White LED 1x/1.5x Charge Pump
for Main and Sub-Displays
Typical Operating Characteristics (continued)
(V IN = 3.6V, ENM = ENS = IN, circuit of Figure 2, T A = +25 ° C, unless otherwise noted.)
OUTPUT CURRENT vs. SUPPLY VOLTAGE
123
122
121
DRIVING SIX LEDs AT 20mA EACH
100
LED CURRENT vs. R SET
V OUT
V IN
OPERATING WAVEFORMS (1x)
MAX1575 toc09
200mV/div
AC-COUPLED
50mV/div
AC-COUPLED
120
10
119
118
100% BRIGHTNESS SETTING
I IN
50mA/div
117
1
0mA
2.7
3.1
3.5
3.9
4.3
4.7
5.1
5.5
1
10
100
400ns/div
SUPPLY VOLTAGE (V)
R SET (k Ω )
OPERATING WAVEFORMS (1.5x)
MAX1575 toc10
STARTUP WAVEFORMS
MAX1575 toc11
MAIN STARTUP WITH SUB-DISPLAY ON
MAX1575 toc12
V OUT
200mV/div V ENM
AC-COUPLED AND V ENS
5V/div
V ENM
5V/div
V IN
50mV/div
AC-COUPLED
50mA/div
I IN
100mA/div
0
I IN
100mA/div
0
I IN
V OUT
2V/div
V OUT
500mV/div
0
0
400ns/div
DIMMING RESPONSE
MAX1575 toc13
1ms/div
LINE TRANSIENT 3.8V TO 3.3V TO 3.8V
MAX1575 toc14
1ms/div
V ENM
2V/div
V IN
1V/div
AND V ENS
1V/div
50mA/div
V OUT
AC-COUPLED
I OUT
0
50mA/div
I OUT
V OUT
10ms/div
2V/div
40 μ s/div
0mA
4
_______________________________________________________________________________________
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MAX1575ETE+T 功能描述:LED照明驱动器 White LED 1x/1.5x 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
MAX1575ETE-T 功能描述:LED照明驱动器 White LED 1x/1.5x 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
MAX1575EVKIT 功能描述:LED 照明开发工具 Evaluation Kit for the MAX1575 RoHS:否 制造商:Fairchild Semiconductor 产品:Evaluation Kits 用于:FL7732 核心: 电源电压:120V 系列: 封装:
MAX1576ETG 功能描述:LED照明驱动器 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
MAX1576ETG+ 功能描述:LED照明驱动器 White LED 1/1.5/2x 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
MAX1576ETG+T 功能描述:LED照明驱动器 White LED 1/1.5/2x 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
MAX1576ETG-T 功能描述:LED照明驱动器 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
MAX1576EVKIT 功能描述:LED 照明开发工具 Evaluation Kit for the MAX1576 RoHS:否 制造商:Fairchild Semiconductor 产品:Evaluation Kits 用于:FL7732 核心: 电源电压:120V 系列: 封装: