Datasheet > ADM8845ACPZ-WP1

ADM8845ACPZ-WP1

更新时间： 2022-04-23 23:00:11

品牌	Logo	应用领域
亚德诺 - ADI		驱动器泵
页数	文件大小	规格书
20页	372K
描述
Charge Pump Driver for LCD White LED Backlights

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数据手册

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ADM8845ACPZ-WP1 数据手册

ADM8845

TYPICAL PERFORMANCE CHARACTERISTICS

0.4

0.3

MAX POSITIVE MATCHING ERROR

0.2

0.1

–0.1

–0.2

–0.3

–0.4

MAX NEGATIVE MATCHING ERROR

4.75

6.75

8.75

10.75

(kΩ)

12.75

14.75

2.6

3.0

3.4

3.8

4.2

4.6

5.0

5.4

SUPPLY VOLTAGE (V)

SET

Figure 6. I_LED(mA) Matching Error (%) vs. Supply Voltage (V),

_A= 25°C and I_LED= 20 mA

Figure 3. I_LED(mA) Current vs. R_SET

20.35

20.30

20.25

20.20

20.15

20.10

20.05

20.00

20.24

20.22

20.20

20.18

20.16

20.14

20.12

20.10

20.08

–40°C

25°C

85°C

2.6

3.1

3.6

4.1

4.6

5.1

5.6

–40

SUPPLY VOLTAGE (kΩ)

TEMPERATURE (°C)

Figure 4. I_LED(mA) vs. Temperature (°C), Six LEDs Enabled

Figure 7. I_LED(mA) Variation over Temperature (°C), V_CC= 3.6 V

0.3

0.2

0.1

–0.1

–0.2

–0.3

–40

–20

2.6

3.0

3.4

3.8

4.2

4.6

5.0

5.4

TEMPERATURE (°C)

SUPPLY VOLTAGE (V)

Figure 5. I_LEDMatching (%) over Temperature (°C), V_CC= 3.6 V, I_LED= 20 mA,

Six LEDs Enabled

Figure 8. I_LED(mA) vs. Supply Voltage (V)

Rev. 0 | Page 6 of 20

1...3 4 567 8 9...20

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