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參數資料
| 型號： | ADM8845ACPZ |
| 廠商： | ANALOG DEVICES INC |
| 元件分類： | 顯示驅動器 |
| 英文描述： | Charge Pump Driver for LCD White LED Backlights |
| 中文描述： | LED DISPLAY DRIVER, QCC16 |
| 封裝： | 3 X 3 MM, 0.90 MM HEIGHT, LEAD FREE, LFCSP-16 |
| 文件頁數： | 3/18頁 |
| 文件大小： | 341K |
| 代理商： | ADM8845ACPZ |
Preliminary Technical Data
ADM8845
ADM8845—SPECIFICATIONS
(V
CC
= +2.6V TO 5.5V;
T
A
= -40°C to 85
°C
unless otherwise noted; C1,C2 = 1.0μF; C3 = 2.2μF; C4 = 4.7μF)
Table 1.
PARAMETER
Min
Typ
Input Voltage,V
CC
2.6
Supply Current,I
CC
2.6
Shutdown Current
Charge-Pump Frequency
1.5
Charge Pump Mode Thresholds
1.5x to 2x
3.33
Accuracy
2x to 1.5x
3.36
Accuracy
Hysteresis
40
1x to 1.5x
4.77
Accuracy
1.5x to 1x
4.81
Accuracy
Hysteresis
40
Iset Pin
LED : LED Matching
-1
LED : I
SET
Accuracy
-1
Rev. PrJ 06/04| Page 3 of 18
Max
5.5
5
5
4
4
4
4
+1
+1
Units
V
m A
uA
M H z
V
%
V
%
m V
V
%
V
%
m V
%
%
Test Conditions
All 6 LEDs Disabled, Vcc = 3.3V, R
SET
= 7.08kOhm
CTRL1 = 1, CRTL2 = 1
T
A
= 25°C
I
LED
= 20mA, V
FB
=0.4V
I
LED
= 20mA, R
SET
= 7.08K, V
FB
=0.4V, Vcc = 3.6V, T
A
= 25°C,
Note 2
I
SET
= 20mA
1x Mode
1.5x Mode
2x Mode
See Note 1 and Figure 22
CTRL1 = 1, CRTL2 = 1, Vcc = 3.4V, V
FB
= 0.2V,
I
FB
= 20mA
Vcc = 3.6V, I
LED
= 20mA, All 6 LEDs Enabled
Iset pin voltage
I
LED
to I
SET
Ratio
Min Compliance on FB pin
Charge Pump Output Resistance
LED Current
PWM
Digital Inputs
Input Hi
Input Low
Input Leakage Current
Charge Pump Power Efficiency
Vout Ripple
THERMAL CHARACTERISTICS
16-Lead LFCSP Package:
θ
JA
= 50°C/Watt
0.1
0.5V
CC
1.18
120
0.2
1.2
3.5
8.0
88
30
0.3
1.7
4.5
11
30
200
0.3V
CC
1
V
V
Ohm
Ohm
Ohm
m A
KHz
V
V
uA
%
m V
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相關代理商/技術參數 |
參數描述 |
|---|---|
| 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 |
| ADM8845ACPZ-REEL1 | 制造商:AD 制造商全稱:Analog Devices 功能描述:Charge Pump Driver for LCD White LED Backlights |
| ADM8845ACPZ-REEL7 | 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 |
| ADM8845ACPZ-REEL71 | 制造商:AD 制造商全稱:Analog Devices 功能描述:Charge Pump Driver for LCD White LED Backlights |
| ADM8845ACPZ-WP1 | 制造商:AD 制造商全稱:Analog Devices 功能描述:Charge Pump Driver for LCD White LED Backlights |
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