L6712A datasheet(4/29 Pages) STMICROELECTRONICS

부품명	L6712A

상세설명	TWO-PHASE INTERLEAVED DC/DC CONTROLLER

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L6712A L6712

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REFERENCE AND DAC

VOUT

(1)

Output Voltage Accuracy

VIDx See Table 5, VID

≠ “11x“

-0.9

-

0.9

%

VID = “110“

-1.0

-

1.0

%

REF_IN/OUT

Reference Accuracy

VIDx See Table 5, VID

≠ “111”

VOUT -5

VOUT

VOUT+5

mV

Current Capability

3

mA

Load Regulation

IREF = from 0 to 3mA

5.0

mV

VPROG / REF_IN/

OUT

Accuracy with external

reference

VID=“111”;

REF_IN/OUT = 0.8V to 3.3V

-2.0

2.0

%

REF_IN/OUT

Input impedance

400

k

Ω

IVID

VID pull-up Current

VIDx =SGND

5

µA

VVID

VID pull-up Voltage

VIDx = OPEN

3

V

VIDIL

VID Input Levels

Input Low

0.4

V

VIDIH

Input High

1.0

V

ERROR AMPLIFIER

VOS_EA

Offset

FB = COMP

-5

5

mV

DC Gain

80

dB

SR

Slew-Rate

COMP=10pF

15

V/

µs

IFB_START

Start-up Current

FB=SGND; During Soft Start…

65

µA

DIFFERENTIAL AMPLIFIER (REMOTE BUFFER)

VOS_RA

Offset

VSEN = FBG

-8

8

mV

DC Gain

80

dB

SR

Slew Rate

VSEN = 10pF

15

V/

µs

DIFFERENTIAL CURRENT SENSING

IISEN1, IISEN2

Bias Current

ILOAD = 0

455055

µA

IPGNDSx

Bias Current

45

50

55

µA

IISEN1, IISEN2

Bias Current at

Over Current Threshold

80

85

90

µA

IDROOP

Droop Current

ILOAD ≤ 00

1

µA

ILOAD = 100%

47.5

50

52.5

µA

GATE DRIVERS

tRISE HGATE

High Side

Rise Time

BOOTx-PHASEx=10V;

CHGATEx to PHASEx=3.3nF

15

30

ns

IHGATEx

High Side

Source Current

BOOTx-PHASEx=10V

2

A

RHGATEx

High Side

Sink Resistance

BOOTx-PHASEx=12V;

1.5

2

2.5

Ω

tRISE LGATE

Low Side

Rise Time

VCCDR=10V;

CLGATEx to PGNDx=5.6nF

30

55

ns

ILGATEx

Low Side

Source Current

VCCDR=10V

1.8

A

RLGATEx

Low Side

Sink Resistance

VCCDR=12V

0.7

1.1

1.5

Ω

Table 4. Electrical Characteristcs (continued)

(VCC = 12V±10%, TJ = 0°C to 70°C unless otherwise specified)

Symbol

Parameter

Test Condition

Min.

Typ.

Max.

Unit

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L6712A 데이터시트(PDF) 4 Page - STMicroelectronics

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