ZHCSH55B December 2017 – September 2018 TPS65218D0
UNLESS OTHERWISE NOTED, this document contains PRODUCTION DATA.
PIN | TYPE | DESCRIPTION | |
---|---|---|---|
NO. | NAME | ||
1 | IN_DCDC1 | P | Input supply pin for DCDC1. |
2 | SDA | I/O | Data line for the I2C interface. Connect to pullup resistor. |
3 | SCL | I | Clock input for the I2C interface. Connect to pullup resistor. |
4 | LDO1 | O | Output voltage pin for LDO1. Connect to capacitor. |
5 | IN_LDO1 | P | Input supply pin for LDO1. |
6 | IN_LS3 | P | Input supply pin for load switch 3. |
7 | LS3 | O | Output voltage pin for load switch 3. Connect to capacitor. |
8 | PGOOD | O | Power-good output (configured as open drain). Pulled low when either DCDC1-4 or LDO1 are out of regulation. Load switches and DCDC5-6 do not affect PGOOD pin. |
9 | AC_DET | I | AC monitor input and enable for DCDC1-4, LDO1 and load switches. See Section 5.4.1 for details. Tie pin to IN_BIAS if not used. |
10 | nPFO | O | Power-fail comparator output, deglitched (open drain). Pin is pulled low when PFI input is below power-fail threshold. |
11 | GPIO1 | I/O | Pin configured as DDR reset-input (driving GPO2) or as general-purpose, open-drain output. See Section 5.3.1.14 for more information. |
12 | IN_DCDC4 | P | Input supply pin for DCDC4. |
13 | L4A | P | Switch pin for DCDC4. Connect to inductor. |
14 | L4B | P | Switch pin for DCDC4. Connect to inductor. |
15 | DCDC4 | P | Output voltage pin for DCDC4. Connect to capacitor. |
16 | PFI | I | Power-fail comparator input. Connect to resistor divider. |
17 | DC34_SEL | I | Power-up default selection pin for DCDC3 or DCDC4. Power-up default is programmed by a resistor connected to ground. See Section 5.3.1.13 for resistor options. |
18 | IN_nCC | O | Output pin indicates if DCDC5 and DCDC6 are powered from main supply (IN_BU) or coin-cell battery (CC). Pin is push-pull output. Pulled low when PMIC is powered from coin cell battery. Pulled high when PMIC is powered from main supply (IN_BU). |
19 | PGOOD_BU | O | Power-good, push-pull output for DCDC5 and DCDC6. Pulled low when either DCDC5 or DCDC6 is out of regulation. Pulled high (to DCDC6 output voltage) when both rails are in regulation. |
20 | L5 | P | Switch pin for DCDC5. Connect to inductor. |
21 | FB5 | I | Feedback voltage pin for DCDC5. Connect to output capacitor. |
22 | FB6 | I | Feedback voltage pin for DCDC6. Connect to output capacitor. |
23 | L6 | P | Switch pin for DCDC6. Connect to inductor. |
24 | SYS_BU | P | System voltage pin for battery-backup supply power path. Connect to 1-µF capacitor. Connecting any external load to this pin is not recommended. |
25 | CC | P | Coin cell battery input. Serves as the supply to DCDC5 and DCDC6 if no voltage is applied to IN_BU. Tie this pin to ground if it is not in use. |
26 | GPIO3 | I/O | Pin can be configured as warm reset (negative edge) for DCDC1/2 or as a general-purpose, open-drain output. See Section 5.3.1.14 for more details. |
27 | IN_BU | P | Default input supply pin for battery backup supplies (DCDC5 and DCDC6). |
28 | N/C | — | No connect. Leave pin floating. |
29 | N/C | ||
30 | LS1 | O | Output voltage pin for load switch 1. Connect to capacitor. |
31 | IN_LS1 | P | Input supply pin for load switch 1. |
32 | IN_LS2 | P | Input supply pin for load switch 2. |
33 | LS2 | O | Output voltage pin for load switch 2. Connect to capacitor. |
34 | GPO2 | O | Pin configured as DDR reset signal (controlled by GPIO1) or as general-purpose output. Buffer can be configured as push-pull or open-drain. |
35 | INT_LDO | P | Internal bias voltage. Connect to a 1-μF capacitor. TI does not recommended connecting any external load to this pin. |
36 | IN_BIAS | P | Input supply pin for reference system. |
37 | IN_DCDC3 | P | Input supply pin for DCDC3. |
38 | L3 | P | Switch pin for DCDC3. Connect to inductor. |
39 | FB3 | I | Feedback voltage pin for DCDC3. Connect to output capacitor. |
40 | nWAKEUP | O | Signal to SOC to indicate a power on event (active low, open-drain output). |
41 | FB2 | I | Feedback voltage pin for DCDC2. Connect to output capacitor. |
42 | L2 | P | Switch pin for DCDC2. Connect to inductor. |
43 | IN_DCDC2 | P | Input supply pin for DCDC2. |
44 | PB | I | Push-button monitor input. Typically connected to a momentary switch to ground (active low). See Section 5.4.1 for details. |
45 | nINT | O | Interrupt output (active low, open drain). Pin is pulled low if an interrupt bit is set. The pin returns to Hi-Z state after the bit causing the interrupt has been read. Interrupts can be masked. |
46 | PWR_EN | I | Power enable input for DCDC1-4, LDO1 and load switches. See Section 5.4.1 for details. |
47 | FB1 | I | Feedback voltage pin for DCDC1. Connect to output capacitor. |
48 | L1 | P | Switch pin for DCDC1. Connect to inductor. |
— | Thermal Pad | P | Power ground and thermal relief. Connect to ground plane. |