Texas Instruments Evaluation Module for UCD9224 Digital PWM System Controller UCD9224EVM-464 UCD9224EVM-464 Datenbogen
Produktcode
UCD9224EVM-464
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Test Setup
5.3
List of Connectors
Table 2. Connector definition
CONNECTORS
PINS
NAME
DESCRIPTION
J1
1
VIN
Input voltage
2
GND
Input voltage return
J2
1 thru 4
GND
USB interface adapter - unconnected
5
USB interface adapter – 3.3V 100ma supply (optional)
6
USB interface adapter – ground
7
PMBus_CNTRL
USB interface adapter – control line
8
PMBus_ALERT
USB interface adapter – alert line
9
PMBus_CLK
USB interface adapter – clock line
10
PMBus_DATA
USB interface adapter – data line
J3
1
GPIO-1
General purpose input/output – UCD9224 pin 22 (SEQ-2)
2
PGOOD
Power good – all rails (UCD9224 Pin 26)
3
AGND
Analog ground reference point for external signals
4
VTRACK
Input reference for external voltage tracking
J4
2-Jan
ADDR-1
Jumper location to modify ADDR-1 setting
4-Mar
ADDR-0
Jumper location to modify ADDR-0 setting
J5
1
+V
OUT2
Output voltage 2
2
-V
OUT2
Output voltage 2 return
J6
1
+V
OUT1
Output voltage 1
2
-V
OUT1
Output voltage 1 return
J7 (optional)
1
REG
3.3 V from onboard regulator U1
(1)
2
3.3 V
3.3-V supply for UCD9224 controller
(1)
3
EXT
3.3 V from J2-5 (PMBus)
J8
1
CNTRL
Manual control line access
2
AGND
Ground
J9 (optional)
1
GND
Input voltage return
(2)
2
Unconnected
3/3 A
VIN
Input voltage
(2)
(1)
J7 is not populated by default and a shunt trace connects Pins 1 and 2 on the EVM.
(2)
J9 (DC power jack) replaces J1 to allow use of a standard 5.5mm/2.5mm power adapter plug.
11
SLUU443 – March 2011
UCD9224EVM-464 Digitally Controlled Dual-Rail POL
© 2011, Texas Instruments Incorporated