OB2269AP datasheet(5/12 Pages) LITEON

5 / 12 page

©On-Bright Electronics

Confidential

A Liteon Semiconductor Company

- 5 -

V2.1

OB2268

OB2269

Current Mode PWM Controller

ESD INFORMATION

Symbol

Parameter

Test Conditions

Min

Typ

Max

Unit

HBM

Note

Human Body Model

MIL-STD

Machine Model on

All Pins

JEDEC-STD

250

Note: HBM all pins pass 2KV except VIN pin. The details are VIN passes 1kV, VDD and GATE pass 2KV, all other I/Os pass 8KV. In

system application, VIN pin is either a high impedance input or left floating. The lower rating has minimum impacts on system ESD

performance.

ELECTRICAL CHARACTERISTICS

(TA = 25

OC if not otherwise noted)

Symbol

Parameter

Test Conditions

Min

Typ

Max

Unit

Supply Voltage (VDD, VIN)

I_VDD_Startup

VDD Start up

Current

VDD =15V, RI=100K

Measure current into VDD

I_VDD_Operation

Operation Current

VDD=18V, RI=100Kohm,

VFB=3V, Gate floats

2.3

UVLO(ON)

VDD Under

Voltage Lockout

Enter

9.5

10.5

11.5

UVLO(OFF)

VDD Under

Voltage Lockout

Exit (Recovery)

15.5

16.5

17.5

OVP(ON)

*Optional

VDD Over Voltage

Protection Enter

23.5

26.5

OVP(OFF)

*Optional

VDD Over Voltage

Protection Exit

(Recovery)

21.5

24.5

OVP_Hysteresis

OVP(ON)-

OVP(OFF)

TD_OVP

VDD OVP

Debounce time

uSec

VDD_Clamp

VDD Zener Clamp

Voltage

I(VDD ) = 10 mA

Feedback Input Section(FB Pin)

VFB_Open

VFB Open Loop

Voltage

6.0

IFB_Short

FB pin short circuit

current

Short FB pin to GND and

measure current

0.65

VTH_BM

Burst Mode FB

Threshold Voltage

1.8

VTH_PL

Power Limiting FB

Threshold Voltage

4.4

TD_PL

Power limiting

Debounce Time

mSec

ZFB_IN

Input Impedance

9.0

Kohm

Current Sense Input(Sense Pin)

T_blanking

Leading edge

blanking time

RI = 100Kohm

400

ZSENSE_IN

Input Impedance

Kohm

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