SC1218 データシートの表示（PDF） - Semtech Corporation

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SC1218

High Speed Synchronous MOSFET Driver

Semtech Corporation 

POWER MANAGEMENT

Electrical Characteristics (Cont.)

Unless specified: TA = 25°C; VIN = 12V.

Parameter

Symbol

Conditions

Min

Under Voltage Lockout

Start Threshold of VIN Voltage

Hysteresis

EN

VIN_START

VhysUVLO

Logic High Input Voltage

VEN_H

2.65

Logic Low Input Voltage

VEN_L

CO

Logic High Input Voltage

VCO_H

2.9

Logic Low Input Voltage

VCO_L

Internal Pull-down Resistor

High Side Driver (TG)

Output Impedence

Output Peak Current

Propagation Delay, TG Going High

Propagation Delay, TG Going Low

TG Minimum On-time(1)

Low Side Driver (BG)

RSRC_TG

RSINK_TG

ISRC_TG_PK

ISINK_TG_PK

tPDH_TG

tPDL_TG

tON_MIN_TG

VBST-VDRN= 12V

VIN=12V, CTG=10nF

VIN=12V, CTG=10nF

VBST-VDRN= 12V

VBST-VDRN= 12V

For CO pulse width < 40ns

Output Impedence

Output Peak Current

Propagation Delay, BG Going High

Propagation Delay, BG Going Low

BG Minimum OFF-time(1)

BG Maximum Turn ON Delay(1)

NOTE: (1). Guaranteed by design.

RSRC_BG

RSINK_BG

ISRC_BG_PK

ISINK_BG_PK

tPDH_BG

tPDL_BG

tOFF_MIN_BG

tDH_MAX_BG

VIN = 12V

VIN=12V, CBG=10nF

VIN=12V, CBG=10nF

VIN = 12V

VIN = 12V

For CO pulse width < 40ns

From CO=Low, VDRN>1V

SC1218

Typ

Max Units

4

4.3

V

250

mV

V

0.8

V

V

0.8

V

40

Kohm

1.68

2.1

Ohm

0.52

0.78 Ohm

2.8

A

6.5

A

37

ns

50

ns

40

ns

1.36

2.0

Ohm

0.52

0.78 Ohm

3.5

A

7.5

A

20

ns

27

ns

140

ns

175

ns

 2005 Semtech Corp.

3

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