el7641 Intersil Corporation, el7641 Datasheet - Page 3

• Manufacturer Part Number: el7641
• Description: Tft-lcd Dc/dc With Integrated Amplifiers
• Manufacturer: Intersil Corporation

Absolute Maximum Ratings
IN, CTL to AGND . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to +6.5V
COMP, FB, FBP, FBN, DEL, REF to AGND. . . . . -0.3V to V
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
DRVN to AGND . . . . . . . . . . . . . . . . . . . . . . . V
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
Electrical Specifications
SUPPLY
V
V
V
I
I
T
V
SHUTDN
MAIN BOOST REGULATOR
V
F
D
V
V
∆V
∆I
∆V
∆V
I
gmV
R
I
I
t
S
SS
FB
LEAK
LIM
SS
PARAMETER
FD
OSC
IN
LOR
LOF
REF
BOOST
CM
FBB
FTB
ON
BOOST
BOOST
BOOST
IN
B
LX
LX
LX
/
/
Input Supply Range
Undervoltage Lockout Threshold
Undervoltage Lockout Threshold
Quiescent Current
Quiescent Current - Switching
Fault Delay Time
Reference Voltage
Thermal Shutdown Temperature
Output Voltage Range
Oscillator Frequency
Maximum Duty Cycle
Boost Feedback Voltage
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
DESCRIPTION
3
V
Unless Otherwise Specified.
IN
(T
A
= 3V, V
= 25°C)
BOOST
IN
-20V to V
EL7640, EL7641, EL7642
= V
J
SUP
SUP
= T
IN
IN
V
V
LX not switching
LX switching
C
T
(Note 1)
T
Falling edge
50mA < I
V
V
dI = ±2.5µA at COMP, FB = COMP
V
Duty cycle = 65% (Note 1)
C
+0.3V
+0.3V
+0.3V
C
A
A
IN
IN
IN
FB
FB
= 12V, V
DEL
DEL
= T
= 25°C
= 25°C
rising
falling
= 2.6V to 5.5V
= 1.35V
= 1.35V, V
A
= 220nF
= 220nF
LOAD
SRC
= 20V, Over temperature from -40°C to 85°C.
CONDITIONS
< 250mA
LX
COM, DRN to AGND . . . . . . . . . . . . . . . . . . . . -0.3V to V
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
= 13V
1.187
1.192
1.188
1050
V
15%
1.19
0.85
MIN
2.6
2.4
2.2
82
IN
+
1.215
1.215
1.205
1.205
0.925
1200
TYP
0.08
0.02
140
160
160
2.5
2.3
0.1
3.0
52
85
5
2
1.235
1.238
1.218
1.222
1.020
MAX
1350
500
5.5
2.6
2.4
2.5
10
18
40
February 22, 2006
SRC
FN7415.2
UNIT
µA/V
kHz
%/V
mΩ
mA
mA
ms
ms
°C
nA
µA
+0.3V
%
%
V
V
V
V
V
V
V
A
V
V