L6732 datasheet(9/36 Pages) STMICROELECTRONICS

部件名	L6732

功能描述	Adjustable step-down controller with synchronous rectification

PDF	36 Pages

Scroll/Zoom	100%

制造商	STMICROELECTRONICS [STMicroelectronics]

网页	http://www.st.com

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9 / 36 page

L6732

Electrical characteristics

9/36

Electrical characteristics

VCC = 12V, TA = 25°C, unless otherwise specified.

Table 4.

Electrical characteristics

Symbol

Parameter

Test condition

Min.

Typ.

Max.

Unit

VCC supply current

ICC

VCC Stand by current

OSC = open; SS to GND

VCC quiescent current

OSC= open;

HG = open, LG = open, PH=open

8.5

Power-ON

VCC

Turn-ON VCC threshold

VOCH = 1.7V

4.0

4.2

4.4

Turn-OFF VCC threshold

VOCH = 1.7V

3.6

3.8

4.0

VIN OK

Turn-ON VOCH threshold

1.1

1.25

1.47

VIN OK

Turn-OFF VOCH threshold

0.9

1.05

1.27

VCCDR regulation

VCCDR voltage

VCC = 5.5V to 14V

IDR = 1mA to 100mA

4.555.5

Soft start and inhibit

ISS

Soft Start Current

SS = 2V

µA

SS = 0 to 0.5V

Oscillator

fOSC

Accuracy

237

250

263

KHz

450

500

550

KHz

∆VOSC

Ramp Amplitude

2.1

Output voltage

VFB

Output Voltage

VDIS = 0 to Vth

0.597

0.6

0.603

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