TC7660SCOA datasheet(3/24 Pages) MICROCHIP

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DS20001467C-page 3

TC7660S

1.0

ELECTRICAL

CHARACTERISTICS

Absolute Maximum Ratings†

Supply Voltage ................................................................+13V

LV, Boost, and OSC Inputs Voltage: (Note 1)

...................................-0.3V to (V+ + 0.3V) for V+ < 5.5V

......................... (V+ – 5.5V) to (V+ + 0.3V) for V+ > 5.5V

Current into LV ......................................... 20 µA for V+ > 3.5V

Output Short Duration (VSUPPLY  5.5V)...............Continuous

Package Power Dissipation: (TA  +70°C) (Note 2)

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

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

Lead Temperature (Soldering, 10s) .... ....................... +300°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

the

operational

sections

this

specification is not intended. Exposure to maximum

rating conditions for extended periods may affect

device reliability.

Note 1:

Connecting any input terminal to

voltages greater than V+ or less than

GND may cause destructive latch-up. It

is recommended that no inputs from

sources

operating

from

external

supplies be applied prior to “power up” of

the TC7660S.

Derate

linearly

above

+50°C

5.5 mW/°C.

ELECTRICAL SPECIFICATIONS

Electrical Characteristics:

Unless otherwise noted, specifications measured over operating temperature range with

V+ = 5V, COSC = 0, refer to test circuit in Figure 4-1.

Parameters

Sym.

Min.

Typ.

Max.

Units

Conditions

Supply Current

(Boost pin OPEN or GND)

I+

—80

160

µA

RL = 

——

180

0°C

 TA  +70°C

—

180

-40°C

 TA  +85°C

—

200

-55°C

 TA  +125°C

Supply Current

(Boost pin = V+)

I+

——

300

µA

0°C

 TA  +70°C

—

350

-40°C

 TA  +85°C

—

400

-55°C

 TA  +125°C

Supply Voltage Range,

High

V+H

3.0

—

Min.

TAMax, RL = 10 k, LV Open

Supply Voltage Range, Low

V+L

1.5

—

3.5

Min.

TAMax, RL = 10 k, LV to GND

Output Source Resistance

ROUT

—60

100



IOUT = 20 mA

—70

120

IOUT = 20 mA, 0°C  TA  +70°C

—70

120

IOUT = 20 mA, -40°C  TA  +85°C

—

105

150

IOUT = 20 mA, -55°C  TA  +125°C

——

250

V+ = 2V, IOUT = 3 mA, LV to GND

0°C

 TA  +70°C

——

400

V+ = 2V, IOUT = 3 mA, LV to GND

-55°C

 TA  +125°C

Oscillator Frequency

fOSC

—

kHz

Pin 7 open, Pin 1 open or GND

Boost Pin = V+

Power Efficiency

PEFF

—

RL = 5 kBoost Pin Open

—

TMIN  TA  TMAX; Boost Pin Open

—

Boost Pin = V+

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