AMC34063ADM datasheet(3/9 Pages) ADDTEK

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AMC34063A

DD014_E -- JUNE 2006

RECOMMENDED OPERATING CONDITIONS

Recommended Operating Conditions

Parameter

Symbol

Min.

Typ.

Max.

Units

Comparator Input Voltage

VFB

-0.3 to + 40

Switch Collector Voltage

VC(switch)

Switch Emitter Voltage (VPin1=40V)

VE(switch)

Switch Collector to Emitter Voltage

VCE(switch)

Driver Collector Voltage

VC(driver)

Driver Collector Current (Note 1)

IC(driver)

100

Switch Current

ISW

1.5

Timing Capacitor (connected to Cap pin)

Operating Ambient Temperature Range

0 to +70

°C

Note 1: Maximum package power dissipation limits must be observed.

ELECTRICAL CHARACTERISTICS

VCC=5.0 V, TA=0°C to 70°C, unless otherwise specified.

AMC34063A

Parameter

Symbol

Test Conditions

Min.

Typ.

Max.

Units

OSCILLATOR

Frequency

fosc

VPin 5 = 0 V, CT = 1.0 nF, TA = 25°C

KHz

Charge Current

Ichg

VCC = 5.0 V to 40 V, TA = 25°C

µA

Discharge Current

Idischg

VCC = 5.0 V to 40 V, TA = 25°C

140

220

260

µA

Discharge to Charge Current Ratio Idischg/Ichg Pin 7 to VCC, TA = 25°C

5.2

6.5

7.5

Current Limit Sense Voltage

Vsense

Ichg = Idischg, TA = 25°C

250

300

350

OUTPUT SWITCH

Saturation Voltage, Darlington

Connection

VCE(sat) ISW = 1.0 A, Pins 1, 8 connected

1.0

1.3

Saturation Voltage

VCE(sat)

ISW = 1.0 A, Rpin 8 =82 Ω to VCC,

Forced

β = 20

0.45

0.7

DC Current Gain

hFE

ISW = 1.0 A, VCE = 5.0 V, TA = 25°C

Collector Off─State Current

IC(off)

VCE = 40 V

0.01

100

µA

COMPARATOR

TA = 25°C

1.225

1.25

1.275

Threshold Voltage

Vth

TA =0°C to 70°C

1.21

1.29

Threshold Voltage Line Regulation

Regline VCC = 3.0 V to 40 V

1.4

5.0

Input Bias Current

IIB

VFB = 0 V

-20

-400

TOTAL DEVICE

Supply current

ICC

VCC = 5.0 V to 40 V,

CT = 1.0nF, Pin 7 = VCC,

VFB > Vth, Pin 2= GND, remaining

pins open

4.0

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