AN8049 データシートの表示（PDF） - Panasonic Corporation

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AN8049

1.8-volt 3-channel step-up, step-down, and polarity inverting DC-DC converter control IC

Panasonic Corporation 

Voltage Regulators

AN8049SH

I Absolute Maximum Ratings

Parameter

Symbol

Rating

Unit

Supply voltage

VCC

14.2

V

Off pin allowable application voltage VOFF

14.2

V

CTL pin allowable application voltage VCTL

VCC − 0.2

V

Error amplifier input pin

VIN

6

V

allowable application voltage *2

Supply current

ICC



mA

OUT1 and OUT2 pin output

ISO(OUT)

−50

mA

source current

OUT3 pin output current

IO

+50

mA

Power dissipation *1

PD

146

mW

Operating temperature

Topr

−30 to +85

°C

Storage temperature

Tstg

−55 to +125

°C

Note) 1. Do not apply external currents or voltages to any pins not specifically mentioned. For circuit currents, '+' denotes current

flowing into the IC, and '−' denotes current flowing out of the IC.

2. Items other than the storage temperature, operating temperature, and power dissipation are all stipulated for an ambient

temperature Ta = 25°C.

3. *1: Ta = 85°C. See the "Application Notes" for details on the relationship between IC power dissipation and the ambient

temperature.

*2: When VCC < 6 V, the following condition must hold: VIN−1 = VIN−2 = VCC − 0.2 V.

I Recommended Operating Range

Parameter

Symbol

Range

Unit

Off pin application voltage

VOFF

0 to 14

V

OUT1 and OUT2 pin output source current

ISO(OUT)

−40 to −1

mA

OUT3 pin output current

IO

40 (max.)

Timing resistance

RT

3 to 33

kΩ

Timing capacitance

CT

100 to 10 000

pF

Oscillator frequency

fOUT

20 to 1 000

kHz

Short-circuit protection time-constant setting capacitance CSCP

1 000 (min.)

pF

Output current setting resistance

RB

750 to 15 000

Ω

I Electrical Characteristics at VCC = 2.4 V, CREF = 0.1 µF, Ta = 25°C

Parameter

Symbol

Conditions

Min Typ Max Unit

Reference voltage block

Reference voltage

Line regulation with input fluctuation

Load regulation

U.V.L.O. block

VREF

Line

Load

IREF = − 0.1 mA

VCC = 1.8 V to 14 V

IREF = − 0.1 mA to −1 mA

1.247 1.26 1.273 V

 2 20 mV

−20 −3  mV

Circuit operation start voltage

VUON

1.59 1.67 1.75 V

3

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