MC33166(2002) 데이터 시트보기 (PDF) - ON Semiconductor
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MC33166 Datasheet PDF : 20 Pages
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MC34166, MC33166
ELECTRICAL CHARACTERISTICS (VCC = 12 V, for typical values TA = +25°C, for min/max values TA is the operating ambient
temperature range that applies [Notes 4, 5], unless otherwise noted.)
Characteristic
Symbol
Min
Typ
Max
Unit
OSCILLATOR
Frequency (VCC = 7.5 V to 40 V)
TA = +25°C
TA = Tlow to Thigh
fOSC
65
72
79
kHz
62
–
81
ERROR AMPLIFIER
Voltage Feedback Input Threshold
TA = +25°C
TA = Tlow to Thigh
Line Regulation (VCC = 7.5 V to 40 V, TA = +25°C)
Input Bias Current (VFB = VFB(th) + 0.15 V)
Power Supply Rejection Ratio (VCC = 10 V to 20 V, f = 120 Hz)
Output Voltage Swing
High State (ISource = 75 µA, VFB = 4.5 V)
Low State (ISink = 0.4 mA, VFB = 5.5 V)
PWM COMPARATOR
Duty Cycle
Maximum (VFB = 0 V)
Minimum (VComp = 1.9 V)
SWITCH OUTPUT
Output Voltage Source Saturation (VCC = 7.5 V, ISource = 3.0 A)
VFB(th)
Regline
IIB
PSRR
VOH
VOL
4.95
4.85
–
–
60
4.2
–
DC(max)
92
DC(min)
0
Vsat
–
5.05
5.15
V
–
5.2
0.03
0.078
%/V
0.15
1.0
µA
80
–
dB
V
4.9
–
1.6
1.9
%
95
100
0
0
(VCC
(VCC
V
–1.5)
–1.8)
Off–State Leakage (VCC = 40 V, Pin 2 = Gnd)
Isw(off)
–
0
100
µA
Current Limit Threshold
Ipk(switch)
3.3
4.3
6.0
A
Switching Times (VCC = 40 V, Ipk = 3.0 A, L = 375 µH, TA = +25°C)
Output Voltage Rise Time
Output Voltage Fall Time
ns
tr
–
100
200
tf
–
50
100
UNDERVOLTAGE LOCKOUT
Startup Threshold (VCC Increasing, TA = +25°C)
Vth(UVLO)
5.5
5.9
6.3
V
Hysteresis (VCC Decreasing, TA = +25°C)
VH(UVLO)
0.6
0.9
1.2
V
TOTAL DEVICE
Power Supply Current (TA = +25°C )
Standby (VCC = 12 V, VComp < 0.15 V)
Operating (VCC = 40 V, Pin 1 = Gnd for maximum duty cycle)
ICC
–
36
100
µA
–
31
55
mA
4. Low duty cycle pulse techniques are used during test to maintain junction temperature as close to ambient as possible.
5. Tlow = 0°C for MC34166
= – 40°C for MC33166
Thigh = + 70°C for MC34166
= + 85°C for MC33166
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