V
CC
DETECT
VALLEY
FBDRIVER
1
TON MAX
Q
13
DRV
R
S
STARTFB
START STOP
PFC
INTERNAL
SUPPLY
V
V
V
CHARGE
CC
START
UVLO
FB DRIVER
FB GATE
GOOD
OSC
PFC
PROT
ENABLEFB
TEMP
PROT
OvpFB
DRIVER
ENABLE
START
OTP
EXT PROT
GreenChip III SMPS control IC
POWER
FB
FB
FREQ
FB
RED.
TIME
LOW
OUT
COUNTER
ZCS
BLANK
START
SOFT
GND
2
2.5 V
FB GATE
80 A
1.25 V
OVP
60 A
3.5 V
TEA1750
80 mV
© NXP B.V. 2008. All rights reserved.
30 A
10
5
3
4
LATCH
FBSENSE
FBAUX
FBCTRL
014aaa055
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