ACPL-C87AT/ACPL-C87BT
Automotive High Precision DC Voltage Isolation Sensor
Data Sheet
Lead (Pb) Free
RoHS 6 fully
compliant
RoHS 6 fully compliant options available;
-xxxE denotes a lead-free product
Description
The ACPL-C87AT/C87BT isolation sensors utilize superior
optical coupling technology, with sigma-delta (S-D)
analog-to-digital converter, chopper stabilized amplifiers,
and a fully differential circuit topology to provide
unequaled isolation-mode noise rejection, low offset,
high gain accuracy and stability.
ACPL-C87AT (±1% gain tolerance) and ACPL-C87BT
(±0.5% gain tolerance) are designed for high precision
DC voltage sensing in electronic motor drives, DC/DC
and AC/DC converter and battery monitoring system. The
ACPL-C87AT/C87BT features high input impedance and
operate with full span of analog input voltage up to 2.46 V.
The shutdown feature provides power saving and can be
controlled from external source, such as microprocessor.
The high common-mode transient immunity (15 kV/ms)
of the ACPL-C87AT/C87BT maintains the precision and
stability needed to accurately monitor DC rail voltage in
high noise motor control environments. This galvanic safe
isolation solution is delivered in a compact, surface mount
stretched SO-8 (SSO-8) package that meets worldwide
regulatory safety standards.
Avago R
2
Coupler isolation products provide the rein-
forced insulation and reliability needed for critical auto-
motive and high temperature industrial applications.
Features
•
Unity Gain
•
+/-0.5% (ACPL-C87BT) and +/-1% (ACPL-C87AT) Gain
Tolerance @ 25° C
•
-0.3 mV Input Offset Voltage
•
0.05% Non Linearity
•
25 ppm/°C Gain Drift vs. Temperature
•
100 kHz Bandwidth
•
0 to 2 V Nominal Input Range
•
Qualified to AEC-Q100 Grade 1 Test Guidelines
•
Operating Temperature: -40° C to +125° C
•
Shutdown Feature (Active High)
•
15 kV/ms Common-Mode Rejection at V
CM
= 1 kV
•
Working Voltage, V
IORM
= 1414 V
peak
•
Compact, Surface Mount Stretched SO8 Package
•
Worldwide Safety Approval:
– UL 1577 (5000 V
RMS
/ 1 min.)
– CSA
– IEC/EN/DIN EN 60747-5-5
Applications
•
Automotive BMS Battery Pack Voltage Sensing
•
Automotive DC/DC Converter Voltage Sensing
Functional Diagram
V
DD1
1
8
V
DD2
•
Automotive Motor Inverter DC Bus Voltage Sensing
•
Automotive AC/DC (Charger) DC Output Voltage Sensing
0.1
µF
V
IN
2
0.1
µF
SHDN 3
GND1 4
SHIELD
7 V
OUT+
6 V
OUT-
5
GND2
•
Isolation Interface for Temperature Sensing
•
General Purpose Voltage Sensing and Monitoring
Figure 1. Functional Diagram
0.1
mF
bypass capacitor must be connected between pin 1 and pin 4, and
pin 5 and pin 8 as shown.
CAUTION:
It is advised that normal static precautions be taken in handling and assembly
of this component to prevent damage and/or degradation which may be induced by ESD.
Functional Diagram (Cont.)
V
DD1
V
IN
0−2V
V
IN
SHDN
Isolation
GND1
V
OUT+
V
OUT-
GND2
V
DD2
V
OUT
= V
OUT+
− V
OUT-
0−2V
Figure 2. Functional Diagram 2
15 V
V+
Gate
Driver
5V
MEV1S1505DC
IN OUT
5V
M
Gate
Driver
R1
0.1
µF
39
Ω
R2
10 nF
0.1
µF
R4 20 kΩ
R5 20 kΩ
1 nF
ACPL-C87AT/BT
1 nF
20 kΩ
V
OUT
20 kΩ
V-
Figure 3. Typical Voltage Sensing Circuit
1
2
3
4
VDD1
VIN
SHDN
GND1
VDD2
V
OUT+
V
OUT-
GND2
8
7
6
5
Figure 4. Package Pinout
Pin Description
Pin No.
1
2
3
4
Pin Name
V
DD1
V
IN
SHDN
GND1
Description
Input power supply
When V
DD1
= 0, then V
OUT+
= 0 V, V
OUT-
= 2.6 V
Voltage input, Full scale Range = 2.46 V
Shutdown (Active High)
When active, then V
OUT+
= 0 V, V
OUT-
= 2.6 V
Input Side Ground
Pin No.
8
7
6
5
Pin Name
V
DD2
V
OUT+
V
OUT-
GND2
Description
Output power supply
Positive output voltage
Negative output voltage
Output Side Ground
2
Ordering Information
Option
Part number
ACPL-C87AT
ACPL-C87BT
(RoHS Compliant)
-000E
-500E
Package
Stetched
SO-8
Surface
Mount
X
X
Tape &
Reel
X
UL 5000 V
rms
/
1 Minute rating
X
X
IEC/EN/DIN EN
60747-5-5
X
X
Quantity
80 per tube
1000 per reel
To order, choose a part number from the part number column and combine with the desired option from the option
column to form an order entry.
Example:
ACPL-C87AT-500E to order product of SSO-8 Surface Mount package in Tape and Reel packaging with RoHS compliant.
Contact your Avago sales representative or authorized distributor for information.
