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参数资料
型号： MAX1577Y
厂商： Maxim Integrated Products, Inc.
英文描述： CAP 10UF 50V ELECT TG SMD
中文描述： 1.2A白光LED调节电荷泵，用于相机闪光灯和放映灯
文件页数： 2/11页
文件大小： 664K
代理商： MAX1577Y
M
1.2A White LED Regulating Charge Pump for
Camera Flashes and Movie Lights
2
_______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
IN, OUT, EN1, EN2 to GND...................................-0.3V to +6.0V
OUT to GND During Shutdown....................-0.3V to (V
IN
+ 0.3V)
OUT to CS .............................................................-0.6V to +0.6V
CS to GND................................................-0.3V to (V
OUT
+ 0.3V)
CN to GND...................................................-0.3V to (V
IN
+ 0.3V)
CP to GND .....-0.3V to the Greater of (V
OUT
+ 1V) or (V
IN
+ 1V)
OUT Short Circuit to GND..........................................Continuous
ELECTRICAL CHARACTERISTICS
(V
IN
= 3.6V, circuit of Figure 2, EN1 = EN2 = IN, R
CS
= 60
, C
IN
= 4.7μF, C1 = 2.2μF, C
OUT
= 10μF, T
A
= -40°C to +85°C, unless
otherwise noted. Typical values are at T
A
= +25°C.) (Note 1)
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
Continuous Power Dissipation (T
A
= +70°C)
8-Pin TDFN (derate 18.2mW/°C above +70°C) ..........1455mW
Operating Temperature Range ...........................-40°C to +85°C
Junction Temperature......................................................+150°C
Storage Temperature Range.............................-65°C to +150°C
Lead Temperature (soldering, 10s).................................+300°C
PARAMETER
CONDITIONS
MIN
2.7
2.3
TYP
MAX
5.5
2.6
UNITS
V
V
mV
IN Operating Voltage
Undervoltage-Lockout Threshold
Undervoltage-Lockout Hysteresis
V
IN
rising
2.45
35
5
0.225
0.01
0.2
0.5
5.3
1MHz switching, no load
1x LDO mode, no switching
Supply Current
0.3
1
mA
T
A
= +25
°
C
T
A
= +85
°
C
Shutdown Supply Current
EN1 = EN2 = GND
μA
Soft-Start Time
OUT Overvoltage Protection
ms
V
MAX1577Z, T
A
= +25
°
C,
I
OUT
= 100mA
EN1 or EN2 = IN
4.95
5.10
5.25
EN1 = GND, EN2 = IN
EN1 = IN, EN2 = GND
EN1 = EN2 = IN
3.17
4.40
4.95
3.40
4.60
5.10
3.60
4.80
5.25
OUT Voltage Regulation Mode
MAX1577Y, T
A
= +25
°
C,
I
OUT
= 100mA
V
CS Voltage-Mode Threshold
(V
OUT
- V
CS
)
24
mV
EN1 = GND, EN2 = IN
EN1 = IN, EN2 = GND
EN1 = EN2 = IN
T
A
= +25
°
C
V
IN
= 2.7V to 5.5V, TA = -40
°
C to +85
°
C
60
100
300
±0.5
CS Regulation Voltage
(V
OUT
- V
CS
)
mV
-2
-3
600
800
+2
+3
CS Threshold Accuracy
%
V
IN
= 3.1V
V
IN
= 3.4V
900
1200
0.6
2
Maximum OUT Current
V
LED
= 4.1V, EN1 = EN2 = IN
mA
1x LDO mode
2x mode, V
IN
= 3.4V
Open-Loop OUT Resistance
3
OUT Internal Pulldown in
Shutdown
EN1 = EN2 = GND
5
k
Switching Frequency
0.80
1.0
1.25
MHz
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相关代理商/技术参数
参数描述
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MAX1577YETA+T 功能描述:LED照明驱动器 1.2A White LED Charge Pump RoHS:否 制造商:STMicroelectronics 输入电压:11.5 V to 23 V 工作频率: 最大电源电流:1.7 mA 输出电流: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:SO-16N
MAX1577YETA-T 功能描述:LED照明驱动器 1.2A White LED Charge Pump RoHS:否 制造商:STMicroelectronics 输入电压:11.5 V to 23 V 工作频率: 最大电源电流:1.7 mA 输出电流: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:SO-16N
MAX1577ZETA 制造商:Maxim Integrated Products 功能描述:1.1A WHITE LED REGULATING CHARGE PUMP FOR CAM - Bulk
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