HI-5001CRI [HOLTIC]
1Mbps CAN Transceiver with Low Power Standby Mode; 1Mbps的CAN与低功耗待机模式收发器型号: | HI-5001CRI |
厂家: | HOLT INTEGRATED CIRCUITS |
描述: | 1Mbps CAN Transceiver with Low Power Standby Mode |
文件: | 总13页 (文件大小:83K) |
中文: | 中文翻译 | 下载: | 下载PDF数据表文档文件 |
HI-5000, HI-5001, HI-5002
1Mbps CAN Transceiver with
Low Power Standby Mode
September 2011
PIN CONFIGURATIONS (Top Views)
GENERALDESCRIPTION
TXD - 1
GND - 2
VDD - 3
RXD - 4
8 - STB
The HI-5000 is a 1 Mbps Controller Area Network (CAN)
transceiver. It interfaces between a CAN protocol con-
troller and the physical wires of the bus in a CAN network.
Differential output amplitude and current drive capability
are specifically enhanced to meet the needs of long cable
runs typical in many applications such as industrial auto-
mation.
7 - CANH
6 - CANL
5 - SPLIT
HI-5000PSI
TXD - 1
GND - 2
VDD - 3
RXD - 4
8 - STB
7 - CANH
6 - CANL
5 - VIO
HI-5001PSI
The HI-5000 supports two modes of operation: Normal
Mode and Standby Mode. The Standby Mode is a very
low-current mode which continues to monitor bus activity
and allows an external controller to manage wake-up.
8 - PIN PLASTIC NARROW BODY SOIC
Superior common-mode receiver performance makes
the device especially suitable for applications where
ground reference voltages may vary from point to point
over long distances along the CAN bus. In addition, the
HI-5000 provides a SPLIT pin to give an output reference
voltage of VDD/2 which can be used for stabilizing the re-
cessive bus level when the split termination technique is
used to terminate the bus.
GND
GND
VDD
VDD
1
2
3
4
12 CANH
11 CANH
10 CANL
HI-5002PCI
9
CANL
A TXD dominant time-out feature also protects the bus
from being driven into a permanent dominant state (so-
called “babbling idiot”) if pin TXD becomes permanently
low due to application failure.
16 - PIN PLASTIC 4 x 4mm QFN
The device also has short circuit protection to +/-58V on
CANH, CANL and SPLIT pins and ESD protection to
+/- 6kV on all pins.
FEATURES
The HI-5001 is identical to the HI-5000 except the SPLIT
pin is substituted with a VIO supply voltage pin. This al-
lows the HI-5001 to interface directly with controllers with
2.5V or 3.3V supply voltages.
· Compatible with ISO 11898-5 standard.
· Signaling rates up to 1Mbit/s.
· Internal VDD/2 voltage source available to stabilize the
recessive bus level if split termination is used (HI-5000
SPLIT pin).
· VIO input on HI-5001 allows for direct interfacing with 2.5V
or 3.3V controllers.
· Detection of permanent dominant on TXD pin (babbling
idiot protection).
The HI-5002 provides both the SPLIT and VIO supply
voltage pins in a compact 16-pin QFN.
All three devices are available in industrial -40oC to +85oC
temperature ranges. “RoHS compliant” lead-free options
are also available.
· High impedance allows connection of up to 120 nodes.
· CANH, CANLand SPLITpins short-circuit proof to +/-58V.
· Will not disturb the bus if unpowered.
HOLT INTEGRATED CIRCUITS
www.holtic.com
(DS5000 Rev. B)
09/11
HI-5000, HI-5001, HI-5002
PIN DESCRIPTIONS
SIGNAL
TXD
FUNCTION
INPUT
DESCRIPTION
100kOhm internal pull-up. Transmit Data Input.
Chip 0V supply
GND
POWER
POWER
OUTPUT
BUS I/O
BUS I/O
INPUT
VDD
Positive supply, 5V +/-5%. Bypass with 0.1uF ceramic capacitor.
Receive Data Output.
RXD
CANL
CANH
STB
CAN Bus Line Low.
CAN Bus Line High.
100kOhm internal pull-up. Standby Mode selection input. Drive STB low or connect to GND
for Normal operation. Drive STB high to select low-current Standby Mode.
Supplies a VDD/2 output to provide recessive bus level stabilization when a split termination
is used to terminate the bus.
