參數(shù)資料
型號(hào)： MAX1839EEP
廠商： MAXIM INTEGRATED PRODUCTS INC
元件分類： 穩(wěn)壓器
英文描述： Wide Brightness Range CCFL Backlight Controllers
中文描述： FLUORESCENT LIGHT CONTROLLER, 64 kHz SWITCHING FREQ-MAX, PDSO20
封裝： 0.150 INCH, 0.025 INCH PITCH, QSOP-20
文件頁數(shù)： 3/26頁
文件大?。?/td> 444K
代理商： MAX1839EEP
M
Wide Brightness Range
CCFL Backlight Controllers
_______________________________________________________________________________________
3
ELECTRICAL CHARACTERISTICS (continued)
(V+ = 8.2V, V
SH
/SUS = V
SH
= 5.5V, MINDAC = GND,
T
A
= 0
°
C to +85
°
C
, unless otherwise noted. Typical values are at T
A
= +25
°
C.)
PARAMETER
CONDITIONS
DAC AND ERROR AMPLIFIER
DAC Resolution
Guaranteed monotonic
MINDAC Input Voltage Range
MINDAC Input Bias Current
0 < V
MINDAC
< 2V
MINDAC Digital PWM Disable
Threshold
CSAV Input Voltage Range
V
MINDAC
= 0, DAC code = 11111 binary
V
MINDAC
= 0, DAC code = 00001 binary
CSAV Regulation Point
V
MINDAC
= 1V, DAC code = 00000 binary
CSAV Input Bias Current
CSAV to CCI Transconductance
1V < V
CCI
< 2.7V
CTFB Input Voltage Range
CTFB Input Bias Current
CTFB Regulation Point
CTFB to CCV Transconductance
1V < V
CCV
< 2.7V
TIMERS AND FAULT DETECTION
MIN
TYP
MAX
UNITS
5
0
-1
Bits
V
μ
A
2
1
MINDAC = VL
2.4
2.9
4
V
0
0.8
200
16
110
1
V
188
2
93
-1
194
6.25
100
mV
μ
A
μ
mho
V
μ
A
mV
μ
mho
100
0
-1
570
30
2
1
600
40
630
50
Chopping Oscillator Frequency
No AC signal on MODE, not synchronized
No AC signal on MODE
32kHz AC signal on MODE
100kHz AC signal on MODE
F
MODE
/ F
DPWM
24
205
28
220
250
781
128
2.33
2.05
0.66
75
32
235
kHz
Digital PWM Chop-Mode Frequency
Hz
MODE to DPWM Sync Ratio
No AC signal on MODE
32kHz AC signal on MODE
100kHz AC signal on MODE
2.06
2.73
Lamp-Out Detection Timeout Timer
(Center-Tap Voltage Stuck at
Maximum) (Note 1)
V
CSAV
< CSAV
lamp-out
threshold
s
CSAV Lamp-Out Threshold
Fault-Detection Threshold on CCV
50
0.4
332
100
1
259
mV
V
(Note 2)
No AC signal on MODE
32kHz AC signal on MODE
100kHz AC signal on MODE
291
256
82
4
Shorted Buck-Switch Detection
Timeout Timer (UL1950 Protection)
(Note 3)
V
CCV
< fault-
detection
threshold on CCV
ms
Lamp Turn-On Delay
MODE Operating Voltage Range
MODE = GND Threshold
(min Brightness = 0)
After
SH
/SUS or SH forces device on or
SH
rises
ms
V
-5.5
11
To sync DPWM oscillator, not in shutdown
(Note 4)
0.6
V
MODE = REF Threshold
(max Brightness = 0)
To sync DPWM oscillator, not in shutdown
(Note 4)
1.4
2.6
V
MODE = VL Threshold
(MAX1739 SMB Interface Mode)
To sync DPWM oscillator, not in shutdown
(Note 4)
VL - 0.6
V
MODE AC Signal Amplitude
MODE AC Signal Synchronization
Range
Peak to peak (Note 5)
Chopping oscillator synchronized to MODE AC
signal
2
V
32
100
kHz
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MAX1839EEP+ 功能描述:顯示驅(qū)動(dòng)器和控制器 CCFL Backlight Controller RoHS:否 制造商:Panasonic Electronic Components 工作電源電壓:2.7 V to 5.5 V 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-44 封裝:Reel
MAX1839EEP+T 功能描述:顯示驅(qū)動(dòng)器和控制器 CCFL Backlight Controller RoHS:否 制造商:Panasonic Electronic Components 工作電源電壓:2.7 V to 5.5 V 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-44 封裝:Reel
MAX1839EEP-T 功能描述:顯示驅(qū)動(dòng)器和控制器 RoHS:否 制造商:Panasonic Electronic Components 工作電源電壓:2.7 V to 5.5 V 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-44 封裝:Reel
MAX183ACNG 功能描述:模數(shù)轉(zhuǎn)換器 - ADC RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構(gòu):Sigma-Delta 轉(zhuǎn)換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-32
MAX183ACNG+ 功能描述:模數(shù)轉(zhuǎn)換器 - ADC RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構(gòu):Sigma-Delta 轉(zhuǎn)換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-32
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