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参数资料
| 型号： | DS2152L |
| 厂商： | DALLAS SEMICONDUCTOR |
| 元件分类： | Digital Transmission Controller |
| 英文描述： | DATACOM, FRAMER, PQFP100 |
| 封装： | LQFP-100 |
| 文件页数： | 8/14页 |
| 文件大小： | 1398K |
| 代理商： | DS2152L |
3
Maxim Integrated
Adjustable Overvoltage and Overcurrent
Protectors with High Accuracy
MAX14571/MAX14572/MAX14573
ELECTRICAL CHARACTERISTICS (continued)
(
VIN = 4.5V to 36V, TA = -40NC to +85NC, unless otherwise noted. Typical values are at VIN = 24V, RISET. = 12kI, TA = +25°C.) (Note 3)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
INTERNAL FETs
Internal FET On-Resistance
RON
ILOAD = 100mA, VIN R 8V
100
160
mI
Current-Limit Adjustment Range
ILIM
(Notes 5, 6)
0.7
4.2
A
Current-Limit Accuracy
-15
+15
%
FLAG Assertion Drop Voltage
Threshold
VFA
Increase (VIN - VOUT) drop until FLAG
asserts, VIN = 24V
560
mV
Reverse Current Blocking Threshold
VRIB
VOUT - VIN
40
100
160
mV
Reverse Blocking Leakage Current
IRBL
VOUT - VIN > 160mV, current into OUT
400
600
F
A
FLAG OUTPUT
FLAG Output Logic-Low Voltage
ISINK = 1mA
0.4
V
FLAG Output Leakage Current
VIN = VFLAG = 5V, FLAG desasserted
2
F
A
LOGIC INPUT
HVEN Threshold Voltage
VHVEN_TH
1
2
3.5
V
HVEN Threshold Hysteresis
2
%
HVEN Input Leakage Current
IHVEN_LEAK VHVEN = 36V
26
40
F
A
HVEN Input Reverse Leakage
Current
IHVEN_RLEAK VIN = VHVEN = -36V
-45
-27
F
A
EN, RIEN Input Logic-High
VIH
1.4
V
EN, RIEN Input Logic-Low
VIL
0.4
V
EN, RIEN Input Leakage Current
IEN_LEAK,
IRIEN_LEAK
VEN = VRIEN = 5.0V
-1
+1
F
A
THERMAL PROTECTION
Thermal Shutdown
TJC_MAX
Low-to-high temperature
150
N
C
Thermal-Shutdown Hysteresis
TJC_HYST
High-to-low temperature
30
N
C
TIMING CHARACTERISTICS (Note 7)
Switch Turn-On Time
tON
From OFF to IN, see Table 1. RLOAD =
240I, COUT = 470FF
25
ms
Switch Turn-Off Time
tOFF
RLOAD = 47I
3
F
s
Overvoltage Switch Turn-Off Time
tOFF_OVP
VIN > VOVLO to VOUT = 80% of VOVLO,
RLOAD = 47I, RSETI = 10kI
3
F
s
Overcurrent Switch Turn-Off Time
tOFF_OCP
IIN > ILIM, after tBLANK, ILIM = 1A
3
F
s
IN Debounce Time
tDEB
VIN changes from 0V to greater than
VUVLO to VOUT = 10% of VIN
15.0
16.7
18.4
ms
Blanking Time
tBLANK
18.6
20.7
22.8
ms
Autoretry Time
tRETRY
After blanking time from IOUT > ILIM to
FLAG clear (deassertion) (Note 8)
540
600
660
ms
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