4

KB1365

Kingbor Technology Co.,Ltd

TEL:(86)0755-26508846 FAX:(86)0755-26509052

REV: 1.0

Many types of capacitors can be used for input bypassing,

however, caution must be exercised when using multi-

layer ceramic capacitors. Because of the self-resonant and

high Q characteristics of some types of ceramic capaci-

tors, high voltage transients can be generated under some

start-up conditions, such as connecting the charger input

to a live power source. Adding a 2.2

Ω resistor in series

with an X5R ceramic capacitor will minimize start-up

voltage transients.

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

GATE DRIVER

Gate Driver Source Current

0.5

A

Gate Driver Sink Current

1A

Gate Driver Output-Voltage High

V

Gate Driver Output-Voltage Low

0.5

V

DIM INPUT

Maximum DIM Frequency

20

kHz

DIM Input-Voltage High

2.8

V

DIM Input-Voltage Low

0.6

V

DIM Hysteresis

200

mV

DIM Turn-On Time

100

ns

DIM Turn-Off Time

100

ns

DIM Input Leakage High

10

µA

DIM Input Leakage Low

-1

+1

µA

4.5

5.5

V

Regulator Output Voltage

4.0

5.5

V

Load Regulation

4

Ω

Line Regulation

11

mV

Power-Supply Rejection Ratio

PSRR

-35

dB

45

mA

Current Limit

18

mA

Regulator Startup Time

350

us

6.0

ELECTRICAL CHARACTERISTICS

Note 2: Vin Bypass Capacitor

Layout suggestion

KB1365

L

NMOS

GND

Rs

D

LED+ LED

DIM

100uH

(6V max)