L6727_10 datasheet(7/34 Pages) STMICROELECTRONICS

부품명	L6727

상세설명	Single phase PWM controller

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L6727

Electrical specifications

Doc ID 12933 Rev 4

7/34

3.2

Electrical characteristics

VCC = 12 V; TA = -20 °C to +85 °C, unless otherwise specified.

Table 5.

Electrical characteristics

Symbol

Parameter

Test conditions

Min.

Typ.

Max.

Unit

Recommended operating conditions

VCC

Device supply voltage

See Figure 1

4.1

13.2

V

VIN

Conversion input voltage

13.2

V

VCC < 7.0 V

19.0

V

Supply current and power-ON

ICC

VCC supply current

UGATE and LGATE = OPEN

6

mA

IBOOT

BOOT supply current

UGATE = OPEN; PHASE to GND

0.5

mA

UVLO

VCC turn-ON

VCC rising

4.1

V

Hysteresis

0.2

V

Oscillator

FSW

Main oscillator accuracy

0

°C to +70 °C

270

300

330

kHz

250

300

350

kHz

ΔV

OSC

PWM ramp amplitude

1.5

V

dMAX

Maximum duty cycle

80

%

Reference

Output voltage accuracy

VOUT = 0.8 V, TA = 0 °C to 70 °C

-1

-

1

%

VOUT = 0.8 V

-1.5

1.5

%

Error amplifier

A0

DC gain(1)

120

dB

GBWP

Gain-bandwidth product(1)

15

MHz

SR

Slew-rate(1)

8V/

μs

IFB

Input bias current

Sourced from FB

100

nA

DIS

Disable threshold

COMP falling

0.43

0.5

V

Gate drivers

IUGATE

HS source current

BOOT - PHASE = 5 V to 12 V

1.5

A

RUGATE

HS sink resistance

BOOT - PHASE = 5 V to 12 V

1.1

Ω

ILGATE

LS source current

VCC = 5 V to 12 V

1.5

A

RLGATE

LS sink resistance

VCC = 5 V to 12 V

0.65

Ω

Overcurrent protection

IOCSET

OCSET current source

Sunk from COMP pin, before SS

55

60

65

μA

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