SC453 Просмотр технического описания (PDF) - Semtech Corporation

Номер в каталоге

Компоненты Описание

производитель

SC453

Portable, VID Programmed Single Phase Power Supply Controller

Semtech Corporation 

SC453

POWER MANAGEMENT

Electrical Characteristics (Cont.)

Parameter

Symbol

Conditions

Soft-Start & DAC Slew (SS)

Soft-Start/DAC

Slew Current

Note:

SS cap is not discharged

until EN goes low or

UVLO cuts in. To enable

the converter, SS has to

drop below VSS_EN.

Soft-Start

Enable Threshold

DAC (VID [5:0])

ISS

VSS_EN

Discharge (sink) Current

Soft-Start transition 0 < TA < 85°C,

- 40 < TA < 85° C

Sleep Exit, 0 < TA < 85°C

Sleep Exit, -40 < TA < 85°C

VID Transition, 0 < TA < 85°C

VID Transition, -40 < TA < 85°C

VID Input Threshold

DAC Output

Voltage Accuracy

ViH_VID

ViL_VID

VDAC_ERR

Boot Voltage (BOOTV)

Input Voltage Offset

BOOT Delay Time(1)

VBOOTV-

VDAC

TBOOT

0° < TA < 85°C, VID [5:0] = 000000

"111111(1.708V" 0.812V)

-25°C < TA < 85°C, VID [5:0] = 000000

"111111 (1.708V" 0.700V)

BOOTV = 1.2V

Sleep (SLP, SLPV)

Input Voltage Offset

VSLPV-VDAC

SLP Logic Threshold

ViH_SLP

ViL_SLP

CORE Comparator (CMP, REFIN, HYS)

SLPV = 0.8V

Input Bias Current

Input Voltage Offset

IREFIN

VCMP -

VREFIN

VREFIN = 1.3V

Min

5

7.5

204

180

102

90

0.55

-0.85

-2.0

10

2

Typ

Max Units

10

mA

10.5

16

256

310

240

320

μA

128

155

120

160

40

100

mV

V

0.45

+0.85

%

+2.0

%

|±3|

%

35

μs

|±3|

%

V

0.8

|±2|

μA

|±1.5| |±3|

mV

© 2006 Semtech Corp.

5

www.semtech.com

Share Link: