ZXLD1370Q

Document number: DS37117 Rev. 4 - 2

4 of 39

www.diodes.com

February 2018

© Diodes Incorporated

ZXLD1370Q

ESD Susceptibility

ESD Susceptibility

Rating

Unit

HBM

Human Body Model

1,500

V

CDM

Charged Device Model

1,000

V

Caution:

Semiconductor devices are ESD sensitive and may be damaged by exposure to ESD events. Suitable ESD precautions should be taken when handling

and transporting these devices.

Package Thermal Data

Thermal Resistance

Package

Typical

Unit

TSSOP-16EP

50

°C/W

TSSOP-16EP

23

°C/W

Note:

7. Measured on High Effective Thermal Conductivity Test Board" according JESD51.

Recommended Operating Conditions

Symbol

Parameter

Performance/Comment

Min

Max

Unit

Input Supply Voltage Range

Normal Operation

8

60

V

Reduced Performance Operation

(Note 8)

6.3

Auxiliary Supply Voltage Range (Note 9)

Normal Operation

8

60

V

Reduced Performance Operation

(Note 8)

6.3

Current Sense Monitor Input Range

—

6.3

60

V

Differential Input Voltage

0

450

mV

External DC Control Voltage Applied to ADJ Pin to

Adjust Output Current

DC Brightness Control Mode from

10% to 200%

0.125

2.5

V

Reference External Load Current

REF Sourcing Current

—

1

mA

Recommended Switching Frequency Range

(Note 10)

—

300

1,000

kHz

—

0

V

Recommended PWM Dimming Frequency Range

To Achieve 1000:1 Resolution

100

500

Hz

To Achieve 500:1 Resolution

100

1,000

Hz

PWM Pulse Width in Dimming Mode

PWM Input High or Low

0.002

10

ms

PWM Pin High-Level Input Voltage

—

2

5.5

V

PWM Pin Low-Level Input Voltage

—

0

0.4

V

Junction Temperature Range

—

-40

+125

°C

Ambient Temperature Range

—

-40

+125

°C

GI

Gain Setting Ratio for Boost and Buck-Boost Modes

0.20

0.50

—

Notes:

8. Device starts up above 6V and as such the minimum applied supply voltage has to be above 6.5V (plus any noise margin). The ZXLD1370Q will,

however, continue to function when the input voltage is reduced from

≥ 8V down to 6.3V. When operating with input voltages below 8V, the output

current and device parameters may deviate from their normal values; and is dependent on power MOSFET switch, load and ambient temperature

– a boot-strap network cannot be

10. The device contains circuitry to control the switching frequency to approximately 400kHz. The maximum and minimum operating frequency is not tested

in production.