ZXLD1370

ZXLD1370

Document number: DS32165 Rev. 4 - 2

4 of 36

www.diodes.com

March 2011

© Diodes Incorporated

A Product Line of

Diodes Incorporated

Symbol

Parameter

Rating

Unit

Input supply voltage relative to GND

-0.3 to 65

V

Auxiliary supply voltage relative to GND

-0.3 to 65

V

Current monitor input relative to GND

-0.3 to 65

V

-0.3 to 5

V

Gate driver output voltage

-0.3 to 20

V

Gate driver continuous output current

18

mA

Flag output voltage (Note 3)

-0.3 to 40

V

Other input pins (Note 3)

-0.3 to 5.5

V

Maximum junction temperature

150

°C

Storage temperature

-55 to 150

°C

These are stress ratings only. Operation outside the absolute maximum ratings may cause device failure.

Operation at the absolute maximum rating for extended periods may reduce device reliability.

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

Junction-to-Ambient,

TSSOP-16 EP

50

°C/W

Junction-to-Case,

TSSOP-16 EP

23

°C/W

Recommended Operating Conditions

Symbol

Parameter

Performance/Comment

Min

Max

Unit

Input supply voltage range

Normal operation

8

60

V

Functional (Note 5)

6.3

Auxiliary supply voltage range (Note 6)

Normal operation

8

60

V

Functional

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 7)

300

1000

kHz

range

0

V

Recommended PWM dimming frequency range

(Note 4)

To achieve 1000:1 resolution

100

500

Hz

To achieve 500:1 resolution

100

1000

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

Operating Junction Temperature Range

-40

125

°C

GI

Gain setting ratio for boost and buck-boost modes

0.20

0.50

Notes:

3.For correct operation SGND and PGND should always be connected together.

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

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

tested in production.