TC1044S View Datasheet(PDF) - Microchip Technology

Part Name

Description

Manufacturer

TC1044S

Charge Pump DC-TO-DC Voltage Converter

Microchip Technology 

Charge Pump DC-TO-DC Voltage Converter

TC1044S

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) ...................... 20µA for V+ > 3.5V

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

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

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

*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.

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 = ∞

0°C < TA < +70°C

– 40°C < TA < +85°C

– 55°C < TA < +125°C

I+

Supply Current

(Boost Pin = V+)

0°C < TA < +70°C

– 40°C < TA < +85°C

– 55°C < TA < +125°C

VH+ 2

Supply Voltage Range, High

Min ≤ TA ≤ Max,

RL = 10 kΩ, LV Open

VL+2

Supply Voltage Range, Low

Min ≤ TA ≤ Max,

RL = 10 kΩ, LV to GND

—

80

160 µA

—

—

180

—

—

180

—

—

200

—

—

300 µA

—

—

350

—

—

400

3

—

12 V

1.5

—

3.5 V

ROUT

Output Source Resistance

IOUT = 20mA

IOUT = 20mA, 0°C ≤ TA ≤ +70°C

IOUT = 20mA, –40°C ≤ TA ≤ +85°C

IOUT = 20mA, –55°C ≤ TA ≤ +125°C

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

0°C ≤ TA ≤ +70°C

– 55°C ≤ TA ≤ +125°C

—

60

100 Ω

—

70

120

—

70

120

—

105 150

—

—

250 Ω

—

—

400

FOSC

Oscillator Frequency

Pin 7 open; Pin 1 open or GND

Boost Pin = V+

—

10

— kHz

—

45

—

PEFF

Power Efficiency

RL = 5 kΩ; Boost Pin Open

TMIN < TA < TMAX; Boost Pin Open

Boost Pin = V+

96

98

—%

95

97

—

—

88

—

VOUT EFF

ZOSC

Voltage Conversion Efficiency

Oscillator Impedance

RL = ∞

V+ = 2V

V+ = 5V

99 99.9 — %

—

1

— MΩ

—

100

— kΩ

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.

TC1044S-12 9/16/96

2

© 2001 Microchip Technology Inc. DS21348A

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