9 Power Supply Recommendations

The following power supplies are all required to operate the DMD:

V_SS
V_BIAS
V_DD
V_DDA
V_OFFSET
V_RESET

DMD power-up and power-down sequencing is strictly controlled by the DLP display controller.

CAUTION:

For reliable operation of the DMD, the following power supply sequencing requirements must be followed. Failure to adhere to any of the prescribed power-up and power-down requirements may affect device reliability. See the DMD power supply sequencing requirements in Figure 9-1.

V_BIAS, V_DD, V_DDA, V_OFFSET, and V_RESET power supplies must be coordinated during power-up and power-down operations. Failure to meet any of the below requirements will result in a significant reduction in the DMD reliability and lifetime. Common ground V_SS must also be connected.

Table 9-1 Power Supply Sequence Requirements

SYMBOL	PARAMETER	DESCRIPTION	MIN	MAX	UNIT
t_DELAY	Delay requirement	from V_OFFSET power up to V_BIAS power up	2		ms
V_OFFSET	Supply voltage level	at beginning of power-up sequence delay⁽¹⁾		6	V
V_BIAS	Supply voltage level	at end of power-up sequence delay⁽¹⁾		6	V

(1) See Figure 9-1, Power-Up Sequence Delay Requirement.