TC4949VPA データシートの表示（PDF） - TelCom Semiconductor Inc => Microchip

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TC4949VPA

Multifunction Very Low Dropout Voltage Regulator

TelCom Semiconductor Inc => Microchip 

Multifunction Very Low Dropout Voltage Regulator

TC4949

ELECTRICAL CHARACTERISTICS: (VCC = 14V, -40°C < TJ < 125°C, unless otherwise specified)

Symbol Parameter

Test Conditions

Min

Typ

Max

SENSE

VSOTH

VSOTH,HYS

VSOL

Sense Low Threshold

Sense Threshold Hysteresis

Sense Output Low Voltage

ISOH

Sense Output Leakage

ISI

Sense Input Current

PREREGULATOR

VZ

Preregulator Output Voltage

VSI Decreasing = 1.5V to 1.0V)

VSI ≤ 1.16V, VCC ≥ 3.0V,

RSO = 10kΩ to VOUT

VSO = 5.0V, VSI ≥ 1.5V

IZ = I0µA

1.16

1.23

1.35

20

100

200

–

–

0.4

–

–

1.0

1.0

0.1

1.0

–

6.3

–

PIN DESCRIPTION

Pin

Symbol

1

VCC

2

SIN

3

VZ

4

CT

5

GND

6

RESET

7

SOUT

8

VOUT

Description

Supply Voltage

Input of Sense Comparator

Output of Preregulator

Reset Delay Capacitor

Ground

Output of Reset Comparator

Output of Sense Comparator

Main Regulator Output

Units

V

mV

V

µA

µA

V

TYPICAL CHARACTERISTICS

Figure 1. Output Voltage versus

Junction Temperature

5.04

VCC = 14V

IOUT = 1.0mA

5.02

5.0

4.98

4.96

-40

-20 0 20 40 60 80 100 120

TJ, JUNCTION TEMPERATURE (˚C)

Figure 2. Output Voltage versus

Supply Temperature

6.0

TJ = 25°C

5.0

4.0

RL = 5.0k

3.0

RL = 100Ω

2.0

1.0

0

0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 9.0 10

VCC, SUPPLY VOLTAGE (V)

TC4949-1 1/6/00

3

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