YB1508 查看數據表（PDF） - YOBON TECHNOLOGIES,INC.

零件编号

产品描述 (功能)

比赛名单

YB1508

Step-up DC-DC Converter , White LED Driver

YOBON TECHNOLOGIES,INC. 

Pin Description

YB1508

Step-up DC-DC Converter , White LED Driver

Figure 2：YB1508 SOT23-5

Pin Designator

Table 1 :

Pin

Name

1

SW

2

GND

3

FB

4

CTRL

5

VIN

Description

Switching Pin. This is the collector of the internal NPN power switch. Connect to

inductor and diode. Minimize the metal trace area connected to this pin to reduce

EMI.

Ground Pin. Connect directly to local ground plane.

Feedback Pin. Reference voltage is 200mV. Connect LEDs and a resistor at this

pin. LED current is determined by the resistance and CTRL voltage.

Shutdown Pin and Dimming Control pin.

A. VCTRL > 1.8V generates full-scale LED current

B. VCTRL < 0.4V chip is off

C. Switching from 0.4V to 2.0V, PWM duty cycle controls the LED current

Input Supply Pin. Bypass this pin with a capacitor as close to the device as

possible.

Ordering Information

Table 2:

Order Number

High Ovp YB1508

Low Ovp YB1508P

Package Type

SOT23-5

SOT23-5

Supplied as

3000 units Tape & Reel

3000 units Tape & Reel

Package Marking

Y58

Y58P

YB1508 MRev1.4

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