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EL7581 Datasheet(PDF) 3 Page - Intersil Corporation

Part No. EL7581
Description  3-Channel DC/DC Converter
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Maker  INTERSIL [Intersil Corporation]
Homepage  http://www.intersil.com/cda/home
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EL7581 Datasheet(HTML) 3 Page - Intersil Corporation

 
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3
NEGATIVE REGULATED CHARGE PUMP (VOFF)
Most negative VOFF output depends on the magnitude of the VDDN input voltage (normally connected to VBOOST) and the external component
configuration (doubler or tripler)
VDDN
Supply Input for Negative Charge Pump
Usually connected to VBOOST output
5
17
V
IQ1(VDDN)
Quiescent Current - Shut-down
ENBN = 0V
1.2
10
µA
IQ2(VDDN)
Quiescent Current - Switching
ENBN = VDDB
2.3
5
mA
V(FBN)
Feedback Reference Voltage
-80
0
+80
mV
I(FBN)
Feedback Input Bias Current
Magnitude of input bias
0.1
µA
I(DRVN)
RMS DRVN Output Current
VDDN = 12V
60
mA
VDDN = 6V
15
mA
ILR_VOFF
Load Regulation
-15mA < IL < -5mA
-0.5
0.03
0.5
%/mA
FPUMP
Charge Pump Frequency
Frequency set by ROSC - see boost section
0.5*FOSC
ENABLE CONTROL LOGIC
VHI-ENX
Enable Input High Threshold
X = “BN”, “P”
1.4
V
VLO-ENX
Enable Input Low Threshold
X = “BN”, “P”
0.6
V
IL(EN”X”)
Logic Low Bias Current
X = “BN”, “P” = 0V
0.1
µA
IL(ENBN)
Logic High Bias Current
ENBN = 5V
7.5
15
µA
IL(ENP)
Logic High Bias Current
ENP = 5V
3.3
7.5
µA
OVER-TEMPERATURE PROTECTION
TOT
Over-temperature Threshold
130
°C
THYS
Over-temperature Hysteresis
40
°C
Electrical Specifications
VIN = 3.3V, VBOOST = 12V, ROSC = 100kΩ, TA = 25°C Unless Otherwise Specified. (Continued)
PARAMETER
DESCRIPTION
CONDITIONS
MIN
TYP
MAX
UNIT
EL7581


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