SPLIT
(HI-5000)
VIO
INPUT
INPUT
Connect to a 2.5V or 3.3V supply to allow compatibility of all digital I/O (RXD, TXD, STB)
with a low voltage controller input.
(HI-5001)
BLOCK DIAGRAM
VDD
SPLIT
V Split
(HI-5000)
CANH
TXD
Dominant
Detect
CANL
TXD
STB
Driver
Standby
Control
VIO
(HI-5001)
Main
Receiver
RXD
GND
MUX
Low power
Standby Rx
Figure 1. HI-5000 Functional Block Diagram
HOLT INTEGRATED CIRCUITS
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HI-5000, HI-5001, HI-5002
FUNCTIONAL DESCRIPTION
due to an unpowered node with high leakage from the bus
lines to ground), the split circuit will force the recessive
voltage to VDD/2.
OPERATING MODES
The HI-5000 provides two modes of operation which are
selectable via the STB pin. Table 1 summarizes the modes.
INTERNAL PROTECTION FEATURES
Table 1 - Operating Modes
Short-circuit protection
MODE
STB pin
Short-circuit protection is provided on the CANH, CANL and
SPLIT pins. These pins are protected from ESD to over 6KV
(HBM) and from shorts between -58V and +58V continuous,
as specified in ISO 11898-5. The short circuit current is limited
to less than 200mAtypical.
Normal
LOW
HIGH
Standby
TXD permanent dominant time-out
Normal Mode
A timer circuit prevents the bus lines being driven into a
permanent dominant state, which would result in a situation
blocking all bus traffic. This could happen in the case of the
TXD pin becoming permanently low due to a hardware or
application failure. The timer is triggered by a negative edge
on the TXD pin (start of dominant state). If the TXD pin is not
set high (recessive state) after a typical time of 2ms, the
transmitter outputs will be disabled, putting the bus lines into
the recessive state. The timer is reset by a positive edge on
the TXD pin. Note that the minimum TXD dominant time-out
time, tdom = 300μs, defines the minimum possible bit rate of
40kbit/s (the CAN protocol specifies a maximum of 11
successive dominant bits − 5 successive dominant bits
immediately followed by an error frame).
Normal mode is selected by setting the STB pin to a LOW
logic level (GND). In this mode, the transceiver transmits and
receives data in the usual way from the CANH and CANLbus
lines. The differential receiver converts the analog bus data
to digital data which is output on the RXD pin (Note: the RXD
output on HI-5001 is compatible with 2.5V or 3.3V controllers
if the VIO pin is connected to a 2.5V or 3.3V supply).
Standby Mode
Standby Mode is selected by setting the STB pin to a HIGH
logic level. In this mode, the transmitter is switched off and a
low power differential receiver monitors the bus lines for
activity. A dominant signal of more than 3ms will be reflected
on the RXD pin as a logic LOW, where it may be detected by
the host as a wake-up request. The device will not leave
standby mode until the host forces the STB pin to a logic low.
Fail-safe features
Pin TXD has a pull up in order to set a recessive level if pin
TXD is left open.
Pins TXD and STB will become floating if power is lost. This
will prevent reverse currents via these pins.
SPLIT Circuit
The SPLIT pin provides a stable VDD/2 DC voltage. This
pin can be used to stabilize the recessive common mode
voltage by connecting the SPLIT pin to the center tap of the
split termination (see figure 7). In the case of a recessive
bus voltage dropping below the ideal value of VDD/2 (e.g.
HOLT INTEGRATED CIRCUITS
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HI-5000, HI-5001, HI-5002
TIMING DIAGRAMS
Timing Delays
HIGH
LOW
TXD
CANH
CANL
Dominant
Recessive
0.9V
V
DIFF(BUS) =
V
CANH - VCANL
0.5V
HIGH
LOW
RXD
50%
50%
tdr(TXD)
tdf(TXD)
tdr(RXD)
tdf(RXD)
tProp1
tProp2
TXD dominant time-out feature
transmitter
enabled
tRdom
tdom(TXD)
recessive
HIGH
LOW
TXD
dominant
transmitter disabled
CANH
CANL
HOLT INTEGRATED CIRCUITS
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HI-5000, HI-5001, HI-5002
ABSOLUTE MAXIMUM RATINGS
(Voltages referenced to GND = 0V)
Supply Voltage, VDD, VIO : .....................................................................7V Operating Temperature Range:(Industrial).........................-40°C to +85°C
Current at Input pins ......................................................-100mA to +100mA
Maximum Junction Temperature2 ......................................................175°C
DC Voltages at TXD, RXD and STB ..............................-0.5V to VDD +0.5V
DC Voltages at CANH, CANL and SPLIT: ...............................-58V to +58V
Internal Power Dissipation: ..............................................................900mW
Storage Temperature Range: -65°C to +150°C
Soldering Temperature:
(Ceramic)......................60 sec. at +300°C
(Plastic - leads).............10 sec. at +280°C
(Plastic - body) .....................+260°C Max.
