Datasheet

Block diagram and pin information L9942
8/40 Doc ID 11778 Rev 7
20 RREF
Reference Resistor The reference resistor is used to generate a
temperature stable reference current used for current control and internal
oscillator. At this output a voltage of about 1.28V is present. The resistor
should be chosen that a current of about 200uA will flow through the
resistor.
21 EN
Enable input: The input requires CMOS logic levels. The EN input has a
pull-down resistor. In standby-mode outputs will be switched off and all
registers will be cleared. If EN is set to a logic high level then the device will
enter the active mode.
Table 2. Pin description (continued)
Pin Symbol Function