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參數資料
| 型號： | MAX1889 |
| 廠商： | Maxim Integrated Products, Inc. |
| 元件分類： | 數字信號處理 |
| 英文描述： | Fixed-Point Digital Signal Processor 256-BGA |
| 中文描述： | 三輸出TFT LCD電源，帶有故障保護 |
| 文件頁數： | 2/32頁 |
| 文件大?。?/td> | 796K |
| 代理商： | MAX1889 |
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M
Triple-Output TFT LCD Power Supply
with Fault Protection
2
_______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
IN,
SHDN
, OCN, OCP,
FB, FBP, FBN, FREQ to GND...............................-0.3V to +6V
PGND to GND.....................................................................±0.3V
LX to PGND............................................................-0.3V to +14V
DRVP to GND.........................................................-0.3V to +30V
REF, GATE, TGND to GND..........................-0.3V to (V
IN
+ 0.3V)
DRVN to GND .....................................(V
IN
- 28V) to (V
IN
+ 0.3V)
ELECTRICAL CHARACTERISTICS
(V
IN
= 3V,
SHDN
= IN, C
REF
= 0.22μF, PGND = GND,
T
A
= 0°C to +85°C
. Typical values are at T
A
= +25°C, unless otherwise noted.)
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
Continuous Power Dissipation (T
A
= +70°C)
16-Pin QFN (derate 19.2mW/°C above +70°C) .........1538mW
Operating Temperature Range
MAX1889EGE..................................................-40°C to +85°C
Junction Temperature......................................................+150°C
Storage Temperature Range.............................-65°C to +150°C
Lead Temperature (soldering, 10s).................................+300°C
PARAMETER
SYMBOL
V
IN
CONDITIONS
MIN
2.7
2.55
2.2
TYP
MAX
5.5
2.85
2.5
1.0
1.0
1.269
UNITS
V
IN Supply Range
V
IN
rising
V
IN
falling
2.7
2.35
IN Undervoltage Lockout
(UVLO) Threshold
V
UVLO
350mV typical
hysteresis
V
IN Quiescent Current
IN Shutdown Current
REF Output Voltage
Thermal Shutdown
MAIN STEP-UP REGULATOR
Main Output Voltage Range
I
IN
V
FB
= V
FBP
= 1.5V, V
FBN
= 0V (Note 1)
V
SHDN
= 0, V
IN
= 5V
-2μA < I
REF
< 50μA
mA
μA
V
°
C
0.1
1.250
160
V
REF
1.231
V
MAIN
V
IN
0.85
13
1.15
V
V
FREQ
= V
IN
V
FREQ
= 0V
1
MHz
kHz
%
V
V
%
%/V
nA
m
μA
A
A
Operating Frequency
f
OSC
500
85
1.242
1.0
-1.6
0.2
Oscillator Maximum Duty Cycle
FB Regulation Voltage
FB Fault Trip Level
Load Regulation
Line Regulation
FB Input Bias Current
LX Switch On-Resistance
LX Leakage Current
LX Current Limit
LX RMS Current Rating
80
90
V
FB
I
LX
= 200mA, slope = 0 (Note 2)
V
FB
falling
I
MAIN
= 0 to full load
V
IN
= 2.7V to 5.5V
V
FB
= 1.5V
1.229
0.95
1.254
1.05
I
FB
-100
+100
450
20
2.8
1.4
R
LX(ON)
I
LX
I
LIM
250
0.01
2.1
V
LX
= 13V
1.6
Not tested
Soft-Start Period
t
SS
4096 /
f
OSC
s
Soft-Start Step Size
V
REF
/32
V
POSITIVE LINEAR-REGULATOR CONTROLLER
FBP Regulation Voltage
FBP Fault Trip Level
FBP Input Bias Current
FBP Effective Transconductance
V
FBP
I
DRVP
= 0.2mA
V
FBP
falling
V
FBP
= 1.25V
V
DRVP
= 10V, I
DRVP
= 0.1mA to 2mA
1.213
0.96
-50
75
1.25
1.0
1.288
1.04
+50
V
V
nA
mS
I
FBP
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相關代理商/技術參數 |
參數描述 |
|---|---|
| MAX1889EGE | 制造商:Maxim Integrated Products 功能描述: |
| MAX1889EGE+ | 制造商:Maxim Integrated Products 功能描述:TRIPLE-OUTPUT TFT LCD POWER SUPPLY WITH FAULT PROTECTION - Rail/Tube |
| MAX1889ETE | 功能描述:LCD 驅動器 RoHS:否 制造商:Maxim Integrated 數位數量:4.5 片段數量:30 最大時鐘頻率:19 KHz 工作電源電壓:3 V to 3.6 V 最大工作溫度:+ 85 C 最小工作溫度:- 20 C 封裝 / 箱體:PDIP-40 封裝:Tube |
| MAX1889ETE+ | 功能描述:直流/直流開關轉換器 Quad-Output TFT LCD Power Supply RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開關頻率:1.5 MHz 輸出電壓:4.6 V 輸出電流:250 mA 輸出端數量:2 最大工作溫度:+ 85 C 安裝風格:SMD/SMT |
| MAX1889ETE+T | 功能描述:LCD 驅動器 Quad-Output TFT LCD Power Supply RoHS:否 制造商:Maxim Integrated 數位數量:4.5 片段數量:30 最大時鐘頻率:19 KHz 工作電源電壓:3 V to 3.6 V 最大工作溫度:+ 85 C 最小工作溫度:- 20 C 封裝 / 箱體:PDIP-40 封裝:Tube |
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