APW7080KA Просмотр технического описания (PDF) - Anpec Electronics
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APW7080KA Datasheet PDF : 23 Pages
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APW7080
Electrical Characteristics (Cont.)
Refer to the typical application circuits. These specifications apply over VIN=12V, VOUT=3.3V and TA= -40 ~ 85oC, unless otherwise
specified. VCC is regulated by an internal regulator. Typical values are at TA=25oC.
Symbol
Parameter
Test Conditions
POWER-ON-RESET (POR) AND LOCKOUT VOLTAGE THRESHOLDS
VCC POR Voltage Threshold
VCC POR Hysteresis
VCC rising
EN Lockout Voltage Threshold
EN Lockout Hysteresis
VEN rising
VIN-to-UGND Lockout Voltage
Threshold
VVIN-UGND rising
VIN-to-UGND Lockout Hysteresis
REFERENCE VOLTAGE
VREF Reference Voltage
Output Voltage Accuracy
Line Regulation
Load Regulation
OSCILLATOR AND DUTY
TJ = 25oC, IOUT=0A, VIN=12V
TJ = -40 ~ 125oC, IOUT = 0 ~ 4A,
VIN = 4.5 ~ 26V
VIN = 4.5V to 26V, IOUT = 0A
IOUT = 0 ~ 4A
FOSC Free Running Frequency
Foldback Frequency
Maximum Converter’s Duty Cycle
VIN = 4.5 ~ 26V
VFB = 0V
Minimum Pulse Width of LX
CURRENT-MODE PWM CONVERTER
VIN = 4.5 ~ 26V
Gm Error Amplifier Transconductance
Error Amplifier DC Gain
COMP = Open
Current-Sense Resistance
P-channel Power MOSFET
Resistance
Between VIN and Exposed Pad,
TJ=25oC
PROTECTIONS
P-channel Power MOSFET
ILIM
Current-limit
Peak Current
VUV FB Under-Voltage Threshold
FB Under-Voltage Hysteresis
VFB falling
FB Under-Voltage Debounce
TOTP Over-Temperature Trip Point
Over-Temperature Hysteresis
SOFT-START, ENABLE AND INPUT CURRENTS
tSS
Soft-Start Interval
Preceding Delay before Soft-Start
EN Shutdown Voltage Threshold
EN Enable Voltage Threshold
VEN falling, VIN = 4 ~ 26V
VEN rising, VIN = 4 ~ 26V
EN Pin Clamped Voltage
IEN=10mA
APW7080
Min. Typ. Max.
Unit
3.7
3.9
4.1
V
-
0.15
-
V
2.3
2.5
2.7
V
-
0.2
-
V
-
3.5
-
V
-
0.2
-
V
-
0.8
-
V
-1.0
-
+1.0
%
-2.5
-
+2.5
-
0.36
-
%
-
0.4
-
%
340
380
420
kHz
-
80
-
kHz
-
93
-
%
-
200
-
ns
-
400
-
60
80
-
-
0.12
-
µA/V
dB
Ω
-
80
100
mΩ
5.0
6.5
8.0
A
66
70
74
%
-
40
-
mV
-
2
-
µs
-
150
-
oC
-
50
-
oC
9
10.8
12
ms
9
10.8
12
ms
0.5
-
-
V
-
-
2.1
V
12
-
17
V
Copyright © ANPEC Electronics Corp.
4
Rev. A.6 - Jun., 2008
www.anpec.com.tw
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