ISL97642 View Datasheet(PDF) - Intersil
Part Name
Description
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ISL97642 Datasheet PDF : 19 Pages
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ISL97642
Absolute Maximum Ratings (TA = +25°C)
IN, CTL to AGND . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to +6.5V
COMP, FB, FBP, FBN, DEL, REF to AGND. . . . . -0.3V to VIN+0.3V
PGND, BGND to AGND. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±0.3V
LX to PGND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to +24V
SUP to AGND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to +18V
DRVP, SRC to AGND . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to +36V
POS1, NEG1, OUT1, POS2, NEG2, OUT2, POS3, OUT3,
DRVN to AGND . . . . . . . . . . . . . . . . . . . . . . . VIN -20V to VIN +0.3V
COM, DRN to AGND . . . . . . . . . . . . . . . . . . . . -0.3V to VSRC +0.3V
LX Maximum Continuous RMS Output Current . . . . . . . . . . . . . 1.6A
OUT1, OUT2, OUT3, OUT4, OUT5
Maximum Continuous Output Current . . . . . . . . . . . . . . . . . . ±75mA
Thermal Information
Storage Temperature . . . . . . . . . . . . . . . . . . . . . . . .-65°C to +150°C
Maximum Continuous Junction Temperature . . . . . . . . . . . . +125°C
Power Dissipation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . See Curves
Operating Ambient Temperature . . . . . . . . . . . . . . . .-40°C to +85°C
Pb-free reflow profile . . . . . . . . . . . . . . . . . . . . . . . . . .see link below
http://www.intersil.com/pbfree/Pb-FreeReflow.asp
CAUTION: Do not operate at or near the maximum ratings listed for extended periods of time. Exposure to such conditions may adversely impact product reliability and
result in failures not covered by warranty.
IMPORTANT NOTE: All parameters having Min/Max specifications are guaranteed. Typical 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, VBOOST = VSUP = 12V, VSRC = 20V, Over-temperature from -40°C to +85°C.
Unless Otherwise Specified.
PARAMETER
DESCRIPTION
CONDITIONS
MIN
TYP
SUPPLY
VIN
VLOR
VLOF
IS
ISS
TFD
VREF
Input Supply Range
Undervoltage Lockout Threshold
Undervoltage Lockout Threshold
Quiescent Current
Quiescent Current - Switching
Fault Delay Time
Reference Voltage
VIN rising
VIN falling
LX not switching
LX switching
CDEL = 100nF
TA = +25°C
2.6
2.4
2.5
2.2
2.3
1.19
1.187
5
23
1.215
1.215
SHUTDN
Thermal Shutdown Temperature
140
MAIN BOOST REGULATOR
VBOOST
fOSC
DCM
VFBB
Output Voltage Range
Oscillator Frequency
Maximum Duty Cycle
Boost Feedback Voltage
(Note 1)
TA = +25°C
VIN+15%
1050
82
1.192
1.188
1200
85
1.205
1.205
VFTB
ΔVBOOST/ΔIBOOST
ΔVBOOST/ΔVIN
IFB
gmV
FB Fault Trip Level
Load Regulation
Line Regulation
Input Bias Current
FB Transconductance
Falling edge
0.85
50mA < ILOAD < 250mA
VIN = 2.6V to 5.5V
VFB = 1.35V
dI = ±2.5µA at COMP, FB = COMP
0.925
0.1
0.08
160
rONLX
ILEAKLX
ILIMLX
tSSB
LX ON-resistance
LX Leakage Current
LX Current Limit
Soft-Start Period
VFB = 1.35V, VLX = 13V
Duty cycle = 65% (Note 1)
CDEL = 100nF
150
200
0.02
2.4
2.8
7
MAX UNIT
5.5
V
2.6
V
2.4
V
2.5
mA
10
mA
ms
1.235
V
1.238
V
°C
18
1350
1.218
1.222
1.020
500
250
40
3.3
V
kHz
%
V
V
V
%
%/V
nA
µA/V
mΩ
µA
A
ms
3
FN6436.0
June 18, 2007
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