TC125/TC126

DS21372B-page 2

© 2002 Microchip Technology Inc.

1.0

ELECTRICAL

CHARACTERISTICS

Absolute Maximum Ratings*

....................................................... -0.3V to +12V

LX Sink Current ............................................ 400mA pk

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.

TC125/TC126 ELECTRICAL SPECIFICATIONS

Symbol

Parameter

Min

Typ

Max

Units

Test Conditions

Output Voltage

V

Operating Supply Voltage

0.70

—

10.0

V

Note 4

Start-Up Supply Voltage

—

0.80

0.90

V

Operating Supply Current

TC125

TC125/126

TC125/126

—

—

—

14

20

32

28

40

64

µA(Note 2)

No Load Supply Current

—

—

—

5

5

6

9

10

11

Standby Supply Current

—

—

—

2

3

3

4

5

5

Shutdown Supply Current

—

—

0.5

µA

LX Pin ON Resistance

—

—

—

10

6

3

14

8

5

Ω

(Note 2), (Note 3)

LX Pin Leakage Current

—

—

1

µA

No external components,

Duty Cycle

70

75

80

%

Measured at LX pin (Note 2)

Maximum Oscillator Frequency

85

100

115

kHz

Note 2

LX Pin Limit Voltage

0.7

—

1.1

V

Note 2

η

Efficiency

—

—

—

70

80

85

—

—

—

SHDN Input Logic High

0.75

—

—

V

SHDN Input Logic Low

—

—

0.20

V

SHDN Input Current (High)

—

—

0.25

µA

SHDN Pin Input Current (Low)

-0.25

—

—

µA

Note

1:

2:

3:

4: