Silicon Laboratories SI2494/39 manual Ilim =, Loop Current Transfer Function, LVCS40 Condition

										AN93
	256
	224				ILIM = 1
	192									ILIM = 0
	160
LCS Bits	128
	96
	64
	32
	0
	0	16	32	48	64	80	96	112	128	144
					Loop Current (m A)

Figure 16. Typical Loop Current LCS Transfer Function

	Table 32. Loop Current Transfer Function
LVCS[4:0]	Condition
00000	Insufficient line current for normal operation.
00001	Minimum line current for normal operation.
11111	Loop current overload. Overload is defined as 128 mA or more, except
	in TBR21, where overload is defined as 56 mA or more.

Rev. 1.3 41