EL7513 データシートの表示（PDF） - Intersil
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EL7513 Datasheet PDF : 12 Pages
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EL7513
Absolute Maximum Ratings (TA = 25°C)
COMP, CNTL, CS to SGND. . . . . . . . . . . . . . . . . . . . . . -0.3V to +6V
VIN to SGND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .+14V
VOUT to SGND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .+19V
LX to PGND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .+20V
SGND to PGND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to +0.3V
Storage Temperature . . . . . . . . . . . . . . . . . . . . . . . .-65°C to +150°C
Ambient Operating 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. This part is ESD sensitive. Handle with care.
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 = 3V, VO = 12V, C1 = 4.7µF, L = 33µH, C2 = 1µF, C3 = 0.1µF, R1 = 5Ω, TA = 25°C,
Unless Otherwise Specified
PARAMETER
DESCRIPTION
CONDITIONS
MIN TYP MAX UNIT
VIN
Input Voltage
IQ1
Total Input Current at Shut-down
IQ1
Quiescent Supply Current at VO Pin
ICOMP
COMP Pin Pull-up Current
VCOMP
COMP Voltage Swing
ICNTL
CNTL Shut-down Current
VCNTL1
Chip Enable Voltage
VCNTL2
Chip Disable Voltage
IOUT_ACCURACY VCNTL = 1V
VOUT1
Over-voltage Threshold
VOUT2
Over-voltage Threshold
ILX
MOSFET Current Limit
VCNTL = 0V
VCNTL = 1V, load disconnected
COMP connected to SGND
CNTL = 0V
VCNTL = 1V
VOUT rising
VOUT falling, with resistive load
2.6
13.2
V
1
µA
1
1.5
mA
11
20
µA
0.5
1.5
2.5
V
1
µA
240
mV
100
mV
14
15
16
mA
17
18
19
V
15
16
17.5
V
500
mA
RDS_ON
ILEAK
FS
DMAX
ICS
∆IO/∆VIN
MOSFET On-resistance
MOSFET Leakage Current
Switching Frequency
Maximum Duty Ratio
CS Input Bias Current
Line Regulation
VCNTL = 0V, VLX = 12V
VCNTL = 2V, IS = 0
VIN = 2.6V - 5.5V
0.7
Ω
1
µA
800 1000 1200 kHz
85
90
%
1
µA
0.03
%/V
Pin Descriptions
8 LD TSOT
1
2
3
8 LD MSOP
7
8
5
PIN NAME
DESCRIPTION
COMP
Compensation pin. A compensation cap (4700pF to 1µF) is normally connected between this pin and
SGND.
CNTL
Control pin for dimming and shut-down. A voltage between 250mV and 5.5V controls the brightness,
and less than 100mV shuts down the converter.
VOUT Output voltage sense. Use for over voltage protection.
4
6
LX
Inductor connection pin. The drain of internal MOSFET.
5
3
PGND Power Ground pin. The source of internal MOSFET.
6
4
SGND Signal Ground. Ground pin for internal control circuitry. Needs to connect to PGND at only one point.
7
1
CS
Current sense pin. Connect to sensing resistor to set the LED bias current.
8
2
VIN
Power supply for internal control circuitry.
3
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