BOARDCOM ACPL-K24L Low power, 5-mbd digital cmos optocoupler Datasheet

ACPL-M21L, ACPL-021L, ACPL-024L,
ACPL-W21L, ACPL-K24L
Low Power, 5-MBd Digital CMOS Optocoupler
Data Sheet
Description
Features
Broadcom® ACPL-M21L (single-channel SO-5 package),
ACPL-021L (single-channel SO-8 package), ACPL-024L
(dual-channel SO-8 package), ACPL-W21L (single-channel
stretched SO-6 package), and ACPL-K24L (dual-channel
stretched SO-8 package) are optically coupled logic gates. The
detector IC has CMOS output stage and optical receiver input
stage with built-in Schmitt trigger to provide logic-compatible
waveforms, eliminating the requirement for additional
waveshaping.

An internal shield on the ACPL-M21L/021L/024L/W21L/K24L
guarantees common mode transient immunity of 25 kV/μs at a
common-mode voltage of 1000V. The ACPL-x2xL optocouplers'
series operates from a 2.7V to 5.5V supply with guaranteed AC
and DC performance from an extended temperature range of
–40°C to +105°C.

CAUTION
Take normal static precautions in handling and
assembly of this component to prevent damage
and/or degradation that might be induced by
electrostatic discharge (ESD). The components
featured in this data sheet are not to be used in
military or aerospace applications or
environments.










CMOS output
Wide supply voltage: 2.7V to 5.5V
Low power supply current IDD: 1.1 mA/channel max.
Low forward current IF: 1.6 mA min.
Speed: 5 MBd typ.
Pulse width distortion (PWD): 200 ns max.
Propagation delay skew (tpsk): 220 ns max.
Propagation delay (tp): 250 ns max.
Common mode rejection: 25 kV/μs min. at VCM = 1000V
Hysteresis: 0.2 mA typ
Temperature range: –40°C to +105°C
Safety and regulatory approvals
— UL 1577 recognized: 3750 VRMS for 1 minute for
ACPL-M21L/021L/024L and 5000 VRMS for 1 minute for
ACPL-W21L/K24L
— CSA Approval
— IEC/EN 60747-5-5, Approval for Reinforced Insulation
Applications







Broadcom
-1-
Low isolation of high speed logic systems
Computer peripheral interface
Microprocessor system interface
Ground loop elimination
Pulse transformer replacement
High-speed line receiver
Power control systems
ACPL-M21L, ACPL-021L, ACPL-024L, ACPL-W21L, ACPL-K24L
Data Sheet
Figure 1 Functional Diagram
Anode
Cathode
1
3
Shield
6
VDD
5
VO
4
GND
Anode
1
6
VDD
NC
2
5
VO
Cathode
3
4
GND
ACPL-W21L
ACPL-M21L
Anode1
1
8
VDD
VO
Cathode1
2
7
V01
6
NC
Cathode2
3
6
V02
5
GND
Anode2
4
5
GND
NC
1
8
VDD
Anode
2
7
Cathode
3
NC
4
Shield
Shield
ACPL-021L
Shield
ACPL-024L/K24L
Table 1 Truth Table
LED
VO
ON
HIGH
OFF
LOW
NOTE
A 0.1 μF bypass capacitor must be connected between pins Vdd and GND.
Broadcom
-2-
ACPL-M21L, ACPL-021L, ACPL-024L, ACPL-W21L, ACPL-K24L
Data Sheet
Ordering Information
ACPL-M21L, ACPL-024L, and ACPL-021L are UL Recognized with 3750 VRMS for 1 minute per UL1577.
ACPL-W21L and ACPL-K24L are UL Recognized with 5000 VRMS for 1 minute per UL1577.
Table 2 Ordering Information
Option
Part Number
ACPL-M21L
ACPL-024L
ACPL-021L
ACPL-W21L
ACPL-K24L
RoHS
Compliant
-000E
Package
SO-5
UL1577 5000
Surface Mount Tape and Reel VRMS /1 Minute
Rating
X
X
-500E
X
X
-560E
X
X
SO-8
X
-500E
X
X
-560E
X
X
X
-500E
X
X
-560E
X
X
X
X
X
X
X
X
-500E
X
X
X
-560E
X
X
X
Stretched SO8
1500 per reel
100 per tube
1500 per reel
-060E
-000E
100 per tube
100 per tube
X
Stretched SO6
1500 per reel
1500 per reel
X
-060E
-000E
X
100 per tube
X
SO-8
100 per tube
1500 per reel
X
-060E
-000E
Quantity
100 per tube
-060E
-000E
IEC/EN
60747-5-5
X
X
-060E
X
X
-500E
X
X
X
-560E
X
X
X
X
1500 per reel
X
100 per tube
100 per tube
1000 per reel
X
1000 per reel
X
80 per tube
80 per tube
1000 per reel
X
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 1:
ACPL-M21L-500E to order product of SO-5 package in Tape and Reel packaging with RoHS compliant.
