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EL7581 डेटा पत्रक PDF( Datasheet डाउनलोड )


डेटा पत्रक - 3-Channel DC-DC Converter - Intersil Corporation

भाग संख्या EL7581
समारोह 3-Channel DC-DC Converter
मैन्युफैक्चरर्स Intersil Corporation 
लोगो Intersil Corporation लोगो 
पूर्व दर्शन
1 Page
		
<?=EL7581?> डेटा पत्रक पीडीएफ

EL7581 pdf
EL7581
Absolute Maximum Ratings (TA = 25°C)
VIN Input Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14V
VDDB, VDDP, VDDN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18V
LX Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18V
Maximum Continuous Output Current . . . . . . . . . . . . . . . . . . . . . .1A
Storage Temperature . . . . . . . . . . . . . . . . . . . . . . . .-65°C to +150°C
Die Junction Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . 125°C
Power Dissipation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . See Curves
Operating Ambient Temperature . . . . . . . . . . . . . . . .-40°C to +85°C
CAUTION: Stresses above those listed in “Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress only rating and operation of the
device at these or any other conditions above those indicated in the operational sections of this specification is not implied.
IMPORTANT NOTE: All parameters having Min/Max specifications are guaranteed. Typ values are for information purposes only. Unless otherwise noted, all tests are
at the specified temperature and are pulsed tests, therefore: TJ = TC = TA
Electrical Specifications VIN = 3.3V, VBOOST = 12V, ROSC = 100k, TA = 25°C Unless Otherwise Specified.
PARAMETER
DESCRIPTION
CONDITIONS
MIN TYP MAX UNIT
DC-DC BOOST CONVERTER
IQ1_B
Quiescent Current - Shut-down
ENBN = ENP = 0V
0.8 10 µA
IQ2_B
V(FBB)
Quiescent Current - Switching
Feedback Voltage
ENBN = VDDB
1.275
4.8
1.300
8
1.325
mA
V
VREF
VROSC
I(FBB)
Reference Voltage
Oscillator Set Voltage
Feedback Input Bias Current
1.260
1.260
1.310
1.325
0.1
1.360
1.390
V
V
µA
VDDB
Boost Converter Supply Range
2 17 V
DMAX
Maximum Duty Cycle
85 92
%
I(LX)MAX
Peak Internal FET Current
2.75 A
RDS-ON
Switch On Resistance
at VBOOST = 10V, I(LX) total = 500mA
0.15
ILEAK-SWITCH Switch Leakage Current
I(LX) total
2 µA
VBOOST
Output Range
VBOOST > VIN + VDIODE
5 17 V
VBOOST/VIN Line Regulation
2.7V < VIN < 13.2V, VBOOST = 15V
0.1 %
VBOOST/IO1 Load Regulation
50mA < IO1 < 300mA
0.5 %
FOSC-RANGE Frequency Range
ROSC range = 240kto 60k
200 1000 kHz
FOSC1
Switching Frequency
ROSC = 100k
620 680 750 kHz
POSITIVE REGULATED CHARGE PUMP (VON)
Most positive VON output depends on the magnitude of the VDDP input voltage (normally connected to VBOOST) and the external component
configuration (doubler or tripler)
VDDP
IQ1(VDDP)
IQ2(VDDP)
V(FBP)
Supply Input for Positive Charge Pump
Quiescent Current - Shut-down
Quiescent Current - Switching
Feedback Reference Voltage
Usually connected to VBOOST output
ENP = 0V
ENBN = ENP = VDDB
5
1.245
11.5
2.3
1.310
17
20
5
1.375
V
µA
mA
V
I(FBP)
Feedback Input Bias Current
0.1 µA
I(DRVP)
RMS DRVP Output Current
ILR_VON
FPUMP
Load Regulation
Charge Pump Frequency
VDDP = 12V
VDDP = 6V
5mA < IL < 15mA
Frequency set by ROSC - see boost section
60
15
-0.5 0.03 0.5
0.5*FOSC
mA
mA
%/mA
2

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