UCD9248 Datasheet, PDF (9/32 Pages) Texas Instruments – Digital PWM System Controller

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+3.3V
Vin/Iin
Temperature
+Vs1
-Vs1
Vin/Iin
Vtrack
Temperature
EAP1
EAN1
EAP2
EAN2
EAP3
EAN3
EAP4
EAN4
Sync_In
Sync_Out
ADCref
Aux-in (AD13)
Aux-in (AD14)
SEQ-1
SEQ-2
SEQ-3
TMUX-0
TMUX-1
TMUX-2
+3.3V
TMUX-0
TMUX-1
TMUX-2
TRCK
TMS
TDI
TDO
TCK
nTRST
+3.3V
ADDR-0
ADDR-1
PMBus_Clock
PMBus_Data
PMBus_Alert
PMBus_Cntl
PGood
nRESET
UCD9248
FLT -1A
DPWM-1A
SRE-1A
CS-1A
FLT -1B
DPWM-1B
SRE-1B
CS-1B
FLT -2A
DPWM-2A
SRE-2A
CS-2A
FLT -2B
DPWM-2B
SRE-2B
CS-2B
FLT -3A
DPWM-3A
SRE-3A
CS-3A
FLT -3B
DPWM-3B
SRE-3B
CS-3B
FLT -4A
DPWM-4A
SRE-4A
CS-4A
FLT -4B
DPWM-4B
SRE-4B
CS-4B
UCD7231 Power Stage
Vin
FF
PWM
SRE
IOUT
HS_SNS
BST
HS_Gate
SW
VGG
BP3 ^UCD7231
SRE_Mode
LS_Gate
ILIM
PGND
RDLY
VGG_DIS
CSP
CSN
UCD9248
SLVSA33 – JANUARY 2010
Vin
Temperature
Sensor
Temp _1A
+Vs
-Vs
FF
Temp
PWM
SRE
UCD7231 Power Stage
+Vs
IOUT
-Vs
Temp _1B
FF
Temp
Temp _2A
+Vs1
PWM
SRE
UCD7231 Power Stage
+Vs
IOUT
-Vs
-Vs1
FF
Temp
Temp _2B
PWM
SRE
UCD7231 Power Stage
+Vs
IOUT
-Vs
FF
Temp
PWM
SRE
UCD7231 Power Stage
+Vs
IOUT
-Vs
Temp _3A
FF
Temp
PWM
SRE
UCD7231 Power Stage
+Vs
IOUT
-Vs
Temp _3B
FF
Temp
PWM
SRE
UCD7231 Power Stage
+Vs
IOUT
-Vs
Temp _4A
FF
Temp
PWM
SRE
UCD7231 Power Stage
+Vs
IOUT
-Vs
Temp _4B
+3.3V
Iin
Vin
+3.3V
Vcc
B2
A
SN74LVC1G3157
B1
S
Gnd
Vin/Iin
TMUX-0
Temp _1A
Temp _1B
Temp _2A
Temp _2B
Temp _3A
Temp _3B
Temp _4A
Temp _4B
Vcc
A0
A
A1
A2
A3
CD74HC4051
A7
A5
S2
A6
S1
A7
S0
Vee Gnd ^E
Temperature
TMUX-2
TMUX-1
TMUX-0
Figure 4. Typical Application Schematic
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