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EL7515 डेटा पत्रक PDF( Datasheet डाउनलोड )


डेटा पत्रक - High Frequency PWM Step-Up Regulator - Intersil Corporation

भाग संख्या EL7515
समारोह High Frequency PWM Step-Up Regulator
मैन्युफैक्चरर्स Intersil Corporation 
लोगो Intersil Corporation लोगो 
पूर्व दर्शन
1 Page
		
<?=EL7515?> डेटा पत्रक पीडीएफ

EL7515 pdf
EL7515
Absolute Maximum Ratings (TA = 25°C)
EN, LBI, VDD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .+12V
LX . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .+18V
Storage Temperature . . . . . . . . . . . . . . . . . . . . . . . .-65°C to +150°C
Operating Temperature . . . . . . . . . . . . . . . . . . . . . . .-40°C to +85°C
Operating Junction Temperature: . . . . . . . . . . . . . . . . . . . . . . 135°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 = 5V, VOUT = 12V, L = 10µH, IOUT = 0mA, RT = 100k, TA = 25°C, Unless Otherwise Specified.
PARAMETER
DESCRIPTION
CONDITIONS
MIN TYP MAX UNIT
VIN
VOUT
IQ1
IQ2
VFB
IB
Input Voltage Range
Output Voltage Range
Quiescent Current - Shut-down
Quiescent Current
Feedback Voltage
Feedback Input Bias Current
VEN = 0, feedback resisters disconnected
VEN = 2V
1.8
4.5
1.29
1.4
1.33
13.2
17
1
2
1.37
0.10
V
V
µA
mA
V
µA
DMAX
Maximum Duty Cycle
ILIM Current Limit - Max Peak Input Current
ISHDN
Shut-down Input Bias Current
VLBI
LBI Threshold Voltage
VOL-LBO
LBO Output Low
ILBO = 1mA
ILEAK-LBO
LBO Output Leakage Current
VLBI = 250mV, VLBO = 5V
RDS-ON
Switch On Resistance
at 12V output
ILEAK-SWITCH
Switch Leakage Current
VOUT/VIN/VOUT Line Regulation
3V < VIN < 6V, VOUT = 12V, no load
VOUT/VOUT
Load Regulation
IOUT = 50mA to 150mA
FOSC-MAX
Maximum Switching Frequency
RT = 49.9k
FOSC1
Switching Frequency
VHI_EN
EN Input High Threshold
84 90
%
1 1.4
A
1 µA
180 220 250 mV
0.1 0.2
V
0.02 2
µA
220 m
1 µA
0.4 %/V
1%
1200
kHz
600 670 750 kHz
1.6 V
VLO_EN
EN Input Low Threshold
0.5 V
Pin Descriptions
PIN NUMBER
1
2
3
4
5
6
7
8
9
10
PIN NAME
PGND
SGND
RT
EN
LBI
LBO
SS
FB
VDD
LX
PIN FUNCTION
Power ground; connected to the source of internal N-channel power MOSFET
Signal ground; ground reference for all the control circuitry; needs to have only a single connection to PGND
Timing resistor to adjust the oscillation frequency of the converter
Chip enable; connects to logic HI (>1.6V) for chip to function
Low battery input; connects to a sensing voltage, or left open if function is not used
Low battery detection output; connected to the open drain of a MOSFET; able to sink 1mA current
Soft-start; connects to a capacitor to control the start-up of the converter
Voltage feedback input; needs to connect to resistor divider to decide VO
Control circuit positive supply
Inductor drive pin; connected to the drain of internal N-channel power MOSFET
2

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