SC453 Ver la hoja de datos (PDF) - Semtech Corporation

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componentes Descripción

Fabricante

SC453

Portable, VID Programmed Single Phase Power Supply Controller

Semtech Corporation 

POWER MANAGEMENT

Electrical Characteristics (Cont.)

Parameter

Symbol

Conditions

CORE Comparator (CMP, REFIN, HYS) (Cont.)

Hysteresis Setting

Current SLP = low

RHYS = 17K

ICMP

RHYS = 170K

Hysteresis Setting

Current SLP = high

ISLP_ ICMP

RHYS = 17K

Current Limit Comparator (CL, CLRF, HYS)

VCMP < VREFIN

VCMP > VREFIN

VCMP < VREFIN

VCMP > VREFIN

VCMP < VREFIN

VCMP > VREFIN

Input Bias Current

ICL

VCL1, 2 = 1.3V

Input Voltage Offset

VCL- VCLRF

RHYS = 17K

Current Limit Setting

Current SLP = low

ICLRF

RHYS = 170K

Current Limit Setting

Current SLP = high

ISLP_CLRF

RHYS = 17K

Zero-Crossing (Powersave) Comparators (CL, CORE)

VCL < VCLRF

VCL > VCLRF

VCL < VCLRF

VCL > VCLRF

VCL < VCLRF

VCL > VCLRF

Offset

High Side Driver (TG)

VCL- VCORE

Peak Output Current(1)

Output Resistance

Rise Time(1)

Fall Time(1)

Ipkh

RSRC_TG

RSINK_TG

trTG

tfTG

I = 100mA,

VBST-VDRN = 5V

VDRN < 1V

VDRN > 1V

I = 100mA, VBST-VDRN = 5V

CTG = 3nF, VBST-VDRN = 5V

CTG = 3nF, VBST-VDRN = 5V

SC453

Min

Typ

Max Units

-110

-100

-90

90

100

110

μA

-7

-10

-13

7

10

13

-83

-73

-63

μA

63

73

83

|±2|

μA

|±3|

|±5|

mV

150

200

250

250

300

350

μA

15

20

25

25

30

35

120

150

180

μA

195

230

265

|±5|

mV

1.5

A

4.2

Ω

1

4

0.7

1.4

Ω

60

ns

36

ns

© 2006 Semtech Corp.

6

www.semtech.com

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