Option data sheets are available. Contact your Avago sales representative or authorized distributor for information.
Broadcom
-3-
ACPL-M21L, ACPL-021L, ACPL-024L, ACPL-W21L, ACPL-K24L
Data Sheet
Package Outline Drawings
Figure 2 ACPL-M21L SO-5 Package
LAND PATTERN RECOMMENDATION
0.33
(0.013)
ROHS-COMPLIANCE
INDICATOR
0.64
(0.025)
1.27
(0.05)
PART NUMBER
DATE CODE
NNNN
4.4 ±0.1
(0.173 ±0.004)
YYWW
EEE
7.0 ±0.2
(0.276 ±0.008)
4.39
(0.17)
8.26
(0.325)
Lot ID
1.80
(0.071)
0.4 ±0.05
(0.016 ±0.002)
2.54
(0.10)
3.6 ±0.1*
(0.142 ±0.004)
2.5 ±0.1
(0.098 ±0.004)
0.102 ±0.102
(0.004 ±0.004)
0.15 ±0.025
(0.006 ±0.001)
7° MAX.
1.27 BSC
(0.050)
0.71 MIN
(0.028)
MAX. LEAD COPLANARITY
= 0.102 (0.004)
Dimensions in millimeters (inches).
Note: Foating Lead Protrusion is 0.15 mm (6 mils) max.
Broadcom
-4-
ACPL-M21L, ACPL-021L, ACPL-024L, ACPL-W21L, ACPL-K24L
Data Sheet
Figure 3 ACPL-024L/021L SO-8 Package
LAND PATTERN RECOMMENDATION
1.91
(0.075)
0.64
(0.025)
ROHS-COMPLIANCE
INDICATOR
8
7
5
5.994 ±0.203
(0.236 ±0.008)
NNNN
3.937 ±0.127
(0.155 ±0.005)
PIN ONE
6
PART NUMBER
DATE CODE
Lot ID
YYWW
EEE
1
2
3
0.406 ±0.076
(0.016 ±0.003)
3.95
(0.156)
4
1.270 BSC
(0.050)
1.27
(0.5)
7°
* 5.080 ±0.127
(0.200 ±0.005)
3.175 ±0.127
(0.125 ±0.005)
7.49
(0.295)
45° X
0.432
(0.017)
0 ~ 7°
0.228 ±0.025
(0.009 ±0.001)
1.524
(0.060)
5.207 ±0.254 (0.205 ±0.010)
Dimensions in Millimeters (Inches).
Note: Floating lead protrusion is 0.15 mm (6 mils) max.
Lead coplanarity = 0.10 mm (0.004 inches) max.
Option number 500 not marked.
0.305 MIN.
(0.012)
Broadcom
-5-
0.203 ±0.102
(0.008 ±0.004)
ACPL-M21L, ACPL-021L, ACPL-024L, ACPL-W21L, ACPL-K24L
Data Sheet
Figure 4 ACPL-W21L Stretched SO-6 Package
TOTAL PACKAGE WIDTH
(INCLUSIVE OF MOLD FLASH)
4.834 ±0.254
(0.190 ±0.010)
LAND PATTERN RECOMMENDATION
1.27 (0.050) BSG
12.65 (0.498)
6
5
4
ROHS-COMPLIANCE
INDICATOR
0.76 (0.030)
NNNN
YYWW
EEE
PART NUMBER
DATE CODE
Lot ID
1.91 (0.075)
1
2
3
0.381 ±0.127
(0.015 ±0.005)
7°
+0.127
0
+0.005
0.268 –0.000
6.807
(
0.45 (0.018)
7°
)
45°
3.180 ±0.127
(0.125 ±0.005)
0.20 ±0.10
(0.008 ±0.004)
Dimensions in Millimeters (Inches).
Lead coplanarity = 0.1 mm (0.004 inches).
