參數資料
型號： EL7642ILTZ-T7
廠商： INTERSIL CORP
元件分類： 穩(wěn)壓器
英文描述： TFT-LCD DC/DC with Integrated Amplifiers
中文描述： 3 A SWITCHING REGULATOR, 1350 kHz SWITCHING FREQ-MAX, QCC32
封裝： 5 X 5 MM, ROHS COMPLIANT, MO-220, TQFN-32
文件頁數： 3/19頁
文件大?。?/td> 493K
代理商： EL7642ILTZ-T7
3
FN7415.1
September 26, 2005
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
V
IN
= 3V, V
BOOST
= V
SUP
= 12V, V
SRC
= 20V, Over temperature from -40°C to 85°C.
Unless Otherwise Specified.
PARAMETER
DESCRIPTION
CONDITIONS
MIN
TYP
MAX
UNIT
SUPPLY
V
IN
Input Supply Range
2.6
5.5
V
V
LOR
Undervoltage Lockout Threshold
V
IN
rising
2.4
2.5
2.6
V
V
LOF
Undervoltage Lockout Threshold
V
IN
falling
2.2
2.3
2.4
V
I
S
Quiescent Current
LX not switching
2.5
mA
I
SS
Quiescent Current - Switching
LX switching
5
10
mA
T
FD
Fault Delay Time
C
DEL
= 220nF
52
ms
V
REF
Reference Voltage
T
A
= 25°C
1.19
1.215
1.235
V
1.187
1.215
1.238
V
SHUTDN
Thermal Shutdown Temperature
140
°C
MAIN BOOST REGULATOR
V
BOOST
Output Voltage Range
(Note 1)
V
IN
+
15%
18
V
F
OSC
Oscillator Frequency
1050
1200
1350
kHz
D
CM
Maximum Duty Cycle
82
85
%
V
FBB
Boost Feedback Voltage
T
A
= 25°C
1.192
1.205
1.218
V
1.188
1.205
1.222
V
V
FTB
FB Fault Trip Level
Falling edge
0.85
0.925
1.020
V
V
BOOST
/
I
BOOST
Load Regulation
50mA < I
LOAD
< 250mA
0.1
%
V
BOOST
/
V
IN
Line Regulation
V
IN
= 2.6V to 5.5V
0.08
%/V
I
FB
Input Bias Current
V
FB
= 1.35V
500
nA
gmV
FB Transconductance
dI = ±2.5μA at COMP, FB = COMP
160
μA/V
R
ON
LX
LX On Resistance
160
m
I
LEAK
LX
LX Leakage Current
V
FB
= 1.35V, V
LX
= 13V
0.02
40
μA
I
LIM
LX
LX Current Limit
Duty cycle = 65% (Note 1)
3.0
A
t
SS
B
Soft-Start Period
C
DEL
= 220nF
2
ms
EL7640, EL7641, EL7642
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