MC44603 Datasheet, PDF (3/24 Pages) ON Semiconductor – MIXED FREQUENCY MODE GREENLINE PWM CONTROLLER

MC44603
ELECTRICAL CHARACTERISTICS (continued) (VCC and VC = 12 V, [Note 3], Rref = 10 kΩ, CT = 820 pF, for typical values TA = 25°C,
for min/max values TA = –25° to +85°C [Note 4], unless otherwise noted.)
Characteristic
Symbol
Min
Typ
Max
Unit
ERROR AMPLIFIER SECTION (continued)
Unity Gain Bandwidth
TJ = 25°C
TJ = –25° to +85°C
BW
MHz
–
4.0
–
–
–
5.5
Voltage Feedback Input Line Regulation (VCC = 10 to 15 V)
Output Current
Sink (VE/A _out = 1.5 V, VFB = 2.7 V)
TA = –25° to +85°C
Source (VE/A _out = 5.0 V, VFB = 2.3 V)
TA = –25° to +85°C
VFBline–reg
–10
–
ISink
2.0
12
10
mV
mA
–
ISource
–2.0
–
–0.2
Output Voltage Swing
High State (IE/A _{out (source)} = 0.5 mA, VFB = 2.3 V)
Low State (IE/A _{out (sink)} = 0.33 mA, VFB = 2.7 V)
REFERENCE SECTION
VOH
VOL
V
5.5
6.5
7.5
–
1.0
1.1
Reference Output Voltage (VCC = 10 to 15 V)
Reference Current Range (Iref = Vref/Rref, R = 5.0 k to 25 kΩ)
Reference Voltage Over Iref Range
OSCILLATOR AND SYNCHRONIZATION SECTION
Vref
Iref
∆Vref
2.4
2.5
2.6
V
–500
–
–100
µA
–40
–
40
mV
Frequency
TA = 0° to +70°C
TA = –25° to +85°C
Frequency Change with Voltage (VCC = 10 to 15 V)
Frequency Change with Temperature (TA = –25° to +85°C)
Oscillator Voltage Swing (Peak–to–Peak)
Ratio Charge Current/Reference Current
TA = 0° to +70°C (VCT = 2.0 V)
TA = –25° to +85°C
Fixed Maximum Duty Cycle = Idischarge/(Idischarge + Icharge)
Ratio Standby Discharge Current versus IR _{F Stby} (Note 6)
TA = 0° to +70°C
TA = –25° to +85°C (Note 8)
VR _{F Stby} (IR _{F Stby} = 100 µA)
Frequency in Standby Mode (RF _Stby (Pin 15) = 25 kΩ)
Current Range
Synchronization Input Threshold Voltage (Note 7)
fOSC
kHz
44.5
48
51.5
44
–
52
∆fOSC/∆V
–
0.05
–
%/V
∆fOSC/∆T
–
0.05
–
%/°C
VOSC(pp)
1.65
1.8
1.95
V
Icharge/Iref
–
0.375
0.4
0.425
0.37
–
0.43
D
78
80
82
%
Idisch–Stby/
–
IR _{F Stby}
0.46
0.53
0.6
0.43
–
0.63
VR _{F Stby}
2.4
2.5
FStby
18
21
IR _{F Stby}
–200
–
VinthH
VinthL
3.2
3.7
0.45
0.7
2.6
V
24
kHz
–50
µA
4.3
V
0.9
Synchronization Input Current
Minimum Synchronization Pulse Width (Note 8)
UNDERVOLTAGE LOCKOUT SECTION
ISync–in
–5.0
–
TSync
–
–
0
µA
0.5
µs
Startup Threshold
Output Disable Voltage After Threshold Turn–On (UVLO 1)
TA = 0° to +70°C
TA = –25° to +85°C
Reference Disable Voltage After Threshold Turn–On (UVLO 2)
Vstup–th
13.6
14.5
15.4
V
Vdisable1
V
8.6
9.0
9.4
8.3
–
9.6
Vdisable2
7.0
7.5
8.0
V
NOTES: 13. Adjust VCC above the startup threshold before setting to 12 V.
14. Low duty cycle pulse techniques are used during test to maintain junction temperature as close to ambient as possible.
16. Standby is disabled for VR _{P Stby} < 25 mV typical.
17. If not used, Synchronization input must be connected to Ground.
18. Synchronization Pulse Width must be shorter than TOSC = 1/fOSC.
MOTOROLA ANALOG IC DEVICE DATA
3