LTC2914 参数 Datasheet PDF下载

LTC2995

ABSOLUTE MAXIMUM RATINGS

(Notes 1, 2)

PIN CONFIGURATION

TOP VIEW

TMR

15

UV

14

OV

21

13

TO2

12

T01

11 V

REF

6

D

+

7

D

–

8

V

PTAT

9 10

GND

V

CC

GND

VH1

VL1 1

VH2 2

VL2 3

VT2 4

VT1 5

DS

PS

V

CC

.............................................................. –0.3V to 6V

TMR, D

+

, D

–

, DS, PS, V

PTAT

, V

REF

........ –0.3V to V

CC

+ 0.3V

UV, OV, TO1, T02

.......................................... –0.3V to 6V

VH1, VL1, VH2, VL2, VT1, VT2 ..................... –0.3V to 6V

Operating Ambient Temperature Range

LTC2995C ................................................ 0°C to 70°C

LTC2995I .............................................–40°C to 85°C

LTC 2995H ......................................... –40°C to 125°C

Storage Temperature Range .................. –65°C to 150°C

20 19 18 17 16

UD PACKAGE

20-LEAD (3mm

×

3mm) PLASTIC QFN

T

JMAX

= 150°C,

θ

JA

= 59°C/W

EXPOSED PAD PCB GROUND CONNECTED OPTIONAL

ORDER INFORMATION

LEAD FREE FINISH

LTC2995CUD#PBF

LTC2995IUD#PBF

LTC2995HUD#PBF

TAPE AND REEL

LTC2995CUD#TRPBF

LTC2995IUD#TRPBF

LTC2995HUD#TRPBF

PART MARKING*

LFQV

LFQV

LFQV

PACKAGE DESCRIPTION

20-Lead (3mm

×

3mm) Plastic QFN

20-Lead (3mm

×

3mm) Plastic QFN

TEMPERATURE RANGE

0°C to 70°C

–40°C to 85°C

–40°C to 125°C

20-Lead (3mm

×

3mm) Plastic QFN

Consult LTC Marketing for parts specified with wider operating temperature ranges. *The temperature grade is identified by a label on the shipping container.

For more information on lead free part marking, go to:

http://www.linear.com/leadfree/

For more information on tape and reel specifications, go to:

http://www.linear.com/tapeandreel/

ELECTRICAL CHARACTERISTICS

SYMBOL

V

CC

UVLO

I

CC

V

REF

PARAMETER

Supply Voltage

Supply Undervoltage Lockout Threshold

Average Supply Current

Reference Voltage

The

l

denotes the specifications which apply over the full operating

temperature range, otherwise specifications are at T

A

= 25°C, V

CC

= 3.3V, unless otherwise noted.

CONDITIONS

l

MIN

2.25

1.7

l

l

TYP

1.9

220

MAX

5.5

2.1

300

1.803

1.804

1.807

1.808

±1.5

–192

UNITS

V

V

μA

V

V

V

V

mV

μA

V

CC

Falling

Temperature Measurement

LTC2995

LTC2995C

LTC2995I

LTC2995H

I

LOAD

= ±200μA

l

l

l

l

1.797

1.793

1.790

1.787

–8

1.8

1.8

1.8

1.8

V

REF

Load Regulation

Remote Diode Sense Current

2995f

2