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33887 Datasheet PDF : 28 Pages
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Freescale Semiconductor, Inc.
STATIC ELECTRICAL CHARACTERISTICS (continued)
Characteristics noted under conditions 5.0 V ≤ V+ ≤ 28 V and -40°C ≤ TA ≤ 125°C unless otherwise noted. Typical values noted reflect
the approximate parameter mean at TA = 25°C under nominal conditions unless otherwise noted.
Characteristic
Symbol
Min
Typ
Max
Unit
POWER OUTPUTS (OUT1, OUT2)
Output ON-Resistance (Note 17)
5.0 V ≤ V+ ≤ 28 V, TJ = 25°C
8.0 V ≤ V+ ≤ 28 V, TJ = 150°C
5.0 V ≤ V+ ≤ 8.0 V, TJ = 150°C
RDS(ON)
–
–
–
mΩ
120
–
–
225
–
300
Active Current Limiting Threshold (via Internal Constant OFF-Time PWM) on
ILIM
Low-Side MOSFETs (Note 18)
5.2
6.5
7.8
A
High-Side Short Circuit Detection Threshold
ISCH
11
–
–
A
Low-Side Short Circuit Detection Threshold
ISCL
8.0
–
–
A
Leakage Current (Note 19)
VOUT = V+
VOUT = Ground
IOUT(leak)
–
–
µA
100
200
30
60
Output MOSFET Body Diode Forward Voltage Drop
IOUT = 3.0 A
VF
V
–
–
2.0
Overtemperature Shutdown
Thermal Limit
Hysteresis
°C
TLIM
175
–
225
THYS
10
–
30
HIGH-SIDE CURRENT SENSE FEEDBACK
Feedback Current
IOUT = 0 mA
IOUT = 500 mA
IOUT = 1.5 A
IOUT = 3.0 A
IOUT = 6.0 A
I FB
–
–
600
µA
1.07
1.33
1.68
mA
3.6
4.0
4.62
mA
7.2
8.0
9.24
mA
14.4
16
18.48
mA
FAULT STATUS (Note 20)
Fault Status Leakage Current (Note 21)
VFS = 5.0 V
I FS(leak)
–
µA
–
10
Fault Status SET Voltage (Note 22)
IFS = 300 µA
V FS(LOW)
–
V
–
1.0
Notes
17. Output-ON resistance as measured from output to V+ and ground.
18. Active current limitation applies only for the low-side MOSFETs.
19. Outputs switched OFF with D1 or D2.
20. Fault Status output is an open Drain output requiring a pullup resistor to 5.0 V.
21. Fault Status Leakage Current is measured with Fault Status HIGH and not SET.
22. Fault Status Set Voltage is measured with Fault Status LOW and SET with IFS = 300 µA.
MOTOROLA ANALOG INTEGRATED CIRCUIT DEVICE DATA
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33887
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