PTD08A210W Datasheet, PDF (9/15 Pages) Texas Instruments – SINGLE 10-A OUTPUT 4.75-V to 14-V INPUT, NON-ISOLATED DIGITAL POWERTRAIN MODULE

PTD08A210W
www.ti.com
APPLICATION INFORMATION
SLTS300 – SEPTEMBER 2010
Digital Power
Figure 22 shows the UCD9220 power supply controller working with a single PTD08A210W, digital powertrain
module. The loop for the power supply is created by the voltage output feeding into the Error ADC differential
inputs, and completed by the DPWM output feeding the PTD08A210W module. A second stand-alone power
stage can be controlled by the UCD9220 controller. The PTD08A210W's output cannot be paralleled. It can only
be used as a single stand-alone 10-A module.
V_IN
+3.3 V
4
+3.3 V
Vin/Iin
FLT-1A ⁶
DPWM-1A ¹²
SRE-1A ⁹
CS-1A ⁴²
5 _RESET
10 _PMBus-CLK
11 _PMBus-Data
19 _PMBus-Alert
20 _PMBus-CNTL
21 _GPIO-1
22 _GPIO-2
23
TMUX-0
24
TMUX-1
UCD9220
26 _PowerGood
27 _TCK
28 _TDO/SYNC-OUT
29 _TDI/SYNC-IN
30 _TMS
31 _TRST
43 _ADDR-0
44 _ADDR-1
45 _Vtrack
48 _ADCref
FAULT-1B ⁷
DPWM-1B ¹³
SRE-1B ¹⁸
CS-1B ²
FAULT-2A ⁸
DPWM-2A ¹⁴
SRE-2A ¹⁵
CS-2A ³
FAULT-3A ²⁵
DPWM-3A ¹⁶
SRE-3A ¹⁷
CS-3A ¹
46
Temp
37
EAP1
EAN1 ₃₈
EAP2 ³⁹
40
EAN2
To 2nd
Power
Stage
1
V_IN
3 PGND
6 FF
4 PWM
2
V_IN
V_OUT 16
V_OUT 15
5 SRE
11 ^ISENSE
PTD08A210W
PGND 14
PGND 13
PGND 8
PGND 7
AGND AGND ^T_SENSE
9
10
12
V_OUT
To 2nd Power Stage
UDG-10064
Figure 22. Typical Dual-Output Application Schematic
Note: A low dropout linear regulator such as the TI TPS715A33 can provide the 3.3-V bias power to the UCD9220.
Copyright © 2010, Texas Instruments Incorporated
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