1. INVERTER FOR CCFL ELECTRICAL Requirements
Cold Cathode Fluorescent Lamp (CCFL) Drivers
INVERTER FOR CCFL ELECTRICAL Requirements
KHz 65 55 45 F
Lamp Frequency Hz
158
150
142
PWM Frequency
PWM duty cycle %
100 - 30
INV_PWM
PWM signal V
3.6
3.3
3.0
PWM Signal
Low level
0.8
0.5
OFF
Backlight on/off signal
2.8 ON
Dis off
PWM=30% mA IL
PWM=100%
6.8
6.5
6.2
Lamp Current
V rms
650 VL
Lamp Voltage
1550 Vs
H.V(open) A
0.65
I in
Input Current
V DC 21
14.8 9
INV_PWR
Input Voltage
Remark
UNIT
Max
TYP.
Min.
Symbol
ITEM
Design by Cary.Chen

2. CCFL Driver Product Selection Guide
Cold Cathode Fluorescent Lamp (CCFL) Drivers
CCFL Driver Product Selection Guide
#:Fixed Operating Frequency
#:Input Voltage Range of 10V to 32V
#:Full-Wave Sense Amp
#:Integrated Burst Mode Oscillator
and Modulator
#:Soft-On and Soft-Off Burst
Envelope
SOIC28
TSSOP28
EV1038DM-03A 3 10 6
NR*
35V
10V TO 32V UP TO 8
MP1038
#:4.5V to 14V Power Input (VBatt))
#:Current Voltage Feedback Control
#:Analog and Burst Mode Dimming
TSSOP20F
EV1026EF-00A
1.8
500
N/A
4.5V TO 5.5V
16V
4.5V TO 14V 1
MP1026
#:Integrated Power Switches
#:Open Lamp Regulation
#:Current and Voltage Feedback
Control
#:Logic Level Burst Mode Control
#:Supports Open/Short Lamp
Protection
#:Soft Start
#:Output is Short Circuit Protected
TSSOP20
EV0037
2.5 5
25V
6.0V
22V
MP1010B
主要特性 封装
评估板
静态工作电流mA
静态静止电流uA
参考电压
偏置供电电压
最大输入电压
输入电压
灯管数
Part Number

3. CCFL Drivers Features and Benefits
Cold Cathode Fluorescent Lamp (CCFL) Drivers
CCFL Drivers Features and Benefits
MPS has a patented technique for matching lamp currents allowing 2% tolerances
Multiple Lamp Capacity
Our Ics incorporate Analog and PWM dimming techniques, internal oscillators for burst mode and integrated soft-on and soft-off capabilities.
Brightness
All CCFL IC drivers integrate full bridge architecture using N-Channel MOSFETs, which reduces total solution part count. In addition MPS’ patented circuit architecture creates an efficient and low cost solution.
Small Form Factor
All of our devices provide integrated short circuit and open and short lamp protection.
Protection
The full bridge technology allows near perfect sine waves for optimum efficiency
which results in the maximum light output per watt. This also eliminates the need
for high voltage ballast capacitors.
High Efficiency
This technology ensures the lamp will strike at any temperature and in any environment. In addition no additional components are required for varying the frequency of the lamp.
Resonant Technology
Benefits
Features

4. CCFL Application Table
Cold Cathode Fluorescent Lamp (CCFL) Drivers
CCFL Application Table
MP1038
Lamp Matching
Multiple Lamp Capability
Thermal Management
Up to 150 Watts
Flat Panel LCD Monitors
Automotive Entertainment
High / Bright Displays (Daylight
Readable)
MP1010B
MP1026
High Efficiency
Small Form Factor
6 to 25 Volt Operation(MP1010B)
4.5 to 14V Volt Operation(MP1026)
Low Cost Solution
Up to 8 Watts
Notebooks
Web Pads / Tablets
Picture Frames
eBooks
Portable DVD Players
POS / ATM Terminals
MP1022A
MP1025
Low Profile Module
2.6 to 6 Volt Operation
Up to 2 Watts
PDAs
Digital Cameras
Handheld Products
Video Cameras
GPS Systems
Copiers
MPS Products
Requirements
Application

