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参数资料
| 型号： | MAX1577ZETA |
| 厂商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分类： | 稳压器 |
| 英文描述： | 1.2A White LED Regulating Charge Pump for Camera Flashes and Movie Lights |
| 中文描述： | SWITCHED CAPACITOR REGULATOR, 1250 kHz SWITCHING FREQ-MAX, DSO8 |
| 封装： | 3 X 3 MM, 0.8 MM HEIGHT, MO-229, TDFN-8 |
| 文件页数： | 4/11页 |
| 文件大小： | 664K |
| 代理商： | MAX1577ZETA |
M
1.2A White LED Regulating Charge Pump for
Camera Flashes and Movie Lights
4
_______________________________________________________________________________________
LED CURRENT vs. TEMPERATURE
M
TEMPERATURE (
°
C)
L
60
35
10
-15
205
210
215
220
225
200
-40
85
R
= 0.27
EN1 LOW
EN2 HIGH
LED CURRENT vs. R
CS
M
R
CS
(
)
L
0.8
0.6
0.4
0.2
0.4
0.6
0.8
1.0
1.2
0
0.2
1.0
EN1 AND EN2 HIGH
EN1 HIGH, EN2 LOW
EN1 LOW, EN2 HIGH
TYPICAL OPERATING WAVEFORMS
IN 1x MODE
MAX1577 toc09
400ns/div
V
IN
V
OUT
V
CS
50mV/div
(AC-COUPLED)
50mV/div
(AC-COUPLED)
50mV/div
(AC-COUPLED)
TYPICAL OPERATING WAVEFORMS
IN 2x MODE
MAX1577 toc10
400ns/div
V
IN
V
OUT
V
CS
50mV/div
(AC-COUPLED)
50mV/div
(AC-COUPLED)
50mV/div
(AC-COUPLED)
STARTUP AND SHUTDOWN RESPONSE
MAX1577 toc11
400
μ
s/div
V
EN1,
V
EN2
V
LED
I
LED
2V/div
2V/div
0V
0mA
500mA/div
LED CURRENT vs. PWM DUTY CYCLE
M
DUTY CYCLE (%)
L
80
60
40
20
200
400
600
800
1000
1200
0
0
100
R
= 0.27
EN1 PWM
EN2 HIGH
EFFICIENCY vs. SUPPLY VOLTAGE
WITH PWM DIMMING
M
SUPPLY VOLTAGE (V)
E
5.1
4.7
4.3
3.9
3.5
3.1
30
20
10
40
50
60
70
80
0
2.7
5.5
25%
50%
75%
R
= 0.27
EN1 PWM
EN2 HIGH
DIMMING RESPONSE
MAX1577 toc14
100
μ
s/div
V
EN1
V
LED
I
LED
2V/div
2V/div
0V
0mA
500mA/div
Typical Operating Characteristics (continued)
(V
IN
= 3.6V, circuit of Figure 2, R
CS
= 0.27
, Luxeon LXCL-PWF1 LED, T
A
= +25
°
C, unless otherwise noted.)
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX1577ZETA+ | 制造商:Maxim Integrated Products 功能描述:CHG PUMP STPUP/STPDN 5.1V 1200MA 8TDFN EP - Rail/Tube |
| MAX1577ZETA+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-T | 功能描述:电荷泵 RoHS:否 制造商:Maxim Integrated 功能:Inverting, Step Up 输出电压:- 1.5 V to - 5.5 V, 3 V to 11 V 输出电流:100 mA 电源电流:1 mA 最大工作温度:+ 70 C 封装 / 箱体:SOIC-8 Narrow 封装:Tube |
| MAX1577ZEVKIT | 功能描述:电荷泵 Evaluation Kit for the MAX1577Y MAX1577Z RoHS:否 制造商:Maxim Integrated 功能:Inverting, Step Up 输出电压:- 1.5 V to - 5.5 V, 3 V to 11 V 输出电流:100 mA 电源电流:1 mA 最大工作温度:+ 70 C 封装 / 箱体:SOIC-8 Narrow 封装:Tube |
| MAX1578ETG | 功能描述:LED照明驱动器 Cmplete Bias & White LED Power Supply 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 |
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