Voltage Mode PWM Controller
AP494
Anachip Corp.
www.anachip.com.tw Rev.A3 Feb 12, 2004
3/9
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) Vref 4.85 5.0 5.15 V
Line Regulation (VCC=7.0 V to 40V) Regline - 2.0 25 mV
Load Regulation (IO=1.0mA to 20mA) Regload - 3.0 15 mV
Short Circuit Output Current (Iref=0 V) ISC 4.5 60 75 mA
OUTPUT SECTION
Collector Off-State Current (VCC=40V, VCE=40V) IC(off) - 2.0 100 µA
Emitter Off-State Current (VCC=40V, VC=40V, VE=0V) IE(off) - - -100 µA
Collector-Emitter Saturation Voltage (Note 1)
Common-Emitter (VE=0V, IC=200mA)
Emitter-Follower (VC=15V, IE=-200mA)
Vsat(C)
Vsat(E)
-
-
1.1
1.5
1.5
2.5
V
Output Control Pin Current
Low State (VOC≤0.4V)
High State (VOC=Vref)
IOCL
IOCH
-
-
10
0.2
-
3.5
µA
mA
Output Voltage Rise Time
Common-Emitter (See Figure 4)
Emitter-Follower (See Figure 5)
tr
-
-
100
100
200
200
ns
Output Voltage Fall Time
Common-Emitter (See Figure 4)
Emitter-Follower (See Figure 5)
tf
-
-
25
40
100
100
ns
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) VIO - 2.0 10 mV
Input Offset Current (VO (Pin 3)=2.5V) IIO - 5.0 250 nA
Input Bias Current (VO (Pin 3)=2.5V) IIB - -0.1 -0.1 µA
Input Common Mode Voltage Range (VCC=40V, TA=25oC) VICR -0.3 to VCC-2.0 V
Open Loop Voltage Gain (ΔVO=3.0V, VO=0.5V to 3.5V, RL=2.0 k
Ω) AVOL 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) IO- 0.3 0.7 - mA
Output Source Current (VO (Pin 3)=3.5V) IO+ -10 -15 - mA
PWM COMPARATOR SECTION (Test Circuit Figure 1)
Input Threshold Voltage (Zero Duty Cycle) VTH - 4 4.5 V
Input Sink Current (V (Pin 3)=0.7V) II- 0.3 0.7 - mA
DEADTIME CONTROL SECTION (Test Circuit Figure 1)
Input Bias Current (Pin 4)(VPin4=0V to 5.25V) IIB(DT) - -2.0 -10 µA
Maximum Duty Cycle, Each Output, Push-Pull Mode
(VPin4=0V, CT=0.01µF, RT=12 kΩ)
DCmax
45
48
50
%
Input Threshold Voltage (Pin4)
(Zero Duty Cycle)
(Maximum Duty Cycle)
Vth
-
0
2.8
-
3.3
-
V