Datasheet
TJA1085 All information provided in this document is subject to legal disclaimers. © NXP B.V. 2012. All rights reserved.
Product data sheet Rev. 1 — 23 October 2012 36 of 61
NXP Semiconductors
TJA1085
FlexRay active star coupler
I
CC
supply current AS_Normal; V
TXEN
=0 V;
V
BGE
=V
IO
; R
bus
=45;
all branches in Branch_Normal
[1]
-180240mA
AS_Normal; V
TXEN
=V
IO
;
V
BGE
=0V; R
bus
=45;
all branches in Branch_Normal
and/or Branch_Disabled
[1]
--80mA
AS_Standby
[1][2]
-435A
AS_Standby; T
vj
85 C
[1][2]
-415A
AS_Sleep, AS_Reset
[1][2]
-030A
AS_Sleep, AS_Reset; T
vj
85 C
[1][2]
-010A
V
uvd
undervoltage detection
voltage
4.45 - 4.715 V
V
uvr
undervoltage recovery
voltage
4.475 - 4.74 V
V
uvhys
undervoltage hysteresis
voltage
25 - 290 mV
Supply: pins V
BUF1
and V
BUF2
(connected on the PCB)
V
BUF
supply voltage on pin V
BUF
5.5 V V
BAT
60 V;
V
CC
V
uvd(VCC)
4.5 - 5.25 V
4.5 V V
BAT
5.5 V;
V
CC
V
uvd(VCC)
3.5 - 5.25 V
V
(VCC-VBUF)
voltage difference between
V
CC
and V
BUF
V
CC
V
uvr(VCC)
0 - 0.25 V
I
ch(VBAT-VBUF)
charge current from V
BAT
to
V
BUF
5.5 V V
BAT
60 V;
V
CC
V
uvd(VCC)
; 0 V V
BUF
4V
200 100 30 A
V
uvd
undervoltage detection
voltage
4.2 - 4.474 V
V
uvr
undervoltage recovery
voltage
4.225 - 4.499 V
V
uvhys
undervoltage hysteresis
voltage
25 - 299 mV
Supply: pin V
IO
V
IO
supply voltage on pin V
IO
operating range 2.8 - 5.25 V
I
IO
supply current on pin V
IO
AS_Normal; V
TXD
=V
IO
- - 1000 A
AS_Standby; AS_Sleep;
AS_PowerOff;
V
SCSN
= V
TXEN
= V
RSTN
= V
VIO
-27A
I
r
reverse current from digital input pin to V
IO
;
AS_PowerOff;
V
TXEN
= V
TXD
= V
BGE
= V
SCSN
=
V
SCLK
= V
SDI
= V
RSTN
= 5.25 V;
V
CC
=V
IO
=0 V
5-+5A
Table 14. Static characteristics
…continued
All parameters are guaranteed for V
BAT
= 4.45 V to 60 V; V
CC
= 4.45 V to 5.25 V; V
BUF
= 4.45 V to 5.25 V;V
IO
= 2.55 V to
5.25 V; T
vj
=
40
C to +150
C; C
bus
= 100 pF; R
bus
= 40
to 55
; C
RXD
= 15 pF and C
TRXD0
= C
TRXD1
= 50 pF unless
otherwise specified. All voltages are defined with respect to ground; positive currents flow into the IC.
Symbol Parameter Conditions Min Typ Max Unit