TC1300 datasheet(2/16 Pages) MICROCHIP

2 / 16 page

TC1300

DS21385C-page 2

 2002 Microchip Technology Inc.

1.0

ELECTRICAL

CHARACTERISTICS

Absolute Maximum Ratings*

Input Voltage ....................................................................6.5V

Output Voltage ................................. (VSS - 0.3) to (VIN + 0.3)

Power Dissipation ......................... Internally Limited (Note 6)

Operating Junction Temperature, T

J ....... – 40°C < T

J< 150°C

Maximum Junction Temperature, Tj .............................. 150°C

Storage Temperature .................................. – 65°C to +150°C

Maximum Voltage on Any Pin ............. (VSS-0.3) to (VIN+0.3)

*Notice: Stresses above those listed under “maximum rat-

ings” 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

operational listings of this specification is not implied. Expo-

sure to maximum rating conditions for extended periods may

affect device reliability.

PIN DESCRIPTIONS

Description

RESET

RESET output remains low while VDET is

below the reset voltage threshold and for

300 msec after VDET rises above reset thesh-

old.

VOUT

Regulated Voltage Output

GND

Ground Terminal

Bypass

Reference Bypass Input. Connecting an

optional 470 pF to this input further reduces

output noise.

SHDN

Shutdown Control Input. The regulator is fully

enabled when a logic high is applied to this

input. The regulator enters shutdown when a

logic low is applied to this input. During shut-

down, regulator output voltage falls to zero,

RESET output remains valid and supply cur-

rent is reduced to 30 µA (typ.).

No connect

VIN

Power Supply Input

VDET

Detected Input Voltage. VDET and VIN can be

connected together.

ELECTRICAL CHARACTERISTICS

VIN = VOUT + 1V, IL = 0.1 mA, CL = 3.3 µF, SHDN > VIH, TA = 25°C, unless otherwise noted. BOLDFACE type specifications apply

for junction temperature (Note 8) of -40°C to +125°C.

Parameters

Sym

Min

Typ

Max

Units

Conditions

Input Operating Voltage

VIN

2.7

—

6.0

Note 7

Maximum Output Current

IOUTMAX

300

——

Output Voltage

VOUT

—

VR - 2.5%

VR ± 0.5%

—

VR + 2.5%

Note 1

VOUT Temperature Coefficient

∆VOUT/∆T—

—ppm/°C Note 2

Line Regulation

∆VOUT/∆VIN

—0.02

0.35

%(VR + 1V) < VIN < 6V

Load Regulation

∆VOUT/VOUT

—0.5

2.0

%IL = 0.1 mA to IOUTMAX, Note 3

Note 1: VR is the regulator output voltage setting.

3: Regulation is measured at a constant junction temperature using low duty cycle pulse testing. Load regulation is tested

over a load range from 0.1 mA to the maximum specified output current. Changes in output voltage due to heating

effects are covered by the thermal regulation specification.

4: Dropout voltage is defined as the input to output differential at which the output voltage drops 2% below its nominal value

measured at a 1V differential.

5: Thermal Regulation is defined as the change in output voltage at a time t after a change in power dissipation is applied,

excluding load or line regulation effects. Specifications are for a current pulse equal to ILMAX at VIN = 6V for t = 10 msec.

6: The maximum allowable power dissipation is a function of ambient temperature, the maximum allowable junction tem-

perature and the thermal resistance from junction-to-air (i.e. TA, TJ, θJA). Exceeding the maximum allowable power dissi-

pation causes the device to initiate thermal shutdown. Please see Section 4.0, “Thermal Considerations”, of this data

sheet for more details.

7: The minimum VIN has to meet two conditions: VIN ≥ 2.7V and VIN ≥ (VR + VDROPOUT).

8: The junction temperature of the device is approximated by soaking the device under test at an ambient temperature

equal to the desired junction temperature. The test time is small enough such that the rise in the junction temperature

over the ambient temperature is not significant.

TCVOUT

VOUTMAX VOUTMIN

–

() 10

VOUT

∆

--------------------------------------------------------------------------------------

TC1300 датащи(PDF) 2 Page - Microchip Technology

TC1300 датащи(HTML) 2 Page - Microchip Technology

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

датащи скачать

ссылки URL