参数资料
型号: MX841BE
厂商: IXYS
文件页数: 2/6页
文件大小: 0K
描述: IC CONVERTER WHITE LED 8-SOIC
标准包装: 100
拓扑: 升压(升压)
输出数: 1
内部驱动器:
类型 - 主要: 车载,背光
类型 - 次要: 白色 LED
频率: 600kHz ~ 1.3MHz
电源电压: 1.1 V ~ 5.5 V
输出电压: 20V
安装类型: 表面贴装
封装/外壳: 8-SOIC(0.154",3.90mm 宽)
供应商设备封装: 8-SOIC
包装: 管件
工作温度: -40°C ~ 85°C
MX841
Absolute Maximum Ratings (Voltages with respect to GND=0V)
IXYS
Parameter
V DD Supply Voltage
CTRL Voltage
I SENSE Voltage
SW Voltage
OVD Voltage
Operating Ambient Temperature Range
Min
-0.4
G ND -0.4
G ND -0.4
-0.4
-0.4
-40
Max
+6.5
V DD +0.4
V DD +0.4
+24.0
+24.0
+85
Unit
V
V
V
V
V
C o
Absolute Maximum Ratings are
stress ratings. Stresses in excess of
these ratings can cause permanent
damage to the device. Functional
operation of the device at these or
any other conditions beyond those
indicated in the operational sections
of this data sheet is not implied.
Exposure of the device to the
Storage Temperature Range -55
Operating Junction Temperature Range -40
Power Dissipation Standard SOIC θ JA = 114°C/W
+150
+125
775
C o
C o
mW
absolute maximum ratings for an
extended period may degrade the
device and affect its reliability.
T A = 27°C
Exposed Pad SOIC θ JA = 50°C/W
1.75
W
ESD Warning
ESD (electrostatic discharge) sensitive device. Although the MX841 features proprietary ESD protection circuitry,
permanent damage may be sustained if subjected to high energy electrostatic discharges. Proper ESD precautions
are recommended to avoid performance degradation or loss of functionality.
DC Electrical Characteristics
V DD =3.0V, R SENSE =5 ? , V CTRL =1.0V, L=6.8μH, C BYP =1μF, T A = -40 o C to +85 o C, Typical Values at +25 o C
Unless otherwise specified
Parameter
Condition
Min
Typ
Max
Unit
T A = 25 C
T A = +25 o C
T A = +85 o C
Supply Voltage
Supply Current Overvoltage
Supply Current Operating
Sleep Current
CTRL Bias Current
I SENSE Bias Current
o
Not Switching: V CTRL = 260mV
V RSENSE > 13 X V CTRL
Switching: V CTRL = V DD, V RSENSE =GND
V CTRL < 100mV
1.1
-10
0.5
6
7
-7
5.5
0.8
2
V
mA
μA
μA
μA
μA
OVD Bias Current
Over Voltage Threshold
CTRL / V RSENSE
V CTRL Sleep Mode
SW On Resistance
Switch Current
OVD = 18V
OVD Rising
OVD Falling
V CTRL Rising
V CTRL Falling
V SW = 0.1V
V SW = 0.5V
V DD =1.2V, L=33μH
V DD =5.5V, L=2.5μH
V CTRL >260mV
V CTRL = GND
18.5
20
0
13
260
100
1.9
2.2
30
2
22
μA
V
V
V/V
mV
mV
?
?
mA
A
SW Voltage Range
SW Leakage Current
OVD = V SW = 18V
T A = +25 o C
T A = +85 o C
V DD -
V SCHOTTKY
0.1
0.3
20
V
μA
μA
V CTRL
0
V DD
V
MX841
Drawing No. 17023
2
Preliminary
03/10/05
www.ixys.net
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