MC33886 Motorola, MC33886 Datasheet - Page 9

• Manufacturer Part Number: MC33886
• Description: 5.0 A H BRIDGE
• Manufacturer: Motorola

MOTOROLA ANALOG INTEGRATED CIRCUIT DEVICE DATA
8.0
6.5
[1]
[0]
[1]
[0]
[1]
[0]
[1]
[0]
0
8.0
6.5
Tri-stated
Outputs
Tristated
Outputs
IN1 IN2
IN1 IN2
Freescale Semiconductor, Inc.
For More Information On This Product,
Diode Reverse Recovery Spikes
Figure 6. Active Current Limiting Versus Time
(per Input Control Condition)
Load Capacitance and/or
(per Input Control Condition)
(See Figure 7)
Figure 7. Active Current Limiting Detail
(See Figure 7)
Outputs Operational
(See Figure 6)
IN2 or IN1
Outputs Operational
IN1
IN2
Recovery Spikes
IN1 or IN2
Diode Reverse
Current
Limiting
Limiting
Active
Current
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PWM
OR
OR
IN2
IN1
t
TIME
a
TIME
Tri-stated
IN1
IN2
Outputs
Outputs
Tristated
IN2 or IN1
IN1 or IN2
Latch-Off Prevented During t
Hard Output
Hard Short Detect
Short Latch-OFF
OR
OR
t
b
Hard Short Detect and Latch-OFF
Overcurrent Minimum Threshold
Hard Short Detect and Latch-Off
IN2
I
IN1
Short Circuit Detect Threshold
SCL
t
t
t
t
a
b
a
b
Short Circuit Detect Threshold
Typ. Short Ckt. Detect Threshold
Typ. Current Limit Threshold
I
= Tristate Output OFF Time
= Current Limit Blank Time
for Low-Side FETs
Typical Current Limiting Threshold
SCL
= Output Latch-OFF Time
= Output Blanking Time
Short Circuit Detect Threshold
Typical PWM Load
Current Limiting
Waveform
Typical Current
Limiting Waveform
b
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