RS2051 Просмотр технического описания (PDF) - Orister Corporation

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производитель

RS2051

Novel Low Cost Green-Mode PWM Controller with Soft Start & Latch Mode

Orister Corporation 

Page No. : 3/13

Absolute Maximum Ratings

Symbol

VDD

IOVP

VFB

VSEN

PD

ESD

Parameter

Supply voltage Pin Voltage

VDD OVP maximal enter current

Input Voltage to FB Pin

Input Voltage to SEN Pin

Power Dissipation

ESD Capability, HBM Model

ESD Capability, Machine Model

TL

Lead Temperature

(Soldering)

TSTG Storage Temperature Range

20second:

SOT-23-6L

10second:

DIP-8

10second:

SOP-8

RECOMMENDED OPERATION CONDITION

Symbol

VDD

RI

TOA

PO

FPWM

Parameter

VDD Supply Voltage

RI PIN Resistor Value

Operation Ambient Temperature

Output Power

Frequency of PWM

Rating

Unit

40

V

20

mA

-0.3 to 6V

V

-0.3 to 6V

V

300

mW

2500

V

250

V

220

℃

260

℃

230

-55 to + 150

℃

Min ~ Max

11~20

65~130

-20~85

0~80

30~150

Unit

V

K ohm

℃

W

KHz

Electrical Characteristics (Ta=25°C unless otherwise noted, VDD = 15V.)

Symbol

IST

ISS

VDDON

VDDOFF

VDCLAMP

VDDAIS

TSS

TOFF

TRESTART

IFB

VFB

IFB_0D

IPFM

ICRM

VPFM

VCRM

IOLP&SCP

VOLP&SCP

TOLP&SCP

VTH_L

VTH_H

TPD

RCS

VSCP

TSCP

FOSC

Parameter

Conditions

Min.

Startup Current

Supply Voltage (VDD Pin)

Operating Current

Turn-on Threshold Voltage

VFB=0V

VFB=3V

VFB=Open

Turn-off Threshold Voltage

VDD Clamp Voltage

Anti Intermission Surge

VDD Voltage

IVDD=20mA

Soft start Time

Over temperature Protection

Temperature restart

Voltage Feedback (FB Pin)

Short Circuit Current

Open Loop Voltage

VFB=0V

VFB=Open

Zero Duty Cycle FB current

Enter PFM&PWM, FB current

Enter CRM, FB current

PFM Threshold VFB

Enter CRM Threshold VFB

Enter OLP&SCP FB current

Enter OLP&SCP FB voltage

OLP&SCP min. delay Time RI=100K

33

Current Sensing (SEN Pin)

Minimum Voltage Lever

Maximum Voltage Lever

Delay to Output

Input Impedance

Sense short protect voltage

Sen. short protect Delay Time

Oscillator (RI Pin)

Normal Frequency

RI=100Kohm

55

Typ.

1.5

3.2

2.2

1.65

12.8

7.8

25.6

12.7

1.2

130

100

1.57

4.6

1.47

1.37

1.45

0.51

0.30

152

4.2

0.65

0.85

150

50

177

1.2

60

DS-RS2051-02 September, 2007

Max.

50

65

Unit

μA

mA

mA

mA

V

V

V

V

mS

℃

℃

mA

V

mA

mA

mA

V

V

uA

V

mS

V

V

ns

KΩ

mV

mS

KHz

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