1.590 ±0.127
(0.063 ±0.005)
0.750 ±0.250
(0.0295 ±0.010)
11.50 ±0.250
(0.453 ±0.010)
Broadcom
-6-
ACPL-M21L, ACPL-021L, ACPL-024L, ACPL-W21L, ACPL-K24L
Data Sheet
Figure 5 ACPL-K24L Stretched SO-8 Package Width
TOTAL PACKAGE WIDTH
(INCLUSIVE OF MOLD FLASH)
6.100 ±0.250
(0.240 ±0.010)
8
7
6
LAND PATTERN RECOMMENDATION
5
PART NUMBER
ROHS-COMPLIANCE
INDICATOR
DATE CODE
NNNN
12.650
(0.5)
Lot ID
YYWW
EEE
6.807 ±0.127
(0.268 ±0.005)
1.905
(0.1)
1
2
3
4
0.450
(0.018)
7°
1.590 ±0.127
(0.063 ±0.005)
7°
45°
3.180 ±0.127
(0.125 ±0.005)
0.381 ±0.13
(0.015 ±0.005)
1.270 (0.050) BSG
0.254 ±0.100
(0.010 ±0.004)
0.750 ±0.250
(0.0295 ±0.010)
11.5 ±0.250
(0.453 ±0.010)
Dimensions in Millimeters (Inches).
Lead coplanarity = 0.1 mm (0.004 inches).
Solder Reflow Profile
Recommended reflow condition as per JEDEC Standard, J-STD-020 (latest revision). Non-Halide Flux should be used.
Regulatory Information
The ACPL-M21L/024L/021L/W21L/K24L is approved by the following organizations.
UL
Approval under UL 1577, component recognition program up to VISO = 3750 VRMS for ACPL-M21L/024L/021L and
VISO = 5000 VRMS for ACPL-W21L/K24L.
CSA
Approval under CSA Component Acceptance Notice #5.
IEC/EN 60747-5-5
(Option 060 and 560 only).
Broadcom
-7-
ACPL-M21L, ACPL-021L, ACPL-024L, ACPL-W21L, ACPL-K24L
Data Sheet
Table 3 Insulation and Safety Related Specifications
Parameter
Symbol ACPL-M21L
ACPL-024L
ACPL-021L
ACPL-W21
ACPL-K24L
Units
Conditions
Minimum External Air Gap
(Clearance)
L(101)
5
4.9
8
mm
Measured from input terminals to output
terminals, shortest distance through air.
Minimum External Tracking
(Creepage)
L(102)
5
4.8
8
mm
Measured from input terminals to output
terminals, shortest distance path along body.
0.08
0.08
0.08
mm
Through insulation distance conductor to
conductor, usually the straight line distance
thickness between the emitter and detector.
175
175
175
V
DIN IEC 112/VDE 0303 Part 1
IIIa
IIIa
IIIa
Minimum Internal Plastic Gap
(Internal Clearance)
Tracking Resistance
(Comparative Tracking Index)
CTI
Isolation Group
Material Group (DIN VDE 0110, 1/89, Table 1)
Table 4 IEC/EN60747-5-5 Insulation Characteristicsa (Option 060 and 560 Only)
Characteristic
Description
Symbol
ACPL-M21L/
024L/021L
Unit
ACPL-W21L/
K24L
Installation classification per DIN VDE 0110/39, Table 1
for rated mains voltage ≤ 150 Vrms
for rated mains voltage ≤ 300 Vrms
for rated mains voltage ≤ 600 Vrms
for rated mains voltage ≤ 1000 Vrms
I – IV
I – III
I – II
I – IV
I – IV
I – III
I – III
Climatic Classification
55/105/21
55/105/21
Pollution Degree (DIN VDE 0110/39)
2
2
Maximum Working Insulation Voltage
VIORM
567
1140
Vpeak
Input to Output Test Voltage, Method ba
VPR
1063
2137
Vpeak
Input to Output Test Voltage, Method aa
VIORM × 1.6 = VPR, Type and Sample Test, tm = 10 sec, Partial discharge < 5 pC
VPR
896
1824
Vpeak
Highest Allowable Overvoltage (Transient Overvoltage tini = 60 sec)
VIOTM
6000
8000
Vpeak
Safety-limiting values – maximum values allowed in the event of a failure.
Case Temperature
Input Currentb
Output Powerb
TS
150
IS, INPUT
150
PS, OUTPUT 600
175
230
600
°C
mA
mW
Insulation Resistance at TS, VIO = 500 V
RS
>109

VIORM × 1.875 = VPR, 100% Production Test with tm = 1 sec, Partial discharge < 5 pC
>109
a.
