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OZ965R 데이터시트 PDF




ETC에서 제조한 전자 부품 OZ965R은 전자 산업 및 응용 분야에서
광범위하게 사용되는 반도체 소자입니다.


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부품번호 OZ965R 기능
기능 High-Efficiency Inverter Controller
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OZ965R 데이터시트, 핀배열, 회로
OZ965
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 and short-circuit
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 design eliminates
interference with LCDs
ORDERING INFORMATION
OZ965G - 16-pin plastic SOP
OZ965R - 16-pin plastic TSSOP
OZ965IG - 16-pin plastic SOP
OZ965IR - 16-pin plastic TSSOP
GENERAL DESCRIPTION
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 resonant circuit, the
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 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
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.
Figure 1. Typical Application Circuit
J1
5V
5V
ENA
DIM
GND
GND
1
2
3
4
5
6
100k
R1
C1
0.1u
R3
150k
R2
22
C2
22u
R4
20k
R5
15k
C3
10u
C4
0.1u
C9
0.01u
U1
1
2
3
4
REF
HCLMP
LCLMP
5
6
7
8
SCP
ADJ
FB
CMP
GND
OZ965
C8
0.1u
VDD
RT
CT
OPS
ENA
NDR
PDR
SST
16
15
14
13
12
11
10
9
C10
2.2u
R6 59.0k
470p C6
C11
0.1u
R13
510k
U2
28
17
Q1
46
35
Q2
Si4532
2
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.
2
17:2200
C5 J2
71
68p 3kv
2
HV
RTN
56
T1
C7
10u
CR3
BAV99L
R16
100k
R15
4.3k
C12
0.1u
R17
1.02k
06/20/00
Copyright 2000 by O2Micro
OZ965-SF-3.0
All Rights Reserved
Page 1
U.S. Patent #5,619,402




OZ965R pdf, 반도체, 판매, 대치품
FUNCTIONAL SPECIFICATIONS
OZ965
Parameter
Reference Voltage
Nominal voltage
Line regulation
Load regulation
Oscillator
Initial accuracy
Ramp peak
Ramp valley
Temp. stability
Error Amplifier
Input bias current
Input offset voltage
Input voltage range
Open loop voltage gain
Unity gain bandwidth
Power supply rejection
Under-Voltage Lockout
Positive-going threshold voltage
Negative-going threshold voltage
Supply
Supply current - Enable Low
Supply current - Enable High
NDR output
Output high voltage
Output low voltage
Output resistance
PDR output
Output high voltage
Output low voltage
Output resistance
Break-Before-Make
Qn off to Qp on delay
Qp off to Qn on delay
High Clamp
Duty cycle of NDR
Low Clamp
Duty cycle of NDR
Max. / Min. Duty cycle
Duty cycle of NDR
Symbol
Test Conditions
4.75 V < VDD < 5.25 V
Limits
Min Typ Max
Unit
Vref
Iload = 0.1 mA,
2.37 2.50 2.63
V
-6
- mV/V
Iload = 0.2 mA to 1.0 mA
- 1 - mV/mA
fosc Ct = 470 pF, Rt = 49.9 k
81 KHz
- 2.54 -
V
TA = -40oC to 85oC
- 0.48 -
V
- - 200 ppm/ oC
ADJ=FB=2.0 V
VFB = 4.0 V
- 0.25
-
uA
5 10 mV
0
- VDD-
V
1.5
- 65
-
dB
- 1.5
-
MHz
- 60
-
dB
See Table 1, page 5
See Table 1, page 5
IOFF
ION VDD = 5.0 V
- 195
- 1.0
-
-
µA
mA
VOH
VOL
ROUT
Isource = 10 mA, VDD = 5V - 4.75
-
Isink = 10 mA, VDD = 5V
- 0.25 0.5
- 10
-
V
V
VOH
VOL
ROUT
Isource = 10 mA, VDD = 5V
Isink = 10 mA, VDD = 5V
-
-
-
4.7
0.5
15
-
-
-
V
V
THL
TLH
HCLMP
OPS=1 V VHCLMP=0V
OPS=1 V, VHCLMP=1.8V
- 250
- 220
-
-
92 94
- 14
96
-
ns
Ns
%
LCLMP
OPS=0 V, VLCLMP=0V
OPS=0 V, VLCLMP=1.8V
92 94
- 14
96
-
%
6 - 95
%
OZ965-SF-3.0
Page 4

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OZ965R 전자부품, 판매, 대치품
EH
SOP-16
PACKAGE
D
Be
AD
A1
L
OZ965
DIM
INCHES
MILLIMETERS
MIN MAX MIN MAX
A 0.0532 0.0688 1.35 1.75
A1 0.0040 0.0098 0.10 0.25
B 0.013 0.020 0.33 0.51
C 0.0075 0.0098 0.19 0.25
D 0.3859 0.3937 9.80 10.00
E 0.1497 0.1574 3.80 4.00
e 0.050 BCS.
1.27 BCS.
H 0.2284 0.244 5.80 6.20
0
L 0.016 0.050 0.40 1.27
α 0° 8° 0° 8°
C
OZ965-SF-3.0
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부품번호상세설명 및 기능제조사
OZ965

High-Efficiency Inverter Controller

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OZ965

High-Efficiency Inverter Controller

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