参数资料
型号: MAX1543ETP+
厂商: Maxim Integrated Products
文件页数: 5/20页
文件大小: 0K
描述: IC DC-DC CONV TFT-LCD 20-TQFN
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 60
应用: 控制器,TFT LCD
输入电压: 2.6 V ~ 5.5 V
输出数: 2
输出电压: 2.6 V ~ 13 V
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 20-WQFN 裸露焊盘
供应商设备封装: 20-TQFN-EP(5x5)
包装: 管件
TFT LCD DC-to-DC Converter with
Operational Amplifiers
ELECTRICAL CHARACTERISTICS (continued)
(V IN = 3V, V SUP = 8V, V SRC = 28V, FREQ = IN (MAX1543), PGND = AGND = 0, T A = -40 ° C to +85 ° C, unless otherwise noted.)
PARAMETER
LX Current Limit
SYMBOL
I LIM
CONDITIONS
V FB = 1V, duty cycle = 65%
MIN
1.2
TYP
MAX
1.8
UNITS
A
Current-Sense Transresistance
0.30
0.65
?
OPERATIONAL AMPLIFIERS
SUP Supply Range
SUP Supply Current
Input Offset Voltage
Input Bias Current
Input Common-Mode Voltage
Range
V SUP
I SUP
V OS
I BIAS
V CM
Buffer configuration, V POS_ = 4V, no load
V CM = V SUP /2, T A = +25 o C
NEG1, NEG2, POS1, POS2
4.5
0
13.0
2.1
12
±50
V SUP
V
mA
mV
nA
V
I OUT_ = 100μA
V SUP -
15
Output Voltage Swing High
Output Voltage Swing Low
V OH
V OL
I OUT_ = 5mA
I OUT_ = -100μA
I OUT_ = -5mA
V SUP -
150
15
150
mV
mV
Short-Circuit Current
To V SUP /2
Source
Sink
50
50
mA
Output Source-and-Sink Current
Buffer configuration, V POS_ = 4V,
| ? V OS | < 10mV
40
mA
POSITIVE GATE-DRIVER TIMING AND CONTROL SWITCHES
DEL Capacitor Charge Current
DEL Turn-On Threshold
V TH (DEL)
During startup, V DEL = 1.0V
4
1.178
6
1.302
μA
V
CTL Input Low Voltage
CTL Input High Voltage
SRC Input Voltage Range
V IN = 2.6V to 5.5V
V IN = 2.6V to 5.5V
V DRN = 8V, CTL = IN,
MAX1542
2
0.6
28
130
V
V
V
SRC Input Current
I SRC
V DEL = 1.5V
MAX1543
180
μA
V DRN = 8V, CTL = AGND, V DEL = 1.5V
30
DRN Input Current
I DRN
V DRN = 8V, CTL = AGND, V DEL = 1.5V,
MAX1543
150
μA
SRC to COM Switch On-
Resistance
R SRC(ON)
V DEL = 1.5V, CTL = IN
MAX1542
MAX1543
10
30
?
DRN to COM Switch On-
Resistance (MAX1543)
R DRN(ON)
V DEL = 1.5V, CTL = AGND
60
?
COM to PGND Switch On-
Resistance (MAX1543)
R COM(ON)
V DEL = 1.1V
350
1800
?
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