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SC419 датащи(PDF) 4 Page - Semtech Corporation

номер детали SC419
подробное описание детали  EcoSpeedTM DC-DC Converter with Integrated Boost Diode
PDF  24 Pages
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производитель  SEMTECH [Semtech Corporation]
домашняя страница  http://www.semtech.com
Logo SEMTECH - Semtech Corporation

SC419 датащи(HTML) 4 Page - Semtech Corporation

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SC419
4
Electrical Characteristics (continued)
Parameter
Conditions
Min
Typ
Max
Units
Frequency Range
Continuous mode operation
1000
kHz
Timing
On-Time
Forced continuous mode operation,
V
IN = 15V, VOUT = 5V, RTON = 300kΩ
2385
2650
2915
ns
Minimum On-Time (1)
80
ns
Minimum Off-Time(1)
250
ns
Soft-Start
Soft-Start Ramp Time(1)
V
OUT ramp from zero to programmed value
850
μs
Analog Inputs/Outputs
VOUT Input Resistance
500
kΩ
Current Sense
Zero Cross Detector Threshold
LX - PGND
-7
0
+7
mV
Power Good
Power Good Threshold
Upper limit, V
FB > internal 500mV reference
+20
%
Lower limit, V
FB < internal 500mV reference
-10
%
Start-Up Delay Time
Includes Soft-Start Ramp Time
2
ms
Fault (noise immunity) Delay Time(1)
5
µs
Leakage
1
µA
Power Good On-Resistance
10
Ω
Fault Protection
I
LIM Source Current
9
10
11
μA
I
LIM Source Current Temperature Coefficient
(1)
0.41
%/°C
I
LIM Comparator Offset
-8
0
+8
mV
Output Under-Voltage Threshold
V
FB with respect to internal 500mV reference,
8 consecutive cycles
-25
%
Smart Power-Save Protection Threshold(1)
V
FB with respect to internal 500mV reference
+10
%
Over-Voltage Protection Threshold
V
FB with respect to internal 500mV reference
+20
%
Over-Voltage Fault Delay(1)
5
μs
Over-Temperature Shutdown(1)
10°C hysteresis
150
°C



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