AMS4154 Ver la hoja de datos (PDF) - Advanced Monolithic Systems Inc
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AMS4154 Datasheet PDF : 5 Pages
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ABSOLUTE MAXIMUM RATINGS
Input Supply Voltage
-0.3V to +34V
SW Voltage
-1V to VIN + 0.3V
BS Voltage
V LX – 0.3V to V LX + 6V
All Other Pins
-0.3V to +6V
Junction Temperature
Storage Temperature
Lead Temperature
AMS4154
+150°C
-65°C to +150°C
260°C
ELECTRICAL CHARACTERISTICS
Electrical Characteristics at TA= 25 °C and VIN=12V (unless otherwise noted).
PARAMETER
TEST CONDITIONS
Feedback Voltage
0.6V ≤ VIN ≤ 32V, VCOMP < 2V
Supply Current
Shutdown Supply Current
Current Limit
Current Sense to COMP
Transconductance
Oscillation Frequency
Maximum Duty Cycle
Minimum Duty Cycle
EN Threshold Voltage
EN Threshold Voltage
EN Threshold Hysteresis
Enable Current
Thermal Shutdown
5V REF Voltage
REF Load Regulation
REF Line Regulation
VEN = 5V, VFB = 1.4V
VEN = 0V
VFB = 1.0V
VFB = 1.5V
VEN Rising, Output ON
VEN Falling , Output OFF
VEN = 0V
IREF = 0
∆IREF = 0 to 1mA
IREF = 100µA, VIN = 6.5 to 32V
AMS4154
Min. Typ. Max.
0.588 0.600 0.612
Units
V
1.0
1.2
mA
0.5
1
µA
2.5
3.6
4.9
A
3.5
A/V
280
330
380
KHz
90
99
%
0
%
2.5
2.6
2.8
V
2.2
2.3
V
250
mV
1.8
µA
160
ºC
4.8
5.0
5.2
V
100
mV
30
mV
Advanced Monolithic Systems, Inc. www.advanced-monolithic.com Phone (925) 443-0722 Fax (925) 443-0723
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