参数资料
| 型号： | EL7642AILTZ |
| 厂商： | Intersil |
| 文件页数： | 3/19页 |
| 文件大小： | 0K |
| 描述： | IC CONV DC/DC TFT-LCD 32-QFN |
| 标准包装： | 72 |
| 应用： | 转换器，TFT，LCD |
| 输入电压： | 2.6 V ~ 5.5 V |
| 输出数： | 7 |
| 输出电压： | 5.5 V ~ 20 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 32-WFQFN 裸露焊盘 |
| 供应商设备封装： | 32-TQFN-EP（5x5） |
| 包装： | 散装 |
EL7640A, EL7641A, EL7642A
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
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
DRVN to AGND . . . . . . . . . . . . . . . . . . . . . . . V IN -20V to V IN +0.3V
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
V LOF
I S
I SS
T FD
V REF
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 = 100nF
T A = 25°C
2.4
2.2
1.19
2.5
2.3
5
23
1.215
2.6
2.4
2.5
10
1.235
V
V
mA
mA
ms
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 +
18
V
15%
F OSC
D CM
Oscillator Frequency
Maximum Duty Cycle
1050
82
1200
85
1350
kHz
%
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
? V BOOST /
? V IN
I FB
gmV
R ON LX
Load Regulation
Line Regulation
Input Bias Current
FB Transconductance
LX On Resistance
50mA < I LOAD < 250mA
V IN = 2.6V to 5.5V
V FB = 1.35V
dI = ±2.5μA at COMP, FB = COMP
0.1
0.08
160
160
500
%
%/V
nA
μA/V
m ?
I LEAK LX
I LIM LX
t SS B
LX Leakage Current
LX Current Limit
Soft-Start Period
V FB = 1.35V, V LX = 13V
Duty cycle = 65% (Note 1)
C DEL = 100nF
0.02
3.0
7
40
μA
A
ms
3
FN6270.0
May 15, 2006
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