AMS34063 Просмотр технического описания (PDF) - Advanced Monolithic Systems Inc

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производитель

AMS34063

DC-TO-DC CONVERTER CONTROL CIRCUIT

Advanced Monolithic Systems Inc 

AMS34063

Electrical Characteristics (Vcc= 5V, Ta=25°C (unless otherwise specified.)

Parameter

Oscillator

Test Condictions

Frequency

Charging Current

VPIN5 = 0V ,CT = 1nF

5.0V~VCC~40V

Discharge Current

5.0V~VCC~40V

Voltage Swing

PIN 3

Discharge to Charge Current

Ratio

VIPK(SENSE) =VCC

Symbol

MIN. TYP. MAX. Unit

fOSC

ICHG

IDISCHG

24

24

140

VOSC

I I DISCHG/ CHG

35 46 KHZ

35 46 µA

220 260 µA

0.6

V

6.0

Current Limit Sense Voltage

Output Switch

I I CHG= DISCHG

VIPK(SENSE)

250 320 400

mV

Saturation Voltage, Darlington ISW=1.0A;

Connection

V V C(DRIVER)= C(SWITCH)

Saturation Voltage

ISW=1.0A; IC(DRIVER)=50mA

(Forced ß=20)

VCE(SAT)

VCE (SAT)

1.0 1.3 V

0.45 0.7 V

DC Current Gain

ISW=1.0A; VCE=5.0V

hFE

50

75

Collector Off-State Current

Comparator

VCE=40V

IC(OFF)

10

nA

Threshold Voltage

Threshold Voltage

0°C~Ta~70°C

VFB

1.225 1.25 1.275

V

1.19

1.31

V

Threshold Voltage Line

Regulation

Input Bias Current

Supply current

3.0V~VCC~40V

REGLINE 0.1 0.3

VIN=0V

IIB

VIPK(SENSE)=VCC

ICC

VPIN 5>VFB

5.0V~VCC~40V

CT=0.001µF, PIN 2=GND

0.4 1

mV/V

µA

4

Ma

3

Advanced Monolithic Systems http://www.ams-semitech.com

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