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Application Notes
 
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MAX9217/MAX9218 Serializer/Deserializer Receives EE Times Ultimate Products Award







CCFL Inverters with Analog Dimming Interface



DATA SHEETS
Part Number Description Key Advantages
MAX8785AEVKIT Evaluation Kit for the MAX8785A

MAX5498EVKIT Evaluation Kit for the MAX5494, MAX5495, MAX5496, MAX5497, MAX5498, and MAX5499

DS3991 Low-Cost CCFL Controller

Full-Featured Single-Channel CCFL Controller
MAX8785A Full-Bridge CCFL Controller for Piezoelectric Transformers

Full-Bridge CCFL Controller for Piezoelectric Transformer-Based Backlight Power Supplies
MAX8751 Fixed-Frequency, Full-Bridge CCFL Inverter Controller

MAX8729 Constant-Frequency, Half-Bridge CCFL Inverter Controller

MAX5494, MAX5495, MAX5496,
...
10-Bit, Dual, Nonvolatile, Linear-Taper Digital Potentiometers

DS3992 Two-Channel, Push-Pull CCFL Controller

Provides Superior Lamp Current Balance Compared to Single-Channel Solutions
DS3994 4-Channel Cold-Cathode Fluorescent Lamp Controller

Allows the Implementation of Scanning Backlight Schemes Using Only One CCFL Controller IC
DS3882 Dual-Channel Automotive CCFL Controller

Low Component Count, Feature-Rich, Automotive Inverter Solution
DS3881 Single-Channel, Automotive CCFL Controller

Low Component Count, Feature-Rich, Automotive Inverter Solution
MAX1895, MAX1995 High-Efficiency, Wide Brightness Range, CCFL Backlight Controllers

MAX1739, MAX1839 Wide-Brightness-Range CCFL Backlight Controllers

Industry's-First Completely Integrated CCFL Inverter Controller with Wide Dimming Range, High Performance, and Complete Fault Protection Features



Key Specifications:

CCFL Controllers
Part Number VIN
(V)
VIN
(V)
Topology Channels Dimming Interface Freq. EV Kit Industry Qualified Package/Pins Smallest Available Pckg.
(mm2)
Oper. Temp.
(°C)
min max max w/pins
DS3991  4.5 24
Half-Bridge
Push-Pull
1
Analog
DPWM
Fixed PWM No
Automotive - AECQ100
Automotive - General
SOIC(N)/16
61.9 -40 to +85
DS3992  4.5 5.5 Push-Pull 2
Analog
DPWM
Fixed PWM No -
SOIC(N)/16
61.9 -40 to +85
DS3994  4.5 5.5 Push-Pull 4
Analog
DPWM
I2C
SMBus
Fixed PWM No -
SOIC(W)/28
192.8 -40 to +85
DS3881  4.75 5.25 Push-Pull 1
Analog
DPWM
I2C
SMBus
Fixed PWM Yes Automotive - General
TSSOP/24
52.4 -40 to +105
DS3882  4.75 5.25 Push-Pull 2
Analog
DPWM
I2C
SMBus
Fixed PWM Yes Automotive - General
TSSOP/28
64.7 -40 to +105
MAX8729  6 28 Half-Bridge 1
Analog
DPWM
Fixed PWM Yes -
QSOP/28
61.9 -40 to +85
MAX8751  6 28 Full-Bridge 1
Analog
DPWM
Fixed PWM Yes -
TQFN/32
26 -40 to +85
MAX1895  4.6 28 Full-Bridge 1
Analog
DPWM
I2C
SMBus
Fixed PWM Yes -
See Data Sheet
- -40 to +85
MAX1739  4.6 28 Royer Oscillator 1
Analog
DPWM
I2C
SMBus
Resonant No -
QSOP/20
54.2 -40 to +85
MAX1839  4.6 28 Royer Oscillator 1
Analog
DPWM
Resonant No -
QSOP/20
54.2 -40 to +85
See All CCFL Controllers (13)

Digital Potentiometers
Part Number Taper POTs Control Interface Wiper Memory Steps REND-TO-END
(kΩ)
Res. Tol.
(%)
Temp. Coeff.
(ppm/°C)
ICC @5V
(µA)
Smallest Available Pckg.
(mm2)
typ max max w/pins
MAX5494  Linear 2 3-Wire Serial SPI Non-Volatile 1024 10 25 35 1.5 26
MAX5495  50
MAX5496  10
MAX5497  50
MAX5498  10
MAX5499  50
See All Digital Potentiometers (126)





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