参数资料
型号: MAX5051AUI+T
厂商: Maxim Integrated Products
文件页数: 8/21页
文件大小: 0K
描述: IC REG CTRLR PWM VM 28-TSSOP
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 2,500
PWM 型: 电压模式
输出数: 1
频率 - 最大: 500kHz
占空比: 48%
电源电压: 11 V ~ 76 V
降压:
升压:
回扫:
反相:
倍增器:
除法器:
Cuk:
隔离:
工作温度: -40°C ~ 125°C
封装/外壳: 28-SOIC(0.173",4.40mm 宽)裸露焊盘
包装: 带卷 (TR)
Parallelable, Clamped Two-Switch
Power-Supply Controller IC
Typical Operating Characteristics (continued)
(V AVIN = V PVIN = 12V, V UVLO = V STT = 3V, V CON = 3V, R RCOSC = 24k ? , C CSS = 10nF, C RCOSC = 100pF, C REG9 = 4.7μF, C REG5 =
4.7μF, T A = +25 ° C, unless otherwise noted.)
CURRENT-LIMIT THRESHOLD
vs. TEMPERATURE
OPEN-LOOP GAIN/PHASE
vs. FREQUENCY
COMP OUTPUT VOLTAGE
vs. TEMPERATURE
170
100
MAX5051 toc20
270
8
165
160
80
60
GAIN
240
210
180
7
6
5
I SOURCE = 5mA
150
155
150
40
20
120
90
4
3
PHASE
60
2
I SINK = 5mA
145
140
0
-20
30
0
1
0
-50
-25
0
25
50
75
100
125
0.01
0.1
1
10
100
1000 10,000
-50
-25
0
25
50
75
100
125
4.0
3.5
TEMPERATURE ( ° C)
DRVH AND DRVL R DSON
vs. TEMPERATURE
12
11
FREQUENCY (kHz)
LXL AND LXH R DSON
vs. TEMPERATURE
50
45
40
TEMPERATURE ( ° C)
SWITCHING PERIOD vs. R RCOSC
3.0
2.5
2.0
1.5
DRVH AND DRVL SOURCING 50mA
10
9
8
7
LXH SOURCING 10mA
35
30
25
20
15
1.0
6
LXH SINKING 10mA
10
0.5
0
DRVH AND DRVL SINKING 50mA
5
4
5
0
-50
-25
0
25
50
75
100
125
-40
-15
10
35
60
85
110
0
40
80
120
160
200
1.020
TEMPERATURE ( ° C)
NORMALIZED SWITCHING FREQUENCY
vs. TEMPERATURE
130
TEMPERATURE ( ° C)
SYNCIN TO SYNCOUT PROPAGATION
DELAY vs. TEMPERATURE
50.0
R RCOSC (k ? )
DRVH MAXIMUM DUTY CYCLE
vs. TEMPERATURE
1.010
1.000
0.990
0.980
0.970
120
110
100
90
80
70
60
50
SYNCIN FALL TO SYNCOUT RISE
SYNCIN RISE TO SYNCOUT FALL
49.6
49.2
48.8
48.4
48.0
47.6
47.2
46.8
0.960
0.950
SWITCHING
40
30
46.4
46.0
-50
-25
0
25
50
75
100
125
-50
-25
0
25
50
75
100
125
-50
-25
0
25
50
75
100
125
TEMPERATURE ( ° C)
TEMPERATURE ( ° C)
TEMPERATURE ( ° C)
8
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