- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄384806 > OZ965IG (Electronic Theatre Controls, Inc.) High-Efficiency Inverter Controller PDF資料下載
參數(shù)資料
| 型號： | OZ965IG |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | High-Efficiency Inverter Controller |
| 中文描述： | 高效率逆變控制器 |
| 文件頁數(shù)： | 1/7頁 |
| 文件大小： | 66K |
| 代理商： | OZ965IG |
OZ965
06/20/00
Copyright 2000 by O
2
Micro
OZ965-SF-3.0
All Rights Reserved
Page 1
U.S. Patent #5,619,402
High-Efficiency Inverter Controller
FEATURES
Single-stage power conversion, requiring
only a +5 V voltage source
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
protections
Wide dimming range
Supports multiple CCFLs
Simple and reliable 2-winding transformer
design
Eliminates leakage current when used in a
floating secondary design
Constant-frequency
interference with LCDs
ORDERING INFORMATION
OZ965G
- 16-pin plastic SOP
OZ965R
- 16-pin plastic TSSOP
OZ965
I
G
- 16-pin plastic SOP
OZ965
I
R
- 16-pin plastic TSSOP
GENERAL DESCRIPTION
The OZ965 is a single chip, high-efficiency, Cold
Cathode Fluorescent Lamp (CCFL) backlight
inverter controller whose primary function is to
convert +5 volt DC power to approximately 600
VAC. Additionally, the OZ965 performs the lamp
10u
R4
20k
C4
0.1u
and
short-circuit
design
eliminates
dimming function with an analog voltage or low
frequency Pulse Width Modulation (PWM)
control.
Operating Principle:
The CCFL tube, transformer secondary, and
capacitor form a resonant circuit. The OZ965
utilizes the low energy loss resonate mode
principle to deliver a very high efficiency inverter.
The OZ965 drives the transformer primary with a
variable pulse width voltage directly from the +5v
supply. The resultant primary drive current is
alternately reversing with zero-voltage-switching.
Because of the transformer leakage inductance
and
the
secondary
secondary voltage and current are approximately
sinusoidal. This sinusoid results in very little
harmonic emi/rfi emissions.
The OZ965 operates at a single, constant
frequency in a PWM mode. Typical operating
frequency ranges between 30 KHz to 200 KHz,
dependent upon the CCFL and transformer
characteristics. Intelligent open-lamp protection
provides design flexibility so various transformer
models/manufacturers may be used.
Its high driving capability allows the OZ965 to
drive high power MOSFETs.
The single stage design results in a low cost,
reliable transformer without expensive, less
reliable secondary fold-back treatment. The
transformer does not require a more expensive
center tapped primary.
The OZ965 is available in 16-pin SOP and
TSSOP packages. It is specified over the
commercial temperature range of 0
°
C to +70
°
C,
and the industrial temperature range of -40
°
C to
+85
°
C.
resonant
circuit,
the
CR3
1
3
2
C3
C6
470p
C9
R6
59.0k
R3
150k
U1
OZ965
REF
HCLMP
LCLMP
1
2
3
SCP
ADJ
FB
CMP
4
5
6
7
8
SST
9
10
PDR
11
ENA
12
OPS
13
CT
14
RT
15
VDD
16
R15
4.3k
C11
0.1u
R13
510k
C2
22u
C7
10u
R2
22
R5
15k
C8
0.1u
T1
17:2200
2
7
5
6
U2
Si4532
2
1
4
3
5
6
7
8
C1
0.1u
C10
2.2u
R1
100k
J1
5V
5V
1
2
3
4
5
6
ENA
DIM
GND
GND
C12
0.1u
R16
R17
C5
68p 3kv
J2
HV
RTN
1
2
Q1
Q2
Figure 1. Typical Application Circuit
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| OZ965IR | High-Efficiency Inverter Controller |
| OZ965 | High-Efficiency Inverter Controller |
| OZ965G | High-Efficiency Inverter Controller |
| OZ965R | High-Efficiency Inverter Controller |
| OZ968 | SMBus Smart Inverter Controller |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| OZ965IR | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:High-Efficiency Inverter Controller |
| OZ965R | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:High-Efficiency Inverter Controller |
| OZ968 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:SMBus Smart Inverter Controller |
| OZ968G | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:SMBus Smart Inverter Controller |
| OZ990 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Power Management Units (PMUs) |
發(fā)布緊急采購，3分鐘左右您將得到回復。