|
|
Numéro de référence | OZ962 | ||
Description | High-Efficiency Inverter Controller | ||
Fabricant | ETC | ||
Logo | |||
1 Page
OZ962
High-Efficiency Inverter Controller
FEATURES
• Single-stage power conversion, input voltage
range of 5V to 18V
• Reduces the number of components and board
size by 30% compared with conventional design
• Supports both floating and grounded secondary
designs
• 90% efficiency vs. typical 75% efficiency of
conventional designs
• Internal open-lamp and short-circuit protections
• Wide dimming range
• Supports synchronization among multiple
inverter modules
• Reliable 2 -winding transformer design,
eliminates arcing problems
• Constant frequency, symmetrical, sinusoidal
drive
ORDERING INFORMATION
OZ962R - 16 lead TSSOP
OZ962G - 16-pin plastic SOP
GENERAL DESCRIPTION
The OZ962 is a unique high-efficiency, CCFL
backlight controller. It generates symmetrical,
near sinusoidal output voltage and current
waveforms for driving a CCFL backlight. The
OZ962 operates in a single, constant frequency,
pulse-width-modulation (PWM) mode. Typical
operating frequency ranges between 30 KHz to
100 KHz, depending on the CCFL and the
transformer’s characteristics.
Operating in a PWM push-pull manner, the
transformer in the OZ962 backlight inverter
requires only one primary winding and one
secondary winding, with the secondary winding
requiring no fold-back treatment.
The OZ962 is available in both 16-pin SOIC and
TSSOP packages. It is specified over the
commercial temperature range: 0 oC to +70 oC.
TYPICAL APPLICATION CIRCUIT
F1
VDD (+12V) 1A Fast Fuse
ENA
GND
CN1
R2
10K
R3
5.1K
+ C1
- 22u
25V
R1 R9
220K 200K C9
.01u
C2 C3
0.1u
330p
1
REF
U1
16
VDD
2 OZ962G 15
OVP
RT
3
NC
14
CT
4
SCP
13
CLK
5
ADJ
12
ENA
6
FB
11
NDR
7
CMP
10
PDR
8
GND
9
SST
R11 R4
1M 15K
R5
10K
C5
220p
C4
0.1u
R10
100
C8
0.22u
R7
100K
R6
30
3 U2
Q2 *
33T
4 C6 2.2u
5,6 50V
SI4559EY
-+
7,8
2
Q1
1
R8
0.5
R12
750
C7
* 68p
2200T 3KV
3.5W
R14
1.0K
R13
100
Figure 1. Typical Floating Secondary Application
Circuit
03/01/00
©Copyright 1999 by O2Micro
OZ962-SF -2.7
All Rights Reserved
Page 1
U.S. Patent #5,619,402
|
|||
Pages | Pages 6 | ||
Télécharger | [ OZ962 ] |
No | Description détaillée | Fabricant |
OZ960 | Intelligrnt CCFL Inverter Controller | O2Micro |
OZ962 | High-Efficiency Inverter Controller | ETC |
OZ962 | High-Efficiency Inverter Controller | ETC |
OZ962G | High-Efficiency Inverter Controller | ETC |
US18650VTC5A | Lithium-Ion Battery | Sony |
TSPC106 | PCI Bus Bridge Memory Controller | ATMEL |
TP9380 | NPN SILICON RF POWER TRANSISTOR | Advanced Semiconductor |
www.DataSheetWiki.com | 2020 | Contactez-nous | Recherche |