AAT3143ITP-T1

更新时间： 2024-02-15 21:00:11

品牌	Logo	应用领域
ANALOGICTECH		泵
页数	文件大小	规格书
11页	478K
描述
High Efficiency 1X/1.5X/2X Charge Pump with PWM Control for White LED Applications

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数据手册

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AAT3143ITP-T1 数据手册

AAT3143

High Efficiency 1X/1.5X/2X Charge Pump with

PWM Control for White LED Applications

Typical Characteristics

V_IN= 3.5V, C_IN= C_CP= C₁= C₂= 1µF, T_A= 25°C, unless otherwise noted.

1.5X Mode PWM Characteristic

(5kHz at 50% Duty Cycle)

PWM Duty Cycle vs. LED Current

V_EN

(2V/div)

100Hz

1kHz

10kHz

I_LED

(20mA/div)

I_IN

(100mA/div)

V_LED

(2V/div)

100

Time (50µs/div)

Duty Cycle (%)

Line Response

(1X Mode, 4x19mA Load)

Line Response

(1.5X Mode, 4x19mA Load)

V_IN

(0.5V/div)

V_IN

(0.5V/div)

V_LED

(20mV/div)

V_LED

(20mV/div)

V_CP

(0.5V/div)

V_CP

(0.5V/div)

I_D

(10mA/div)

I_D

(10mA/div)

Time (1ms/div)

Input Current vs. Input Voltage

(4x10mA)

Load Characteristics

(1.5X Mode, 4x15mA Load)

V_F

(20mV/div)

V_DIODE= 3.4V

I_IN

(10mA/div)

V_CP

(20mV/div)

V_DIODE= 3.0V

2.7

3.1

3.5

3.9

4.3

4.7

5.1

5.5

TIme (1µs/div)

Input Voltage (V)

3143.2006.05.1.0

1...3 4 567 8 9...11

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