mc33988 Freescale Semiconductor, Inc, mc33988 Datasheet - Page 2

• Manufacturer Part Number: mc33988
• Description: Dual Intelligent High-current Self-protected Silicon High Side Switch
• Manufacturer: Freescale Semiconductor, Inc

2
33988
INTERNAL BLOCK DIAGRAM
IN[0:1]
WAKE
SCLK
RST
FSI
SO
CS
FS
SI
I
DWN
I
UP
3.0 MHz
310ms–2500ms
VDD
Programmable
SPI
Watchdog
R
DWN
Figure 2. 33988 Simplified Internal Block Diagram
Logic
INTERNAL BLOCK DIAGRAM
Regulator
Internal
V
current Low Detection
IC
Over-temperature
Programmable
Selectable Over-
0ms –525ms
0.15ms–155ms
Switch Delay
I
Blanking Time
UP
Detection
V
GND
IC
Selectable Over-current
High Detection
50A or 37.5A
Selectable Over-current
Rate Gate Drive
Selectable Slew
Low Detection
3.75A –12.5A
Open Load
Over-voltage
Detection
Protection
Analog Integrated Circuit Device Data
1/10250 or 1/20500
Output Current
Selectable
Recopy
Freescale Semiconductor
CSNS
VPWR
HS1
HS0
HS0
HS1