参数资料
| 型号： | EL7520ILZ-T7 |
| 厂商： | Intersil |
| 文件页数： | 2/18页 |
| 文件大小： | 0K |
| 描述： | IC CTRLR DC/DC 4-CHAN 20-QFN |
| 标准包装： | 1,000 |
| 应用： | 控制器，TFT LCD |
| 输入电压： | 3 V ~ 5.5 V |
| 输出数： | 4 |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 20-VFQFN 裸露焊盘 |
| 供应商设备封装： | 20-QFN 裸露焊盘（4x4） |
| 包装： | 带卷 (TR) |
EL7520, EL7520A
Absolute Maximum Ratings (T A = 25°C)
V DELB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25V
V DRVP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .36V
V DRVN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -20V
V DDP, V DD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6.5V
Thermal Information
Thermal Resistance (Typical, Notes 1, 2) θ JA (°C/W) θ JC (°C/W)
QFN Package. . . . . . . . . . . . . . . . . . . . 40 7.5
V DRVL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6.5V
Storage Temperature . . . . . . . . . . . . . . . . . . . . . . . .-65°C to +150°C
Ambient Operating Temperature . . . . . . . . . . . . . . . .-40°C to +85°C
Maximum Continuous Junction Temperature . . . . . . . . . . . . . 125°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.
NOTES:
1. θ JA is measured in free air with the component mounted on a high effective thermal conductivity test board with “direct attach” features. See
Tech Brief TB379.
2. For θ JC , the “case temp” location is the center of the exposed metal pad on the package underside.
IMPORTANT NOTE: All parameters having Min/Max specifications are guaranteed. Typ 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 DD = 5V, V BOOST = 11V, I LOAD = 40mA, V ON = 15V, V OFF = -5V, V LOGIC = 2.5V, over temperature from -
40°C to 85°C, unless otherwise specified.
PARAMETER
DESCRIPTION
CONDITION
MIN
TYP
MAX
UNIT
SUPPLY
V S
Supply Voltage
3
5.5
V
I S
F OSC
Quiescent Current
Oscillator Frequency
Enabled, LX not switching
Disabled, EL7520
Disabled, EL7520A
900
1.6
5
640
1000
2.5
30
800
1100
mA
μA
μA
kHz
BOOST
V REF
Reference Voltage
T A = 25°C
1.19
1.215
1.235
V
1.187
1.215
1.238
V
C REF
V REF Capacitor
100
nF
V FBB
Feedback Reference Voltage
T A = 25°C
1.192
1.205
1.218
V
1.188
1.205
1.222
V
V F_FBB
D MAX
Eff
FBB Fault Trip Point
Maximum Duty Cycle
Boost Efficiency
V FBB falling
Test with 24m ? R DS(ON) MOSFET,
I LOAD = 400mA
85
1
90
V
%
%
I(V REF )
? V BOOST /
? V IN
? V BOOST /
? I BOOST
? V BOOST /
? I BOOST
V CINT_T
Feedback Input Bias Current
Line Regulation
Load Regulation - “P” Mode
Load Regulation - “PI” Mode
CINT Pl Mode Select Threshold
PI mode, V FBB = 1.35V
C INT = 2.2nF, I OUT = 200mA
V IN = 3V to 5.5V
C INT pin strapped to V DD
I OUT = 10mA to 200mA
50
0.05
3
0.1
4.7
500
4.8
nA
%/V
%
%
V
V ON LDO
V FBP
V F_FBP
I FBP
GMP
FBP Regulation Voltage
FBP Fault Trip Point
FBP Input Bias Current
FBP Effective Transconductance
I DRVP = 0.2mA, T A = 25°C
I DRVP = 0.2mA
V FBP falling
V FBP = 1.35V
V DRVP = 25V, I DRVP = 0.2 to 2mA
1.181
1.177
0.95
-250
1.211
1.211
1
50
1.229
1.233
1.05
250
V
V
V
nA
mS
2
FN7318.0
July 12, 2005
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