NTE1840 & NTE1841
Integrated Circuit
Hybrid Switching Voltage Regulator
Features:
D
Triple Diffused Transistor Chips Incorporated
D
Compact Plastic Package with Industry Standard Reliability
D
Output Voltage is Pre鈥揊ixed 鈥?No External Adjustment is Required
Absolute Maximum Ratings:
Peak Input Voltage, V
IN
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 550V
Input Current, I
IN
Continuous . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6A
Pulse . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12A
Power Dissipation (T
C
= +100擄C), P
D
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27W
Maximum Power Transistor Junction Temperature, T
J
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +150擄C
Operating Temperature Range (T
C
), T
opr
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 鈥?0擄 to +125擄C
Storage Temperature Range, T
stg
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 鈥?0擄 to +125擄C
Electrical Characteristics:
(T
A
= +25擄C unles otherwise specified)
Parameter
Output Voltage
Detecting Voltage (Fixed Output)
NTE1840
NTE1841
Load Regulation
Output Voltage Temperature
Coefficient
Saturation Voltage
V
CE(sat)
V
BE(sat)
DC Current Gain
Collector Cutoff Current
Power Transistor Thermal
Resistance
Switching Time
h
FE
I
CEX
R
thJC
t
s
t
f
Reg
LOAD
V
IN
= 120V, I
O
= 500mA to 900mA
T
C
= 鈥?0擄 to +100擄C, I
in
= 7mA
I
C
= 2A, I
B
= 400mA
I
C
= 2A, I
B
= 400mA
I
C
= 1A, V
CE
= 4V
V
CE
= 550V, V
BE
= 鈥?.5V
Between Junction and Stem
Upper Surface
I
C
= 2A, I
B1
= 300mA, I
B2
= 300mA,
R
L
= 50鈩?/div>
鈩?/div>
鈥?/div>
鈥?/div>
鈥?/div>
10
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
Symbol
V
O
V
O
Test Conditions
V
IN
= 120V, I
O
= 900mA
I
in
= 7mA
Min
114.5
41.3
42.5
Typ
116.0
41.8
43.0
鹵2
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
1.8
鈥?/div>
鈥?/div>
Max
117.5
42.3
43.5
Unit
V
V
V
V
鈥?/div>
1.0
1.5
40
1.0
鈥?/div>
12
7
mA
擄C/W
碌s
碌s
mV/擄C
V
V
Initial Value
鹵1
Note 1. Recommended Case Temperature: T
opr
= +100擄C.
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