参数资料
型号: MAX1771CSA+T
厂商: Maxim Integrated Products
文件页数: 4/16页
文件大小: 0K
描述: IC REG CTRLR BST PWM 8-SOIC
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 2,500
PWM 型: 控制器
输出数: 1
频率 - 最大: 500kHz
占空比: 92%
电源电压: 3 V ~ 16.5 V
降压:
升压:
回扫:
反相:
倍增器:
除法器:
Cuk:
隔离:
工作温度: 0°C ~ 70°C
封装/外壳: 8-SOIC(0.154",3.90mm 宽)
包装: 带卷 (TR)
MAX1771
12V or Adjustable, High-Efficiency,
Low I Q , Step-Up DC-DC Controller
Typical Operating Characteristics (continued)
(T A = +25°C, unless otherwise noted.)
SUPPLY CURRENT vs. TEMPERATURE
SUPPLY CURRENT vs. SUPPLY VOLTAGE
EXT RISE/FALL TIME vs. SUPPLY VOLTAGE
4
V OUT = 12V, V IN = 5V
CIRCUIT OF FIGURE 2a
0.8
V OUT = 12V
250
3
2
BOOTSTRAPPED MODE
ENTIRE
CIRCUIT
0.6
0.4
BOOTSTRAPPED
CIRCUIT OF
FIGURE 2a
200
150
C EXT = 2200pF
C EXT = 1000pF
C EXT = 446pF
C EXT = 100pF
100
1
SCHOTTKY DIODE
LEAKAGE EXCLUDED
0.2
50
NON-BOOTSTRAPPED
0
0
CIRCUIT OF FIGURE 2b
0
-75 -50 -25
0
25
50
75 100 125
2
4
6
8
10
12
2
4
6
8
10
12
250
TEMPERATURE ( ° C)
REFERENCE OUTPUT RESISTANCE vs.
TEMPERATURE
1.506
SUPPLY VOLTAGE (V)
REFERENCE vs. TEMPERATURE
16.5
SUPPLY VOLTAGE (V)
MAXIMUM SWITCH ON-TIME vs.
TEMPERATURE
1.504
200
150
10μA
1.502
1.500
16.0
100
50
50μA
100μA
1.498
1.496
1.494
0
-60 -40 -20
0 20 40 60 80 100 120 140
1.492
-60 -40 -20
0 20 40 60 80 100 120 140
15.5
-60 -30
0
30
60
90
120 150
TEMPERATURE ( ° C)
TEMPERATURE ( ° C)
TEMPERATURE ( ° C)
MAXIMUM SWITCH ON-TIME/
4.0
SHUTDOWN CURRENT vs. TEMPERATURE
2.30
MINIMUM SWITCH OFF-TIME vs.
TEMPERATURE
8.0
MINIMUM SWITCH OFF-TIME RATIO
vs. TEMPERATURE
3.5
3.0
2.5
7.5
2.0
V+ = 15V
2.25
7.0
1.5
V+ = 8V
1.0
0.5
V+ = 4V
6.5
0
2.20
6.0
-60 -40 -20
0 20 40 60 80 100 120 140
-60 -30
0
30
60
90
120 150
-60 -30
0
30
60
90
120 150
4
TEMPERATURE ( ° C)
TEMPERATURE ( ° C)
TEMPERATURE ( ° C)
Maxim Integrated
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