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APW7158 Datasheet(PDF) 4 Page - Anpec Electronics Coropration

Part # APW7158
Description  Dual Synchronous Buck PWM Controllers
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Manufacturer  ANPEC [Anpec Electronics Coropration]
Direct Link  http://www.anpec.com.tw
Logo ANPEC - Anpec Electronics Coropration

APW7158 Datasheet(HTML) 4 Page - Anpec Electronics Coropration

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Copyright
© ANPEC Electronics Corp.
Rev. A.2 - Aug., 2009
APW7158
www.anpec.com.tw
4
Operating Conditions: VCC = 5V, VCC12 = 12V, TA = -20 to 70°C. Typical values are at TA =25°C. Unless Otherwise Specified.
APW7158
Symbol
Parameter
Test Conditions
Min.
Typ.
Max.
Unit
ERROR AMPLIFIER (OUT1 AND OUT2) (CONT.)
Maximum COMP High Voltage
COMP1/2, RL = 10k
Ω to ground; (may trip
short-circuit)
-
VCC
-
V
COMP Source Current
COMP1/2, VCOMP=2V
-
-50
-
mA
COMP Sink Current
COMP1/2, VCOMP=2V
-
45
-
mA
PROTECTION AND MONITOR
Short-Circuit Protection
Threshold
VCOMP1 and VCOMP2 rising
-
3.3
-
V
Short-Circuit Protection Filter
Time
Based on internal oscillator clock
frequency (nominal 300kHz = 3.3
µs clock
period)
1
-
2
Clock
pulses
VREF
VREF
VREF Output Voltage
-
3.3
-
V
VREF Output Accuracy
-0.8
-
0.8
%
VREF Source Current
-
-
2.0
mA
REFOUT
VREFOUT
REFOUT Output Voltage
Determined by REFIN voltage
0.6
-
3.3
V
REFOUT Offset Voltage
-10
-
10
mV
REFOUT Source Current
-
-
20
mA
REFOUT Sink Current
-
-
0.48
mA
REFOUT Output Capacitance
0.4
0.1
2.2
µF
ENABLE/SOFT-START (SS/EN 1,2)
High level input voltage
2
-
-
V
Enable Threshold Voltage
Low level input voltage
-
-
0.4
SS/EN Pin Soft-Start Current
-
-30
-
µA
Soft-Start High Voltage
End of ramp
-
3.5
-
V
GATE DRIVERS
OUT1 GATE Driver Source
VUGATE1, VLGATE1=3V, VBOOT=12V
-
1.8
-
A
OUT2 GATE Driver Source
VUGATE2, VLGATE2=3V, VBOOT=12V
-
1
-
A
OUT1 GATE Driver Sink
VUGATE1, VLGATE1=3V, VCC12=12V
-
2.5
-
OUT2 GATE Driver Sink
VUGATE2, VLGATE2=3V, VCC12=12V
-
4
-
Electrical Characteristics (Cont.)


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