APW7143KI-TRG Ver la hoja de datos (PDF) - Anpec Electronics
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APW7143KI-TRG Datasheet PDF : 19 Pages
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APW7143
Recommended Operating Conditions (Note 4)
Symbol
VIN
VOUT
IOUT
VIN Supply Voltage
Converter Output Voltage
Converter Output Current
Parameter
CIN
Converter Input Capacitor (MLCC)
COUT
LOUT
TA
TJ
Converter Output Capacitor
Effective Series Resistance
Converter Output Inductor
Resistance of the Feedback Resistor connected from FB to AGND
Ambient Temperature
Junction Temperature
Note 4: Refer to the Typical Application Circuits
Range
4.3 ~ 14
0.8 ~ VIN
0~3
8 ~ 50
20 ~ 1000
0 ~ 60
1 ~ 22
1 ~ 20
-40 ~ 85
-40 ~ 125
Unit
V
V
A
µF
µF
mΩ
µH
kΩ
oC
oC
Electrical Characteristics
Refer to the typical application circuits. These specifications apply over VIN=12V, VOUT=3.3V, and TA= -40 ~ 85°C, unless otherwise
specified. Typical values are at TA=25°C.
Symbol
Parameter
Test Conditions
SUPPLY CURRENT
IVIN
VIN Supply Current
VFB = VREF +50mV, VEN=3V, LX=NC
IVIN_SD
VIN Shutdown Supply Current
VEN = 0V
POWER-ON-RESET (POR) VOLTAGE THRESHOLD
VIN POR Voltage Threshold
VIN rising
VIN POR Hysteresis
REFERENCE VOLTAGE
VREF
Reference Voltage
Output Voltage Accuracy
Regulated on FB pin
TJ = 25oC, IOUT=10mA, VIN=12V
IOUT=10mA~3A, VIN=4.75~14V
Line Regulation
VIN = 4.75V to 14V
Load Regulation
OSCILLATOR AND DUTY CYCLE
FOSC
Oscillator Frequency
IOUT = 0.5A ~ 3A
TJ = -40 ~ 125oC, VIN = 4.75 ~ 14V
Foldback Frequency
VOUT = 0V
Maximum Converter’s Duty
TON_MIN
Minimum Pulse Width of LX
CURRENT-MODE PWM CONVERTER
Gm
Error Amplifier Transconductance VFB=VREF±50mV
Error Amplifier DC Gain
COMP = NC
APW7143
Unit
Min
Typ
Max
-
0.5
1.5
mA
-
-
3
µA
3.9
4.1
4.3
V
-
0.5
-
V
-
0.8
-
V
-1.0
-
+1.0
%
-2.0
-
+2.0
-
+0.02
-
%/V
-
-0.04
-
%/A
450
500
550
kHz
-
80
-
kHz
-
99
-
%
-
150
-
ns
-
200
-
µA/V
-
80
-
dB
Copyright © ANPEC Electronics Corp.
3
Rev. A.1 - Apr., 2008
www.anpec.com.tw
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