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參數(shù)資料
| 型號： | MAX1577Y |
| 廠商： | Maxim Integrated Products, Inc. |
| 英文描述： | CAP 10UF 50V ELECT TG SMD |
| 中文描述： | 1.2A白光LED調(diào)節(jié)電荷泵，用于相機(jī)閃光燈和放映燈 |
| 文件頁數(shù)： | 2/11頁 |
| 文件大?。?/td> | 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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| MAX1577YETA-T | 功能描述:LED照明驅(qū)動器 1.2A White LED Charge Pump RoHS:否 制造商:STMicroelectronics 輸入電壓:11.5 V to 23 V 工作頻率: 最大電源電流:1.7 mA 輸出電流: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體: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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