LV52205MU 查看數據表（PDF） - ON Semiconductor

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LV52205MU

LED Boost Driver with PWM Dimming

ON Semiconductor 

LV52205MU

Specifications

Absolute Maximum Ratings at Ta = 25C

Parameter

Symbol

Conditions

Ratings

Unit

Maximum supply voltage

Maximum pin voltage1

VCC max

V1 max

VCC

SW

5.5

V

42

V

Maximum pin voltage2

V2 max

Other pin

5.5

V

Allowable power dissipation

Pd max

Ta = 25C *1

2.05

W

Operating temperature

Topr

-30 to +85

C

Storage temperature

Tstg

-55 to +125

C

*1 Mounted on a specified board: 70mm50mm1.2mm (4 layer glass epoxy)

Caution 1) Absolute maximum ratings represent the values which cannot be exceeded for any length of time.

Caution 2) Even when the device is used within the range of absolute maximum ratings, as a result of continuous usage under high temperature, high current,

high voltage, or drastic temperature change, the reliability of the IC may be degraded. Please contact us for the further details.

Stresses exceeding those listed in the Maximum Ratings table may damage the device. If any of these limits are exceeded, device functionality should not be assumed,

damage may occur and reliability may be affected.

Recommendation Operating Condition at Ta = 25C

Parameter

Supply voltage range1

PWM frequency

Symbol

VCC op

Fpwm

VCC

Conditions

Ratings

Unit

2.7 to 5.5

V

300 to 100k

Hz

Functional operation above the stresses listed in the Recommended Operating Ranges is not implied. Extended exposure to stresses beyond the Recommended

Operating Ranges limits may affect device reliability.

Electrical Characteristics Analog block at Ta  25C, VCC = 3.6V, unless otherwise specified

Parameter

Symbol

Conditions

Ratings

min

typ

Standby current dissipation

DC/DC current dissipation

FB voltage

ICC1

ICC2

Vfb

SHUTDOWN

VOUT = 30V, ILED = 20mA

PWM duty 100%

0

0.19

0.2

FB pin leak current

Ifb

OVP voltage

Vovp

SW

40

41

SWOUT ON resistance

Ron

IL = 100mA

700

NMOS switch current limit

ILIM

Vfb = 200mV

0.7

OSC frequency

Fosc

600

High level input voltage

Low level input voltage

Under voltage lockout

PWM setup time from

shutdown

PWM low time to shutdown

VINH

VINL

Vuvlo

Ton

Toff

PWM

PWM

VIN falling

1.5

0

2.2

20

8.9

Unit

max

5 A

1 mA

0.21

V

1 A

42

V

m

A

kHz

VCC

V

0.4

V

V

us

ms

Product parametric performance is indicated in the Electrical Characteristics for the listed test conditions, unless otherwise noted. Product performance may not be

indicated by the Electrical Characteristics if operated under different conditions.

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