NXP Semiconductors UM10972, Руководство пользователя

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NXP Semiconductors
UM10972
TEA1916DB1262 digital resonant 240 W/12 V power supply demo board
UM10972 All information provided in this document is subject to legal disclaimers. © NXP B.V. 2018. All rights reserved.
User manual Rev. 1.1 — 8 June 2018
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1.1.1 Pinning
IC
SUPIC SNSBOOST
SNSFB SNSCAP
SNSOUT SNSCUR
GND SNSSET
SUPREG n.c.
GATELS HB
n.c. SUPHS
SUPHV GATEHS
aaa-017286
1
2
3
4
5
6
7
8
10
9
12
11
14
13
16
15
IC
GATEPFC SNSAUX
GND PFCCOMP
SNSCUR SNSMAINS
SUPIC SNSBOOST
aaa-017287
1
2
3
4
6
5
8
7
a. TEA19161T b. TEA19162T
Figure 1. Pinning diagrams
1.2 TEA1995T
The TEA1995T is the first product of a new generation of Synchronous Rectifier (SR)
controller ICs for switched-mode power supplies. It incorporates an adaptive gate drive
method for maximum efficiency at any load.
The TEA1995T is a dedicated controller IC for synchronous rectification on the
secondary side of resonant converters. It includes two driver stages for driving the SR
MOSFETs, which rectify the outputs of the central tap secondary transformer windings.
The two-gate driver stages have their own sensing inputs and operate independently.
IC
GDB GDA
GND V
CC
DSB DSA
SSB SSA
aaa-016990
1
2
3
4
6
5
8
7
Figure 2. TEA1995T pinning diagram