TC2682EUA datasheet(2/10 Pages) MICROCHIP

No. de pieza	TC2682EUA

Descripción Electrónicos	Inverting Charge Pump Voltage Doublers

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Fabricante Electrónico	MICROCHIP [Microchip Technology]

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TC2682/TC2683/TC2684

DS21548B-page 2

 2002 Microchip Technology Inc.

1.0

ELECTRICAL

CHARACTERISTICS

Absolute Maximum Ratings*

Input Voltage (VIN to GND)....................... +6.0V, -0.3V

Output Voltage (VOUT to GND)............... -12.0V, +0.3V

Current at VOUT Pin.............................................20mA

Short-Circuit Duration VOUT to GND ..............Indefinite

Power Dissipation (TA ≤ 70°C)

8-Pin MSOP .............................................320mW

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

Storage Temperature (Unbiased) .......-65°C to +150°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.

TC2682/TC2683/TC2684 ELECTRICAL SPECIFICATIONS

Electrical Characteristics: TA = -40°C to +85°C, VIN = +5V, C1 = C2 = 3.3µF (TC2682), C1 = C2 = 1µF(TC2683),

C1 = C2 = 0.33

µF (TC2684) SHDN = GND, Typical values are at TA = +25°C

Symbol

Parameter

Min

Typ

Max

Units

Device

Test Conditions

IDD

Supply Current

—

95

225

700

160

480

1500

µA

TC2682

TC2683

TC2684

VMIN

Minimum Supply Voltage

1.8

——

VAll

RLOAD = 1kΩ

VMAX

Maximum Supply Voltage

——

5.5

V

All

RLOAD = 1kΩ

FOSC

Oscillator Frequency

8.4

24.5

65

12

35

125

15.6

45.5

170

kHz

TC2682

TC2683

TC2684

VEFF

Voltage Conversion Efficiency

95

99

—

%All

RLOAD = ∞

ROUT

Output Resistance

—

120

170

Ω

All

ILOAD = 0.5mA to 10mA (Note 1)

Note

1:

Capacitor contribution is approximately 20% of the output impedance (ESR = 1/ pump frequency x capacitance).

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