LTC4440 datasheet(2/12 Pages) LINER

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LTC4440

4440i

Supply Voltage

VCC ....................................................... – 0.3V to 15V

BOOST – TS ......................................... – 0.3V to 15V

INP Voltage ............................................... – 0.3V to 15V

BOOST Voltage (Continuous) ................... – 0.3V to 95V

BOOST Voltage (100ms) ........................ – 0.3V to 115V

TS Voltage (Continuous) ............................. – 5V to 80V

TS Voltage (100ms) ................................... – 5V to 100V

ORDER PART

NUMBER

LTC4440EMS8E

TJMAX = 150°C, θJA = 40°C/W (NOTE 4)

EXPOSED PAD IS GND (PIN 9)

MUST BE SOLDERED TO PCB

ABSOLUTE MAXIMUM RATINGS

PACKAGE/ORDER INFORMATION

(Note 1)

Peak Output Current < 1

µs (TG) ............................... 4A

Driver Output TG (with Respect to TS) ..... – 0.3V to 15V

Operating Ambient Temperature Range

(Note 2) .............................................. – 40

°C to 85°C

Junction Temperature (Note 3) ............................ 150

°C

Storage Ambient Temperature Range ... – 65

°C to 150°C

Lead Temperature (Soldering, 10 sec).................. 300

°C

MS8E

PART MARKING

LTF9

INP

GND

VCC

GND

BOOST

TOP VIEW

MS8E PACKAGE

8-LEAD PLASTIC MSOP

ORDER PART

NUMBER

LTC4440ES6

PART MARKING

LTZY

VCC 1

GND 2

INP 3

6 BOOST

5 TG

4 TS

TOP VIEW

S6 PACKAGE

6-LEAD PLASTIC SOT-23

TJMAX = 150°C, θJA = 230°C/W

The q denotes specifications which apply over the full operating

temperature range, otherwise specifications are at TA = 25°C. VCC = VBOOST = 12V, VTS = GND = 0V, unless otherwise noted.

Consult LTC Marketing for parts specified with wider operating temperature ranges.

ELECTRICAL CHARACTERISTICS

SYMBOL

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

Main Supply (VCC)

IVCC

DC Supply Current

Normal Operation

INP = 0V

250

400

µA

UVLO

VIN < UVLO Threshold – 0.1V

µA

UVLO

Undervoltage Lockout Threshold

VCC Rising

5.7

6.5

7.3

VCC Falling

5.4

6.2

7.0

Hysteresis

300

Bootstrapped Supply (BOOST – TS)

IBOOST

DC Supply Current

Normal Operation

INP = 0V

110

180

µA

UVLO

VBOOST – VTS < UVLOHS – 0.1V, INP = 0V

170

µA

UVLOHS

Undervoltage Lockout Threshold

VBOOST – VTS Rising

6.75

7.4

7.95

VBOOST – VTS Falling

6.25

6.9

7.60

Hysteresis

500

Input Signal (INP)

VIH

High Input Threshold

INP Ramping High

1.3

1.6

VIL

Low Input Threshold

INP Ramping Low

0.85

1.25

1.6

VIH – VIL

Input Voltage Hysteresis

0.350

IINP

Input Pin Bias Current

±0.01

±2

µA

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