TC642EV datasheet(3/28 Pages) MICROCHIP

3 / 28 page

 2002 Microchip Technology Inc.

DS21444C-page 3

TC642

1.0

ELECTRICAL

CHARACTERISTICS

Absolute Maximum Ratings*

Supply Voltage ......................................................... 6V

Input Voltage, Any Pin.... (GND – 0.3V) to (VDD +0.3V)

Package Thermal Resistance:

PDIP (RθJA).............................................125°C/W

SOIC (RθJA) ............................................155°C/W

MSOP (RθJA) ..........................................200°C/W

Specified Temperature Range ........... -40°C to +125°C

Storage Temperature Range.............. -65°C to +150°C

*Stresses above those listed under "Absolute Maximum Rat-

ings" may cause permanent damage to the device. These are

stress ratings only and functional operation of the device at

these or any other conditions above those indicated in the

operation sections of the specifications is not implied. Expo-

sure to absolute maximum rating conditions for extended peri-

ods may affect device reliability.

ELECTRICAL SPECIFICATIONS

Note 1: Ensured by Design, not tested.

Electrical Characteristics: TMIN < TA < TMAX, VDD = 3.0V to 5.5V, unless otherwise specified.

Symbol

Parameter

Min

Typ

Max

Units

Test Conditions

VDD

Supply Voltage

3.0

—

5.5

IDD

Supply Current, Operating

—

0.5

1.0

Pins 6, 7 Open,

CF = 1 µF, VIN = VC(MAX)

IDD(SHDN)

Supply Current, Shutdown Mode

—

µA

Pins 6, 7 Open,

CF = 1 µF, VMIN = 0.35V,

Note 1

IIN

VIN, VMIN Input Leakage

- 1.0

—

+1.0

µA

Note 1

VOUT Output

VOUT Rise Time

—

µsec

IOH = 5 mA, Note 1

VOUT Fall Time

—

µsec

IOL = 1 mA, Note 1

tSHDN

Pulse Width (On VMIN) to

Clear Fault Mode

—

µsec

VSHDN, VHYST Specifications,

Note 1

IOL

Sink Current at VOUT Output

1.0

—

VOL = 10% of VDD

IOH

Source Current at VOUT Output

5.0

—

VOH = 80% of VDD

VIN, VMIN Inputs

VC(MAX), VOTF

Input Voltage at VIN or VMIN

for 100% PWM Duty Cycle

2.5

2.65

2.8

VC(SPAN)

VC(MAX) - VC(MIN)

1.3

1.4

1.5

VSHDN

Voltage Applied to VMIN to

ensure Shutdown Mode

——

VDD x 0.13

VREL

Voltage Applied to VMIN to

Release Shutdown Mode

VDD x 0.19

—

VDD = 5V

Pulse Width Modulator

FPWM

PWM Frequency

CF = 1.0 µF

SENSE Input

VTH(SENSE)

SENSE Input Threshold

Voltage with Respect to GND

Note 1

FAULT Output

VOL

Output Low Voltage

—

0.3

IOL = 2.5 mA

tMP

Missing Pulse Detector Timer

—

32/F

—

Sec

tSTARTUP

Start-up Timer

—

32/F

—

Sec

tDIAG

Diagnostic Timer

—

3/F

—

Sec

TC642EV Datasheet(PDF) 3 Page - Microchip Technology

TC642EV Datasheet(HTML) 3 Page - Microchip Technology

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28

Datasheet Download

Link URL