JAN1525AJ(1996) View Datasheet(PDF) - Microsemi Corporation

Part Name

Description

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JAN1525AJ
(Rev.:1996)

Regulating Pulse Width Modulator

Microsemi Corporation 

ELECTRICAL CHARACTERISTICS (continued)

Parameter

Test Conditions

Oscillator Section (Note 4)

Initial Accuracy

Voltage Stability

Temperature Stability (Note 3)

Minimum Frequency (Note 3)

Maximum Frequency (Note 3)

Current Mirror

Clock Amplitude

Clock Width

Sync Threshold

Sync Input Current

TJ = 25°C

VIN = 8V to 35V

MIN

≤

T

J

≤

MAX

RT = 150KΩ, CT = 0.1µF

RT = 2KΩ, CT = 1nF

I = 2mA

RT

TJ = 25°C

Sync Voltage = 3.5V

Error Amplifier Section (VCM = 5.1V)

Input Offset Voltage

Input Bias Current

Input Offset Current

DC Open Loop Gain

Gain-Bandwidth Product (Note 3)

Output Low Level

RL ≥10MΩ, TJ = 25°C

A

V

=

0dB,

T

J

=

25°C

Output High Level

Common Mode Rejection

Supply Voltage Rejection

P.W.M. Comparator Section

V = 1.5V to 5.2V

CM

VIN = 8V to 35V

Minimum Duty Cycle

Maximum Duty Cycle

Input Threshold (Note 4)

VCOMP = 0.6V

V = 3.6V

COMP

Zero Duty Cycle

Maximum Duty Cycle

Input Bias Current

Soft-Start Section

Soft Start Current

Soft Start Voltage

Shutdown Input Current

VSHUTDOWN = 0V

VSHUTDOWN = 2V

V

= 2.5V

SHUTDOWN

Output Drivers Section (each transistor, VC = 20V)

Output High Level

Output Low Level

Undervoltage Lockout

Collector Leakage (Note 5)

Rise Time

Fall Time

Shutdown Delay (Note 3)

ISOURCE = 20mA

ISOURCE = 100mA

I = 20mA

SINK

ISINK = 100mA

VCOMP and VSS = High

V = 35V

C

CL = 1nF, TJ = 25°C

CL = 1nF, TJ = 25°C

V

SD

=

3V,

C

S

=

0,

T

J

=

25°C

Total Standby Current

Standby Current

VIN = 35V

SG1525A/SG1527A SERIES

SG1525A/2525A

SG1527A/2527A

SG3525A

SG3527A

Units

Min. Typ. Max. Min. Typ. Max.

37.6 40 42.4 37.6 40 42.4 KHz

±0.3 ±1

±1 ±2 %

±3 ±6

±3 ±6 %

150

150 Hz

350

350

KHz

1.7 2.0 2.2 1.7 2.0 2.2 mA

3.0 3.5

3.0 3.5

V

0.3 0.5 1.0 0.3 0.5 1.0 µs

1.2 2.0 2.8 1.2 2.0 2.8 V

1.0 2.5

1.0 2.5 mA

0.5 5

2 10 mV

1 10

1 10 µA

1

1 µA

60 75

60 75

dB

12

12

MHz

0.2 0.5

0.2 0.5 V

3.8 5.6

3.8 5.6

V

60 75

60 75

dB

50 60

50 60

dB

0

0%

45 49

45 49

%

0.6 0.9

0.6 0.9

V

3.3 3.6

3.3 3.6 V

.05 2.0

.05 2.0 µA

25 50 80 25 50 80 µA

0.4 0.6

0.4 0.6 V

0.4 1.0

0.4 1.0 mA

18 19

18 19

V

17 18

17 18

V

0.2 0.4

0.2 0.4 V

1.0 2.2

1.0 2.2 V

678678 V

200

200 µA

100 600

100 600 ns

50 300

50 300 ns

0.2 0.5

0.2 0.5 µs

14 20

14 20 mA

11/91 Rev 1.3 10/96

Copyright © 1996

LINFINITY Microelectronics Inc.

3

11861 Western Avenue ∞ Garden Grove, CA 92841

(714) 898-8121 ∞ FAX: (714) 893-2570

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