TC105

DS21349B-page 2

© 2002 Microchip Technology Inc.

1.0

ELECTRICAL

CHARACTERISTICS

Absolute Maximum Ratings*

EXT Output Current ........................................±100mA

Power Dissipation.............................................150mW

Operating Temperature Range............. -40°C to +85°C

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

*Stresses above 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 above those indicated in the

operation sections of the specifications is not implied.

Exposure to Absolute Maximum Rating conditions for

extended periods may affect device reliability.

TC105 ELECTRICAL SPECIFICATIONS

Symbol

Parameter

Min

Typ

Max

Units

Test Conditions

Operating Supply Voltage

2.2

—

10.0

V

Minimum Input Voltage

0.9

—

2.2

V

EXT = High; No external components;

Operating Supply Current

—

—

57

67

102

122

µA

Standby Supply Current

—

—

15

16

27

29

µA

Shutdown Supply Current

—

—

0.5

µA

SHDN =GND

Oscillator Frequency

255

300

345

kHz

Output Voltage

Note 2

DTYMAX Maximum Duty Cycle (PWM Mode)

100

—

—

%

DTYPFM

Duty Cycle (PFM Mode)

15

25

35

%

SHDN Input Logic High

0.65

—

—

V

SHDN Input Logic Low

—

—

0.20

V

REXTH

—

—

—

17

16

12

24

22

17

Ω

REXTL

EXT ON Resistance to GND

—

—

—

15

14

10

20

19

14

Ω

η

Efficiency

—

92

—

%

Note

1:

2: