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MAX8790 डेटा पत्रक PDF( Datasheet डाउनलोड )


डेटा पत्रक - Six-String White LED Driver - Maxim Integrated Products

भाग संख्या MAX8790
समारोह Six-String White LED Driver
मैन्युफैक्चरर्स Maxim Integrated Products 
लोगो Maxim Integrated Products लोगो 
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<?=MAX8790?> डेटा पत्रक पीडीएफ

MAX8790 pdf
MAX8790
Six-String White LED Driver with Active
Current Balancing for LCD Panel Applications
Absolute Maximum Ratings
IN, SHDN, to GND..................................................-0.3V to +28V
FB_ to GND............................................................-0.3V to +28V
VCC, BRT, ENA, OSC, OV to GND...........................-0.3V to +6V
ISET, CCV, CS, FSET, CPLL, EXT to GND...-0.3V to (VCC + 0.3V)
Continuous Power Dissipation (TA = +70°C)
20-Pin Thin QFN (derate 16.9mW/°C above +70°C)....1349mW
Operating Temperature Range.............................-40°C to +85°C
Junction Temperature........................................................+150°C
Storage Temperature Range..............................-60°C to +150°C
Lead Temperature (soldering, 10s)...................................+300°C
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.
Electrical Characteristics
(Circuit of Figure 1. VIN = 12V, VSHDN = VIN, CCV = 0.1μF, TA = 0°C to +85°C, unless otherwise noted. Typical values are at TA = +25°C.)
PARAMETER
IN Input Voltage Range
IN Quiescent Current
VCC Output Voltage
VCC Short-Circuit Current
VCC UVLO Threshold
STEP-UP CONVERTER
EXT High Level
EXT Low Level
EXT On-Resistance
EXT Sink/Source Current
OSC High-Level Threshold
CONDITIONS
VIN = VCC
VCC = bypassed to GND through 1µF capacitor
VSHDN = high
VIN = 26V
VIN = VCC = 5V
SHDN = GND
VSHDN = 5V, 6V < VIN < 26V, 0 < IVCC < 10mA
Rising edge, hysteresis = 20mV
10mA from EXT to GND
-10mA from EXT to VCC
EXT high or low
EXT forced to 2V
OSC Midlevel Threshold
OSC Low-Level Threshold
Operating Frequency
Minimum Duty Cycle
Maximum Duty Cycle
CS Trip Voltage
CONTROL INPUT
SHDN Logic-Input High Level
SHDN Logic-Input Low Level
BRT, ENA Logic-Input High Level
BRT, ENA Logic-Input Low Level
VOSC = VCC
VOSC = open
VOSC = GND
PWM mode
Pulse skipping, no load
Duty cycle = 75%
MIN
4.5
5.5
4.7
15
4.00
TYP
1
1
5.0
56
4.25
MAX
5.5
26.0
2
2
10
5.3
130
4.45
UNITS
V
mA
µA
V
mA
V
VCC -
0.1
VCC -
0.4
1.5
0.9
675
450
94
85
VCC
0
2
1
1.0
750
500
10
0
95
100
0.1
5
VCC -
2.0
0.4
1.1
825
550
115
V
V
A
V
V
V
MHz
kHz
%
%
mV
2.1 V
0.8 V
2.1 V
0.8 V
www.maximintegrated.com
Maxim Integrated 2

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डाउनलोड[ MAX8790 Datasheet.PDF ]


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