3

FN7415.2

February 22, 2006

IN, CTL to AGND . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to +6.5V

PGND, BGND to AGND. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±0.3V

LX to PGND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to +24V

SUP to AGND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to +18V

DRVP, SRC to AGND . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to +36V

POS1, NEG1, OUT1, POS2, NEG2, OUT2, POS3, OUT3,

LX Maximum Continuous RMS Output Current. . . . . . . . . . . . . 1.6A

OUT1, OUT2, OUT3, OUT4, OUT5

Maximum Continuous Output Current . . . . . . . . . . . . . . . . . . ±75mA

Storage Temperature . . . . . . . . . . . . . . . . . . . . . . . .-65°C to +150°C

Maximum Continuous Junction Temperature . . . . . . . . . . . . +125°C

Power Dissipation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . See Curves

Operating Ambient Temperature . . . . . . . . . . . . . . . .-40°C to +85°C

CAUTION: Stresses above those listed in “Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress only rating and operation of the

device at these or any other conditions above those indicated in the operational sections of this specification is not implied.

IMPORTANT NOTE: All parameters having Min/Max specifications are guaranteed. Typical values are for information purposes only. Unless otherwise noted, all tests

Electrical Specifications

Unless Otherwise Specified.

PARAMETER

DESCRIPTION

CONDITIONS

MIN

TYP

MAX

UNIT

SUPPLY

Input Supply Range

2.6

5.5

V

Undervoltage Lockout Threshold

2.4

2.5

2.6

V

Undervoltage Lockout Threshold

2.2

2.3

2.4

V

Quiescent Current

LX not switching

2.5

mA

Quiescent Current - Switching

LX switching

5

10

mA

Fault Delay Time

52

ms

Reference Voltage

1.19

1.215

1.235

V

1.187

1.215

1.238

V

SHUTDN

Thermal Shutdown Temperature

140

°C

MAIN BOOST REGULATOR

Output Voltage Range

(Note 1)

15%

18

V

Oscillator Frequency

1050

1200

1350

kHz

Maximum Duty Cycle

82

85

%

Boost Feedback Voltage

1.192

1.205

1.218

V

1.188

1.205

1.222

V

FB Fault Trip Level

Falling edge

0.85

0.925

1.020

V

Load Regulation

0.1

%

Line Regulation

0.08

%/V

Input Bias Current

500

nA

gmV

FB Transconductance

dI = ±2.5µA at COMP, FB = COMP

160

µA/V

LX On Resistance

160

m

Ω

LX Leakage Current

0.02

40

µA

LX Current Limit

Duty cycle = 65% (Note 1)

3.0

A

Soft-Start Period

2

ms

EL7640, EL7641, EL7642