APW7078 Ver la hoja de datos (PDF) - Anpec Electronics
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APW7078 Datasheet PDF : 16 Pages
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APW7078
Electrical Characteristics (TA = 25°C, VDD = 3.3V, unless otherwise specified)
Symbol
Parameter
Test Conditions
Entire Device
VDD Supply Voltage
IDD Supply Current
VDD=2.3V to 5.5V
ISD Shutdown Current
CTL pin open or VDD
Dmax Maximum Duty Cycle
Rt=3.3K, Ct=270pF
Under Voltage Lockout Protection
VTH
VDD Startup Threshold
Voltage
-
VR Hysteresis voltage
Soft-Start
Vss
Voltage at Soft-Start
completion
-
Ics Soft-Start Charge Current Vscp=0V
Short Circuit Protection(SCP)
Vscp Threshold Voltage
Iscp Charge Current
Vscp=0V
Sawtooth waveform oscillator(OSC)
Fosc Oscillator Frequency
Rt=3.3KΩ, Ct=270pF
Fdv
Frequency Stability for
Voltage
Fdt
Frequency Stability for
Temperature
Error Amplifier
VDD=2.3V to 5.5V
Ta=-40°C to 85°C
Vref Reference Voltage
VFB=INV
Vref/dV Vref stability
Vref/dT
Vref variation with
Temperature
gm Transconductance
VDD=2.3V to 5.5V
Ta=-40°C to 85°C
IB Input Bias Current
INV=0V
VOH
-
Output Voltage Range
VOL
-
Output Source Current
INV=0V,FB=0.5V
Output Sink Current
INV=1V,FB=0.5V
APW7078
Min Typ Max
Unit
2.3
5.5
V
0.7
1
mA
0.1
1
µA
80
85
92
%
1.9 2.0 2.1
V
-
1.8 1.9
V
0.7 0.8 0.9
V
-0.7 -1.0 -1.5
µA
0.7 0.8 0.9
V
-0.7 -1.0 -1.5
µA
500 600 700
KHz
-
2
5
%
-
5
-
%
0.49
1000
1.6
-150
140
0.5
5
1
1300
1.8
-180
170
0.51
20
1600
1
0.01
-210
200
V
mV
%
µA/V
µA
V
V
µA
µA
C opyright © ANPEC Electronics C orp.
3
Rev. A.3 - Nov., 2005
www.anpec.com.tw
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