A7986ATR datasheet(7/42 Pages) STMICROELECTRONICS

部件名	A7986ATR

功能描述	3 A step-down switching regulator for automotive applications

PDF	42 Pages

Scroll/Zoom	100%

制造商	STMICROELECTRONICS [STMicroelectronics]

网页	http://www.st.com

标志

7 / 42 page

DocID022801 Rev 5

7/42

A7986A

Electrical characteristics

VCH

High level output voltage

VFB < 0.6 V

VCL

Low level output voltage

VFB > 0.6 V

0.1

IO SOURCE

Source COMP pin

VFB = 0.5 V,

VCOMP = 1 V

IO SINK

Sink COMP pin

VFB = 0.7 V,

VCOMP = 0.75 V

Open loop voltage gain

(1)

100

Synchronization function

VS_IN,HI

High input voltage

3.3

VS_IN,LO

Low input voltage

tS_IN_PW

Input pulse width

VS_IN,HI = 3 V,

VS_IN,LO = 0 V

100

VS_IN,HI = 2 V,

VS_IN,LO =1 V

300

ISYNCH,LO

Slave sink current

VSYNCH = 2.9 V

0.7

VS_OUT,HI

Master output amplitude

ISOURCE = 4.5 mA

tS_OUT_PW

Output pulse width

SYNCH floating

110

Protection

TSHDN

Thermal shutdown

150

°C

Hysteresis

Guaranteed by design.

Table 4. Electrical characteristics (continued)

Symbol

Parameter

Test conditions

Values

Unit

Min.

Typ.

Max.

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