Refer to the optocoupler section of the Isolation and Control Components Designer’s Catalog, under Product Safety Regulations section, (IEC/EN 60747-5-5)
for a detailed description of Method a and Method b partial discharge test profiles.
b.
Refer to the following figure for dependence of PS and IS on ambient temperature.
NOTE
These optocouplers are suitable for "safe electrical isolation" only within the safety limit data. Maintenance of the
safety limit data shall be ensured by means of protective circuits.
Broadcom
-8-
ACPL-M21L, ACPL-021L, ACPL-024L, ACPL-W21L, ACPL-K24L
Data Sheet
Table 5 Absolute Maximum Ratings
Parameter
Symbol
Min.
Max.
Units
Condition
Storage Temperature
TS
–55
125
°C
Operating Temperature
TA
–40
105
°C
Reverse Input Voltage
VR
5
V
Supply Voltage
VDD
6.5
V
Average Forward Input Current
IF
8
mA
Peak Forward Input Current
IF(TRAN)
1
A
≤1 μs pulse width, <300 pulses per second
Output Current
IO
10
mA
At max VDD
Output Voltage
VO
VDD +0.5
V
Lead Solder Temperature
TLS
Solder Reflow Temperature Profile
See Package Outline Drawings
–0.5
260°C for 10 sec., 1.6 mm below seating plane
Table 6 Recommended Operating Conditions
Parameter
Symbol
Min.
Max.
Units
Operating Temperature
TA
–40
105
°C
Input Current, Low Level
IFL
0
250
μA
Input Current, High Level
IFH
1.6a
6
mA
Power Supply Voltage
VDD
2.7
5.5
V
Forward Input Voltage
VF (OFF)
0.8
V
a.
The initial switching threshold is 1.6 mA or less. It is recommended that 2.2 mA be used to permit at
least a 20% LED degradation guardband.
Broadcom
-9-
ACPL-M21L, ACPL-021L, ACPL-024L, ACPL-W21L, ACPL-K24L
Data Sheet
Electrical Specifications (DC)
Over recommended temperature (TA = –40°C to +105°C) and supply voltage (2.7V ≤ VDD ≤ 5.5V). All typical specifications are at
VDD = 2.7V, TA = 25°C, unless otherwise specified.
Table 7 Electrical Specifications (DC)
Parameter
Symbol
Channel
Min.
Input Forward Voltage
VF
Input Reverse Breakdown Voltage
BVR
8
Logic High Output Voltage
VOH
Logic Low Output Voltage
ITH
Logic Low Output Supply Current
IDDL
Logic High Output Supply Current
Input Capacitance
1.5
IDDH
Max.
2.0
Units
Test Conditions
V
IF = 2.2 mA (Figure 6 and
Figure 7)
V
IR = 10 μA
VDD – 0.1
V
IF = 2.2 mA, IO = –20 μA
VDD – 1.0
V
IF = 2.2 mA, IO = –3.2 mA
(Figure 8)
11
VOL
Input Threshold Current
Typ.
0.001
0.1
V
IF = 0 mA, IO = 20 μA
0.15
0.4
V
IF = 0 mA, IO = 3.2 mA
(Figure 9)
0.5
1.4
mA
Figure 10
Single
0.6
1.1
mA
Dual
1.2
2.2
VF = 0V, VDD = 5.5V,
IO = Open (Figure 11)
mA
IF = 2.2 mA, VDD = 5.5V,
IO = Open (Figure 12)
77
pF
f = 1 MHz, VF = 0V
–1.9
mV/°C
IF = 2.2 mA
Single
0.5
1.1
Dual
1.0
2.2
CIN
Input Diode Temperature Coefficient VF/TA
Broadcom
- 10 -
ACPL-M21L, ACPL-021L, ACPL-024L, ACPL-W21L, ACPL-K24L
Data Sheet
Switching Specifications (AC)
Over recommended temperature (TA = –40°C to +105°C), supply voltage (2.7V ≤ VDD ≤ 5.5V). All typical specifications are at
VDD = 2.7V, TA = 25°C.
Table 8 Switching Specifications (AC)
Parameter
Symbol
Min.
Typ.
Max.
