SC420 데이터 시트보기 (PDF) - Semtech Corporation

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SC420

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

Semtech Corporation 

SC420

POWER MANAGEMENT

Electrical Characteristics (Cont.)

Unless specified: TA = 25°C; VIN = 5V; 0V < VDRN < 25V

Parameter

Symbol

Under Voltage Lockout

Conditions

Start Threshold (ramping up)

Hysteresis

Under-Voltage Lockout

Time Delay

VIN ramping up (1)

VIN ramping down (1)

EN

VIN

Vhys

tpdh

UVLO

tpd

LUVLO

High Level Input Voltage

VIH

Low Level Input Voltage

VIL

CO

High Level Input Voltage

Low Level Input Voltage

Tri-state Level

Thermal Shutdown

CO floating

Over Temperature Trip Point

(1)

Hysteresis (1)

High Side Driver (TG)

TOTP

T

HYST

Peak Output Current (1)

Output Resistance

Rise Time (1)

Fall Time (1)

IPKH

R

SRC_TG

RSINK_TG

trTG

tfTG

I=

100mA

V -V = 5V

BST DRN

VBST-VDRN = 5V

CL = 3nF,VBST - VDRN = 5V

Min Typ Max

4.1 4.3 4.55

100 200 350

2

2

2.0

0.8

2.0

0.8

1.0

1.9

165

10

1.3

3.4

1.1

15

24

15

24

Units

V

mV

µs

µs

V

V

V

V

V

oC

oC

A

Ω

ns

ns

(1) Guaranteed by design

© 2003 Semtech Corp.

3

United States Patent No. 6,441,597

www.semtech.com

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