L6983 datasheet(10/63 Pages) STMICROELECTRONICS

tên linh kiện	L6983

Giải thích chi tiết về linh kiện	38 V, 3 A synchronous step-down converter with 17 μA quiescent current

PDF	63 Pages

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nhà sản xuất	STMICROELECTRONICS [STMicroelectronics]

Trang chủ	http://www.st.com

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Symbol

Parameter

Test conditions

Min.

Typ.

Max.

Unit

TSHDWN (5)

Thermal shutdown

temperature

165

°C

THYS (5)

Thermal shutdown

hysteresis

°C

1. Parameter tested in the static condition during testing phase. The parameter value may change over a dynamic application

condition.

2. LCM version.

3. LNM version.

4. Specifications in the - 40 to 125 °C temperature range are assured by characterization and statistical correlation.

5. Not tested in production.

5.1

Frequency selection table

Specification referred to - 40 ≤ TJ ≤ 125 °C and VIN = 24 V, assured by testing at TJ = 25 °C, design,

characterization and statistical correlation.

Table 7. FSW selection

Symbol

Option

RVCC (kΩ)

RGND (kΩ)

Min.

Typ.

Max.

Unit

FSW

Dithering (5 % FSW typ.)

1.8

N.C.

200

kHz

N.C.

400

kHz

3.3

N.C.

500

kHz

5.6

N.C.

700

kHz

N.C.

1000

kHz

N.C.

1500

kHz

N.C.

2000

kHz

N.C.

2300

kHz

No dithering

N.C.

1.8

200

kHz

N.C.

360

400

440

kHz

N.C.

3.3

500

kHz

N.C.

5.6

630

700

770

kHz

N.C.

900

1000

1100

kHz

N.C.

1500

kHz

N.C.

2000

kHz

N.C.

2000

2300

2600

kHz

L6983

Frequency selection table

DS13116 - Rev 1

page 10/63

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