Datasheet

 
  
SLVS077D – APRIL 1977 – REVISED FEBRUARY 2003
2
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
functional block diagram
T
COL 2
OSC OUT
EMIT 2
EMIT 1
COL 1
V
ref
Reference
Regulator
Comparator
Oscillator
SHUTDOWN
Error Amplifier
1
2
9
4
5
CURR LIM–
CURR LIM+
GND
8
10
+
–
+
–
NOTE A: Resistor values shown are nominal.
12
11
13
14
3
IN–
IN+
COMP
1 kΩ
10 kΩ
15
RT
CT
REF OUT
16
6
7
V
ref
V
ref
V
ref
V
ref
V
CC
V
ref
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)
†
Supply voltage, V
CC
(see Notes 1 and 2) 40 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Collector output current, I
CC
100 mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Reference output current, I
O(ref)
50 mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Current through CT terminal –5 mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operating virtual junction temperature, T
J
150°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Package thermal impedance, θ
JA
(see Notes 3 and 4): D package 73°C/W. . . . . . . . . . . . . . . . . . . . . . . . . . .
N package 67°C/W. . . . . . . . . . . . . . . . . . . . . . . . . . . .
NS package 64°C/W. . . . . . . . . . . . . . . . . . . . . . . . . . .
Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds 260°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Storage temperature range, T
stg
–65°C to 150°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
†
Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and
functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not
implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
NOTES: 1. All voltage values are with respect to network ground terminal.
2. The reference regulator may be bypassed for operation from a fixed 5-V supply by connecting the V
CC
and reference output
(REF OUT) pin both to the supply voltage. In this configuration, the maximum supply voltage is 6 V.
3. Maximum power dissipation is a function of T
J(max)
, θ
JA
, and T
A
. The maximum allowable power dissipation at any allowable ambient
temperature is P
D
= (T
J(max)
– T
A
)/θ
JA
. Operation at the absolute maximum T
J
of 150°C can impact reliability.
4. The package thermal impedance is calculated in accordance with JESD 51-7.