SG3526BDW 데이터 시트보기 (PDF) - Microsemi Corporation

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SG3526BDW

REGULATING PULSE WIDTH MODULATOR

Microsemi Corporation 

SG1526B/SG2526B/SG3526B

ELECTRICAL CHARACTERISTICS (continued)

Parameter

Test Conditions

Oscillator Section (Note 4)

Initial Accuracy

Voltage Stability

Temperature Stability (Note 9)

Minimum Frequency (Note 9)

Maximum Frequency

Sawtooth Peak Voltage

Sawtooth Valley Voltage

SYNC Pulse Width

T

J

=

25°C

VIN = 8 to 35V

Over Operating TJ

R

T

=

150KΩ,

C

T

=

20µF

RT = 2KΩ, CT = 470pF

VIN = 35V

V = 8V

IN

RL = 2.0KΩ to VREF

Error Amplifier Section (Note 5)

Input Offset Voltage

Input Bias Current

RS ≤ 2KΩ

Input Offset Current

DC Open Loop Gain

RL ≥ 10MΩ

High Output Voltage

VPIN1 - VPIN2 ≥ 150mV, ISOURCE = 100µA

Low Output Voltage

Common Mode Rejection

V

PIN2

-

V

PIN1

≥

150mV,

I

SINK

=

100µA

RS ≤ 2KΩ

Supply Voltage Rejection

VIN = 8V to 35V

PWM Comparator Section (Note 4)

Minimum Duty Cycle

Maximum Duty Cycle

VCOMPENSATION = 0.4V

VCOMPENSATION = 3.6V

Digital Ports (SYNC, SHUTDOWN, and RESET)

HIGH Output Voltage

LOW Output Voltage

HIGH Input Current

LOW Input Current

SHUTDOWN Delay to Output

ISOURCE = 40µA

I = 3.6mA

SINK

VIH = 2.4V

VIL = 0.4V

(Note9)

Current Limit Comparator Section (Note 6)

Sense Voltage

Input Bias Current

RS ≤ 50Ω

Delay to Output (Note 9)

Soft-Start Section

Error Clamp Voltage

RESET = 0.4V

CS Charging Current

RESET = 2.4V

Output Drivers (each output) (Note 7)

HIGH Output Voltage

LOW Output Voltage

Collector Leakage

Rise Time

Fall Time

ISOURCE = 20mA

ISOURCE = 100mA

ISINK = 20mA

ISINK = 100mA

VC = 40V

CL = 1000pF

CL = 1000pF

Power Consumption Section (Note 8)

Standby Current

SHUTDOWN = 0.4V

SG1526B/2526B

SG3526B

Units

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

±3 ±8

±3 ±8 %

0.5 1.0

0.5 1.0 %

7 10

35 %

1.0

1.0 Hz

500

500

KHz

2.5 3.0 3.5 2.5 3.0 3.5 V

0.5 1.0 1.1 0.5 1.0 1.1 V

1.0 2

1.0 2 µs

25

2 10 mV

-350 -1000

-350 -2000 nA

35 100

35 200 nA

64 72

60 72

dB

3.6 4.2

3.6 4.2

V

0.2 0.4

0.2 0.4 V

70 94

70 94

dB

66 80

66 80

dB

0

0%

45 49

45 49

%

2.4 4

2.4 4

V

0.2 0.4

0.2 0.4 V

-125 -200

-125 -200 µA

-225 -360

-225 -360 µA

200

200 ns

90 100 110 80 100 120 mV

-3 -10

-3 -10 µA

400

400 ns

0.1 0.4.

0.1 0.4. V

50 100 150 50 100 150 µA

12.5 13.5

12.5 13.5

V

12 13

12 13

V

0.2 0.3

0.2 0.3 V

1.2 2

1.2 2 V

50 150

50 150 µA

0.3 0.4

0.3 0.4 µs

0.1 0.15

0.1 0.15 µs

18 30

18 30 mA

Note 3. IL = 0mA

Note 4.

F

OSC

=

40KHz

(R

T

=

4.12KΩ

±1%,

C

T

=

.01µF

±1%,

R

D

=

0Ω)

Note 5. VCM = 0 to 5.2V

Note 6. VCM = 0 to 12V

Note 7. VC = 15V

Note 8. V = 35V

IN

Note 9. These parameters, although guaranteed over the recom-

mended operating conditions, are not tested in production.

Rev 1.1a

Copyright © 1994

11861 Western Avenue ∞ Garden Grove, CA 92841

3

(714) 898-8121 ∞ FAX: (714) 893-2570

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