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参数资料
| 型号： | MAX1531ETJ+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 3/33页 |
| 文件大小： | 0K |
| 描述： | IC PS CTRLR MULTI-OUTPUT 32TQFN |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 2,500 |
| 应用： | 五路电源监控器 |
| 电源电压： | 4.5 V ~ 28 V |
| 电流 - 电源： | 1.7mA |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 32-WFQFN 裸露焊盘 |
| 供应商设备封装： | 32-TQFN-EP（5x5） |
| 包装： | 带卷 (TR) |
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Multiple-Output Power-Supply Controllers for
LCD Monitors
ELECTRICAL CHARACTERISTICS (continued)
(Circuit of Figure 1, V IN = 12V, V EN = V SEQ = 5V, T A = 0 ° C to +85 ° C , unless otherwise noted. Typical values are at T A = +25 ° C.)
PARAMETER
Comparator Bandwidth
Duration to Trigger Fault Latch
Overcurrent Protection Threshold
Overcurrent Sense Common-
Mode Range
CSH Input Current
CSL Input Current
For EN, FB, FBL_
For FB, FBL_
(V CSH - V CSL )
V CSH , V CSL
V CSH = 2.7V to 28V
V CSL = V CSH = 12V
CONDITIONS
MIN
51
270
2.7
-50
TYP
10
64
300
MAX
77
330
28.0
100
+50
UNITS
kHz
ms
mV
V
μA
nA
Overcurrent Sense Filter RC Time
Constant
THERMAL PROTECTION
50
μs
Thermal Shutdown
Temperature rising, 15°C hysteresis
160
°C
RESET FUNCTION
RSTIN Reset Trip Level
RSTIN Input Leakage Current
RSTIN falling, 25mV hysteresis
V RSTIN = 1.5V
1.081
-50
1.114
1.147
+50
V
nA
Comparator Bandwidth
10
kHz
Reset Timeout Period
RESET Output Low Level
RESET Output High Leakage
I RESET = -1mA
V RESET = 5V
102
128
154
0.4
1
ms
V
μA
STEP-DOWN CONTROLLER
ERROR AMPLIFIER
FB Regulation Voltage
1.223
1.238
1.253
V
Transconductance
Voltage Gain
FB to COMP
FB to COMP
70
100
200
140
μS
V/V
Minimum Duty Cycle
15
%
FB Input Leakage Current
FB Input Common-Mode Range
COMP Output Minimum Voltage
COMP Output Maximum Voltage
V FB = 1.5V
(Note 2)
V FB = 1.5V
V FB = 1.175V
-50
-0.1
1
3
+50
+1.5
nA
V
V
V
Current-Sense Amplifier Voltage
Gain
Current-Limit Threshold
(Default Mode)
Current-Limit Threshold
(Adjustable Mode)
ILIM Input Dual Mode? Threshold
V IN - V LX
PGND - LX, ILIM = VL
PGND - LX, V ILIM = 1.25V
2.75
190
190
3.0
3.5
250
250
3.5
4.0
310
310
4.00
V/V
mV
mV
V
OSCILLATOR
Switching Frequency
Maximum Duty Cycle
FREQ = AGND
FREQ = VL
FREQ = AGND
FREQ = VL
200
425
75
75
250
500
80
80
300
575
88
88
kHz
%
Dual Mode is a trademark of Maxim Integrated Products, Inc.
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