SI9979 Datasheet, PDF (2/7 Pages) Vishay Siliconix – 3-Phase Brushless DC Motor Controller

Si9979
Vishay Siliconix
ABSOLUTE MAXIMUM RATINGS
Voltage on Pin 42 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50 V
Voltage on Pins 1-4, 10, 11 . . . . . . . . . . . . . . . .-0.3 V to V_DD + 0.3 V
Voltage on Pins 5-9 . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3 V to 5.5 V
Voltage on Pins 26, 28, 30, 32, 34, 36 . . . . . . . . . . . . . . . . . . . . . 60 V
Voltage on Pins 27, 31, 35 . . . . . . . . . . . . . . . . . . . . . . . . . . -2 to 50 V
Operating Temperature
C Suffix . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0 to 70°C
D Suffix . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -40 to 85°C
Storage Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . -65 to 150°C
Junction Temperature (T_J) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 150°C
Power Dissipation (P_D)
C Suffix . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.70 W
D Suffix . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.55 W
RECOMMENDED OPERATING RANGE
V+ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +20 to 40 V_DC
R_T. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 kΩ Min
SPECIFICATIONS
Parameter
Symbol
Power
Supply Voltage Range
V+
Logic Voltage
V_DD
Supply Current
I+
Logic Current
Internal Reference^c
I_DD
V_REF
Commutation Inputs (IN_A, IN_B, IN_C, 60/120)
High-State
V_IH
Low-State
V_IL
High-State Input Current
I_IH
Low-State Input Current
I_IL
Logic Inputs (F/R, EN, QS, PWM, BRK)
High-State
V_IH
Low-State
V_IL
High-State Input Current
I_IH
Low-State Input Current
I_IL
Outputs
Low-Side Gate Drive, High State
Low-Side Gate Drive, Low State
V_GBH
V_GBL
High-Side Gate Drive, High State
V_GTH
High-Side Gate Drive, Low State
Capacitor Voltage^d
Low-Side Switching, Rise Time
Low-Side Switching, Fall Time
High-Side Switching, Rise Time
High-Side Switching, Fall Time
Break-Before-Make Time
TACH Output/FAULT Output
TACH Output Pulsewidth
V_GTL
V_CAP
t_rL
t_fL
t_rH
t_fH
t_BLH
t_BHL
V_OL
t_T
Test Conditions
Unless Otherwise Specified
V+ = 20 to 40 V, I_DD = 0 mA
Limits
-40°C to 85°C
Min^a
Typ^b
Max^a
Units
-20 mA ≤ I_DD ≤ 0 mA
20
40
V
14.5
16
17.5
4.5
mA
-20
4.2
V
4.0
V_IH = V_DD
V_IL = 0 V
2.0
V_IH = 5.5 V
V_IL = 0 V
14
T_A = 0 to 70°C
T_A = -40 to 85°C
C Suffix
D Suffix
V+ = 40 V
Risetime = 1 to 10 V
Falltime = 10 to 1 V
C_L = 600 pF
I_OL = 1.0 mA
300
V
1.0
10
µA
-50
V
0.8
10
µA
-125
16
17.5
0.1
16
18
V
16
20
0.1
55
70
25
100
ns
40
100
300
0.15
0.4
V
600
ns
S-60752-Rev. D, 05-Apr-99
2
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