TC1044SCPA datasheet(2/8 Pages) TELCOM

Numer części	TC1044SCPA

Szczegółowy opis	CHARGE PUMP DC-TO-DC VOLTAGE CONVERTER

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Producent	TELCOM [TelCom Semiconductor, Inc]

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TELCOM SEMICONDUCTOR, INC.

Package Power Dissipation (TA ≤ 70°C) (Note 2)

8-Pin CerDIP .................................................. 800mW

8-Pin Plastic DIP ............................................. 730mW

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

Operating Temperature Range

C Suffix .................................................. 0

°C to +70°C

I Suffix ............................................... – 25

°C to +85°C

E Suffix ............................................. – 40

°C to +85°C

M Suffix ........................................... – 55

°C to +125°C

Storage Temperature Range ................ – 65

°C to +150°C

ELECTRICAL CHARACTERISTICS: TA = +25°C, V+ = 5V, COSC = 0, Test Circuit (Figure 1), unless otherwise

indicated.

Symbol

Parameter

Test Conditions

Min

Typ

Max

Unit

I+

Supply Current

RL =

∞

—

80

160

µA

0

°C < TA < +70°C

—

180

– 40

°C < TA < +85°C

—

180

– 55

°C < TA < +125°C

—

200

I+

Supply Current

0

°C < TA < +70°C

—

300

µA

(Boost Pin = V+)– 40

°C < TA < +85°C

—

350

– 55

°C < TA < +125°C

—

400

V

+

H2

Supply Voltage Range, High

Min

≤ TA ≤ Max,

3

—

12

V

RL = 10 kΩ, LV Open

V

+

L2

Supply Voltage Range, Low

Min

≤ TA ≤ Max,

1.5

—

3.5

V

RL = 10 kΩ, LV to GND

ROUT

Output Source Resistance

IOUT = 20mA

—

60

100

Ω

IOUT = 20mA, 0°C ≤ TA ≤ +70°C

—

70

120

IOUT = 20mA, –40°C ≤ TA ≤ +85°C

—

70

120

IOUT = 20mA, –55°C ≤ TA ≤ +125°C

—

105

150

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

0

°C ≤ TA ≤ +70°C

—

250

Ω

– 55

°C ≤ TA ≤ +125°C

—

400

FOSC

Oscillator Frequency

Pin 7 open; Pin 1 open or GND

—

10

—

kHz

Boost Pin = V+

—45—

PEFF

Power Efficiency

RL = 5 kΩ; Boost Pin Open

96

98

—

%

TMIN < TA < TMAX; Boost Pin Open

95

97

—

Boost Pin = V+

—88—

VOUT EFF

Voltage Conversion Efficiency

RL =

∞

99

99.9

—

%

ZOSC

Oscillator Impedance

V+ = 2V

—

1

—

M

Ω

V+ = 5V

—

100

—

k

Ω

NOTES: 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 TC1044S.

2. Derate linearly above 50

°C by 5.5mW/°C.

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 (Note 1) ...................... 20

µA for V+ > 3.5V

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

Lead Temperature (Soldering, 10 sec) ................. +300

°C

*Static-sensitive device. Unused devices must be stored in conductive material. Protect devices from static discharge and static fields. Stresses above those

listed under "Absolute Maximum Ratings" may cause permanent damage to the device. These are stress ratings only and functional operation of the device

at these or any other conditions above those indicated in the operation sections of the specifications is not implied. Exposure to absolute maximum rating

conditions for extended periods may affect device reliability.

TC1044S

CHARGE PUMP DC-TO-DC

VOLTAGE CONVERTER

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