ML4435 Просмотр технического описания (PDF) - Micro Linear Corporation
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ML4435 Datasheet PDF : 14 Pages
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PRELIMINARY
ML4435
ELECTRICAL TABLES
Unless otherwise specified, Ta= Operating Temperature Range, VCC= 12V +/- 10%, RT= 50k
SYMBOL
PARAMETER
CONDITIONS
REFERENCE
RT
VCO
RVCO Lower Range2
Upper Range2
CVCO Lower Threshold2
Upper Threshold2
Coast Enable Threshold2
Back EMF Blanking Threshold2
SPEED FEEDBACK
Output Range2
V Minimum Frequency2
V Speed Feedback
TACH Out Disabled Threshold2
TACH Out = Hi
I Back EMF Sampler2
BACK EMF SENSING
V Speed Feedback = 3.3V
TACH
Feed Back Input Range2
FB A, FB B, and FB C
TACH Out Low
ISINK = 100µA
TACH Out High
SPEED ERROR AMP
ISOURCE =100µA
SPEED SET Range2
I SPEED COMP
V SPEED COMP = 5.1V
SPEED COMP Output Lower Clamp2
I = ±45µA
SPEED COMP Output Upper Clamp2
OSCILLATOR
I = ±45µA
PWM Frequency
N1, N2, N3
Duty Cycle2
CURRENT SENSE
N1, N2, N3
V SOFT START
ISENSE Threshold2
OUTPUTS (N1, N2, N3, P1, P2, AND P3)
Output Low
ISINK = 20mA
Output High (VCC-VOUT)
UNDER-VOLTAGE LOCKOUT
ISOURCE = 20mA
Start Threshold
Under Voltage Threshold
SUPPLY
ICC Supply Current
Note 1: Limits are guaranteed by 100% testing, sampling, or correlation with worst case test conditions
Note 2 Guaranteed by design, not tested
MIN
5.8
0
0
4.3
0
17
0
0.48
0
0
8.7
8.2
TYP
6
0.2
6
2
3.75
1.5
2.875
0.9
0.97
+/-80
0.2
4.8
+/-45
2.15
8.2
25
0.58
0.58
0.5
0.5
9.2
8.7
15
MAX UNITS
6.2
V
V
V
V
V
V
V
6.7
V
V
V
µA
VCC
V
0.4
V
V
6
V
µA
V
V
33
kHz
100
%
0.68
V
V
1
V
1
V
9.7
V
9.2
V
mA
12
PRELIMINARY DATASHEET May, 2000
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