Rev. 1.00

6

���i� ��� �011

Rev. 1.00

7

���i� ��� �011

HT7L4091

Universal Step-Down PWM Control

For High Brightness LED Lighting Control

Electrical Characteristics

Symbol

Description

Test Condition

Min.

Typ.

Max.

Unit

Input

In�ut DC su���y vo�tage

—

11

—

V

In�ut O�e�ation Cu��ent

GDR �in floating

—

0.6

1

m�

Sta�tu� In�ut cu��ent

—

15

30

μA

��.4

�5

�7.6

V

Internal Regulator

Inte�na��y �egu�ated vo�tage

4.5

5

5.5

V

0

—

100

mV

0

—

100

mV

th�esho�d

15

16

17

V

th�esho�d

9

10

11

V

In�ut �ow vo�tage fo� PDM �in

—

—

0.�

V

In�ut high vo�tage fo� PDM �in

�.0

—

—

V

PDM �in Pu��-�ow �esisto�

—

50

100

150

KΩ

Cu��ent sense t�i� th�esho�d

vo�tage

—

0.�4

0.�4�

0.�55

V

De�ay f�om CS t�i� to GDR

—

110

—

ns

Linea� Dimming �in vo�tage

�ange

—

0

—

V

B�anking inte�va�

—

�00

300

400

ns

Off time

14.7

16.4

1�.1

μs

G�TE Out�ut Low Leve�

—

—

0.3

V

G�TE Out�ut High Leve�

1�

—

—

V

Gate out�ut �ise time

—

1�0

—

ns

Gate out�ut fa�� time

—

50

—

ns

The�ma� shutdown tem�e�atu�e

—

—

140

—

—

The�ma� shutdown tem�e�atu�e

hyste�esis

—

—

�5

—

—

Switch f�equency jitte� �atio

—

—

±4

—

%

Jitte� Pe�iod

—

4

—

ms

Short circuit protection Voltage

—

0.45

0.5

0.55

V

Note 3: Specifications are production tested at TA=room temperature. Specifications over the -40°C to 85°C

o�e�ating tem�e�atu�e �ange a�e assu�ed by design� cha�acte�ization and co��e�ation with Statistica� Qua�ity

Cont�o�s (SQC).