L6728AH datasheet(7/33 Pages) STMICROELECTRONICS

部品番号	L6728AH

部品情報	High frequency single phase PWM controller with Power Good

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L6728AH

Electrical specifications

Doc ID 15726 Rev 1

7/33

3

Electrical specifications

3.1

Absolute maximum ratings

Table 4.

Absolute maximum ratings

3.2

Electrical characteristics

VCC = 5 V to 12 V; TJ = 0 °C to 70 °C unless otherwise specified

Symbol

Parameter

Value

Unit

VCC

to GND

-0.3 to 15

V

VBOOT, VUGATE

to PHASE

to GND

to GND; t < 200 ns

15

33

45

V

VPHASE

to GND

to GND; t < 200 ns

-5 to 18

-8 to 30

V

VLGATE

to GND

-0.3 to VCC+0.3

V

FB, COMP, VSEN to GND

-0.3 to 3.6

V

PGOOD to GND

-0.3 to VCC+0.3

V

Table 5.

Electrical characteristics

Symbol

Parameter

Test conditions

Min.

Typ.

Max.

Unit

Supply current and power-on

ICC

VCC supply current

UGATE and LGATE = OPEN

6

mA

IBOOT

BOOT supply current

UGATE = OPEN; PHASE to GND

0.7

mA

UVLO

VCC turn-ON

VCC rising

4.1

V

Hysteresis

0.2

V

Oscillator

FSW

Main oscillator accuracy

540

600

660

kHz

ΔV

OSC

PWM ramp amplitude

1.4

V

dMAX

Maximum duty cycle

67

%

Reference and error amplifier

Output voltage accuracy

-0.8

-

0.8

%

A0

DC gain (1)

120

dB

GBWP

Gain-bandwidth product (1)

15

MHz

SR

Slew-rate (1)

8V/

μs

DIS

Disable threshold

COMP falling

0.70

0.85

V

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