4-38

TELCOM SEMICONDUCTOR, INC.

HIGH CURRENT CHARGE PUMP

DC -TO-DC CONVERTER

TC962

Symbol

Parameter

Test Conditions

Min

Typ

Max

Unit

Supply Voltage

3

18

V

Supply Current

———

—

510

700

µA

0

≤ T

560

µA

–55

≤ T

650

µA

190

µA

0

≤ T

210

µA

–55

≤ T

210

µA

Output Source

—

32

37

Ω

Resistance

35

40

Ω

—

50

Ω

Oscillator Frequency

Pin 6 Open

—

12

—

kHz

Pin 6 GND

24

kHz

Power Efficiency

93

97

—

%

Voltage Efficiency

99

99.9

—

%

Over Temperature Range

96

—

%

Zener Voltage

6.0

6.2

6.4

V

Zener Impedance

—

12

Ω

ABSOLUTE MAXIMUM RATINGS*

Current Into Any Pin ................................................. 10mA

ESD Protection .....................................................

±2000V

Output Short Circuit ................. Continuous (at 5.5V Input)

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

°C to +150°C

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

°C

Operating Temperature Range

CPA, COE ............................................. 0

°C to +70°C

IJA .................................................... – 25

°C to +85°C

EPA .................................................. – 40

°C to +85°C

MJA ................................................ – 55

°C to +125°C

Pin 1, which is used as a test pin on the 7662, is a voltage

reference zener on the TC962. This zener (6.4V at 5 mA) has

a dynamic impedance of 12

Ω and is intended for use where

the TC962 is supplying current to external regulator circuitry

and a reference is needed for the regulator circuit. (See

applications section.)

The TC962 is compatible with the LTC1044, SI7661,

and ICL7662. It should be used in designs that require

greater power and/or less input to output voltage drop. It

offers superior performance over the ICL7660S.

SOIC ............................................................... 760mW

PDIP ............................................................... 730mW

CerDIP ............................................................ 800mW

Package Thermal Resistance

*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 perma-

nent 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 operational sections of the specifications is not implied.

Exposure to Absolute Maximum Rating Conditions for extended periods

may affect device reliability.