FMS7401 Fairchild Semiconductor, FMS7401 Datasheet - Page 39

• Manufacturer Part Number: FMS7401
• Description: Digital Power Controller
• Manufacturer: Fairchild Semiconductor

REV. 1.0.3 1/24/05
PRODUCT SPECIFICATION
a)
b)
F
T1CLK
ADSTROBE
T1CMPB
T1CMPA
Fin
T1HS1
T1HS2
0xFFF
0x00
T1RA
Block
ADC
PS2 PS1 PS0
DIVIDER
PSCALE
T1HS1
T1HS2
Clock
Fout
T
DT
T1CMPB
T
[11:0]
DT
Sample
Figure 12. Example PWM Output Signals a) and b)
Hold
T
SMP
&
Figure 11. Timer 1’s PWM Mode Block Diagram
12
T
Conversion
12
TMR1
[11:0]
T1RA
[11:0]
DT
ADC
T
CONV
T1CMPA
[11:0]
T
DT
T1PND
Sample
Hold
&
TMR1=T1CMPA
T
DT
T
T
Conversion
PWM
DT
T
ADC
DT
Dead Time
5
Control
DTIME
DT[4:0]
TMR1=T1CMPB
Sample
PWMOFF
Hold
&
Conversion
2
1
T1BOUT
ADC
1
PORTGD
ENDAS
5
Sample
0
Hold
&
Conversion
ADSTROBE
ADC
G1/AIN3
T1HS2/G5
T1HS1/G0
FMS7401L
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