Units
Test Conditions
Propagation Delay Time to Logic Low tPHL
Outputa
130
250
ns
IF=2.2 mA, CL=15 pF (Figure 13,
Figure 17), CMOS Signal Levels
Propagation Delay Time to Logic
High Outputa
tPLH
115
250
ns
IF=2.2 mA, CL=15 pF (Figure 14,
Figure 17), CMOS Signal Levels
Pulse Width Distortionb
PWD
200
ns
CMOS Signal Levels
Propagation Delay Skewc
tPSK
220
ns
Output Rise Time (10% to 90%)
tR
11
ns
IF = 2.2 mA, CL= 15 pF,
CMOS Signal Levels.
Output Fall Time (90% to 10%)
tF
11
ns
IF = 2.2 mA, CL= 15 pF,
CMOS Signal Levels.
Static Common Mode Transient
Immunity at Logic High Outputd
|CMH|
25
40
kV/μs
VCM = 1000V, TA = 25°C, IF = 2.2 mA,
CL= 15 pF, VI = 5V, (RT = 1.6 k) or
VI = 3.3V, (RT = 840 ),
CMOS Signal Levels, Figure 18
Static Common Mode Transient
Immunity at Logic Low Outpute
|CML|
25
40
kV/μs
VCM = 1000V, TA = 25°C, IF = 0 mA,
CL= 15 pF, VI = 0V, (RT = 1.6 k) or
(RT = 840), CMOS Signal Levels,
Figure 18
a.
tPHL propagation delay is measured from the 50% (Vin or IF) on the falling edge of the input pulse to the 50% VDD of the falling edge of the VO signal. tPLH
propagation delay is measured from the 50% (Vin or IF) on the rising edge of the input pulse to the 50% level of the rising edge of the VO signal.
b.
PWD is defined as |tPHL – tPLH|.
c.
tPSK is equal to the magnitude of the worst case difference in tPHL and/or tPLH that will be seen between units at any given temperature within the
recommended operating conditions.
d.
CMH is the maximum tolerable rate of rise of the common mode voltage to assure that the output will remain in a high logic state.
e.
CML is the maximum tolerable rate of rise of the common mode voltage to assure that the output will remain in a low logic state.
NOTE
Use of a 0.1 μF bypass capacitor connected between VDD and ground is recommended.
Package Characteristics
All typical at TA = 25°C.
Table 9 Package Characteristics
Parameter
Symbol
Input-Output Insulation
VISO
Input-Output Resistance
RI-O
Input-Output Capacitance
CI-O
Part Number
Min.
Typ.
ACPL-M21L/024L/021L 3750
ACPL-W21L/K24L
Max.
Units
Test Conditions
Vrms
RH < 50% for 1 min., TA = 25°C
1012

VI-O = 500 V
0.6
pF
f = 1 MHz, TA = 25°C
5000
Broadcom
- 11 -
ACPL-M21L, ACPL-021L, ACPL-024L, ACPL-W21L, ACPL-K24L
Data Sheet
Figure 6 Forward Voltage vs. Temperature
Figure 7 Forward Current vs. Forward Voltage
100
1.7
IF - FORWARD CURRENT (mA)
VF - FORWARD VOLTAGE (V)
1.8
1.6
1.5
1.4
1.3
1.2
–40
0
20
40
60
TA - TEMPERATURE (°C)
80
0.1
1.3
100
1.5
1.6
VF - FORWARD VOLTAGE (V)
1.7
1.8
0.25
6
VOL - LOW LEVEL OUTPUT VOLTAGE (V)
IO = –3.2 mA
5
4
3
2
1
0
1
2
3
4
5
VDD - SUPPLY VOLTAGE (V)
6
0.2
0.15
0.1
0.05
–20
0
20
40
60
TA - TEMPERATURE (°C)
80
100
Figure 11 Logic Low Output Supply Current vs. Temperature
0.7
0.9
IDDL - LOGIC LOW OUTPUT SUPPLY
CURRENT (mA)
ITH_3.3V
ITH_5.0V
