SG3524 Ver la hoja de datos (PDF) - STMicroelectronics

Número de pieza

componentes Descripción

Fabricante

SG3524

REGULATING PULSE WIDTH MODULATORS

STMicroelectronics 

SG2524 - SG3524

ELECTRICAL CHARACTERISTICS (unless otherwise stated, these specifications apply for Tj = -25 to

+85°C for the SG2524, and 0 to 70°C for the SG3524, VIN = 20V, and f = 20KHz).

Symbol

Parameter

Test Condition

REFERENCE SECTION

VREF

∆VREF

∆VREF

Output Voltage

Line Regulation

Load Regulation

Ripple Rejection

Short Circuit Current

Limit

∆VREF/∆T Temperature Stability

∆VREF Long Term Stability

OSCILLATOR SECTION

fMAX Maximum Frequency

Initial Accuracy

Voltage Stability

∆f/∆T Temperature Stability

Output Amplitude

Output Pulse Width

ERROR AMPLIFIER SECTION

VOS Input Offset Voltage

Ib

Input Bias Current

GV Open Loop Voltage Gain

CMV Common Mode Voltage

CMR Common Mode Rejection

B

Small Signal Bandwidth

VO

Output Voltage

COMPARATOR SECTION

Duty-cycle

VIT

Input Threshold

Ib

Input Bias Current

CURRENT LIMITING SECTION

Sense Voltage

Sense Voltage T.C.

CMV Common Mode Voltage

OUTPUT SECTION(each output)

Collector-emitter Voltage

Collector Leackage Curr.

Saturation Voltage

Emitter Output Voltage

tr

tf

Iq (*)

Rise Time

Fall Time

Total Standby Current

VIN = 8 to 40V

IL = 0 to 20mA

f = 120Hz, Tj = 25°C

VREF = 0, Tj = 25°C

Over Operating

Temperature range

Tj = 125°C, t = 1000Hrs

CT = 0.001µF, RT = 2KΩ

RT and CT Constant

VIN = 8 to 40V, Tj = 25°C

Over Operating

Temperature Range

Pin 3, Tj = 25°C

CT = 0.01µF, Tj = 25°C

VCM = 2.5V

Tj = 25°C

Tj = 25°C

AV = 0dB, Tj = 25°C

Tj = 25°C

% Each Output On

Zero Duty-cycle

Maximum Duty-cycle

Pin 9 = 2V with Error

Amp. Set for Max. Out.

Tj = 25°C

VCE = 40V

IC = 50mA

VIN = 20V

RC = 2KΩ, Tj = 25°C

RC = 2KΩ, Tj = 25°C

VIN = 40V

SG2524

Min. Typ. Max.

4.8 5 5.2

10 20

20 50

66

100

0.3 1

20

300

5

1

2

3.5

0.5

0.5 5

2 10

72 80

1.8

3.4

70

3

0.5

3.8

0

45

1

3.5

1

190 200 210

0.2

–1

1

40

0.1 50

1

2

17 18

0.2

0.1

8 10

SG3524

Min. Typ. Max.

4.6 5 5.4

10 30

20 50

66

100

0.3 1

20

300

5

1

2

3.5

0.5

2 10

2 10

60 80

1.8

3.4

70

3

0.5

3.8

0

45

1

3.5

1

180 200 220

0.2

–1

1

40

0.1 50

1

2

17 18

0.2

0.1

8 10

Unit

V

mV

mV

dB

mA

%

mV

KHz

%

%

%

V

µs

mV

µA

dB

V

dB

MHz

V

%

V

V

µA

mV

mV/°C

V

µA

V

V

µs

µs

mA

(*) Excluding oscillator charging current, error and current limit dividers, and with outputs open.

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