MAX8722EEG ,Low-Cost CCFL Backlight ControllerApplicationsPART TEMP RANGE PIN-PACKAGENotebook Computer DisplaysMAX8722EEG -40°C to +85°C 24 QSOPL ..
MAX8724ETI ,Low-Cost Multichemistry Battery ChargersFeaturesThe MAX1908/MAX8724 highly integrated, multichemistry♦ ±0.5% Output Voltage Accuracy Using ..
MAX8724ETI+ ,Low-Cost Multichemistry Battery ChargersFeaturesThe MAX1908/MAX8724/MAX8765/MAX8765A highly♦ ±0.5% Output Voltage Accuracy Using Internalin ..
MAX8724ETI+T ,Low-Cost Multichemistry Battery ChargersFeaturesThe MAX1908/MAX8724/MAX8765/MAX8765A highly♦ ±0.5% Output Voltage Accuracy Using Internalin ..
MAX8725ETI ,28 V, multichemistry battery charger with automatic system power selectorFeatures♦ ±0.5% Accurate Charge Voltage (0°C to +85°C)The MAX1909/MAX8725 highly integrated control ..
MAX8725ETI+ ,Multichemistry Battery Chargers with Automatic System Power SelectorApplicationsNotebook and Subnotebook Computers Minimum Operating CircuitHand-Held Data TerminalsP3T ..
MB84VD21183EM-70PBS , Stacked MCP (Multi-Chip Package) FLASH MEMORY & SRAM CMOS
MB84VD21194EM-70PBS , Stacked MCP (Multi-Chip Package) FLASH MEMORY & SRAM CMOS
MB84VD22181FM-70PBS , 32M (X16) FLASH MEMORY & 4M (X16) STATIC RAM
MB84VD22182EE-90 ,32M (x 8/x16) FLASH MEMORY & 4M (x 8/x16) STATIC RAMFUJITSU SEMICONDUCTORDS05-50204-2EDATA SHEETStacked MCP (Multi-Chip Package) FLASH MEMORY & SRAMCMO ..
MB84VD22183EE-90 ,32M (x 8/x16) FLASH MEMORY & 4M (x 8/x16) STATIC RAMFEATURES• Power supply voltage of 2.7 to 3.3 V• High performance90 ns maximum access time (Flash)85 ..
MB84VD22184FM-70 , 32M (X16) FLASH MEMORY & 4M (X16) STATIC RAM
MAX8722EEG
Low-Cost CCFL Backlight Controller
General DescriptionThe MAX8722 integrated backlight controller is opti-
mized to drive cold-cathode fluorescent lamps (CCFLs)
using a full-bridge resonant inverter architecture.
Resonant operation maximizes striking capability and
provides near-sinusoidal waveforms over the entire
input range to improve CCFL lifetime. The controller
operates over a wide input voltage range (4.6V to 28V)
with high power to light efficiency. The device also
includes safety features that effectively protect against
many single-point fault conditions including lamp-out
and short-circuit faults.
The MAX8722 achieves 10:1 dimming range by “chop-
ping” the lamp current on and off using a digital pulse-
width modulation (DPWM) method. The DPWM frequency
can be accurately adjusted with a resistor or synchro-
nized to an external signal. The brightness is controlled
by an analog voltage on the CNTL pin. The device direct-
ly drives the four external n-channel power MOSFETs of
the full-bridge inverter. An internal 5.3V linear regulator
powers the MOSFET drivers, the DPWM oscillator, and
most of the internal circuitry. The MAX8722 is available in
a low-cost, 24-pin QSOP package and operates over a
-40°C to +85°C temperature range.
