AP494 查看數據表（PDF） - Anachip Corporation
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AP494 Datasheet PDF : 9 Pages
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Voltage Mode PWM Controller
AP494
Electrical Characteristics
(VCC=15V, CT=0.01µF, RT=12 KΩ, unless otherwise noted.) For typical values TA=25oC, for min/max values TA is the operating ambient
temperature range that applies, unless otherwise noted)
Characteristics
Symbol Min Typ Max Unit
REFERENCE SECTION
Reference Voltage (IO=1.0mA)
Line Regulation (VCC=7.0 V to 40V)
Load Regulation (IO=1.0mA to 20mA)
Short Circuit Output Current (Iref=0 V)
Vref 4.85 5.0 5.15 V
Regline
-
2.0 25 mV
Regload
-
3.0 15 mV
ISC
4.5 60 75 mA
OUTPUT SECTION
Collector Off-State Current (VCC=40V, VCE=40V)
Emitter Off-State Current (VCC=40V, VC=40V, VE=0V)
Collector-Emitter Saturation Voltage (Note 1)
IC(off)
-
2.0 100 µA
IE(off)
-
- -100 µA
Common-Emitter (VE=0V, IC=200mA)
Emitter-Follower (VC=15V, IE=-200mA)
Output Control Pin Current
Vsat(C)
-
Vsat(E)
-
1.1 1.5 V
1.5 2.5
Low State (VOC≤0.4V)
High State (VOC=Vref)
Output Voltage Rise Time
IOCL
-
10
-
µA
IOCH
-
0.2 3.5 mA
Common-Emitter (See Figure 4)
Emitter-Follower (See Figure 5)
tr
- 100 200 ns
- 100 200
Output Voltage Fall Time
Common-Emitter (See Figure 4)
Emitter-Follower (See Figure 5)
tf
-
25 100 ns
-
40 100
NOTE: 1. Low duty cycle pulse techniques are used during test to maintain junction temperature as close to ambient temperature as
possible.
ERROR AMPLIFIER SECTION
Input Offset Voltage (VO (Pin 3)=2.5V)
Input Offset Current (VO (Pin 3)=2.5V)
Input Bias Current (VO (Pin 3)=2.5V)
Input Common Mode Voltage Range (VCC=40V, TA=25oC)
Open Loop Voltage Gain (ΔVO=3.0V, VO=0.5V to 3.5V, RL=2.0 k
Ω)
VIO
IIO
IIB
VICR
AVOL
-
2.0 10 mV
-
5.0 250 nA
- -0.1 -0.1 µA
-0.3 to VCC-2.0
V
70 95
-
dB
Unity-Gain Crossover Frequency (VO=0.5V to 3.5V, RL=2.0 kΩ)
fC
- 350 - kHz
Common Mode Rejection Ratio (VCC=40V)
CMRR 64 90
-
dB
Output Sink Current (VO (Pin 3)=0.7V)
Output Source Current (VO (Pin 3)=3.5V)
IO-
0.3 0.7
- mA
IO+
-10 -15
-
mA
PWM COMPARATOR SECTION (Test Circuit Figure 1)
Input Threshold Voltage (Zero Duty Cycle)
Input Sink Current (V (Pin 3)=0.7V)
VTH
-
4 4.5 V
II-
0.3 0.7 - mA
DEADTIME CONTROL SECTION (Test Circuit Figure 1)
Input Bias Current (Pin 4)(VPin4=0V to 5.25V)
Maximum Duty Cycle, Each Output, Push-Pull Mode
(VPin4=0V, CT=0.01µF, RT=12 kΩ)
IIB(DT)
- -2.0 -10 µA
DCmax
%
45 48 50
Input Threshold Voltage (Pin4)
(Zero Duty Cycle)
Vth
V
- 2.8 3.3
(Maximum Duty Cycle)
0
-
-
Anachip Corp.
www.anachip.com.tw
Rev.1.0 Oct 11, 2004
3/9
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