MC34166 ON Semiconductor, MC34166 Datasheet - Page 3

• Manufacturer Part Number: MC34166
• Description: (MC33166 / MC34166) Step-Up/Down/Inverting Switching Regulators
• Manufacturer: ON Semiconductor

3. Low duty cycle pulse techniques are used during test to maintain junction temperature as close to ambient as possible.
4. T
ELECTRICAL CHARACTERISTICS
temperature range that applies [Notes 3, 4], unless otherwise noted.)
OSCILLATOR
ERROR AMPLIFIER
PWM COMPARATOR
SWITCH OUTPUT
UNDERVOLTAGE LOCKOUT
TOTAL DEVICE
Frequency (V
Voltage Feedback Input Threshold
Line Regulation (V
Input Bias Current (V
Power Supply Rejection Ratio (V
Output Voltage Swing
Duty Cycle
Output Voltage Source Saturation (V
Off−State Leakage (V
Current Limit Threshold
Switching Times (V
Startup Threshold (V
Hysteresis (V
Power Supply Current (T
High State (I
Low State (I
Maximum (V
Minimum (V
Output Voltage Rise Time
Output Voltage Fall Time
Standby (V
Operating (V
low
= 0°C for MC34166
= − 40°C for MC33166
CC
CC
CC
Sink
Comp
Source
FB
CC
= 7.5 V to 40 V)
= 12 V, V
Decreasing, T
= 0 V)
= 40 V, Pin 1 = GND for maximum duty cycle)
CC
= 0.4 mA, V
CC
= 1.9 V)
FB
= 75 mA, V
CC
= 7.5 V to 40 V, T
CC
= 40 V, I
= V
A
Increasing, T
= 40 V, Pin 2 = GND)
Characteristic
Comp
= +25°C )
FB(th)
FB
pk
A
< 0.15 V)
FB
CC
= +25°C)
+ 0.15 V)
= 5.5 V)
= 3.0 A, L = 375 mH, T
= 4.5 V)
= 10 V to 20 V, f = 120 Hz)
CC
A
A
= +25°C)
= 7.5 V, I
= +25°C)
(V
T
high
CC
= 12 V, for typical values T
= + 70°C for MC34166
= + 85°C for MC33166
T
T
T
T
A
A
A
A
Source
= +25°C
= T
= +25°C
= T
MC34166, MC33166
low
low
= 3.0 A)
A
http://onsemi.com
= +25°C)
to T
to T
high
high
3
V
V
I
A
Symbol
DC
pk(switch)
DC
Reg
V
PSRR
I
th(UVLO)
H(UVLO)
= +25°C, for min/max values T
f
sw(off)
V
V
V
FB(th)
OSC
I
I
CC
(max)
IB
OH
t
t
OL
(min)
sat
r
f
line
4.95
4.85
Min
4.2
3.3
5.5
0.6
65
62
60
92
−
−
−
0
−
−
−
−
−
−
(V
CC
5.05
0.03
0.15
Typ
100
4.9
1.6
4.3
5.9
0.9
72
80
95
50
36
31
−
−
0
0
A
−1.5)
is the operating ambient
(V
CC
0.078
Max
5.15
100
100
200
100
100
5.2
1.0
1.9
6.0
6.3
1.2
79
81
55
−
−
0
−1.8)
Unit
%/V
kHz
mA
dB
mA
mA
mA
ns
%
V
V
V
A
V
V