ZXLD1360Q 데이터 시트보기 (PDF) - Diodes Incorporated.

부품명

상세내역

제조사

ZXLD1360Q

AUTOMOTIVE GRADE 30V 1A LED DRIVER

Diodes Incorporated. 

Block Diagram

VIN

ZXLD1360Q

D1

RS

`L1

5 VIN

4 ISENSE

1 LX

C1

4.7µF

5V

Voltage

regulator

R1

0.2V

ADJ

3

R4 R5

200k 20k

R2

Low voltage

detector

MN

D1

1.25V

GND

2

R3

1.35V

Figure 1 Block diagram – With Pin Connections

Pin Descriptions

Name

LX

GND

ADJ

ISENSE

VIN

Pin No.

1

2

3

4

5

Description

Drain of NDMOS switch

Ground (0V)

Multi-function On/Off and brightness control pin:

• Leave floating for normal operation (VADJ = VREF = 1.25V giving nominal average output current

IOUTnom = 0.1/RS)

• Drive to voltage below 0.2V to turn off output current

• Drive with DC voltage (0.3V < VADJ < 2.5V) to adjust output current from 25% to 200% of IOUTnom

• Drive with PWM signal from open-collector or open-drain transistor, to adjust output current

• Adjustment range 25% to 100% of IOUTnom for f>10kHz and 1% to 100% of IOUTnom for f < 500Hz

• Connect a capacitor from this pin to ground to increase soft-start time

(Default soft-start time = 500µs. Additional soft-start time is approximately 500µs/nF)

Connect resistor RS from this to VIN to define nominal average output current IOUTnom=0.1/RS

(Note: RSMIN=0.1V with ADJ pin open circuit)

Input Voltage (7V to 30V)

Decouple to ground with 4.7µF of higher X7R ceramic capacitor close to device

ZXLD1360Q

Document number: DS37115 Rev. 1 - 2

2 of 22

www.diodes.com

September 2015

© Diodes Incorporated

Share Link: