Datasheet

ELECTRICAL CHARACTERISTICS
(unless otherwise stated, these specifications apply for Tj = 0 to
70
°
C, V
IN
= 20V, and f = 20KHz).
Symbol Parameter Test Condition Min. Typ. Max. Unit
REFERENCE SECTION
V
REF
Output Voltage 4.6 5 5.4 V
∆V
REF
Line Regulation V
IN
= 8 to 40V 10 30 mV
∆V
REF
Load Regulation I
L
= 0 to 20mA 20 50 mV
Ripple Rejection f = 120Hz, T
j
= 25°C66dB
Short Circuit Current Limit V
REF
= 0, T
j
= 25°C 100 mA
∆V
REF
/∆T Temperature Stability Over Operating Temperature range 0.3 1 %
∆V
REF
Long Term Stability Tj = 125°C, t = 1000Hrs 20 mV
OSCILLATOR SECTION
f
MAX
Maximum Frequency C
T
= 0.001µF, R
T
= 2KΩ 300 KHz
Initial Accuracy R
T
and C
T
Constant 5 %
Voltage Stability V
IN
= 8 to 40V, T
j
= 25°C1%
∆f/∆T Temperature Stability Over Operating Temperature Range 2 %
Output Amplitude Pin 3, T
j
= 25°C 3.5 V
Output Pulse Width C
T
= 0.01µF, T
j
= 25°C0.5µs
ERROR AMPLIFIER SECTION
V
OS
Input Offset Voltage V
CM
= 2.5V 2 10 mV
I
b
Input Bias Current 2 10 µA
G
V
Open Loop Voltage Gain 60 80 dB
CMV Common Mode Voltage T
j
= 25°C1.83.4V
CMR Common Mode Rejection T
j
= 25°C70dB
B Small Signal Bandwidth A
V
= 0dB, T
j
= 25°C 3 MHz
V
O
Output Voltage T
j
= 25°C0.53.8V
COMPARATOR SECTION
Duty-cycle % Each Output On 0 45 %
V
IT
Input Threshold Zero Duty-cycle 1 V
Maximum Duty-cycle 3.5 V
I
b
Input Bias Current 1 µA
CURRENT LIMITING SECTION
Sense Voltage Pin 9 = 2V with Error Amp. Set for
Max. Out.
T
j
= 25°C
180 200 220 mV
Sense Voltage T.C. 0.2 mV/°C
CMV Common Mode Voltage –1 1
OUTPUT SECTION
(each output)
Collector-emitter Voltage 40 V
Collector Leackage Curr. V
CE
= 40V 0.1 50 µA
Saturation Voltage I
C
= 50mA 1 2 V
Emitter Output Voltage V
IN
= 20V 17 18 V
t
r
Rise Time R
C
= 2KΩ, T
j
= 25°C0.2µs
t
f
Fall Time R
C
= 2KΩ, T
j
= 25°C0.1µs
I
q
(*) Total Standby Current V
IN
= 40V 8 10 mA
(*) Excluding oscillator charging current, error and current limit dividers, and with outputs open.
SG3524
3/9