2

TC7660H

HIGH FREQUENCY 7660 DC-TO-DC

VOLTAGE CONVERTER

TC7660H-2 10/1/96

© 2001 Microchip Technology Inc.

DS21466A

ABSOLUTE MAXIMUM RATINGS*

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

LV and OSC Inputs

Current Into LV (Note 1) ..................... 20

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.

Test Circuit (Figure 1), unless otherwise indicated.

Symbol

Parameter

Test Conditions

Min

Typ

Max

Unit

Supply Current

∞

—

0.46

1.0

mA

H

Supply Voltage Range, High

Min

3

—

10

V

L

Supply Voltage Range, Low

Min

1.5

—

3.5

V

Output Source Resistance

—

55

80

Ω

—

95

Ω

(C Device)

—

—

110

Ω

(E Device)

—

150

250

Ω

0

Oscillator Frequency

—

120

—

kHz

Power Efficiency

81

85

—

%

Voltage Efficiency

∞

99

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 5.5mW/°C.