Package Outline Drawing (Stretched SO8)
RECOMMENDED LAND PATTERN
5.850 ± 0.254
(0.230 ± 0.010)
PART NUMBER
DATE CODE
8
7
6
5
12.650
(0.498)
6.807 ± 0.127
(0.268 ± 0.005)
1.905
(0.075)
EXTENDED DATECODE
FOR LOT TRACKING
0.450
(0.018)
45°
0.64
(0.025)
1.590 ± 0.127
(0.063 ± 0.005)
RoHS-COMPLIANCE
INDICATOR
C87BT
YWW
EE
1
2
3
4
7°
3.180 ± 0.127
(0.125 ± 0.005)
0.381 ± 0.127
(0.015 ± 0.005)
0.200 ± 0.100
(0.008 ± 0.004)
1.270
(0.050) BSG
0.750 ± 0.250
(0.0295 ± 0.010)
11.50 ± 0.250
(0.453 ± 0.010)
Dimensions in millimeters and (inches).
0.254 ± 0.100
(0.010 ± 0.004)
Figure 5. Package Outline Drawing
Note:
Lead coplanarity = 0.1 mm (0.004 inches).
Floating lead protrusion = 0.25mm (10mils) max.
3
Recommended Pb-Free IR Profile
Recommended reflow condition as per JEDEC Standard, J-STD-020 (latest revision).
Note: Non-halide flux should be used
Regulatory Information
The ACPL-C87AT and ACPL-C87BT are approved by the following organizations:
UL
UL 1577, component recognition
program up to V
ISO
= 5kV
RMS
CSA
Approved under CSA Component
Acceptance Notice #5.
IEC/EN/DIN EN 60747-5-5
IEC 60747-5-5
EN 60747-5-5
DIN EN 60747-5-5
IEC/EN/DIN EN 60747-5-5 Insulation Characteristics
Description
Installation classification per DIN VDE 0110/1.89, Table 1
for rated mains voltage ≤ 150 Vrms
for rated mains voltage ≤ 300 Vrms
for rated mains voltage ≤ 450 Vrms
for rated mains voltage ≤ 600 Vrms
for rated mains voltage ≤ 1000 Vrms
Climatic Classification
Pollution Degree (DIN VDE 0110/1.89)
Maximum Working Insulation Voltage
Input to Output Test Voltage, Method b
V
IORM
X 1.875 = V
PR
, 100% Production Test with t
m
= 1 sec, Partial discharge < 5 pC
Input to Output Test Voltage, Method a
V
IORM
X 1.6 = V
PR
, Type and Sample Test with t
m
= 10 sec, Partial discharge < 5 pC
Highest Allowable Overvoltage
(Transient Overvoltage t
ini
= 60 sec)
Safety-limiting values – maximum values allowed in the event of a failure,
also see Figure 6.
Case Temperature
Input Current
Output Power
Insulation Resistance at T
S
, V
IO
= 500 V
V
IORM
V
PR
V
PR
V
IOTM
Symbol
I – IV
I – IV
I - IV
I - IV
I - III
40/125/21
2
1414
2651
2262
8000
Units
Vpeak
Vpeak
Vpeak
Vpeak
Ts
I
S, INPUT
P
S,OUTPUT
R
S
175
230
600
> 10
9
°C
mA
mW
W
OUTPUT POWER – P
S
, INPUT CURRENT - I
S
700
600
500
400
300
200
100
0
0
25
50
125 150
75
100
T
S
– CASE TEMPERATURE – °C
175
200
P
S
(mW)
I
S
(mW)
Figure 6. Dependence of safety limiting values on temperature
4
Insulation and Safety Related Specifications
Parameter
Minimum External Air Gap
(External Clearance)
Minimum External
Tracking (External Creepage)
Minimum Internal Plastic Gap
(Internal Clearance)
Tracking Resistance
(Comparative Tracking Index)
Isolation Group
(DIN BDE0109)
CTI
Symbol
L(101)
L(102)
Value
8.0
8.0
0.5
Unit
mm
mm
mm
Conditions
Measured from input terminals to output terminals,
shortest distance through air.
Measured from input terminals to output terminals,
shortest distance path along body.
Through insulation distance conductor to conductor,
usually the straight line distance thickness between
the emitter and detector.
DIN IEC 112/VDE 0303 Part 1
Material Group (DIN VDE 0110)
> 175
IIIa
Volts
Absolute Maximum Ratings
Parameter
Storage Temperature
Ambient Operating Temperature
Supply Voltages
Input Voltage
Shutdown Voltage
Output Voltages
Symbol
T
S
T
A
V
DD1
, V
DD2
V
IN
V
SD
V
OUT+
, V
OUT-
Min.
-55
-40
-0.5
-2.0
-0.5
-0.5
Max.
150
125
6.0
V
DD1
+ 0.5
V
DD1
+ 0.5
V
DD2
+ 0.5
Units
°C
°C
Volts
Volts
Volts
Volts
Note
Recommended Operating Conditions
Parameter
Ambient Operating Temperature
Input Supply Voltage
Output Supply Voltage
Input Voltage
Shutdown Voltage
Symbol
T
A
V
DD1
V
DD2
V
IN
V
SD
Min.
-40
4.5
3.0
0
V
DD1
– 0.5
Max.
125
5.5
5.5
2.0
V
DD1
Units
°C
Volts
Volts
Volts
Volts
Notes
5
stm32/stm8
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