MC34921 Datasheet, PDF (10/36 Pages) List of Unclassifed Manufacturers – Configurable Motor Driver IC with Power Supplies

STATIC ELECTRICAL CHARACTERISTICS
Table 3. Static Electrical Characteristics (continued)
Characteristics noted under conditions 16 V ≤ B+ ≤ 34 V, 0°C ≤ T_A ≤ 70°C, and 0°C ≤ T_J ≤ 100°C unless otherwise noted.
Typical values noted reflect the approximate parameter means at T_A = 25°C under nominal conditions unless otherwise noted.
Characteristic
Symbol
Min
Typ
Max
Unit
Motor Drivers in DC Mode (cont)
Output MOSFET Leakage Current
V_GS = 0.0 V, V_O = 0.0 V or 20 V
Current Limit Maximum Duty Cycle⁽⁹⁾
Current Limit Pulse Width⁽⁹⁾
Motor Driver C in Step Mode
I _DSS
µA
–
0.1
± 40
IDC_LIMIT
1.0
2.0
4.0
%
I _LIMITPW
0.5
1.5
6.0
µs
Switch Voltage Drop, Output to Ground
I_STEP = 0.375 A, GND to Output
Step Motor Current Limit
B+ = 20 V
Voltage at Which Internal Clamp Activates
I_DSS = 1.0 mA, B+ = 20 V
Tested Maximum High-Voltage Leakage Current
V_S = V_CLAMP +4.0
Any Step Driver Output Leakage Current to Ground
B+ = 20 V, V_S = 20 V
Current Limit Maximum Duty Cycle
Current Limit Pulse Width
V_b Charge Pump
Boost Voltage
I_B = 0.5 mA
V_SDROP
–
V
–
1.5
I _STEP(LIMIT)
A
1.0
–
2.0
V_CLAMP
V
44
51
59
I _BREAKDOWN
µA
–
0.5
40
I _LEAKAGE
µA
–
0.1
40
td _ILIMIT
5.0
11
15
%
I _LIMITPW
5
10
20
µs
V_b
V
B⁺+10 B⁺+11.5 B⁺ +15
External N-FET Gate Drive Output
GATEOUT High Output
I_OH = 4.0 mA
I_OH = 200 µA
GATEOUT Low Output
I_OL = -200 µA
V_OH2
V
V_b - 6.0 V_b - 2.5
V_b
V_b - 0.3
V_b - .1
V_b
V_OL
V
–
0.1
0.3
Notes
9. Motor driver A, B, C Top Side only. For C Bottom Side, see Motor Driver C in Step Mode: Current Limit Maximum Duty Cycle and Current
Limit Pulse Width
34921
10
Analog Integrated Circuit Device Data
Freescale Semiconductor