Electrostatic Discharge (ESD)1, All pins ..........................................+/- 6kV
NOTES:
1. Human Body Model (HBM).
2. Junction Temperature TJ is defined as TJ = TAMB + P × Rth, where TAMB is the ambient or operating temperature, P is the power dissipation and Rth is
a fixed thermal resistance value which depends on the package and circuit board mounting conditions.
Stresses above those listed under "Absolute Maximum Ratings" may cause permanent damage to the device. These are stress ratings only. Functional
operation of the device at these or any other conditions above those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
DC ELECTRICAL CHARACTERISTICS
VDD = 5V±5%, Operating temperature range (unless otherwise noted). Positive currents flow into the IC.
LIMITS
PARAMETER
SUPPLY CURRENT
SYMBOL
CONDITIONS
UNIT
MIN
TYP
MAX
VDD Supply Current
IDD
IIO
Recessive: VTXD = VDD
Dominant: VTXD = 0 V
Standby Mode: VTXD = VDD
6
50
15
10
70
30
100
mA
mA
μA
VIO Supply Current
μA
DIGITAL INPUTS (Pins TXD, STB)
HIGH-level input voltage (see Note 1)
LOW-level input voltage
VIH
VIL
70%VDD
− 0.5
VDD + 0.5
30%VDD
V
V
HIGH-level input current
LOW-level input current
IIH
IIL
VTXD = VDD or VIO
VTXD = 0 V
− 5
0
− 50
+ 5
− 150
μA
μA
DIGITAL OUTPUTS
HIGH-level output voltage (RXD Pin) (see Note 1)
LOW-level output voltage (RXD Pin)
VOH
VOL
IOH = 1mA
IOL = 1mA
90%VDD
0
V
V
0.1
10%VDD
Output voltage (SPLIT Pin)
Standby leakage current (SPLIT Pin)
VSPLIT
ISTB
− 100 μA < ISPLIT < 100 μA
0.45VDD 0.5VDD 0.55VDD
V
μA
-5
+5
DRIVER
CANH dominant output voltage
CANL dominant output voltage
VO(CANH)
VO(CANL)
VTXD = 0 V
VTXD = 0 V (See Fig. 2)
3
0.5
3.6
1.4
4.25
1.75
V
V
Recessive output voltage
VCANH(r),
VCANL(r)
VTXD = VDD, RL = 0 (See Fig. 2)
VTXD = VDD, RL = 0 (See Fig. 2)
2
0.5VDD
3
V
V
Bus output voltage in standby
VSTB
-0.1
0.1
Dominant differential output voltage
Recessive differential output voltage
VDIFF(d)(o)
VDIFF(r)(o)
VTXD = 0 V, 45 Ω < RL < 65 Ω
VTXD = VDD, no load (See Fig. 2)
1.5
− 50
1.8
0
3
50
V
mV
Matching of dominant output voltage,
VDD − VO(CANH) − VO(CANL)
VOM
(See Fig. 4)
− 100
2
-40
150
3
mV
V
Steady state common mode output voltage
VOC(ss)
VSTB = 0V, RL = 60 Ω (See Fig. 5)
0.5VDD
NOTE:
1. When VIO is connected (HI-5001 or HI-5002), limits are referenced wrt VIO rather than VDD.
HOLT INTEGRATED CIRCUITS
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HI-5000, HI-5001, HI-5002
DC ELECTRICAL CHARACTERISTICS (cont.)
VDD = 5V±5%, Operating temperature range. Positive currents flow into the IC.
