ML4863 Просмотр технического описания (PDF) - Micro Linear Corporation
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ML4863 Datasheet PDF : 10 Pages
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ABSOLUTE MAXIMUM RATINGS
Absolute maximum ratings are those values beyond which
the device could be permanently damaged. Absolute
maximum ratings are stress ratings only and functional
device operation is not implied.
VIN ................................................................. GND – 0.3V to 18V
Voltage on any other pin ........................... GND – 0.3V to 7V
Source or Sink Current (OUT1 & OUT2) ...................... 1A
Junction Temperature .............................................. 150ºC
Storage Temperature Range...................... –65ºC to 150ºC
ML4863
Lead Temperature (Soldering 10 Sec.) ..................... 260ºC
Thermal Resistance (qJA) .................................... 160ºC/W
OPERATING CONDITIONS
Temperature Range
ML4863CS ................................................. 0ºC to 70ºC
ML4863ES ............................................. –20ºC to 70ºC
ML4863IS .............................................. –40ºC to 85ºC
VIN Operating Range ................................... 3.15V to 15V
ELECTRICAL CHARACTERISTICS
Unless otherwise specified, VIN = 12V, TA = Operating Temperature Range (Note 1)
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX UNITS
OSCILLATOR
tON ON Time
C Suffix 2.1
E/I Suffix 2.1
2.5
2.8
µs
2.5
2.95
µs
Minimum Off Time
VFB REGULATION
Total Variation
VFB = 0V
Line, Load, & Temp
450
650
850
ns
4.85
5
5.15
V
OUTPUT DRIVERS
OUT1 Rise Time
OUT1 Fall Time
OUT2 Rise Time
OUT2 Fall Time
SHDN
CLOAD = 3nF, 20% to 90% of VCC
CLOAD = 3nF, 90% to 20% of VCC
CLOAD = 3nF, 20% to 90% of VCC
Continuous Mode, CLOAD = 3nF,
90% to 20% of VCC
Discontinuous Mode, CLOAD = 3nF,
90% to 20% of VCC
60
70
ns
60
70
ns
60
70
ns
60
70
ns
125
150
ns
Input High Voltage
2.0
V
Input Low Voltage
0.8
V
Input Bias Current
SHDN = 5V
5
10
µA
SENSE
SENSE Threshold – Full Load
SENSE Threshold – Short Circuit
CIRCUIT PROTECTION
VIN = 5V, VFB = VFB (No Load) – 100mV 130
150
160
mV
VFB = 0V
235
mV
Undervoltage Lockout Start-up Threshold
3.0
3.15
V
Undervoltage Lockout Hysteresis
0.5
0.6
V
3
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