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PDF TEA1713T Data sheet ( Hoja de datos )
| Número de pieza | TEA1713T | |
| Descripción | Resonant power supply control IC | |
| Fabricantes | NXP Semiconductors | |
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TEA1713T
Resonant power supply control IC with PFC
Rev. 2 — 9 February 2011
Product data sheet
1. General description
The TEA1713 integrates a Power Factor Corrector (PFC) controller and a controller for a
Half-Bridge resonant Converter (HBC) in a multi-chip IC. It provides the drive function for
the discrete MOSFET in an up-converter and for the two discrete power MOSFETs in a
resonant half-bridge configuration.
The efficient operation of the PFC is achieved by implementing functions such as
quasi-resonant operation at high power levels and quasi-resonant operation with valley
skipping at lower power levels. OverCurrent Protection (OCP), OverVoltage Protection
(OVP), and demagnetization sensing ensure safe operation under all conditions.
The HBC module is a is a high-voltage controller for a zero-voltage switching LLC
resonant converter. It contains a high-voltage level shift circuit and several protection
circuits including OCP, open-loop protection, capacitive mode protection and a general
purpose latched protection input.
The high-voltage chip is fabricated using a proprietary high-voltage Bipolar-CMOS-DMOS
power logic process that enables efficient direct start-up from the rectified universal mains
voltage. The low-voltage Silicon On Insulator (SOI) chip is used for accurate, high-speed
protection functions and control.
The topology of a PFC circuit and a resonant converter controlled by the TEA1713 is very
flexible, enabling it to be used in a broad range of applications with a wide mains voltage
range. Combining PFC and HBC controllers in a single IC makes the TEA1713 ideal for
controlling power supplies in LCD and plasma televisions.
Highly efficient and reliable power supplies providing over 100 W can be designed easily
using the TEA1713, with a minimum of external components.
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1 page  
NXP Semiconductors
TEA1713T
Resonant power supply control IC with PFC
Table 2. Pin description …continued
Symbol
Pin Description
HB 15 reference for high-side driver; input for half-bridge slope detection;
externally connected to half-bridge node HB between HBC MOSFETs (see
Figure 19)
n.c. 16 not connected; high-voltage spacer
SNSCURHBC 17
sense input for momentary HBC current; externally connected to resonant
current sense resistor
SGND
18 signal ground; reference (ground) for IC.
CFMIN
19 minimum frequency setting for HBC; externally connected to capacitor
RFMAX
20 maximum frequency setting for HBC; externally connected to resistor
SNSFB
21 sense input for output voltage regulation feedback; externally connected to
opto-coupler
SSHBC/EN 22 combined soft start timing of HBC and IC enable input; enabling of PFC or
PFC and HBC controllers; externally connected to soft start capacitor and
enable pull-down signal
RCPROT
23 protection timer setting for time-out and restart; externally connected to
resistor and capacitor
SNSBOOST 24
sense input for boost voltage; externally connected to resistive divided
boost voltage
7. Functional description
7.1 Overview of IC modules
The functionality of the TEA1713 can be grouped as follows:
• Supply module:
Supply management for the IC; includes the restart and (latched) shut-down states
• Protection and restart timer:
Externally adjustable timer used for delayed protection and restart timing
• Enable input:
Control input for enabling and disabling the controllers; very low current consumption
when disabled
• PFC controller:
Controls and protects the power factor converter; generates a 400 V (DC) boost
voltage from the rectified AC mains input with a high power factor
• HBC controller:
Controls and protects the resonant converter; generates a regulated (mains isolated)
output voltage from the 400 V (DC) boost voltage
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Figure 1 shows the block diagram of the TEA1713. A typical application is illustrated in
Figure 19.
TEA1713T
Product data sheet
All information provided in this document is subject to legal disclaimers.
Rev. 2 — 9 February 2011
© NXP B.V. 2011. All rights reserved.
5 of 47
5 Page 
NXP Semiconductors
TEA1713T
Resonant power supply control IC with PFC
Enable supply
signal (0 to > 2 V)
Disable supply
SSHBC/EN
Css(HBC)
lpu(EN)
Enable detection
Vpu(EN)
Ven(IC)(EN)
Ven(PFC)(EN)
EnableIc
EnableIcPfc
To soft start
circuit
Fig 4. Circuit configuration around pin SSHBC/EN
TEA1713
014aaa852
7.5 IC protection
7.5.1 IC restart and shut-down
In addition to the protection functions that influence the operation of the PFC and HBC
controllers, a number of protection functions are provided that disable both controllers.
See the protection overview in Section 7.9 for details on which protections trigger a restart
or a protection shut-down.
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• Restart
When the TEA1713 enters the Restart state, the PFC and HBC controllers are
switched off. After a period defined by the Restart timer, the IC automatically restarts
following the normal start-up cycle.
• Protection shut-down
When the TEA1713 enters the Protection shut-down state, the PFC and HBC
controllers are switched off. The Protection shut-down state is latched, so the IC will
not start up again automatically. It can be restarted by resetting the Protection
shut-down state in one of the following ways:
– by lowering VSUPIC and VSUPHV below their respective reset levels, Vrst(SUPIC) and
Vrst(SUPHV)
– via a fast shut-down reset (see Section 7.5.3).
– via the enable pin (see Section 7.4)
• Thermal hold
In the Thermal hold state, the PFC and HBC controllers are switched off. The Thermal
hold state remains active until the IC junction temperature drops to about 10 °C below
Totp (see Section 7.5.6).
TEA1713T
Product data sheet
All information provided in this document is subject to legal disclaimers.
Rev. 2 — 9 February 2011
© NXP B.V. 2011. All rights reserved.
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