NTE NTE1841

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–Fixed – No External Adjustment is Required
Absolute Maximum Ratings:
Peak Input Voltage, VIN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 550V
Input Current, IIN
Continuous . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6A
Pulse . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12A
Power Dissipation (TC = +100°C), PD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27W
Maximum Power Transistor Junction Temperature, TJ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +150°C
Operating Temperature Range (TC), Topr . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –20° to +125°C
Storage Temperature Range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –30° to +125°C
Electrical Characteristics: (TA = +25°C unles otherwise specified)
Parameter
Symbol
Output Voltage
VO
Detecting Voltage (Fixed Output)
NTE1840
VO
Test Conditions
Min
Typ
Max
Unit
VIN = 120V, IO = 900mA
114.5
116.0
117.5
V
Iin = 7mA
41.3
41.8
42.3
V
42.5
43.0
43.5
V
NTE1841
Load Regulation
V
TC = –20° to +100°C, Iin = 7mA
–
±2
–
mV/°C
VCE(sat)
IC = 2A, IB = 400mA
–
–
1.0
V
VBE(sat)
IC = 2A, IB = 400mA
–
–
1.5
V
Output Voltage Temperature
Coefficient
Saturation Voltage
Initial Value ±1
RegLOAD VIN = 120V, IO = 500mA to 900mA
DC Current Gain
hFE
IC = 1A, VCE = 4V
10
–
40
Collector Cutoff Current
ICEX
VCE = 550V, VBE = –1.5V
–
–
1.0
mA
Power Transistor Thermal
Resistance
RthJC
Between Junction and Stem
Upper Surface
–
1.8
–
°C/W
IC = 2A, IB1 = 300mA, IB2 = 300mA,
RL = 50Ω
Ω
–
–
12
µs
–
–
7
µs
Switching Time
ts
tf
Note 1. Recommended Case Temperature: Topr = +100°C.
Pin Connection Diagram
(Front View)
5 VOUT Continuous
4 Common (E)
3 Input (C)
2 Base Drive (–)
1 VOUT Sense (–)
.700 (17.7)
.177 (4.5)
.700 (17.7)
.177 (4.5)
.196
(5.0)
1.101
(527.9)
1
2
3
4
OR
5
1
2
3
4
5
1.691
(42.9)
.133 (3.4)
.276
(7.0)
.590
(15.0)
.237
(6.0)
.100 (2.54)
.150 (3.8)
.500 (12.7)
.100 (2.54)
.150
(3.8)
.500 (12.7)
.177
(4.5)