TDA 16888/
TDA 16888G
Revision History:
Previous Version:
Page
Subjects (major changes since last revision)
2000-02-28
Datasheet
For questions on technology, delivery and prices please contact the Infineon
Technologies Offices in Germany or the Infineon Technologies Companies and
Representatives worldwide: see our webpage at http://www.infineon.com
CoolMOS™, CoolSET™ are trademarks of Infineon Technologies AG.
Edition 2000-02-28
Published by Infineon Technologies AG,
St.-Martin-Strasse 53,
D-81541 München
©
Infineon Technologies AG 1999.
All Rights Reserved.
Attention please!
The information herein is given to describe certain components and shall not be considered as warranted char-
acteristics.
Terms of delivery and rights to technical change reserved.
We hereby disclaim any and all warranties, including but not limited to warranties of non-infringement, regarding
circuits, descriptions and charts stated herein.
Infineon Technologies is an approved CECC manufacturer.
Information
For further information on technology, delivery terms and conditions and prices please contact your nearest Infi-
neon Technologies Office in Germany or our Infineon Technologies Representatives worldwide (see address list).
Warnings
Due to technical requirements components may contain dangerous substances. For information on the types in
question please contact your nearest Infineon Technologies Office.
Infineon Technologies Components may only be used in life-support devices or systems with the express written
approval of Infineon Technologies, if a failure of such components can reasonably be expected to cause the failure
of that life-support device or system, or to affect the safety or effectiveness of that device or system. Life support
devices or systems are intended to be implanted in the human body, or to support and/or maintain and sustain
and/or protect human life. If they fail, it is reasonable to assume that the health of the user or other persons may
be endangered.
High Performance Power Combi Controller
TDA 16888
1
1.1
Overview
Features
PFC Section
–
–
–
–
–
–
–
–
–
IEC 1000-3 compliant
Additional operation mode as auxiliary power supply
Fast, soft switching totem pole gate drive (1 A)
Dual loop control (average current and voltage
sensing)
Leading edge triggered pulse width modulation
Peak current limitation
Topologies of PFC preconverter are boost or flyback
Continuous/discontinuous mode possible
94% maximum duty cycle
P-DIP-20-5
P-DSO-20-1 /-6 /-7
PWM Section
–
–
–
–
–
–
–
Improved current mode control
Fast, soft switching totem pole gate drive (1 A)
Soft-start management
Trailing edge triggered pulse width modulation
Topologies of PWM converter are feed forward or flyback
50% maximum duty cycle to prevent transformer saturation
f
PWM
=
f
PFC
Ordering Code
Q67000-A9284-X201-K5
Q67000-A9310-A702
Package
P-DIP-20-5
P-DSO-20-1
Type
w
TDA 16888
w
TDA 16888 G
w
New type
Version 2.0
3
28 Feb 2000
TDA 16888
Special Features
–
–
–
–
–
–
–
–
–
–
High power factor
Typical 50
µA
start-up supply current
Low quiescent current (15 mA)
Undervoltage lockout with internal stand-by operation
Internally synchronized fixed operating frequency ranging from 15 kHz to 200 kHz
External synchronization possible
Shutdown of both outputs externally triggerable
Peak current limitation
Overvoltage protection
Average current sensing by noise filtering
1.2
General Remarks
The TDA 16888 comprises the complete control for power factor controlled switched
mode power supplies. With its PFC and PWM section being internally synchronized, it
applies for off-line converters with input voltages ranging from 90 V to 270 V.
While the preferred topologies of the PFC preconverter are boost or flyback, the PWM
section can be designed as forward or flyback converter. In order to achieve minimal line
current gaps the maximum duty cycle of the PFC is about 94%. The maximum duty cycle
of the PWM, however, is limited to 50% to prevent transformer saturation.
Version 2.0
4
28 Feb 2000
京公网安备 11010802033920号
Copyright © 2005-2026 EEWORLD.com.cn, Inc. All rights reserved
电子工程世界
