L6986I_V01 datasheet(7/60 Pages) STMICROELECTRONICS

부품명	L6986I

상세설명	38 V, 5 W synchronous iso-buck converter for isolated applications

PDF	60 Pages

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제조업체	STMICROELECTRONICS [STMicroelectronics]

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Table 6. fSW selection (TJ = 25 °C, VIN = 12 V unless otherwise specified).

Symbol

RVCC (E24 series)

RGND (E24 series)

fSW min.

fSW typ.

fSW max.

Unit

fSW

0 Ω

(1)

225

250

275

kHz

1.8 Ω

(1) (2)

285

3.3 kΩ

330

5.6 kΩ

380

10 kΩ

435

0 Ω

(3)

450

500

550

18 kΩ

(1)(3)

575

33 kΩ

660

56 kΩ

755

1.8 kΩ

870

3.3 kΩ

(3)

900

1000

1100

1. Synchronization as slave between 275 kHz and 1000 kHz.

2. Not tested in production.

3. Synchronization as slave between 475 kHz and 1000 kHz

Figure 3. Circuit RVCC, RGND

L6986I

VCC

FSW

SGND

RVCC

L6986I

VCC

FSW

SGND

RGND

Table 7. RST threshold selection (TJ = 25 °C, VIN = 12 V unless otherwise specified).

Symbol

RGND (E241%)

VRST/VOUT (tgt. value)

VRSTmin.

VRSTtyp.

VRSTmax.

Unit

VRST

0 Ω (1)

93%

0.779

0.791

0.802

8.2 kΩ ±1% (1)

80%

0.670

0.680

0.690

18 kΩ ±1% (1)

87%

0.728

0.740

0.751

39 kΩ ±1%

96%

0.804

0.816

0.828

1. please use the pre-defined resistor values.

2. do not exceed the indicated resistor value.

L6986I

Electrical characteristics

DS13647 - Rev 2

page 7/60

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