LIMITS
TYP
PARAMETER
SYMBOL
CONDITIONS
UNIT
MIN
MAX
Short-circuit steady-state output current
IOS(ss)
VCANH = +58V, VCANL open
VCANH = -58V, VCANL openV
VCANL = +58V, VCANH open
-20
-200
100
-20
20
100
200
20
mA
mA
mA
mA
VCANL = -58V, VCANH open (See Fig. 6)
RECEIVER
Differential receiver threshold voltage
Differential hysteresis voltage
Differential hysteresis voltage in Standby mode
VTh(Rx)(diff)
VHys(Rx)(diff)
VHys(Stb)(diff)
− 12 V < VCANH, VCANL < + 12 V
− 12 V < VCANH, VCANL < + 12 V
− 12 V < VCANH, VCANL < + 12 V
500
50
500
700
120
900
200
1150
mV
mV
mV
Input leakage current, unpowered node
Differential input resistance
ICANH, ICANL
RIN(DIFF)
VDD = VIO 0 V
VCANH = VCANL = 5V
− 200
25
+ 200
75
μA
kΩ
VTXD = VDD
− 12 V < VCANH, VCANL < + 12 V
50
30
Common mode input resistance
RIN(CM)
VTXD = VDD
− 12 V < VCANH, VCANL < + 12 V
15
45
kΩ
%
Deviation between common mode input resistance
between CANH and CANL
RIN(CM)(m)
VCANH = VCANL
− 3
+ 3
AC ELECTRICAL CHARACTERISTICS
VDD = 5V±5%, Operating temperature range. Positive currents flow into the IC.
LIMITS
TYP
PARAMETER
SYMBOL
CONDITIONS
UNIT
MIN
MAX
Bit time
Bit rate
tBit
fBit
1
40
25
1000
μs
kHz
Common mode input capacitance3
Differential input capacitance3
CIN(CM)
CDIFF(CM)
VTXD = VDD, 1Mbit/s data rate
VTXD = VDD, 1Mbit/s data rate
20
10
pF
pF
Delay TXD to bus active
Delay TXD to bus inactive
Delay bus active to RXD
Delay bus inactive to RXD
tdr(TXD)
tdf(TXD)
tdf(RXD)
tdr(RXD)
40
40
30
70
90
90
70
150
ns
ns
ns
ns
See Timing Diagrans
Propagation delay TXD to RXD (recessive to dominant)
Propagation delay TXD to RXD (dominant to recessive)
tProp1
tProp2
70
110
160
240
ns
ns
TXD permanent dominant time-out
TXD permanent dominant timer reset time
tdom
tRdom
VTXD = 0 V
Rising edge on TXD while in
permanent dominant state
0.3
0.5
2
6
1
ms
μs
Dominant time required on bus for standby receiver
detection
twake
3
5
μs
NOTES:
1. All currents into the device pins are positive; all currents out of the device pins are negative.
2. All typicals are given for VDD = 5V, TA = 25°C.
3. Guaranteed by design but not tested.
HOLT INTEGRATED CIRCUITS
6
HI-5000, HI-5001, HI-5002
Application and Test Information
Transceiver
TXD
VDIFF(d)(o)
RL
VO(CANH)
VO(CANL)
STB
Dominant
~3.5V: VO(CANH)
~2.5V
Recessive
~1.5V: VO(CANL)
Figure 2. CAN Bus Driver Circuit
300 W +/- 1%
Transceiver
TXD
CANH
0V
VDIFF(d)(o)
RL
+
-12V <= VTEST <= +12V
_
CANL
300 W +/- 1%
STB
Figure 3. CAN Bus Driver (Dominant) Test Circuit
Transceiver
TXD
VDIFF(d)(o)
RL
VO(CANH)
V1
VO(CANL)
VOM = VDD - VO(CANH) + VO(CANL)
STB
Figure 4. Driver Output Symmetry Test.
HOLT INTEGRATED CIRCUITS
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HI-5000, HI-5001, HI-5002
Application and Test Information
Transceiver
TXD
VDIFF(d)(o)
RL
V1
VO(CANH)
VO(CANL)
VOC(ss) = VO(CANH) + VO(CANL)
2
STB
Figure 5. Common Mode Output Voltage Test.
