KGM34063AS 参数 Datasheet PDF下载

DC-TO-DC CONVERTER CONTROL CIRCUITS

KGM34063AS

The KGM34063AS is a monolithic control circuit containing the primary functions required for

DC-to-DC converters. These devices consist of an internal temperature compensated

reference, comparator, controlled duty cycle oscillator with an active current limit circuit, driver

and high current output switch. This series was specifically designed to be incorporated in

Step-Down and Step-Up and Voltage-Inverting applications with a minimum number of

external components.

FEATURES

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Operation from 3.0 V to 40 V Input

Low Standby Current

Current Limiting

Output Switch Current to 1.5 A

Output Voltage Adjustable

Frequency Operation to 100 kHz

Precision 2% Reference

FUNCTIONAL BLOCK DIAGRAM

MAXIMUM RATINGS

Rating

Power Supply Voltage

Comparator Input Voltage Range

Switch Collector Voltage

Switch Emitter Voltage (Vpin 1 = 40 V)

Switch Collector to Emitter Voltage

Driver Collector Voltage

Driver Collector Current (Note 1)

Switch Current

Power Dissipation and Thermal Characteristics

Ceramic Package, U Suffix T

A

= +25°C

Thermal Resistance

Plastic Package, P Suffix T

A

= +25°C

Thermal Resistance

SOIC Package, D Suffix

TA

= +25°C

Thermal Resistance

Operating Junction Temperature

Operating Ambient Temperature Range

Storage Temperature Range

Symbol

V

CC

V

IR

V

C(switch)

V

E(switch)

V

CE(switch)

I

C(driver)

I

C(driver)

I

SW

P

D

R

θJA

P

D

R

θJA

P

D

R

θJA

TJ

Value

40

-0.3 to

+40

40

40

40

40

100

1.5

1.25

100

1.25

100

625

160

+150

0 to +70

-65to+150

Unit

Vdc

Vdc

Vdc

Vdc

Vdc

Vdc

mA

A

W

°C/W

W

°C/W

mW

°C/W

°C

°C

°C

T

A

Tstg