TC1306 datasheet(3/16 Pages) MICROCHIP

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DS21527B-page 3

TC1306

TC1306 ELECTRICAL SPECIFICATIONS (CONTINUED)

Electrical Characteristics: VIN =VR +1V, IL =100µA, CL =3.3µF, SHDN1 >VIH, SHDN2 >VIH,TA = 25°C, unless otherwise

noted. Boldface type specifications apply for junction temperature of -40°C to +125°C. Applies to both VOUT1 and VOUT2.

Symbol

Parameter

Min

Typ

Max

Units

Test Conditions

TSD

Thermal Shutdown Die

Temperature

—160

—

°C

∆TSD

Thermal Shutdown Hysteresis

—

°C

Output Noise

—

200

—

√Hz F=10kHz

SHDN Input

VIH

SHDN Input High Threshold

——

%VIN

VIN =2.7V to6.0V

VIL

SHDN Input Low Threshold

—

%VIN

VIN =2.7V to6.0V

SELECT Input

VSELH

SELECT Input HIgh Threshold

——

%VIN

VIN =2.7V to6.0V

VSELL

SELECT Input Low Threshold

—

%VIN

VIN =2.7V to6.0V

RESET Output

VINMIN

Minimum VIN Operating Voltage

1.0

1.2

—

6.0

VTA =0°C to +70°C

TA = -40°C to +125°C

VTH

Reset Threshold

2.59

2.55

2.63

—

2.66

2.70

VTA =+25°C

TA = -40°C to +125°C

Reset Threshold Tempco

—

ppm/°C

VOUT2 to Reset Delay

—

100

—

µsec

VOUT2 =VTH to (VTH –100mV)

Reset Active Time-out Period

140

300

560

msec

VOL

RESET Output Voltage Low

—

0.3

0.4

0.3

VVOUT2 =VTHMIN,ISINK =1.2mA

VOUT2 =VTHMIN,ISINK =3.2mA

VOUT2 >1.0V, ISINK =50µA

VOH

RESET Output Voltage High

0.8 VOUT2

VOUT2 –1.5

—

VVOUT2 >VTHMAX,

ISOURCE =500µA

VOUT2 >VTHMAX,

ISOURCE =800µA

Note 1:

The minimum VIN has to meet two conditions: VIN ≥ 2.7 and VIN =VR +VDROPOUT.

VR is the regulator output voltage setting. For example: VR =2.8V, 3.0V.

Regulation is measured at a constant junction temperature using low duty cycle pulse testing. Load regulation is tested over a load range from

0.1mA to the maximum specified output current. Changes in output voltage due to heating effects are covered by the thermal regulation

specification.

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.

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.

The maximum allowable power dissipation is a function of ambient temperature, the maximum allowable junction temperature and the

thermal resistance from junction-to-air (i.e., TA,TJ, θJA). Exceeding the maximum allowable power dissipation causes the device to initiate

thermal shutdown. Please see Section 5.0 Thermal Considerations section of this data sheet for more details.

TC VOUT =(VOUTMAX –VOUTMIN)x 10

VOUT x ∆T

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