SC1110TSTRT データシートの表示（PDF） - Semtech Corporation

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SC1110TSTRT

Sink and Source DC/DC Controller for Termination Power Supply Applications

Semtech Corporation 

SC1110

POWER MANAGEMENT

Electrical Characteristics (Cont.)

Unless specified: VCC = 4.75V to 12.6V; GND = PGND = 0V; FB = VO; VBSTL = 12V; V = BSTH-PHASE 12V; TJ = 25oC

Parameter

Conditions

Min Typ Max Units

Timing

Minimum Off-Time

200

ns

Dead Time

Guaranteed by characterization

80

ns

MOSFET Drivers

Peak DH Sink/Source Current

BSTH - DH = 4.5V, DH - PHASE = 3.0V

0.5

A

DH - PHASE = 1.5V

0.1

Peak DL Sink/Source Current

BSTL - DL = 4.5V, DL - GND = 3.0V

0.5

A

DL - GND = 1.5V

0.1

Protection

Overcurrent Set Isource

Soft Start

VOCSET = 2.2V

180 200 220

µA

Charge Current

Discharge Current

Power Good

VSS = 1.5V

VSS = 1.5V

8

10

12

µA

1

2

3

µA

Upper Threshold

112

%

Lower Threshold

88

%

PWRGD Voltage Low

Reference

IPWRGD = 2mA

0.5

V

REFOUT Source Current

3

mA

Offset

Enable

REFIN = 1.25V

-5

5

mV

Threshold

0.55 0.60 0.65

V

 2004 Semtech Corp.

3

www.semtech.com

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