ML4425CS Ver la hoja de datos (PDF) - Fairchild Semiconductor
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ML4425CS Datasheet PDF : 16 Pages
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PRODUCT SPECIFICATION
ML4425
Electrical Characteristics (continued)
Unless otherwise specified, VDD = 12V ± 10%, RSENSE = 1Ω, CVCO = 10nF, CIOS = 100pF, RREF = 137kΩ,
TA = Operating Temperature Range (Notes 1, 2).
Symbol
Parameter
Conditions
Logic Outputs (VCO/TACH, UV FAULT) (Note 3)
VCO/TACH Output High Voltage IOUT = –100µA
VCO/TACH Output Low Voltage IOUT = 400µA
UV FAULT Output High Voltage IOUT = –10µA
C Suffix
I Suffix
Min.
2.2
3.4
3.2
Typ.
4.5
UV FAULT Output Low Voltage IOUT = 400µA
Back-EMF Sampler
SPEED FB Align Mode Voltage
125
SPEED FB Ramp Mode Current
C Suffix 500
I Suffix 500
SPEED FB Run Mode Current State A, CRT = 5V,
VPHB = VDD/3
C Suffix 30
I Suffix
27
State A, CRT = 5V, VPHB = VDD/2
–15
State A, CRT = 5V,
VPHB = 2↔VDD/3
C Suffix –90
I Suffix –90
Output Drivers
High Side Driver Output Low
Current
High Side Driver Output High
Voltage
VHX = 2V
IHX = –10µA
0.5
VCC – 1.3
Low Side Driver Output Low
ILX = 1mA
0.2
Voltage
Low Side Driver Output High
Voltage
Phase C Cross-conduction
Lockout Threshold
V(ISENSE) = 0V
C Suffix VDD – 2.2
I Suffix VDD – 2.9
VDD – 3.0
Supply
IDD
VDD Current
UVLO Threshold
32
C Suffix 8.8
9.5
I Suffix
8.6
UVLO Hysteresis
150
Notes:
1. Limits are guaranteed by 100% testing, sampling, or correlation with worst case test conditions.
2. For explanation of states, see Figure 4 and Table 1.
3. The BRAKE and UV FAULT pins each have an internal 4kΩ resistor to the internal reference.
Max.
0.6
5.4
5.6
0.6
250
720
750
90
90
15
–30
–27
1.2
0.7
50
10.2
10.3
Units
V
V
V
V
V
mV
nA
nA
µA
µA
µA
µA
µA
mA
V
V
V
V
V
mA
V
V
mV
REV. 1.0.2 7/2/01
5
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