AMIS30511 Просмотр технического описания (PDF) - ON Semiconductor
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AMIS30511 Datasheet PDF : 28 Pages
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AMIS−30511
Table 5. AC Parameters (The AC parameters are given for VBB and temperature in their operating ranges.)
Symbol Pin(s)
Parameter
Remark/Test Conditions
Min. Typ.
Internal Oscillator
fosc
MOTORDRIVER
Frequency of internal oscillator
3.6
4
fPWM
MOTxx PWM frequency
Double PWM frequency
Frequency depends only on 20.8 22.8
internal oscillator
41.6 45.6
fj
PWM Jitter frequency
fd
PWM Jitter depth
Tbrise MOTxx turn−on voltage slope, 10% to 90%
EMC[1:0] = 00
150
IMD = 800 mA
EMC[1:0] = 01
100
EMC[1:0] = 10
50
EMC[1:0] = 11
25
Tbfall MOTxx turn−off voltage slope, 90% to 10%
EMC[1:0] = 00
150
IMD = 800 mA
EMC[1:0] = 01
100
EMC[1:0] = 10
50
EMC[1:0] = 11
25
DIGITAL OUTPUTS
TH2L
DO Output fall−time from VinH to VinL
ERRB
Capacitive load 400 pF and
pull−up resistor of 1.5 kW
CHARGE PUMP
fCP
CPN Charge pump frequency
250
CPP
TCPU MOTxx Start−up time of charge pump
CLR FUNCTION
Spec external components
TCLR
CLR
NXT FUNCTION
Hard reset duration time
20
−
tNXT_HI
NXT minimum, high pulse width
See Figure 2
2
tNXT_LO
NXT minimum, low pulse width
See Figure 2
2
NXT
tDIR_SET
NXT hold time, following change of DIR
See Figure 2
0.5
tDIR_HOLD
NXT hold time, before change of DIR
See Figure 2
0.5
Max.
Unit
4.4
MHz
24.8
kHz
49.6
kHz
Hz
% fPWM
V/ms
V/ms
V/ms
V/ms
V/ms
V/ms
V/ms
V/ms
50
ns
kHz
90
ms
ms
ms
ms
ms
tNXT_HI
tNXT_LO
NXT
0,5 VCC
tDIR_SET tDIR_HOLD
DIR ÏÏÏÏÏÏ VALID ÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ
Figure 2. NXT−input Timing Diagram
http://onsemi.com
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