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MC33981BPNA Scheda tecnica(PDF) 7 Page - Freescale Semiconductor, Inc

Il numero della parte MC33981BPNA
Spiegazioni elettronici  Single High-Side Switch (4.0 m??, PWM clock up to 60kHz
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Produttore elettronici  FREESCALE [Freescale Semiconductor, Inc]
Homepage  http://www.freescale.com
Logo FREESCALE - Freescale Semiconductor, Inc

MC33981BPNA Scheda tecnica(HTML) 7 Page - Freescale Semiconductor, Inc

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Analog Integrated Circuit Device Data
Freescale Semiconductor
7
33981
DYNAMIC ELECTRICAL CHARACTERISTICS
STATIC ELECTRICAL CHARACTERISTICS
DYNAMIC ELECTRICAL CHARACTERISTICS
Table 4. Dynamic Electrical Characteristics
Characteristics noted under conditions 6.0 V
≤ V
PWR ≤ 27 V, -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
CONTROL INTERFACE AND POWER OUTPUT TIMING (CBOOT, VPWR)
Charge Blanking Time (CBOOT) (10)
tON
10
25
50
µs
Output Rising Slew Rate
VPWR = 13 V, from 10% to 90% of VOUT, SR Capacitor = 4.7 nF,
RL= 5.0 Ω
SRR
8.0
16
35
V/
µs
Output Falling Slew Rate
VPWR = 13 V, from 90% to 10% of VOUT, SR Capacitor = 4.7 nF,
RL= 5.0 Ω
SRF
8.0
16
35
V/
µs
Output Turn-ON Delay Time (11)
VPWR = 13 V, SR Capacitor = 4.7 nF
tDLYON
200
400
700
ns
Output Turn-OFF Delay Time (12)
VPWR = 13 V, SR Capacitor = 4.7 nF
tDLYOFF
500
1000
1500
ns
Input Switching Frequency (9)
fPWM
20
60
kHz
Output PWM ratio @ 60kHz (13)
RPWM
5.0
95
%
Time to Reset Fault Diagnosis
(over load on high side or external low side)
tRSTDIAG
100
200
400
µs
Output Over Current Detection Time
tOCH
1.0
10
20
µs
Notes
9.
The MC33981 can work down (~100Hz). The fault management reset can not be guaranteed with PWM frequency lower than 5kHz
(INHS=0 during 200us typ)
10.
Values for CBOOT=100nF. Refer to the paragraph entitled Sleep Mode on page 13. Parameter is guaranteed by design and not
production tested.
11.
Turn-ON delay time measured from rising edge of INHS that turns the output ON to VOUT = 0.5 V with RL= 5.0 Ω resistive load.
12.
Turn-OFF delay time measured from falling edge of INHS that turns the output OFF to VOUT = VPWR -0.5 V with RL= 5.0 Ω resistive load.
13.
The ratio is measured at Vout = 50% VPWR without SR capacitor. The device is capable of 100% duty cycle.


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