ZHCSL07C September 2019 – August 2021 TPS8802
PRODUCTION DATA
A central analog bias block connects to many of the amplifiers, drivers, and regulators. This block is enabled when any of its connected blocks are enabled. Similarly, an internal 8-MHz oscillator is enabled when the boost converter or photo input amplifier is enabled. Table 8-2 lists the conditions when the bias block and 8-MHz oscillator are enabled. The bias block and 8-MHz oscillator consume current in addition to the connecting blocks whenever they are enabled. Because the specified current consumption of each block does not include the bias block or the 8-MHz oscillator, add the bias block and 8-MHz oscillator currents when calculating system power consumption. Typical values of the bias block and 8-MHz oscillator current are shown in Section 6.12.
| BLOCK | CONDITION | BIAS ENABLED? | 8-MHZ OSC ENABLED? |
|---|---|---|---|
| Photo input amplifier | PAMP_EN = 1 | Yes | Yes |
| Boost converter | BST_EN = 1 | Yes | Yes |
| AMUX buffer | AMUX_SEL[0:2] ≠ 000 | Yes | No |
| Horn driver | HORN_EN = 1 | Yes | No |
| LED LDO | LEDLDO_EN = 1 | Yes | No |
| Photo gain amplifier | PGAIN_EN = 1 | Yes | No |
| Battery test load | BATTEST_EN = 1 | Yes | No |
| LED driver | LEDEN = VMCU and LEDPIN_EN = 1 | Yes | No |
| Temperature monitor | OTS_EN = 1 | Yes | No |