PRELIMINARY DATASHEET

May, 2000

12

PRELIMINARY

ML4435

Unless otherwise specified, Ta= Operating Temperature Range, VCC= 12V +/- 10%, RT= 50k

SYMBOL

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

REFERENCE

RT

5.8

6

6.2

V

VCO

RVCO

0.2

V

6

V

CVCO

2

V

3.75

V

1.5

V

2.875

V

SPEED FEEDBACK

0

6.7

V

V Speed Feedback

0.9

V

TACH Out = Hi

0.97

V

V Speed Feedback = 3.3V

+/-80

µA

BACK EMF SENSING

FB A, FB B, and FB C

0

VCC

V

TACH

TACH Out Low

ISINK = 100µA

0.2

0.4

V

TACH Out High

ISOURCE =100µA

4.3

4.8

V

SPEED ERROR AMP

0

6

V

I SPEED COMP

V SPEED COMP = 5.1V

+/-45

µA

I = ±45µA

2.15

V

I = ±45µA

8.2

V

OSCILLATOR

PWM Frequency

N1, N2, N3

17

25

33

kHz

N1, N2, N3

0

100

%

CURRENT SENSE

V SOFT START

0.48

0.58

0.68

V

ISENSE

0.58

V

OUTPUTS (N1, N2, N3, P1, P2, AND P3)

Output Low

ISINK = 20mA

0

0.5

1

V

Output High (VCC-VOUT)

ISOURCE = 20mA

0

0.5

1

V

UNDER-VOLTAGE LOCKOUT

Start Threshold

8.7

9.2

9.7

V

Under Voltage Threshold

8.2

8.7

9.2

V

SUPPLY

ICC

Supply Current

15

mA

Note 1:

Limits are guaranteed by 100% testing, sampling, or correlation with worst case test conditions

Note 2

Guaranteed by design, not tested

ELECTRICAL TABLES