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参数资料
| 型号： | MAX1748EUE+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 2/16页 |
| 文件大小： | 0K |
| 描述： | IC DC-DC CONV TRPL LCD 16-TSSOP |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 2,500 |
| 应用： | 转换器，TFT，LCD |
| 输入电压： | 2.7 V ~ 5.5 V |
| 输出数： | 3 |
| 输出电压： | 2.7 V ~ 13 V |
| 工作温度： | 0°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 16-TSSOP（0.173"，4.40mm 宽） |
| 供应商设备封装： | 16-TSSOP |
| 包装： | 带卷 (TR) |
Triple-Output TFT-LCD
DC-DC Converters
ABSOLUTE MAXIMUM RATINGS
IN, SHDN , TGND to GND .........................................-0.3V to +6V
DRVN to GND .........................................-0.3V to (V SUPN + 0.3V)
DRVP to GND..........................................-0.3V to (V SUPP + 0.3V)
PGND to GND.....................................................................±0.3V
RDY to GND ...........................................................-0.3V to +14V
LX, SUPP, SUPN to PGND .....................................-0.3V to +14V
INTG, REF, FB, FBN, FBP to GND ...............-0.3V to (V IN + 0.3V)
Continuous Power Dissipation (T A = +70°C)
16-Pin TSSOP (derate 9.4mW/°C above +70°C) ..........755mW
Operating Temperature Range
MAX1748EUE/MAX8726EUE..........................-40°C to +85°C
Junction Temperature ......................................................+150°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
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.
ELECTRICAL CHARACTERISTICS
(V IN = +3.0V, SHDN = IN, V SUPP = V SUPN = 10V, TGND = PGND = GND, C REF = 0.22μF, C INTG = 470pF, T A = 0°C to +85°C , unless
otherwise noted. Typical values are at T A = +25°C.)
PARAMETER
Input Supply Range
Input Undervoltage Threshold
IN Quiescent Supply Current
SUPP Quiescent Current
SUPN Quiescent Current
IN Shutdown Current
SUPP Shutdown Current
SUPN Shutdown Current
SYMBOL
V IN
V UVLO
I IN
I SUPP
I SUPN
CONDITIONS
V IN rising, 40mV hysteresis (typ)
V FB = V FBP = 1.5V, V FBN = -0.2V
V FBP = 1.5V
V FBN = -0.1V
V SHDN = 0, V IN = 5V
V SHDN = 0, V SUPP = 13V
V SHDN = 0, V SUPN = 13V
MIN
2.7
2.2
TYP
2.4
0.6
0.4
0.4
0.1
0.1
0.1
MAX
5.5
2.6
1
0.8
0.8
10
10
10
UNITS
V
V
mA
mA
mA
μA
μA
μA
MAIN BOOST CONVERTER
Output Voltage Range
V MAIN
V IN
13
V
FB Regulation Voltage
FB Input Bias Current
Operating Frequency
Oscillator Maximum Duty Cycle
V FB
I FB
f OSC
T A = 0 ° C to +85 ° C
V FB = 1.25V, INTG = GND
1.235
-50
0.85
78
1.248
1
85
1.261
+50
1.15
90
V
nA
MHz
%
Load Regulation
Line Regulation
Integrator Gm
I MAIN = 0 to 200mA, V MAIN = 10V
0.2
0.1
320
%
%/V
μmho
LX Switch On-Resistance
LX Leakage Current
LX Current Limit
R LX(ON)
I LX
I LX(MAX)
I LX = 100mA
V LX = 13V
Phase I = soft-start (1.0ms)
Phase II = soft-start (1.0ms)
Phase III = soft-start (1.0ms)
Phase IV = fully on (after 3.0ms)
0.275
1.1
0.35
0.01
0.380
0.75
1.12
1.5
0.7
20
0.500
2.0
Ω
μA
A
Maximum RMS LX Current
1
A
Soft-Start Period
t SS
Power-up to the end of phase III
3072 /
f OSC
s
FB Fault Trip Level
1.07
1.1
1.14
V
POSITIVE CHARGE PUMP
V SUPP Input Supply Range
V SUPP
2.7
13.0
V
2
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