NTE NTE1841, NTE1840 Datasheet

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, V
Input Current, I

IN

Continuous 6A. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Pulse 12A. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Power Dissipation (TC = +100°C), P
Maximum Power Transistor Junction Temperature, T
Operating Temperature Range (T
Storage Temperature Range, T

IN

stg

C

D

), T

J

opr

550V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

27W. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

+150°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

–20° to +125°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

–30° to +125°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Electrical Characteristics:

Parameter Symbol Test Conditions Min Typ Max Unit

Output Voltage V
Detecting Voltage (Fixed Output)

NTE1840

NTE1841 42.5 43.0 43.5 V
Load Regulation Reg
Output Voltage Temperature

Coefficient

Saturation Voltage V

DC Current Gain h
Collector Cutoff Current I
Power Transistor Thermal

Resistance

Switching Time t

Note 1. Recommended Case Temperature: T

(TA = +25°C unles otherwise specified)

VIN = 120V, IO = 900mA 114.5 116.0 117.5 V

O

V

O

Iin = 7mA 41.3 41.8 42.3 V

LOADVIN

CE(sat)IC

V

BE(sat)IC

FE

CEX

R

thJC

s

t

f

= 120V, IO = 500mA to 900mA Initial Value ±1 V

TC = –20° to +100°C, Iin = 7mA – ±2 – mV/°C

= 2A, IB = 400mA – – 1.0 V

= 2A, IB = 400mA – – 1.5 V
IC = 1A, VCE = 4V 10 – 40
VCE = 550V, VBE = –1.5V – – 1.0 mA
Between Junction and Stem

Upper Surface
IC = 2A, IB1 = 300mA, IB2 = 300mA,

RL = 50Ω

= +100°C.

opr

– 1.8 – °C/W

– – 12 µs
– – 7 µs

Pin Connection Diagram

(Front View)

5
4
3
2
1

Continuous

V

OUT

Common (E)
Input (C)

Base Drive (–)

V

Sense (–)

OUT

.700 (17.7) .177 (4.5)

.196
(5.0)

12 3 45

.133 (3.4)

.150 (3.8).100 (2.54)

.500 (12.7)

1.101

(527.9)

.590

(15.0)

OR

.100 (2.54)

.700 (17.7) .177 (4.5)

1.691

12 3 45

.500 (12.7)

(42.9)

.150
(3.8)

.276
(7.0)

.237
(6.0)

.177
(4.5)