EL7640, EL7641, EL7642
Absolute Maximum Ratings
(T
A
= 25°C)
IN, CTL to AGND . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to +6.5V
COMP, FB, FBP, FBN, DEL, REF to AGND. . . . . -0.3V to V
IN
+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,
POS4, NEG4, OUT4, POS5, OUT5 to AGND . . -0.3V to V
SUP
+0.3V
DRVN to AGND . . . . . . . . . . . . . . . . . . . . . . . V
IN
-20V to V
IN
+0.3V
COM, DRN to AGND . . . . . . . . . . . . . . . . . . . . -0.3V to V
SRC
+0.3V
LX Maximum Continuous RMS Output Current. . . . . . . . . . . . . 1.6A
OUT1, OUT2, OUT3, OUT4, OUT5
Maximum Continuous Output Current . . . . . . . . . . . . . . . . . . ±75mA
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
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. Typical values are for information purposes only. Unless otherwise noted, all tests
are at the specified temperature and are pulsed tests, therefore: T
J
= T
C
= T
A
Electrical Specifications
PARAMETER
SUPPLY
V
IN
V
LOR
V
LOF
I
S
I
SS
T
FD
V
REF
V
IN
= 3V, V
BOOST
= V
SUP
= 12V, V
SRC
= 20V, Over temperature from -40°C to 85°C.
Unless Otherwise Specified.
CONDITIONS
MIN
TYP
MAX
UNIT
DESCRIPTION
Input Supply Range
Undervoltage Lockout Threshold
Undervoltage Lockout Threshold
Quiescent Current
Quiescent Current - Switching
Fault Delay Time
Reference Voltage
V
IN
rising
V
IN
falling
LX not switching
LX switching
C
DEL
= 220nF
T
A
= 25°C
2.6
2.4
2.2
2.5
2.3
5.5
2.6
2.4
2.5
5
52
10
V
V
V
mA
mA
ms
1.19
1.187
1.215
1.215
140
1.235
1.238
V
V
°C
SHUTDN
Thermal Shutdown Temperature
MAIN BOOST REGULATOR
V
BOOST
F
OSC
D
CM
V
FBB
Output Voltage Range
Oscillator Frequency
Maximum Duty Cycle
Boost Feedback Voltage
T
A
= 25°C
(Note 1)
V
IN
+
15%
1050
82
1.192
1.188
V
FTB
∆V
BOOST
/
∆I
BOOST
∆V
BOOST
/
∆V
IN
I
FB
gmV
R
ON
LX
I
LEAK
LX
I
LIM
LX
t
SS
B
FB Fault Trip Level
Load Regulation
Line Regulation
Input Bias Current
FB Transconductance
LX On Resistance
LX Leakage Current
LX Current Limit
Soft-Start Period
V
FB
= 1.35V, V
LX
= 13V
Duty cycle = 65% (Note 1)
C
DEL
= 220nF
Falling edge
50mA < I
LOAD
< 250mA
V
IN
= 2.6V to 5.5V
V
FB
= 1.35V
dI = ±2.5µA at COMP, FB = COMP
160
160
0.02
3.0
2
40
0.85
1200
85
1.205
1.205
0.925
0.1
0.08
500
1.218
1.222
1.020
18
1350
V
kHz
%
V
V
V
%
%/V
nA
µA/V
mΩ
µA
A
ms
3
FN7415.1
September 26, 2005
INTERSIL [ INTERSIL CORPORATION ]
