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參數資料
| 型號： | MAX1839 |
| 廠商： | Maxim Integrated Products, Inc. |
| 英文描述： | Wide Brightness Range CCFL Backlight Controllers |
| 中文描述： | 寬亮度范圍CCFL背光控制器 |
| 文件頁數： | 5/26頁 |
| 文件大?。?/td> | 444K |
| 代理商： | MAX1839 |
M
Wide Brightness Range
CCFL Backlight Controllers
_______________________________________________________________________________________
5
ELECTRICAL CHARACTERISTICS
(V+ = 8.2V, V
SH
/SUS = V
SH
= 5.5V, MINDAC = GND,
T
A
= -40
°
C to +85
°
C
, unless otherwise noted.) (Note 6)
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
SUPPLY AND REFERENCE
VL = V
BATT
VL = open
SH
/SUS =
SH
= GND
4.6
6
5.5
28
20
V
BATT
Input Voltage Range
V
V
BATT
Quiescent Current, Shutdown
μA
VL Output Voltage, Normal Operation
6V < V
BATT
< 28V,
0 < I
LOAD
< 15mA
VL rising (leaving lockout)
VL falling (entering lockout)
5.0
5.6
V
4.6
VL Undervoltage Lockout Threshold
4.0
V
REF Output Voltage, Normal
Operation
4.5V < VL < 5.5V, I
REF
= 40μA
1.95
2.05
V
VL POR Threshold
0.9
2.7
V
SWITCHING REGULATOR
DH Driver On-Resistance
DL1, DL2 Driver On-Resistance
SYNC Synchronization Range
CS Overcurrent Threshold
18
18
200
492
Detect falling edges on SYNC
64
408
kHz
mV
DAC AND ERROR AMPLIFIER
CSAV Regulation Point
CTFB Regulation Point
CTFB to CCV Transconductance
ANALOG INTERFACE BRIGHTNESS CONTROL
(MODE connected to REF or MODE connected to GND)
SH
Input Low Voltage
SH
Input High Voltage
V
MINDAC
= 0, DAC code = 11111 binary
186
560
30
202
640
50
mV
mV
μmho
1V < V
CCV
< 2.7V
0.8
V
V
2.1
SYSTEM MANAGEMENT BUS BRIGHTNESS CONTROL
(MODE connected to VL)
CRF/SDA, CTL/SCL,
SH
/SUS Input
Low Voltage
0.8
V
CRF/SDA, CTL/SCL,
SH
/SUS Input
High Voltage
2.1
V
CRF/SDA Output Low Sink Current
V
CRF/SDA
= 0.4V
4
mA
Note 1:
Corresponds to 512 DPWM cycles or 65536 MODE
cycles.
Note 2:
When the buck switch is shorted, V
CTFB
goes high
causing V
CCV
to go below the fault detection threshold.
Note 3:
Corresponds to 64 DPWM cycles or 8192 MODE cycles.
Note 4:
The MODE pin thresholds are only valid while the part is
operating. In shutdown, V
REF
= 0 and the part only
differentiates between SMB mode and ADC mode. In
shutdown with ADC mode selected, the CRF/SDA and
CTL/SCL pins are at high impedance and will not cause
extra supply current when their voltages are not at
GND or VL.
V
AMPLITUDE
> 2V
MODE
500pF
10k
Note 5:
The amplitude is measured with the following circuit:
Note 6:
Specifications from -40
°
C to +85
°
C are guaranteed by
design, not production tested.
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相關代理商/技術參數 |
參數描述 |
|---|---|
| MAX1839EEP | 功能描述:顯示驅動器和控制器 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: 安裝風格:SMD/SMT 封裝 / 箱體:QFN-44 封裝:Reel |
| MAX1839EEP+ | 功能描述:顯示驅動器和控制器 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: 安裝風格:SMD/SMT 封裝 / 箱體:QFN-44 封裝:Reel |
| MAX1839EEP+T | 功能描述:顯示驅動器和控制器 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: 安裝風格:SMD/SMT 封裝 / 箱體:QFN-44 封裝:Reel |
| MAX1839EEP-T | 功能描述:顯示驅動器和控制器 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: 安裝風格:SMD/SMT 封裝 / 箱體:QFN-44 封裝:Reel |
| MAX183ACNG | 功能描述:模數轉換器 - ADC RoHS:否 制造商:Texas Instruments 通道數量:2 結構:Sigma-Delta 轉換速率: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 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-32 |
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