SC4250HISTRT 查看數據表（PDF） - Semtech Corporation

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SC4250HISTRT

Negative Voltage Hot Swap Controller

Semtech Corporation 

SC4250

POWER MANAGEMENT

Electrical Characteristics (Cont.)

Unless specified: TA = 25°C, VCC = 48V, VEE = 0V.

Values in bold apply over full operating temperature range.

Parameter

Symbol

Test Conditions

Min Typ Max Units

Power Good Threshold

VPG

VDRAIN - VEE, High to Low transition

1.5 1.75 2.0 V

Power Good Threshold Hysteresis VPGHY

0.4

V

Drain Input Bias Current

IDRAIN

VDRAIN = 48V

15 50 µA

Output Low Voltage

VOL

SC4@250VHD,RAVINO=L =5VP,WIOR=GD1m-AVDRAIN

1

V

SC4@25V0DLR,AINV=OL1=V,PWIO R=G1DmA- VEE

1

V

Output Leakage

IOH

SC4250H, VDRAIN -VEE = 1V, VPWRGD = 80V

1.0 10 µA

SC4250L, VDRAIN -VEE = 5V

1.0 10 µA

AC Characteristics

OV High to Gate Low

UV Low to Gate Low

OV Low to Gate High

UV Low to Gate High

SENSE High to Gate Low

DRAIN Low to PWRGD Low

DRAIN Low to (PWRGD - DRAIN)

High

tPHLOV

tPHLUV

tPLHOV

tPLHUV

tPHLSENSE

tPHLPG

DRAIN High to PWRGD High

DRAIN High to (PWRGD - DRAIN)

Low

tPLHPG

Gate ON Time - Time Delay

tON_1

VDRAIN > 8V, after short circuit

Gate ON Time - Time Delay

tON_2

VDRAIN < 7V, after short circuit

Note:

(1) This device is ESD sensitive. Use of standard ESD handling precaution is required.

1.7

µs

1.5

µs

5.5

µs

6.5

µs

3

µs

µs

0.5

0.5

µs

5

µs

250

µs

 2005 Semtech Corp.

3

www.semtech.com

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