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APW6021 Datenblatt(PDF) 5 Page - Anpec Electronics Coropration

Teilenummer APW6021
Bauteilbeschribung  Advanced PWM and Triple Linear Power Controllers
PDF  13 Pages
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Hersteller  ANPEC [Anpec Electronics Coropration]
Direct Link  http://www.anpec.com.tw
Logo ANPEC - Anpec Electronics Coropration

APW6021 Datenblatt(HTML) 5 Page - Anpec Electronics Coropration

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Copyright  ANPEC Electronics Corp.
Rev. P.4 - Mar., 2001
APW6021
www.anpec.com.tw
5
Electrical Characteristics Cont.
Functional Pin Description
DRIVE2 (Pin 1)
Connect this pin to the gate of an external MOSFET.
This pin provides the drive for the AGP regulator’s
pass transistor.
FIX (Pin 2)
Grounding this pin bypasses the internal resistor di-
viders that set the output voltage of the 1.5V and 1.
8V linear regulators. This way, the output voltage of
the two regulators can be adjusted from 1.26V up to
the input voltage (+3.3V or +5V) by way of an exter-
nal resistor divider connected at the corresponding
VSEN pin. The new output voltage set by the exter-
nal resistor divider can be determined using the fol-
lowing formula:
V
OUT =1.265V × [1+ROUT/ RGND ]
where R
OUT is the resistor connected from VSEN to
the output of the regulator, and R
GND is the resistor
connected from VSEN to ground. Left open, the FIX
pin is pulled high, enabling fixed output voltage
operation.
APW6021
Symbol
Parameter
Test Conditions
Min.
Typ.
Max.
Unit
Synchronous PWM Controller Error Amplifier
DC Gain
88
dB
GBWP Gain-Bandwidth Product
15
MHz
SR
Slew Rate
COMP=10pF
6
V/
µs
PWM Controller Gate Driver
I
UGATE
UGATE Source
V
CC=12V, VUGATE =6V
1
A
R
UGATE
UGATE Sink
V
UGATE1-PHASE =1V
3.5
Ω
I
LGATE
LGATE Source
V
CC=12V, VLGATE =1V
1
A
R
LGATE
LGATE Sink
V
LGATE= 1V
3
Ω
Protection
VSEN1 Over-Voltage
(VSEN1/DACOUT)
VSEN1 Rising
115
120
%
I
OVP
FAULT Souring Current
V
FAULT/RT=2.0V
8.5
mA
I
OCSET
OCSET1 Current Source
V
OCSET= 4.5VDC
170
200
230
µA
I
SS
Soft Start Current
28
µA
Power Good
VSEN1 Upper Threshold
(VSEN1/DACOUT)
VSEN1 Rising
108
110
%
VSEN1 Under Voltage
(VSEN1/DACOUT)
VSEN1 Rising
92
94
%
VSEN1 Hysteresis (VSEN1
/DACOUT)
Upper /Lower Threshold
2
%
V
PGOOD
PGOOD Voltage Low
I
PGOOD= -4mA
0.8
V



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