IS31LT3354

Integrated Silicon Solution, Inc. – www.issi.com

Rev. A, 09/01/2011

4

ELECTRICAL CHARACTERISTICS

Symbol

Parameter

Conditions

Min.

Typ.

Max.

Unit

Gate sourcing current

80

mA

Gate sinking current

100

mA

Brightness control range at low

frequency PWM signal

PWM frequency =100Hz PWM

amplitude=5V,Vin=15V,

L=27uH, Driving 1 LED

1200:1

Brightness control range at low

frequency PWM signal

PWM frequency =10KHz PWM

amplitude=5V,Vin=15V,

L=27uH, Driving 1 LED

13:1

Operating frequency

ADJ pin floating

154

KHz

Minimum switch ‘ON’ time

200

ns

Minimum switch ‘OFF’ time

200

ns

Recommended maximum

operating frequency

1

MHz

Recommended duty cycle range

0.3

0.7

0.9

Internal comparator propagation

delay

50

ns

Thermal shutdown temperature

140

°C

Thermal shutdown hysteresis

20

°C

Notes:

1.

Stresses beyond those listed under absolute maximum ratings may cause permanent damage to the device. These are stress ratings only,

and functional operation of the device at these or any other conditions beyond those indicated under recommended operating conditions is

not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.

2.

3.

Guaranteed by design