ꢀ ꢁꢂꢃ ꢂꢄ ꢅ ꢀꢁꢆ ꢃ ꢂꢄ
ꢇ ꢈꢁꢉ ꢊ ꢋꢌ ꢍ ꢎ ꢁ ꢏꢉ ꢊꢀ ꢈꢐꢑ ꢍ ꢒꢌ ꢓ ꢔꢕ ꢒꢉ ꢊꢋꢌꢕ ꢇꢀ
SLVS077D – APRIL 1977 – REVISED FEBRUARY 2003
functional block diagram
15
16
12
Reference
Regulator
V
CC
REF OUT
COL 1
V
ref
V
ref
11
13
EMIT 1
COL 2
T
V
ref
14
3
6
7
EMIT 2
OSC OUT
RT
CT
Oscillator
V
ref
V
ref
1
2
–
IN–
+
Comparator
IN+
9
Error Amplifier
COMP
V
ref
4
5
CURR LIM+
+
–
CURR LIM–
10
8
SHUTDOWN
GND
1 kΩ
10 kΩ
NOTE A: Resistor values shown are nominal.
†
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)
Supply voltage, V
Collector output current, I
Reference output current, I
(see Notes 1 and 2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40 V
CC
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100 mA
CC
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50 mA
O(ref)
Current through CT terminal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –5 mA
Operating virtual junction temperature, T . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 150°C
J
Package thermal impedance, θ (see Notes 3 and 4): D package . . . . . . . . . . . . . . . . . . . . . . . . . . . 73°C/W
JA
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
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –65°C to 150°C
stg
†
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
(REF OUT) pin both to the supply voltage. In this configuration, the maximum supply voltage is 6 V.
and reference output
CC
3. Maximum power dissipation is a function of T
, θ , and T . The maximum allowable power dissipation at any allowable ambient
J(max) JA
A
temperature is P = (T
J(max)
– T )/θ . Operation at the absolute maximum T of 150°C can impact reliability.
A JA J
D
4. The package thermal impedance is calculated in accordance with JESD 51-7.
2
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