MC34262, MC33262
MAXIMUM RATINGS
Rating
Total Power Supply and Zener Current
Output Current, Source or Sink (Note 1)
Current Sense, Multiplier, and Voltage Feedback Inputs
Zero Current Detect Input
High State Forward Current
Low State Reverse Current
Power Dissipation and Thermal Characteristics
P Suffix, Plastic Package, Case 626
Maximum Power Dissipation @ T
A
= 70°C
Thermal Resistance, Junction−to−Air
D Suffix, Plastic Package, Case 751
Maximum Power Dissipation @ T
A
= 70°C
Thermal Resistance, Junction−to−Air
Operating Junction Temperature
Operating Ambient Temperature (Note 3)
MC34262
MC33262
Storage Temperature
Symbol
(I
CC
+ I
Z
)
I
O
V
in
I
in
50
−10
Value
30
500
−1.0 to +10
Unit
mA
mA
V
mA
P
D
R
qJA
P
D
R
qJA
T
J
T
A
800
100
450
178
+150
0 to + 85
− 40 to +105
mW
°C/W
mW
°C/W
°C
°C
T
stg
− 65 to +150
°C
Maximum ratings are those values beyond which device damage can occur. Maximum ratings applied to the device are individual stress limit values
(not normal operating conditions) and are not valid simultaneously. If these limits are exceeded, device functional operation is not implied, damage
may occur and reliability may be affected.
ELECTRICAL CHARACTERISTICS
(V
CC
= 12 V (Note 2), for typical values T
A
= 25°C, for min/max values T
A
is the operating
ambient temperature range that applies (Note 3), unless otherwise noted.)
Characteristic
ERROR AMPLIFIER
Voltage Feedback Input Threshold
T
A
= 25°C
T
A
= T
low
to T
high
(V
CC
= 12 V to 28 V)
Line Regulation (V
CC
= 12 V to 28 V, T
A
= 25°C)
Input Bias Current (V
FB
= 0 V)
Transconductance (T
A
= 25°C)
Output Current
Source (V
FB
= 2.3 V)
Sink (V
FB
= 2.7 V)
Output Voltage Swing
High State (V
FB
= 2.3 V)
Low State (V
FB
= 2.7 V)
OVERVOLTAGE COMPARATOR
Voltage Feedback Input Threshold
MULTIPLIER
Input Bias Current, Pin 3 (V
FB
= 0 V)
Input Threshold, Pin 2
I
IB
V
th(M)
−
1.05 V
OL(EA)
− 0.1
1.2 V
OL(EA)
− 0.5
−
mA
V
V
FB(OV)
1.065 V
FB
1.08 V
FB
1.095 V
FB
V
V
FB
2.465
2.44
Reg
line
I
IB
g
m
I
O
−
−
V
OH(ea)
V
OL(ea)
5.8
−
10
10
6.4
1.7
−
−
V
−
2.4
−
−
80
2.5
−
1.0
− 0.1
100
2.535
2.54
10
− 0.5
130
mV
mA
mmho
mA
V
Symbol
Min
Typ
Max
Unit
1. Maximum package power dissipation limits must be observed.
2. Adjust V
CC
above the startup threshold before setting to 12 V.
3. T
low
= 0°C for MC34262
T
high
= +85°C for MC34262
= −40°C for MC33262
= +105°C for MC33262.
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