TC7660H datasheet(2/6 Pages) TELCOM

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TELCOM SEMICONDUCTOR, INC.

TC7660H

HIGH FREQUENCY 7660 DC-TO-DC

VOLTAGE CONVERTER

ABSOLUTE MAXIMUM RATINGS*

Supply Voltage ...................................................... +10.5V

LV 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

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

SOIC ............................................................... 470mW

Plastic DIP ...................................................... 730mW

Operating Temperature Range

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

°C to +70°C

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

°C to +85°C

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

°C to +150°C

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 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 operation sections of the specifications is not implied.

Exposure to absolute maximum rating conditions for extended periods

may affect device reliability.

ELECTRICAL CHARACTERISTICS: Over Operating Temperature Range with V+= 5V, CI = C2 = 1µF,COSC = 0,

Test Circuit (Figure 1), unless otherwise indicated.

Symbol

Parameter

Test Conditions

Min

Typ

Max

Unit

I+

Supply Current

RL =

∞

—

0.46

1.0

Supply Voltage Range, High

Min

≤ TA ≤ Max,

—

RL = 5kΩ, LV Open

Supply Voltage Range, Low

Min

≤ TA ≤ Max,

1.5

—

3.5

RL = 5kΩ, LV to GND

ROUT

Output Source Resistance

IOUT = 20mA, TA = 25°C

—

Ω

IOUT = 20mA, 0°C ≤ TA ≤ +70°C—

—

Ω

(C Device)

IOUT = 20mA, – 40°C ≤ TA ≤ +85°C

—

110

Ω

(E Device)

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

—

150

250

Ω

°C ≤ TA ≤ +70°C

FOSC

Oscillator Frequency

—

120

—

kHz

PEFF

Power Efficiency

IOUT = 10mA, Min ≤ TA ≤ Max

—

VEFF

Voltage Efficiency

RL =

∞

99.7

—

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 TC7660H.

2. Derate linearly above 50

°C by 5.5 mW/°C.

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