TEA1716T
NXP Semiconductors
Resonant power supply control IC with PFC
5. Block diagram
SNSBOOST SUPHV
24 12
SUPIC
6
SUPREG
9
2
SNSMAINS
14
SUPHS
+1.15 V
MAINS RESET,
UNDERVOLTAGE
SENSING
High-side driver
+10.9 V
SERIES
STABILIZER AND
SUPREG SENSING
13
15
LEVEL
SHIFTER
AND CLAMP
GATEHS
HB
+10.3 V
MAINS
COMPENSATION
HV START-UP
SOURCE
SUPPLY
CONTROL
SWITCH
CONTROL
Low-side driver
SUPREG
10
8
ON-TIMER
OFF-TIME LIMIT
FREQUENCY LIMIT
GATELS
PGND
ADAPTIVE
NON-OVERLAP
SENSING
HV START-UP
SELECTION
INTERNAL
SUPPLIES
+20 V
Error
amplifier
and clamp
BOOST
COMPENSATION
1
+2.5 V
SUPIC
START AND
UNDERVOLTAGE
SENSING
COMPPFC
CAPACITIVE
MODE
SENSING
+22/17 V
PFC driver
SUPREG
+15 V
SUPPLY MODULE
17
7
3
PFC
CONTROL
SNSCURHBC
GATEPFC
PGND
OVERCURRENT
REGULATION
SENSING
OVERCURRENT
PROTECTION
SENSING
+0.5 V
-0.5 V
+1.75 V
-1.75 V
BOOST
OVERVOLTAGE
SENSING
SNSAUXPFC
+2.63 V
-0.1 V
DEMAGNETIZING
SENSING
OUTPUT
PRESENT
SENSING
OUTPUT
OVERVOLTAGE
SENSING
BOOST
UNDERVOLTAGE
SENSING
+2.3 V
+3.5 V
+2.3 V
+1.6 V
VALLEY
SENSING
5
SNSOUT
4
20
BOOST
CHARGED
SENSING
SNSCURPFC
SNSBURST
BOOST SHORT
SENSING
BURST
STOP
BURST
SENSING
2.5 V
+0.4 V
3.5 V
+0.45 V
SOFT START
CONTROL
PFC CONTROLLER
+0.5 V
OVERCURRENT
SENSING
21
SOFT START
RESET
SNSFB
+3.0 V
HBC CONTROLLER
6.4 V
4.1 V
OPEN-LOOP
SENSING
FEEDBACK
INPUT
8.2 V
PROTECTION
AND RESTART
TIMER
FREQUENCY
CONTROL
23
RCPROT
TWO SPEED
SOFT START
SWEEP
+8.0 V
OVER-
TEMPERATURE
SENSING
+
POLARITY
INVERSION
+5.6 V
+3.2 V
+8.0 V
I-V
V-I
AND CLAMP
HIGH
FREQUENCY
SENSING
+2 V
+1 V
CONTROLLED
OSCILLATOR
ENABLE
SENSING
PFC/HBC
+1.83 V
R
fmax
TEA1716T
18
22
SSHBC/EN
19
SGND
CFMIN
aaa--000764
Fig 1. Block diagram of TEA1716
TEA1716T
All information provided in this document is subject to legal disclaimers.
© NXP B.V. 2012. All rights reserved.
Objective data sheet
Rev. 1 — 27 January 2012
4 of 46
ETC [ ETC ]
