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UCD9240PFCR Datasheet(PDF) 10 Page - Texas Instruments

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Part # UCD9240PFCR
Description  Digital PWM System Controller
Download  39 Pages
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Manufacturer  TI1 [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI1 - Texas Instruments

UCD9240PFCR Datasheet(HTML) 10 Page - Texas Instruments

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TYPICAL APPLICATION SCHEMATIC
–Vsens-rail3
10kW
0.1 mF
FCX491A
+3.3V
UCD9240RGC
53
52
51
50
57
56
55
54
3
59
60
61
62
63
1
2
EAp1
EAn2
EAp2
EAn1
EAn4
EAp4
EAn3
EAp3
AddrSens1
AddrSens0
CS-1A(COMP1)
CS-2A(COMP2)
CS-2B
CS-1B
CS-4A(COMP4)
CS-3A(COMP3)
+Vsens-rail1
–Vsens-rail2
+Vsens-rail2
–Vsens-rail1
–Vsens-rail4
+Vsens-rail4
+Vsens-rail3
CS-rail2B
CS-rail1A
CS-rail4A
CS-rail3A
CS-rail2A
CS-rail1B
6
5
4
Temp
Vtrack
Vin/Iin
16
15
PMBus-Data
PMBus-Clk
39
28
27
PowerGood(TMS)
PMBus-Ctrl
PMBus-Alert
+3.3V
4.7 mF
20
19
18
17
12
11
23
21
DPWM-1A
15kW
0.1 mF
34
25
14
13
24
22
35
33
30
29
32
31
42
FAN-Tach
36
41
FAN-PWM
SyncOut
37
38
SyncIn
10
40
DPWM-2B
DPWM-2A
DPWM-1B
FAULT-1B
FAULT-1A
DPWM-4A
DPWM-3A
FAULT-2A
FAULT-4A
FAULT-3A
FAULT-2B
SRE-1B
SRE-1A
SRE-2B
SRE-2A
SRE-4A
SRE-3A
TMUX-1
TMUX-0
TMUX-2
FAN-TACH
FAN-PWM
SYNC-OUT
SYNC-IN
RCR
TRST
9
RESET
10kW
10kW
V
IN
10kW
14
13
A1
A0
1
12
15
A4
A3
A2
4
2
A7
A6
A5
5
8
11
10
6
S2
Com
S0
S1
EN
3
Temp-rail1B
Temp-rail1A
Temp-rail2B
Temp-rail2A
Temp-rail4A
Temp-rail3A
CD74HC4051
+3.3V
PTD08A010W
FAULT
PWM
SRE
INH
IOUT
PTD08A010W
FAULT
PWM
SRE
INH
IOUT
Commutation
UCD7230Driver
Logic
FAULT
PWM
SRE
INH
IOUT
TempSensor
PTD08A020W
Temp-rail1A
INH
+3.3V
V
IN
V
O
PTD08A020W
FAULT
PWM
SRE
INH
IOUT
Temp-rail1B
CS-rail1A
+Vsens-rail1
–Vsens-rail1
Temp-rail2A
Temp-rail2B
+Vsens-rail2
–Vsens-rail2
CS-rail1B
CS-rail2A
CS-rail2B
PTD08A010W
FAULT
PWM
SRE
INH
IOUT
PTD08A010W
FAULT
PWM
SRE
INH
IOUT
Temp-rail3A
Temp-rail4A
+Vsens-rail4
–Vsens-rail4
CS-rail3A
CS-rail4A
+Vsens-rail3
–Vsens-rail3
82.5kW
TEMP
VOUT
GND
VBIAS
TEMP
GND
TEMP
VOUT
GND
TEMP
VOUT
GND
TEMP
VOUT
GND
TEMP
VOUT
GND
VBIAS
VIN
VIN
VBIAS
VIN
VIN
VBIAS
VIN
VIN
VBIAS
VIN
VIN
VBIAS
VIN
VIN
[A]
UDG-08035
UCD9240
SLUS766C – JULY 2008 – REVISED NOVEMBER 2008................................................................................................................................................... www.ti.com
Figure 3 shows the UCD9240 power supply controller as part of a system that provides the regulation of four
independent power supplies. The loop for each power supply is created by the respective voltage outputs feeding
into the differential voltage error ADC (EADC) inputs, and completed by DPWM outputs feeding into the gate
drivers for each power stage.
The ±Vsenserail signals must be routed to the EAp/EAn input that matches the number of the lowest DPWM
configured as part of the rail. (See more detail on page 19, "Flexible Rail/Power Stage Configuration".)
Figure 3. Typical Application Schematic
10
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Copyright © 2008, Texas Instruments Incorporated
Product Folder Link(s): UCD9240


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