UM11062
TEA1999DB1504 synchronous rectifier controller demo board
Rev. 1.1 — 20 February 2018
User manual
Document information
Information
Keywords
Abstract
Content
TEA1999DB1504, TEA1999TK, flyback converter, Synchronous Rectifier
(SR) driver, HVSON8, high efficiency, power supply, demo board
This user manual describes the TEA1999DB1504 demo board. The
TEA1999DB1504 demo board can be connected to a flyback converter.
The TEA1999DB1504 demo board contains a TEA1999TK SR controller in a
HVSON-8 package.
Additionally, the TEA1999DB1504 demo board contains two possible options
to place power MOSFETs. It replaces the secondary rectification part of the
flyback converter.
NXP Semiconductors
TEA1999DB1504 synchronous rectifier controller demo board
Revision history
Rev
v.1.1
Modifications:
v.1
20171201
Date
20180220
Description
updated issue
•
Section 5
"Board photographs" has been updated.
first issue
UM11062
UM11062
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© NXP B.V. 2018. All rights reserved.
User manual
Rev. 1.1 — 20 February 2018
2 / 13
NXP Semiconductors
TEA1999DB1504 synchronous rectifier controller demo board
UM11062
1
Introduction
The non-insulated high voltages that are present when operating this product,
constitute a risk of electric shock, personal injury, death and/or ignition of fire.
This product is intended for evaluation purposes only. It shall be operated in a
designated test area by personnel qualified according to local requirements and
labor laws to work with non-insulated mains voltages and high-voltage circuits. This
product shall never be operated unattended.
Warning
This document describes the TEA1999DB1504 demo board. A functional description
is provided, including instructions about how to connect the board, for the best results
and performance. The TEA1999DB1504 demo board contains the secondary part of a
single output flyback converter, excluding the output capacitors and the feedback control
hardware. To use the TEA1999DB1504 demo board correctly, a flyback converter board
in which the demo board can replace the secondary rectifier part is required.
2
Safety warning
The board application is AC mains voltage powered. Avoid touching the board while
it is connected to the mains voltage and when it is in operation. An isolated housing is
obligatory when used in uncontrolled, non-laboratory environments. Galvanic isolation
from the mains phase using a fixed or variable transformer is always recommended.
Figure 1
shows the symbols on how to recognize these devices.
019aab173
019aab174
a. Isolated
Figure 1. Isolation symbols
b. Not isolated
3
Specifications
Table 1. TEA1999DB1504 specifications
Symbol
V
XV
V
DRAIN
V
SOURCE
P
i(noload)
Parameter
voltage on pin XV
voltage on pin DRAIN
voltage on pin SOURCE
no-load input power
1 mW to 1.5 mW
Value
−0.4 V to +12 V
−0.4 V to +26 V
−0.8 V to +60 V
−0.8 V to +100 V
Conditions
MOSFET = 60 V
MOSFET = 100 V
MOSFET = 60 V
MOSFET = 100 V
−0.4 V to +0.4 V
V
XV
= 5 V
UM11062
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© NXP B.V. 2018. All rights reserved.
User manual
Rev. 1.1 — 20 February 2018
3 / 13
NXP Semiconductors
TEA1999DB1504 synchronous rectifier controller demo board
UM11062
4
TEA1999TK SR controller
The TEA1999TK is a dedicated controller IC for synchronous rectification on the
secondary side of flyback converters. It incorporates the sensing stage and driver stages
for driving the SR MOSFET. The SR MOSFET rectifies the output of the secondary
transformer winding.
The TEA1999TK can generate its own supply voltage for battery charging applications
with low output voltage or for applications with high-side rectification.
The TEA1999TK can be used in all power supplies that require a high efficiency, like:
•
Chargers
•
Adapters
•
Flyback power supplies with very low and/or variable output voltages
4.1 Features
•
•
•
•
•
•
•
•
•
Operates in an output voltage range between 26 V and 0 V
Drain sense pin capable of handling input voltages up to 120 V
Self-supply function
Operates with standard and logic level SR MOSFETs
Supports USB BC, QuickCharge, and smart charging applications
Adaptive gate drive for fast turn-off at the end of conduction
Under Voltage Lockout (UVLO) with active gate pull-down
Blanking input for low and high switching frequency
Enable input for CCM operation and for disabling at start-up or shorted output
4.2 Pinning
terminal 1
index area
GATE
SOURCE
ENABLE
XV
1
2
3
4
8
7
6
5
aaa-026448
DRAIN
GND
BLANKING
CAP
IC
Transparent top view
Figure 2. TEA1999TK pin configuration (SOT782-1)
UM11062
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© NXP B.V. 2018. All rights reserved.
User manual
Rev. 1.1 — 20 February 2018
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NXP Semiconductors
TEA1999DB1504 synchronous rectifier controller demo board
UM11062
5
Board photographs
a. Front view
Figure 3. TEA1999DB1504 demo board photographs
b. Back view
Keep the board clean after soldering. For no_clean fluxes, keep the board under pollution
degree 1 board conditions (IEC 60065).
UM11062
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© NXP B.V. 2018. All rights reserved.
User manual
Rev. 1.1 — 20 February 2018
5 / 13
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