MC34262, MC33262
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2
MAXIMUM RATINGS
Rating Symbol Value Unit
Total Power Supply and Zener Current (I
CC
+ I
Z
) 30 mA
Output Current, Source or Sink (Note 1) I
O
500 mA
Current Sense, Multiplier, and Voltage Feedback Inputs V
in
−1.0 to +10 V
Zero Current Detect Input
High State Forward Current
Low State Reverse Current
I
in
50
−10
mA
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
P
D
R
q
JA
P
D
R
q
JA
800
100
450
178
mW
°C/W
mW
°C/W
Operating Junction Temperature T
J
+150 °C
Operating Ambient Temperature (Note 4)
MC34262
MC33262
T
A
0 to + 85
− 40 to +105
°C
Storage Temperature T
stg
− 65 to +150 °C
ESD Protection (Note 2)
Human Body Model ESD
Machine Model ESD
Charged Device Model ESD
HBM
MM
CDM
2000
200
2000
V
V
V
Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above the
Recommended Operating Conditions is not implied. Extended exposure to stresses above the Recommended Operating Conditions may affect
device reliability.
1. Maximum package power dissipation limits must be observed.
2. ESD protection per JEDEC JESD22−A114−F for HBM, per JEDEC JESD22−A115−A for MM, and per JEDEC JESD22−C101D for CDM.
This device contains latchup protection and exceeds 100 mA per JEDEC Standard JESD78.
ELECTRICAL CHARACTERISTICS (V
CC
= 12 V (Note 3), for typical values T
A
= 25°C, for min/max values T
A
is the operating
ambient temperature range that applies (Note 4), unless otherwise noted.)
Characteristic Symbol Min Typ Max Unit
ERROR AMPLIFIER
Voltage Feedback Input Threshold
T
A
= 25°C
T
A
= T
low
to T
high
(V
CC
= 12 V to 28 V)
V
FB
2.465
2.44
2.5
−
2.535
2.54
V
Line Regulation (V
CC
= 12 V to 28 V, T
A
= 25°C) Reg
line
− 1.0 10 mV
Input Bias Current (V
FB
= 0 V) I
IB
− − 0.1 − 0.5 mA
Transconductance (T
A
= 25°C) g
m
80 100 130 mmho
Output Current
Source (V
FB
= 2.3 V)
Sink (V
FB
= 2.7 V)
I
O
−
−
10
10
−
−
mA
Output Voltage Swing
High State (V
FB
= 2.3 V)
Low State (V
FB
= 2.7 V)
V
OH(ea)
V
OL(ea)
5.8
−
6.4
1.7
−
2.4
V
OVERVOLTAGE COMPARATOR
Voltage Feedback Input Threshold V
FB(OV)
1.065 V
FB
1.08 V
FB
1.095 V
FB
V
MULTIPLIER
Input Bias Current, Pin 3 (V
FB
= 0 V) I
IB
− − 0.1 − 0.5 mA
Input Threshold, Pin 2 V
th(M)
1.05 V
OL(EA)
1.2 V
OL(EA)
− V
3. Adjust V
CC
above the startup threshold before setting to 12 V.
4. T
low
=0°C for MC34262 T
high
= +85°C for MC34262
= −40°C for MC33262 = +105°C for MC33262.
