LD8116C datasheet(5/13 Pages) LEADTREND

5 / 13 page

LD8116C

05/05/2018

Leadtrend Technology Corporation

www.leadtrend.com.tw

LD8116C-DS-00 May 2018

Electrical Characteristics

(VCC=32.0V, TA = 25C unless otherwise specified.)

PARAMETER

CONDITIONS

SYMBOL

MIN

TYP

MAX

UNITS

Supply Voltage (VCC Pin)

UVLO (ON)

VCC_ON

6.0

7.0

8.0

UVLO (OFF)

VCC_OFF

5.2

6.0

6.8

Operating Current

RISET=100kohm, DIM pin and

CLAMP pin is floating.

IVCC

600

850

μA

ISET Pin

Open Voltage

ISET pin is floating

VISET_OPEN

2.45

2.5

2.55

Current Ratio of IDIM to ISET

( Calculate IDIM/ISET )

KDIM

Current Ratio of ICLAMP to ISET

( Calculate ICLAMP / ISET)

KCLAMP

0.4

DIM Pin (Dimming function)

Open Voltage

RISET=100kohm, DIM pin is

floating.

VDIM_OPEN

12.2

13.8

Maximum on level

Output duty =100%

VDIM_MAX_ON

10.45

10.65

10.85

OUT pin Duty Mapping

When VDIM=1.65V

DVDIM_1.65V

10.0

When VDIM=5.65V

DVIM_5.65V

49.0

When VDIM=9.65V

DVIM_9.65V

90.0

Bias Current

RISET=100kΩ;

IDIM_100

100

103

μA

High Level of PWM input

signal

VDIM_PWM_H

3.2

Low Level of PWM input

signal

VDIM_PWM_L

1.2

PWM Dimming Mode Setting

Trigger

rising

rate

and

continuous 8 times

Slew

V/μ

Cut off Level

Output duty = 0%

VDIM_off

1.23

1.3

1.37

Cut off Recovery Hysteresis

Voltage

*; Output duty = 0%

VDIM_off,Hys

0.1

CLAMP Pin ( Clamping min. dimming )

Open Voltage

RISET=100kohm, Clamp pin is

floating.

VCLAMP_OPEN

4.7

5.0

5.3

Minimum Duty Cycle Clamp

Note: When RISET=100K Ohm

*;VCLAMP ≧ 4.2V &VDIM=1.2V

DOUT_0%

VCLAMP ≦ 0.5V & VDIM=1.4V

DOUT_8%

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