参数资料
型号: MAX8795AGCJ+T
厂商: Maxim Integrated Products
文件页数: 3/31页
文件大小: 0K
描述: IC CONV DC-DC TFT-LCD 32LQFP
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 2,000
应用: 转换器,TFT,LCD
输入电压: 2.5 V ~ 6 V
输出数: 8
输出电压: 2.5 V ~ 18 V
工作温度: -40°C ~ 105°C
安装类型: 表面贴装
封装/外壳: 32-LQFP
供应商设备封装: 32-LQFP(7x7)
包装: 带卷 (TR)
TFT-LCD DC-DC Converter with
Operational Amplifiers
ELECTRICAL CHARACTERISTICS (continued)
(V IN = 3V, V MAIN = V SUP = 14V, V PGND = V AGND = V BGND = 0V, I REF = 25μA, T A = 0°C to +85°C . Typical values are at T A = +25°C,
unless otherwise noted.)
PARAMETER
FB Transconductance
SYMBOL
CONDITIONS
? I COMP = ± 2.5μA
MIN
75
TYP
160
MAX
280
UNITS
μS
FB Voltage Gain
From FB to COMP
700
V/ V
LX On-Resistance
LX Leakage Current
R LX(ON)
I LX
I LX = 200mA
V LX = 19V
160
10
260
20
m ?
μA
LX Current Limit
Current-Sense Transresistance
I LIM
V FB = 1.2V, duty cycle = 75%
2.5
0.1
3.0
0.2
3.5
0.3
A
V/A
Soft-Start Period
Soft-Start Step Size
t SS
14
V REF /
128
ms
V
OPERATIONAL AMPLIFIERS
SUP Supply Range
V SUP
6.0
18.0
V
SUP Overvoltage Fault Threshold
18.0
19
19.9
V
SUP Supply Current
Input Offset Voltage
I SUP
V OS
Buffer configuration, V POS _ = V SUP / 2,
no load
(V NEG _, V POS _, V OUT _) ? V SUP / 2
3.5
0
5.0
12
mA
mV
Input Bias Current
Input Common-Mode Voltage
Range
Common-Mode Rejection Ratio
I BIAS
V CM
CMRR
(V NEG _ , V POS _, V OUT _) ? V SUP / 2
0 ≤ (V NEG _, V POS _) ≤ V SUP
-50
0
45
0
80
+50
V SUP
nA
V
dB
Open-Loop Gain
125
dB
Output Voltage Swing, High
V OH
I OUT _ = 5mA
V SUP -
100
V SUP -
50
mV
Output Voltage Swing, Low
Short-Circuit Current
Power-Supply Rejection Ratio
V OL
PSRR
I OUT _ = -5mA
To V SUP / 2, source or sink
DC, 6V ≤ V SUP ≤ 18V,
(V NEG _, V POS _) ? V SUP / 2
75
60
50
130
100
mV
mA
dB
Slew Rate
45
V/μs
-3dB Bandwidth
R L = 10k ? , C L = 10pF, buffer configuration
20
MHz
GATE-ON LINEAR-REGULATOR CONTROLLER
FBP Regulation Voltage
FBP Fault Trip Level
FBP Input Bias Current
FBP Effective Load-Regulation
Error (Transconductance)
FBP Line (IN) Regulation Error
DRVP Sink Current
DRVP Off-Leakage Current
V FBP
I FBP
I DRVP
I DRVN = 100μA
V FBP falling
V FBP = 1.25V
V DRVP = 10V, I DRVP = 50μA to 1mA
I DRVP = 100μA, 2.5V < V IN < 6V
V FBP = 1.1V, V DRVP = 10V
V FBP = 1.4V, V DRVP = 34V
1.231
0.96
-50
1
1.250
1.00
-0.7
±1
5
0.01
1.269
1.04
+50
-1.5
±10
10
V
V
nA
%
mV
mA
μA
Soft-Start Period
Soft-Start Step Size
t SS
14
V REF /
128
ms
V
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