MC34262, MC33262
ELECTRICAL CHARACTERISTICS
(continued)
(V
CC
= 12 V (Note 5), for typical values T
A
= 25°C, for min/max values T
A
is the
operating ambient temperature range that applies (Note 6), unless otherwise noted.)
Characteristic
MULTIPLIER
Dynamic Input Voltage Range
Multiplier Input (Pin 3)
Compensation (Pin 2)
Multiplier Gain (V
Pin 3
= 0.5 V, V
Pin 2
= V
th(M)
+ 1.0 V) (Note 7)
ZERO CURRENT DETECTOR
Input Threshold Voltage (V
in
Increasing)
Hysteresis (V
in
Decreasing)
Input Clamp Voltage
High State (I
DET
= + 3.0 mA)
Low State (I
DET
= − 3.0 mA)
CURRENT SENSE COMPARATOR
Input Bias Current (V
Pin 4
= 0 V)
Input Offset Voltage (V
Pin 2
= 1.1 V, V
Pin 3
= 0 V)
Maximum Current Sense Input Threshold (Note 8)
Delay to Output
DRIVE OUTPUT
Output Voltage (V
CC
= 12 V)
Low State
(I
Sink
= 20 mA)
Low State
(I
Sink
= 200 mA)
High State (I
Source
= 20 mA)
High State
(I
Source
= 200 mA)
Output Voltage (V
CC
= 30 V)
High State (I
Source
= 20 mA, C
L
= 15 pF)
Output Voltage Rise Time (C
L
= 1.0 nF)
Output Voltage Fall Time (C
L
= 1.0 nF)
Output Voltage with UVLO Activated
(V
CC
= 7.0 V, I
Sink
= 1.0 mA)
RESTART TIMER
Restart Time Delay
UNDERVOLTAGE LOCKOUT
Startup Threshold (V
CC
Increasing)
Minimum Operating Voltage After Turn−On (V
CC
Decreasing)
Hysteresis
TOTAL DEVICE
Power Supply Current
Startup (V
CC
= 7.0 V)
Operating
Dynamic Operating (50 kHz, C
L
= 1.0 nF)
Power Supply Zener Voltage (I
CC
= 25 mA)
I
CC
−
−
−
V
Z
30
0.25
6.5
9.0
36
0.4
12
20
−
V
mA
V
th(on)
V
Shutdown
V
H
11.5
7.0
3.8
13
8.0
5.0
14.5
9.0
6.2
V
V
V
t
DLY
200
620
−
ms
V
V
OL
V
OH
V
O(max)
14
t
r
t
f
V
O(UVLO)
−
−
−
16
50
50
0.1
18
120
120
0.5
ns
ns
V
−
−
9.8
7.8
0.3
2.4
10.3
8.4
0.8
3.3
−
−
V
I
IB
V
IO
V
th(max)
t
PHL(in/out)
−
−
1.3
−
− 0.15
9.0
1.5
200
−1.0
25
1.8
400
mA
mV
V
ns
V
th
V
H
V
IH
V
IL
1.33
100
6.1
0.3
1.6
200
6.7
0.7
1.87
300
−
1.0
V
mV
V
V
V
Pin 3
V
Pin 2
K
0 to 2.5
V
th(M)
to
(V
th(M)
+ 1.0)
0.43
0 to 3.5
V
th(M)
to
(V
th(M)
+ 1.5)
0.65
−
−
0.87
1/V
Symbol
Min
Typ
Max
Unit
4. Maximum package power dissipation limits must be observed.
5. Adjust V
CC
above the startup threshold before setting to 12 V.
6. T
low
= 0°C for MC34262
T
high
= +85°C for MC34262
= −40°C for MC33262
= +105°C for MC33262.
Pin 4 Threshold
7. K
+
VPin 3 (VPin2
*
Vth(M))
8. This parameter is measured with V
FB
= 0 V, and V
Pin 3
= 3.0 V.
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