5. Cold Cathode Fluorescent Lamp (CCFL) Drivers
MP1010B
FEATURES
#:Integrated Power Switches
#:6.0V to 22V Variable Supply Voltage with
Regulated Lamp Current.
#:Rated 12W Power Output at 12V Input
#:Open Lamp Regulation
#:Current and Voltage Feedback Control
#:Logic Level Burst Mode Control
#:Supports Open/Short Lamp Protection
#:Soft-Start
#:Short Circuit Protected Output
#:High Energy Start Pulse
#:Analog and Burst Mode Dimming
DESCRIPTION
The MP1010B is a power solution IC that offers
a true complete solution for driving a Cold
Cathode Fluorescent Lamps (CCFL). This
Power IC converts unregulated DC voltage to a
nearly pure sine wave required to ignite and
operate the CCFL. Based on proprietary power
topology and control techniques it greatly
increases the power conversion efficiency.
APPLICATIONS
#:LCD Backlight Inverter for Notebook Computers
#:Web Pads, GPS, Desktop Displays,
Portable DVD, Car Video Display Systems

6. Cold Cathode Fluorescent Lamp (CCFL) Drivers
DESCRIPTION
The MP1026 is a Power IC that offers a
complete solution for driving a Cold Cathode
Fluorescent Lamp (CCFL). This Power IC
converts unregulated DC voltage to a nearly
pure sine wave required to ignite and operate
the CCFL.
The MP1026 greatly increases power
conversion efficiency and supports both analog
and burst mode dimming, simplifying the module
implementation. The MP1026 offers the
following distinct performance advantages:
#:More light for less power
#:Small board implementation
#:Low RF emission
#:Low external components cost
The MP1026 is suitable for 2-Cell Li-Ion battery
applications using 5V, 9V, or 12V adapters as
the power source.
FEATURES
#:4.5V to 14V Power Input (VBatt)
#:Increase Transformer Reliability
#:Open Lamp Timer and Regulation
#:Current and Voltage Feedback Control
#:Logic Level Burst Mode Control
#:Supports Open/Short Lamp Protection
#:Soft-Start
#:Outputs are Short Circuit Protected
#:Allows Burst-Mode Operation
#:Improved Line Transient Response
#:Tightened Lamp Current Accuracy

7. Cold Cathode Fluorescent Lamp (CCFL) Drivers
DESCRIPTION
The MP1038 is a fixed operating frequency inverter
controller that controls four external N-Channel
power MOSFETs in a full-bridge configuration. The
inverter is designed to power one or more cold
cathode fluorescent lamps (CCFL) to backlight
liquid crystal displays. Its full-bridge architecture
converts unregulated DC input voltages to the
nearly pure sine waves required to ignite and
operate CCFL.
For reliable lamp ignition, the operating frequency is
set by an external resistor and during startup, is
temporarily swept toward the unloaded resonant
frequency of the tank. The built-in burst oscillator
can be synchronized with an external clock to
minimize display scan interference. Burst mode or
analog mode dimming is controlled with an external
analog signal. Built-in fault management features
include an open lamp regulator, a transformer
secondary peak current regulator, and a dual-mode
fault timer. The secondary over-current timeout can
be shortened with external components. Built-in
current limits for the external switches protect
against inadvertent shorts. The MP1038 is available
in TSSOP28 and SOIC28 packages.
FEATURES
#:Controls Four External, Low Cost, N-Channel
MOSFETs
#:Fixed Operating Frequency
#:Input Voltage Range of 10V to 32V
#:Lamp Current and Voltage Regulation
#:Full-Wave Sense AmpE
#:Analog and Burst Mode Dimming Control
#:Integrated Burst Mode Oscillator and Modulator
#:Soft-On and Soft-Off Burst Envelope
#:Open Lamp Protection
#:Secondary Over-Current Protection
#:Dual-mode, Fault Timer
#:Available in TSSOP28 and SOIC28 Packages