- 您現在的位置：買賣IC網 > PDF目錄374016 > ADM8845 (Analog Devices, Inc.) Charge Pump Driver for LCD White LED Backlights PDF資料下載
參數資料
| 型號： | ADM8845 |
| 廠商： | Analog Devices, Inc. |
| 英文描述： | Charge Pump Driver for LCD White LED Backlights |
| 中文描述： | 電荷泵驅動器的液晶顯示白色LED背光源 |
| 文件頁數： | 7/18頁 |
| 文件大小： | 341K |
| 代理商： | ADM8845 |
Preliminary Technical Data
ADM8845
Rev. PrJ 06/04| Page 7 of 18
0
4
8
12
16
20
0
20
40
60
80
100
Duty Cycle (%)
L
Figure 10. LED Current (mA) vs. PWM Dimming (varying Duty Cycle),
6 LEDs enabled, Freq = 1kHz.
0
50
100
150
200
250
300
2.6
3
3.4
3.8
4.2
4.6
5
5.4
Supply Voltage (V)
S
20mA/LED
15mA/LED
Figure 12. Input Current vs. Supply Voltage, with 6 LEDs enabled
Figure 14. 1.5x Mode Operating Waveforms
60
65
70
75
80
85
90
95
0
10
20
30
40
50
60
70
80
90
100
Duty Cycle (%)
E
Figure 11. LED Efficiency vs. Varying Duty Cycle of 1kHz PWM signal,
with 6 LEDs enabled, 20mA/LED.
2.00 V
1.00 V
160 mA
18.0 mV
Figure 13. Softstart showing the initial in-rush current and Vout
variation with 6 LEDs @ 20mA/LED, V
CC
= 3.6V
Figure 15. 2x Mode Operating Waveforms
相關PDF資料 |
PDF描述 |
|---|---|
| ADM8845ACP | Charge Pump Driver for LCD White LED Backlights |
| ADM8845ACP-REEL7 | Charge Pump Driver for LCD White LED Backlights |
| ADM8845ACPZ | Charge Pump Driver for LCD White LED Backlights |
| ADM8845ACPZ-REEL7 | 20-21 (9 Contact) Pin Insert; For Use With:Amphenol MIL-C-5015 97 Series Circular Connectors; No. of Contacts:9; Gender:Male; Operating Voltage:700V |
| ADM9240 | Low Cost Microprocessor System Hardware Monitor |
相關代理商/技術參數 |
參數描述 |
|---|---|
| ADM8845ACP | 制造商:Analog Devices 功能描述:CHG PUMP STPUP 30MA 16LFCSP - Bulk |
| ADM8845ACP-REEL | 制造商:Analog Devices 功能描述:Charge Pump STPUP 30mA 16-Pin LFCSP EP T/R |
| ADM8845ACP-REEL7 | 制造商:Analog Devices 功能描述:Charge Pump STPUP 30mA 16-Pin LFCSP EP T/R |
| ADM8845ACPZ | 制造商:AD 制造商全稱:Analog Devices 功能描述:Charge Pump Driver for LCD White LED Backlights |
| ADM8845ACPZ-REEL | 功能描述:IC LED DRVR WHITE BCKLGT 16LFCSP RoHS:是 類別:集成電路 (IC) >> PMIC - LED 驅動器 系列:- 標準包裝:6,000 系列:- 恒定電流:- 恒定電壓:- 拓撲:開路漏極，PWM 輸出數:4 內部驅動器:是 類型 - 主要:LED 閃爍器 類型 - 次要:- 頻率:400kHz 電源電壓:2.3 V ~ 5.5 V 輸出電壓:- 安裝類型:表面貼裝 封裝/外殼:8-VFDFN 裸露焊盤 供應商設備封裝:8-HVSON 包裝:帶卷 (TR) 工作溫度:-40°C ~ 85°C 其它名稱:935286881118PCA9553TK/02-TPCA9553TK/02-T-ND |
發布緊急采購，3分鐘左右您將得到回復。