ApplicationsNotebook Computer Displays
LCD Monitors
LCD TVs
FeaturesSynchronized to Resonant Frequency
Longer Lamp Life
Guaranteed Striking Capability
High Power to Light EfficiencyWide Input Voltage Range (4.6V to 28V)Input-Voltage Feed-Forward for Excellent Line
RejectionAccurate Dimming Control with Analog Interface10:1 Dimming RangeAdjustable Accurate DPWM Frequency with Sync
FunctionAdjustable Lamp Current Rise and Fall TimeSecondary Voltage Limit Reduces Transformer
StressLamp-Out Protection with Adjustable TimeoutSecondary Overcurrent Protection with
Adjustable TimeoutLow-Cost 24-Pin QSOP Package
MAX8722
Low-Cost CCFL Backlight Controller
Ordering Information19-3321; Rev 0; 6/04
Minimal Operating Circuit
Pin Configuration
MAX8722
Low-Cost CCFL Backlight Controller
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS(Circuit of Figure 1. VBATT= 12V, VCC= VDD, VSHDN= 5.3V, TA
= 0°C to +85°C.Typical values are at TA= +25°C, unless otherwise noted.)
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
BATT to GND..........................................................-0.3V to +30V
BST1, BST2 to GND...............................................-0.3V to +36V
BST1 to LX1, BST2 to LX2........................................-0.3V to +6V
CNTL, FREQ, SYNC, VCC, VDDto GND...................-0.3V to +6V
COMP, DPWM, ILIM, TFLT to GND............-0.3V to (VCC + 0.3V)
GH1 to LX1..............................................-0.3V to (VBST1 + 0.3V)
GH2 to LX2..............................................-0.3V to (VBST2 + 0.3V)
GL1, GL2 to GND.......................................-0.3V to (VDD + 0.3V)
IFB, ISEC, VFB to GND................................................-3V to +6V
SHDNto GND...........................................................-0.3V to +6V
PGND to GND.......................................................-0.3V to +0.3V
Continuous Power Dissipation (TA= +70°C)
24-Pin QSOP (derate 9.5mW/°C above +70°C)........761.9mW
Operating Temperature Range...........................-40°C to +85°C
Junction Temperature......................................................+150°C
Storage Temperature Range.............................-65°C to +150°C
Lead Temperature (soldering, 10s).................................+300°C
MAX8722
Low-Cost CCFL Backlight Controller
ELECTRICAL CHARACTERISTICS (continued)
MAX8722
Low-Cost CCFL Backlight Controller
ELECTRICAL CHARACTERISTICS (continued)(Circuit of Figure 1. VBATT= 12V, VCC= VDD, VSHDN= 5.3V, TA
= 0°C to +85°C.Typical values are at TA= +25°C, unless otherwise noted.)
Dual Mode is a trademark of Maxim Integrated Products, Inc.
ELECTRICAL CHARACTERISTIC(Circuit of Figure 1. VBATT= 12V, VCC= VDD, VSHDN= 5.3V, TA
= -40°C to +85°C, unless otherwise noted.) (Note 1)
MAX8722
Low-Cost CCFL Backlight Controller
ELECTRICAL CHARACTERISTICS (continued)
Note 1:Specifications to -40°C are guaranteed by design based on final characterization results.
MAX8722
Low-Cost CCFL Backlight Controller
Typical Operating Characteristics
(Circuit of Figure 1. VBATT= 12V, VCC= VDD,VSHDN= 5.3V, TA= +25°C, unless otherwise noted.)
MAX8722
Low-Cost CCFL Backlight Controller
Typical Operating Characteristics (continued)
(Circuit of Figure 1. VBATT= 12V, VCC= VDD,VSHDN= 5.3V, TA= +25°C, unless otherwise noted.)
MAX8722
Low-Cost CCFL Backlight Controller
Typical Operating Characteristics (continued)
(Circuit of Figure 1. VBATT= 12V, VCC= VDD,VSHDN= 5.3V, TA= +25°C, unless otherwise noted.)
MAX8722
Low-Cost CCFL Backlight Controller
MAX8722
Low-Cost CCFL Backlight Controller
Pin Description (continued)
Figure 1. Typical Operating Circuit of the MAX8722
