iC-Haus iC-TW29 - RS422 Output Drivers; LED Intensity Control Output; Bias Voltage Outputs

preliminary preliminary
iC-TW29 26-BIT ENCODER PROCESSOR
WITH INTERPOLATION AND BiSS INTERFACE
Rev C1, Page 11/28
ELECTRICAL CHARACTERISTICS
Operating conditions: AVDD = DVDD = IOVDD = 3.1...3.6 V, Tj = –40...+125 °C, reference point AVSS unless otherwise stated
Item Symbol Parameter Conditions Unit
No. Min. Typ. Max.
RS422 Drivers: A+/A–, B+/B–, Z+/Z– (RS422 drivers enabled: MAIN_CFG.rs422 = 1)
901 Idrv() Nominal RS422 Driver Current RL() = 120 Ω between + and – terminals 20 27 mA
902 Isc()hi Short Circuit Current High + or – pin shorted to IOVSS –55 mA
903 Isc()lo Short-Circuit Current Low + or – pin shorted to IOVDD 35 mA
LED Output (enabled: LED_CFG.en = 1)
A01 I()max Permissible Output Current for continuous operation ±15 mA
A02 Vout()hi Output Voltage High VDD = 3.3 V, Tj = 27 °C, I() = –10 mA 2.7 V
A03 Vs()hi Saturation Voltage High Vs()hi = DVDD – V(LED); I() = –10 mA 1 V
A04 Vs()lo Saturation Voltage Low I() = 10 mA 1 V
A05 Isc()hi Short-Circuit Current High LED pin shorted to DVSS –40 mA
A06 Isc()lo Short-Circuit Current Low LED pin shorted to DVDD 40 mA
Bias Outputs: VC, VREF
B01 VC Bias Voltage VC I(VC) = 0 50 %AVDD
B02 dVREF ADC Reference Voltage VREF
versus VC
dVREF = V(VREF) - V(VC); I(VREF) = 0 –1.1 –1 –0.9 V
Temperature Sensor
C01
Tacc Temperature Sensor Accuracy
±5 °C
Tj = 100 °C ±2 °C
0 V
AVDD
MAIN_CFG.input = 2
AVDD
SIN– or COS–
SIN+ or COS+
0.35 V
0 V
0.35 V
1.1 V
1.1 V
0 V
AVDD
AVDD
SIN– or COS–
SIN+ or COS+
0.35 V
0 V
0.35 V
MAIN_CFG.input = 3
AVDD
– 1.1
AVDD
– 1.1
AVDD –
1.1
AVDD –
1.1
1.0 V
1.0 V
MAIN_CFG.input
= 0 or 1
Figure 1: Input Voltage Range (Vin())