IP34063AD データシートの表示（PDF） - Semelab - > TT Electronics plc

部品番号

コンポーネント説明

メーカー

IP34063AD

DC–DC CONVERTER CONTROL CIRCUIT

Semelab - > TT Electronics plc  

IP35063

IP33063

IP34063

DESCRIPTION

The IP34063 series of control circuits contains all the

functions required to implement DC–DC converters.

Included are internal voltage reference, comparator,

controlled duty cycle oscillator with current limit circuit,

driver, and high current output switch. This series was

specifically designed to be incorporated in Step-Down

(Buck) and Step-Up (Boost) applications with a minimum

number of external components.

Driver 8

Collector

7

Ipk Sense

6

V CC

Comparator 5

Inverting

Input

1

SQ

Q2

R

Q1

170

Ω

2

Switch

Collector

Switch

Emitter

OSCILLATOR

COMPARATOR

1.25 V

REFERENCE

REGULATOR

3

Timing

Capacitor

4

Gnd

ELECTRICAL CHARACTERISTICS (Test Parameters unless otherwise stated : VCC = 5V , TJ = 25°C)

Parameter

Test Conditions

Min. Typ. Max. Units

OSCILLATOR

Charging Current

Discharge Current

Voltage Swing

VCC = 5 to 40V

VCC = 5 to 40V

20

35

50

µA

150

200

250 µA

0.5

Vpp

Discharge to Charge Current Ratio

Current Limit Sense Voltage

OUTPUT SWITCH

Ipk(sense) = VCC

Ichg = Idischg

6.0

—

250

300

350 mV

Saturation Voltage, Darlington Connection * ISW = 1.0A

Saturation Voltage *

ISW = 1.0A

IC(Driver) = 50mA (Forced β = 20)

DC Current Gain

ISW = 1.0A , VCE = 5.0V

Collector Off–State Current

VCE = 40V

COMPARATOR

1

1.3

V

0.45

0.7

V

35

120

—

10

nA

Threshold Voltage *

1.18

1.25

1.32

V

Threshold Voltage Line Regulation *

Input Bias Current *

TOTAL DEVICE

VCC = 3 to 40V

VIN = 0V

0.04

0.2 mV/V

40

400 nA

Supply Current *

VCC = 5 to 40V CT = 0.001µF

Ipk(sense) = VCC VPIN 5 > Vth

Pin 2 = Gnd , Remaining Pins Open.

2.4

3.5 mA

NOTES

* Applies over full operating temperature range (see order information).

Semelab plc. Telephone (01455) 556565. Telex: 341927. Fax (01455) 552612.

Prelim. 2/95

Share Link: