SG1524/SG2524/SG3524
ABSOLUTE MAXIMUM RATINGS
(Note 1)
Input Voltage (+V
IN
) ............................................................. 42V
Collector Voltage ................................................................ 40V
Logic Inputs ........................................................... -0.3V to 5.5V
Current Limit Sense Inputs ................................... -0.3V to 0.3V
Output Current (each transistor) .................................... 100mA
Reference Load Current .................................................. 50mA
Note 1. Values beyond which damage may occur.
Oscillator Charging Current ................................................ 5mA
Operating Junction Temperature
Hermetic (J, L Packages) ............................................. 150°C
Plastic (N, D Packages) ............................................... 150°C
Storage Temperature Range ............................. -65°C to 150°C
Lead Temperature (Soldering, 10 seconds) .................... 300°C
THERMAL DATA
J Package:
Thermal Resistance-
Junction to Case
,
θ
JC
.................. 30°C/W
Thermal Resistance-
Junction to Ambient
,
θ
JA
.............. 80°C/W
N Package:
Thermal Resistance-
Junction to Case
,
θ
JC
.................. 40°C/W
Thermal Resistance-
Junction to Ambient
,
θ
JA
............. 65°C/W
D Package:
Thermal Resistance-
Junction to Case
,
θ
JC
................... 50°C/W
Thermal Resistance-
Junction to Ambient
,
θ
JA
............ 120°C/W
L Package:
Thermal Resistance-
Junction to Case
,
θ
JC
.................. 35°C/W
Thermal Resistance-
Junction to Ambient
,
θ
JA
........... 120°C/W
Note A. Junction Temperature Calculation: T
J
= T
A
+ (P
D
x
θ
JA
).
Note B. The above numbers for
θ
JC
are maximums for the limiting
thermal resistance of the package in a standard mount-
ing configuration. The
θ
JA
numbers are meant to be
guidelines for the thermal performance of the device/pc-
board system. All of the above assume no ambient
airflow.
RECOMMENDED OPERATING CONDITIONS
(Note
2)
Input Voltage (+V
IN
) ................................................... 8V to 40V
Collector Voltage ....................................................... 0V to 40V
Error Amp Common Mode Range ..........................1.8V to 3.4V
Current Limit Sense Common Mode Range ........ -0.3V to 0.3V
Output Current (each transistor) ............................... 0 to 50mA
Reference Load Current ........................................... 0 to 20mA
Oscillator Charging Current .................................. 30µA to 2mA
Oscillator Frequency Range ......................... 100Hz to 300KHz
Oscillator Timing Resistor (R
T
) ........................ 1.8KΩ to 100KΩ
Oscillator Timing Capacitor (C
T
) ............................ 1nF to 1.0µF
Operating Ambient Temperature Range
SG1524 ......................................................... -55°C to 125°C
SG2524 ........................................................... -25°C to 85°C
SG3524 ............................................................... 0°C to 70°C
Note 2: Range over which the device is functional and parameter limits are guaranteed.
ELECTRICAL CHARACTERISTICS
(Unless otherwise specified, these specifications apply over the operating ambient temperatures for SG1524 with -55°C
≤
T
A
≤
125°C, SG2524 with
-25°C
≤
T
A
≤
85°C, SG3524 with 0°C
≤
T
A
≤
70°C, and +V
IN
= 20V. Low duty cycle pulse testing techniques are used which maintains junction and
case temperatures equal to the ambient temperature.)
Parameter
Reference Section
(Note 3)
Output Voltage
Line Regulation
Load Regulation
Temperature Stability
(Note 7)
Total Output Voltage Range
(Note 7)
Short Circuit Current
Note 3. I
L
= 0mA
Test Conditions
T
J
= 25°C
V
IN
= 8V to 40V
I
L
= 0 to 20mA
Over Operating Temperature Range
Over Line, Load and Temperature
V
REF
= 0V
SG1524/2524
SG3524
Units
Min. Typ. Max. Min. Typ. Max.
4.80 5.00 5.20 4.60 5.00 5.40
20
30
50
50
50
50
4.80
5.20 4.60
5.40
25
50 150 25
50 150
V
mV
mV
mV
V
mA
4/90 Rev 1.1 2/94
Copyright
©
1994
2
11861 Western Avenue
∞
Garden Grove, CA 92841
(714) 898-8121
∞
FAX: (714) 893-2570
L
INFINITY
Microelectronics Inc.
MICROSEMI [ MICROSEMI CORPORATION ]
