SC420A 查看數據表（PDF） - Semtech Corporation

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SC420A

High Speed, Combi-Sense™, Synchronous Power MOSFET Driver for Mobile Applications

Semtech Corporation 

POWER MANAGEMENT

Electrical Characteristics (Cont.)

Unless specified: -40oC < TJ < 125°C; VIN = 5V; 0V < VDRN < 25V

Parameter

Symbol

Conditions

Propagation Delay, TG Going

High (3)

Propagation Delay, TG Going

Low (3)

tpdhTG

tpdlTG

CTG = 3nF,BG = 0V

CTG = 3nF,DRN = 0V

Low-Side Driver (BG)

Peak Output Current (3)

Output Resistance (3)

IPKL

RSRC_BG

Rise Time (3)

Fall Time (3)

Propagation Delay,BG Going

High (3)

RSINK_BG

trBG

tfBG

tpdhBG

Propagation Delay,BG Going

Low (3)

tpdlBG

Shoot-thru Protection (CDELAY)

I = 100mA

CBG = 3nF

CBG = 3nF

CBG=3nF, DRN = 0V

CBG = 3nF

Shoot-thru Protection Delay

Time (2)

tspd

CCDELAY open

Programmed Delay

CDELAY charge current

Virtual Phase Node (VPN)

I

CDELAY

Output Resistance

Leakage

Notes:

(2) Guaranteed by design

(3) Temperature = 25OC

RSRC_VPN

RSINK_VPN

ILEAK_VPN

VIN2=27V

SC420A

Min Typ Max Units

30 36 42 ns

20 28 36 ns

1.8 2.0 2.2 A

1.8 2.2 2.6

Ω

0.55 0.7 0.95

5 10 15 ns

2

5

8

ns

21 28 35 ns

20 25 30 ns

15 20 30 ns

1

ns/pF

350 500 650 µA

65

Ω

90

600 nA

© 2004 Semtech Corp.

4

United States Patent No. 6,441,597

www.semtech.com

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