Transceiver
CANH
TXD
+
-58V or +58V
_
CANL
V1
Figure 6. CAN Bus Driver Short-Circuit Test. (Note: V1 is a pulse from 0V to VDD with duty cycle
of 99% such that permanent dominant time-out is avoided).
HOLT INTEGRATED CIRCUITS
8
HI-5000, HI-5001, HI-5002
Application and Test Information
VBAT
5V
Regulator
VDD
TXD
RXD
3
CANH
SPLIT
VDD
1
4
TXD
RXD
7
5
RL/2
RL/2
HI-5000
Controller
GND
(optional)
STB
CANL
8
6
2
GND
5V
VBAT
3.3V
Regulator
VDD
7
VIO
1
TXD
RXD
3
5
CANH
VDD
TXD
RXD
4
RL
HI-5001
Controller
STB
CANL
8
6
GND
2
GND
Figure 7. Typical Application Connections
HOLT INTEGRATED CIRCUITS
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HI-5000, HI-5001, HI-5002
ORDERING INFORMATION
HI - 500x xxx x
LEAD
PART
NUMBER
FINISH
Tin / Lead (Sn / Pb) Solder
Blank
F
100% Matte Tin (Pb-free, RoHS compliant)
PART
NUMBER
PACKAGE
DESCRIPTION
PSI
PCI
CRI
8 PIN PLASTIC NARROW BODY SOIC (8HN) (HI-5000 or HI-5001 only)
16 PIN PLASTIC 4 x 4 mm QFN (16PCS) (HI-5002 only)
8 PIN CERDIP (8D) not available Pb-free (HI-5000 or HI-5001 only)
PART
NUMBER
DESCRIPTION
SPLIT pin option
VIO pin option
5000
5001
Both SPLIT and VIO pins available
5002
HOLT INTEGRATED CIRCUITS
10
HI-5000, HI-5001, HI-5002
REVISION HISTORY
P/N
Rev
Date
Description of Change
DS5000 NEW 04/01/11 Initial Release
A
B
04/29/11 Corrected heat-sink note on QFN package drawing.
09/16/11 Update pad and heat-sink dimensions for 16-lead QFN package (16PCS)
HOLT INTEGRATED CIRCUITS
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PACKAGE DIMENSIONS
8-PIN PLASTIC SMALL OUTLINE (SOIC) - NB
(Narrow Body)
inches (millimeters)
Package Type: 8HN
.194 .004
(4.92 .09)
.0085 .0015
(.216 .038)
.236 .008
(5.99 .21)
.154 .004
(3.90 .09)
PIN 1
See Detail A
.0165 .003
(.419 .089)
.055 .005
(1.397 .127)
0° to 8°
.0069 .003
(.1753 .074)
.050
(1.27)
.033 .017
(.838 .432)
BSC = “Basic Spacing between Centers”
is theoretical true position dimension and
has no tolerance. (JEDEC Standard 95)
BSC
Detail A
16-PIN PLASTIC CHIP-SCALE PACKAGE
millimeters
Package Type: 16PCS
Electrically isolated metal
heat sink on bottom of
package
Connect to any ground or
power plane for optimum
thermal dissipation
2.80 .10
4.00 BSC
0.65 BSC
Bottom
View
Top View
4.00 BSC
2.80 .10
0.30 .05
0.40 .05
1.00 max
0.20 typ
BSC = “Basic Spacing between Centers”
is theoretical true position dimension and
has no tolerance. (JEDEC Standard 95)
HOLT INTEGRATED CIRCUITS
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PACKAGE DIMENSIONS
inches (millimeters)
8-PIN CERDIP
Package Type: 8D
.380 ±.004
(9.652 ±.102)
.005 min
(.127 min)
.248 ±.003
(6.299 ±.076)
.039 ±.006
(.991 ±.154)
.100
(2.54)
BSC
.314 ±.003
(7.976 ±.076)
.015 min
(.381min)
.200 max
(5.080 max)
Base Plane
.010 ±.006
(.254 ±.152)
Seating Plane
.018 ±.006
(.457 ±.152)
.163 ±.037
(4.140 ±.940)
.350 ±.030
(8.890 ±.762)
.056 ±.006
(1.422 ±.152)
BSC = “Basic Spacing between Centers”
is theoretical true position dimension and
has no tolerance. (JEDEC Standard 95)
HOLT INTEGRATED CIRCUITS
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