参数资料
型号: MAX1747EUP+T
厂商: Maxim Integrated Products
文件页数: 6/13页
文件大小: 0K
描述: IC CHRG-PUMP TRPL TFTLCD 20TSSOP
标准包装: 2,500
应用: 转换器,TFT,LCD
输入电压: 2.7 V ~ 4.5 V
输出数: 3
输出电压: 可调
工作温度: 0°C ~ 85°C
安装类型: *
封装/外壳: *
供应商设备封装: *
包装: *
Triple Charge-Pump TFT LCD
DC-DC Converter
Typical Operating Characteristics (continued)
(Circuit of Figure 1, V IN = V SUPM = +3.3V, T A = +25 ° C, unless otherwise noted.)
16
14
12
10
8
6
NO-LOAD SUPPLY CURRENT
vs. SWITCHING FREQUENCY
2.0
1.6
1.2
0.8
SWITCHING FREQUENCY
vs. I SHDN
12.0
11.5
11.0
10.5
10.0
NO-LOAD SUPPLY CURRENT
vs. TEMPERATURE
4
2
0
0.4
0
9.5
9.0
V ON = 3.3V
R FREQ = 120k ?
0
0.5
1.0
1.5
2.0
0
10
20
30
40
50
-40
-15
10
35
60
85
FREQUENCY (MHz)
SWITCHING FREQUENCY
vs. TEMPERATURE
I SHDN (mA)
NEGATIVE LOW-POWER CHARGE-PUMP
EFFICIENCY vs. LOAD CURRENT
TEMPERATURE ( ° C)
NEGATIVE LOW-POWER CHARGE-PUMP
OUTPUT VOLTAGE vs. LOAD CURRENT
1.15
1.10
100
90
V NEG = -7V
-6.3
-6.4
1.05
80
70
V SUPN = 5V
V SUPN = 6V
-6.5
-6.6
V SUPN = 5V
1.00
0.95
60
50
40
-6.7
-6.8
-6.9
V SUPN = 6V
0.90
0.85
V ON = 3.3V
R FREQ = 120k ?
30
20
V SUPN = 7V
-7.0
-7.1
V SUPN = 7V
-40
-15
10
35
60
85
0
10
20
30
40
0
10
20
30
40
TEMPERATURE ( ° C)
MAXIMUM NEGATIVE CHARGE-PUMP
OUTPUT VOLTAGE vs. SUPPLY VOLTAGE
I NEG (mA)
POSITIVE LOW-POWER CHARGE-PUMP
EFFICIENCY vs. LOAD CURRENT
I NEG (mA)
POSITIVE LOW-POWER CHARGE-PUMP
OUTPUT VOLTAGE vs. LOAD CURRENT
-2
-6
V NEG(NOMINAL) = -20V
100
90
80
V SUPP = 5V
12.2
12.1
12.0
-10
I NEG = 10mA
70
11.9
V SUPP = 7V
60
11.8
-14
I NEG = 1mA
50
V SUPP = 6V
V SUPP = 7V
11.7
V SUPP = 6V
-18
40
30
11.6
11.5
V SUPP = 5V
-22
20
V POS = 12V
11.4
3
5
7
9
11
13
0
10
20
30
40
0
10
20
30
40
V SUPN (V)
I POS (mA)
I POS (mA)
6
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