TCM680 datasheet(2/18 Pages) MICROCHIP

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TCM680

DS21486C-page 2

1.0

ELECTRICAL

CHARACTERISTICS

Absolute Maximum Ratings†

VIN .......................................................................+5.8V

VOUT

+ ................................................................ +11.6V

VOUT

– .................................................................-11.6V

VOUT

+ Short-Circuit Duration...................... Continuous

VOUT

+ Current ....................................................75 mA

VIN dV/dT ....................................................... 1 V/µsec

Power Dissipation (TA ≤ 70°C)

8-Pin PDIP ..............................................730 mW

8-Pin SOIC ..............................................470 mW

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

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

Maximum Junction Temperature ...................... +150°C

† Notice: Stresses above those listed under "Maximum

Ratings" may cause permanent damage to the device.

This is a stress rating only and functional operation of

the device at those or any other conditions above those

indicated in the operation listings of this specification is

not implied. Exposure to maximum rating conditions for

extended periods may affect device reliability

DC CHARACTERISTICS

Electrical Specifications: Unless otherwise noted, VIN = +5V, TA = +25°C, refer to Figure 1-1.

Parameters

Sym

Min

Typ

Max

Units

Conditions

Supply Voltage Range

VIN

2.0

—

5.5

-40°C

≤ TA ≤ +85°C, RL = 2 kΩ

Supply Current

IIN

—0.5

1.0

VIN = 3V, RL = ∞

—1.0

2.0

VIN = 5V, RL = ∞

——

2.5

VIN = 5V, 0°C ≤ TA ≤ +70°C, RL = ∞

——

3.0

VIN = 5V, -40°C ≤ TA ≤ +85°C, RL = ∞

Negative Charge Pump Output

Source Resistance

ROUT

—

140

180

– = 10 mA, I

+ = 0 mA, V

IN = 5V

—

180

250

– = 5 mA, I

+ = 0 mA, V

IN = 2.8V

—

220

250

—

0°C

≤ TA ≤ + 70°C

-40°C

≤ TA ≤ + 85°C

– = 10 mA, I

+ = 0 mA, V

IN = 5V

Positive Charge Pump Output

Source Resistance

ROUT

140

180

+= 10 mA, I

– = 0 mA, V

IN = 5V

—

180

250

+= 5 mA, I

– = 0 mA, V

IN = 2.8V

—

220

250

—

0°C

≤ TA ≤ + 70°C

-40°C

≤ TA ≤ + 85°C

+ = 10 mA, I

– = 0 mA, V

IN = 5V

Oscillator Frequency

FOSC

—21

—

kHz

Power Efficiency

PEFF

—85

—

RL = 2 kΩ

Voltage Conversion Efficiency

VOUTEFF

—

VOUT

+, R

L = ∞

—

VOUT

–, R

L = ∞

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