SG1846

Rev 1.1a

Copyright

© 1994

11861 Western Avenue

∞

∞

∞

∞

∞ Garden Grove, CA 92841

2

(714) 898-8121

∞

∞

∞

∞

∞ FAX: (714) 893-2570

Sync Output Current ........................................................... 5mA

Error Amplifier Output Current ............................................ 5mA

Oscillator Charging current (Pin 9) ..................................... 5mA

Operating Junction Temperature

Hermetic (J, L, F Packages) ........................................ 150°C

Plastic (N, DW Package) ............................................. 150°C

Storage Temperature Range ............................ -65°C to 150°C

Lead Temperature (Soldering, 10 Seconds) .................. 300°C

Supply Voltage (+V

Collector Supply Voltage(V

Analog Inputs (Pins 3, 4, 5, 6, & 16) ...................... -0.3V to +V

IN

Logic Input ........................................................... -0.3V to 5.5V

Soure/Sink Load current (continuous) .......................... 200mA

Source/Sink Load Current (peak, 200ns) ...................... 500mA

Reference Load Current .................................................. 30mA

Soft Start Sink Current ..................................................... 50mA

Note 1. Values beyond which damage may occur.

Note 2. Pin numbers refer to ceramic J package.

THERMAL DATA

J Package:

θ

30°C/W

θ

N Package:

θ

40°C/W

θ

65°C/W

DW Package:

θ

θ

95°C/W

F Package:

θ

70°C/W

θ

115°C/W

L Package:

θ

35°C/W

θ

120°C/W

Note A. Junction Temperature Calculation: T

J

= T

A

+ (P

D

x

θ

JA

).

Note B. The above numbers for

θ

thermal resistance of the package in a standard mount-

ing configuration. The

θ

guidelines for the thermal performance of the device/pc-

board system. All of the above assume no ambient

airflow.

5.10

5

3

0.4

100

5

-45

Reference Section

T

V

I

Line, Load and Temperature

10Hz

≤ f ≤ 10KHz. T

T

V

5.05

5.00

-10

Output Voltage

Line Regulation

Load Regulation

Short Circuit Output Current

Oscillator Timing Resistor (R

Oscillator Timing Capacitor (C

Operating Ambient Temperature Range

SG1846 ........................................................... -55°C to 125°C

SG2846 ............................................................. -25°C to 85°C

SG3846 ................................................................ 0°C to 70°C

Note 3. Range over which the device is functiona

l.

Supply Voltage Range ............................................... 8V to 40V

Collector Supply Voltage Range ............................. 4.5V to 40V

Source/Sink Output Current (continuous) ...................... 100mA

Source/Sink Output Current (peak 200ns) .................... 200mA

Reference Load Current ........................................... 0 to 10mA

Oscillator Frequency Range ........................... 1KHz to 500KHz

ELECTRICAL CHARACTERISTICS

(Unless otherwise specified, these specifications apply over the operating ambient temperatures for SG1846/SG1847 with -55

°C ≤ T

with -25

°C ≤ T

85

°C, SG3846 with 0°C ≤ T

70

°C, +V

IN

= 15V. Low duty cycle pulse testing techniques are used which maintains junction and

case temperatures equal to the ambient temperature.)

Units

SG1846

SG2846

SG3846

Parameter

Test Conditions

5.15

20

15

5.20

5.00

4.95

-10

Min. Typ. Max.

Min. Typ. Max.

5.10

5

3

0.4

100

5

-45

5.20

20

15

5.25

V

mV

mV

mV/°C

V

µV

mV

mA

RoHS Peak Package Solder Reflow Temp. (40 sec. max. exp.) .. 260° (+0, -5)