E981.07 Datasheet, PDF (10/46 Pages) ELMOS Semiconductor AG – Two independent operating channels

Two Channel Sensor Interface PSI5
ADVANCE PRODUCT INFORMATION JUL 26, 2011
4 Detailed Electrical Specification
4.1 DC Parameter
4.1.1 Analogue Voltage Power Supply and Biasing Circuit
E981.07
No.
Parameter
Symbol
Condition
Min. Typ. Max. Unit
1 Quiescent current
consumption
ISUPQuies.
I +I +I SAT_BUS_Q SAT_SYNC_Q SAT_VCC_Q
-
Interfaces off
3
4
mA
2 Current consumption ISUPOp.
operating
I +I +I SAT_BUS SAT_SYNC SAT_VCC
Interfaces on
-
7
10 mA
3 BUS quiescent
ISAT_BUS_Q
current consumption
Interfaces off
-
1
2
mA
4 BUS current
ISAT_BUS
consumption operating
Without load
-
3.5
6
mA
5 BUS current
ISAT_BUS
consumption operating
With load, 0<I SAT_FDX < 65mA
(load current to be added)
with /without sync pulse
3.5
6
mA
6 SYNC quiescent
ISAT_SYNC_Q
current consumption
Without load, no sync-pulse,
-
all interfaces on, no load
0.6
1
mA
7 SYNC current
ISAT_SYNC
consumption operating
Average current, all
interfaces active, no load,
500µs Sync-cycle
-
0.7
2
mA
8 SYNC current
ISAT_SYNC
consumption operating
Average current, all
interfaces active, I SAT_FDX <
35mA, 500µs Sync-cycle
(load current at SATFDx
2*35mA included, no cap.
load) ②
-
3.5 4.8 mA
9 SYNC current
ISAT_SYNC
consumption operating
Dynamic (load current of
CBus=100nF) ①
150
mA
① Not tested in production
② The SATFDx pin is supplied by VSYNC for 20µs (if VSYNC is larger VBUS, otherwise VBUS is always
delivering the current), the average current consumption from VSYNC due to the load current can be
calculated (here for 500µs sync-periode) by 20µs/500µs * load current * number of interfaces. A capacitive
load increases the current consumption at VSYNC due to the charging of the bus-capacitance. The
additional charging current can be calculated as follows: Icharging = number of channels * Vdelta* Cload/500µs;
Vdelta: sync pulse amplitude, about 5V)
ELMOS Semiconductor AG
Data Sheet 10 / 45
QM-No.: 25DS0050E.00
This document contains information on a new product. ELMOS Semiconductor AG reserves the right to change specifications and information herein without notice.