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
VDD = 3.3V
VF = 0V
IO = 3.2 mA
0
–40
7
Figure 10 Input Threshold Current vs. Temperature
Ith - INPUT THRESHOLD CURRENT (mA)
1.4
Figure 9 Logic Low Output Voltage vs. Temperature
7
VOH - HIGH LEVEL OUTPUT VOLTAGE (V)
1
0.01
–20
Figure 8 Logic High Output Voltage vs. Supply Voltage
0
10
0.6
0.5
0.4
0.3
0.2
IDDL @ 3.3V
IDDL @ 5.0V
0.1
0
–40
–20
0
20
40
60
TA - TEMPERATURE (°C)
80
100
–40
Broadcom
- 12 -
–20
0
20
40
60
TA - TEMPERATURE (°C)
80
100
ACPL-M21L, ACPL-021L, ACPL-024L, ACPL-W21L, ACPL-K24L
Data Sheet
Figure 12 Logic High Output Supply Current vs. Temperature
Figure 13 Propagation Delay, tPHL vs. Temperature
0.6
Tp - PROPAGATION DELAY (ns)
IDDH - LOGIC HIGH OUTPUT SUPPLY
CURRENT (mA)
0.7
0.5
0.4
0.3
0.2
IDDH_3.3V
IDDH_5.0V
0.1
0
–40
–20
0
20
40
60
TA - TEMPERATURE (°C)
80
100
150
140
130
120
110
100
90
80
70
60
50
–40
IF = 1.6 mA, 2.2 mA, and 6 mA
VDD = 2.7V
–20
0
20
40
60
TA - TEMPERATURE (°C)
80
100
TPLH - PROPAGATION DELAY (ns)
Figure 14 Propagation Delay, tPLH vs. Temperature
150
140
130
120
110
100
90
80
70
60 VDD = 2.7V
50
–40
–20
IF = 1.6 mA
IF = 2.2 mA
IF = 6.0 mA
0
20
40
60
TA - TEMPERATURE (°C)
80
100
Figure 15 Output Voltage vs. Input Current @ Vdd = 3.3V
Figure 16 Output Voltage vs. Input Current @ Vdd = 5V
6
4
5
Vo - OUTPUT VOLTAGE (V)
Vo - OUTPUT VOLTAGE (V)
3.5
3
2.5
2
1.5
1
3
2
1
0.5
0
4
VDD = 5.0V
VDD = 3.3V
0
0
0.0001 0.0002 0.0003 0.0004 0.0005 0.0006 0.0007 0.0008
IF - INPUT CURRENT (A)
Broadcom
- 13 -
0
0.0001 0.0002 0.0003 0.0004 0.0005 0.0006 0.0007 0.0008
IF - INPUT CURRENT (A)
ACPL-M21L, ACPL-021L, ACPL-024L, ACPL-W21L, ACPL-K24L
Data Sheet
Figure 17 Circuit for tPLH, tPHL, tr, tf
PULSE GEN
tr = tf = 11 ns
f = 1.0 MHz
50% DUTY
CYCLE
OUTPUT VO
MONITORING
NODE
Vdd
ACPL-M21L
IF
PULSE GEN
tr = tf = 11 ns
f = 1.0 MHz
50% DUTY
CYCLE
ACPL-W21L
IF
6
1
*
5
CL = 15 pF
INPUT
MONITORING
NODE
3
Shield
4
PULSE GEN
tr = tf = 11 ns
f = 1.0 MHz
50% DUTY
CYCLE
IF
INPUT
MONITORING
NODE
6
2
5
3
4
*
Shield
Rm
PULSE GEN
tr = tf = 11 ns
f = 1.0 MHz
50% DUTY
CYCLE
OUTPUT VO
MONITORING
NODE
Vdd
Vdd
ACPL-021L
8
2
7
4
6
Shield
OUTPUT VO
MONITORING
NODE
ACPL-024L/K24L
1
3
Rm
1
CL = 15 pF
INPUT
MONITORING
NODE
Rm
OUTPUT VO
MONITORING
NODE
Vdd
IF
*
1
8
2
7
3
6
*
CL = 15 pF
INPUT
MONITORING
NODE
5
Rm
IF (ON)
50% IF (ON)
0 mA
INPUT IF
tPLH
tPHL
VOH
50%
VOL
OUTPUT VO
* 0.1 μF BYPASS — SEE NOTE 6 above.[6]
Broadcom
- 14 -
4
Shield
5
CL = 15 pF
ACPL-M21L, ACPL-021L, ACPL-024L, ACPL-W21L, ACPL-K24L
Data Sheet
ACPL-M21L, ACPL-021L, ACPL-024L, ACPL-W21L, ACPL-K24L:
VI = 3.3V: R1 = 510 ±1%, R2 = 330 ±1%
VI = 5.0V: R1 = 1 k ±1%, R2 = 600 ±1%
RT = R1 + R2 ≈ R1 / R2 ≈ 1.5
Figure 18 Recommended Printed Circuit Board Layout and Input Current Limiting Resistor Selection
VI
R1 IF
1
VDD
6
VI
1
Vo
4
GND2
3
GND1
1
4
VI
R1 I F
GND2
1
8
2
7
VDD
R2
2
3
7
4
Vo
GND1
C
6
5
NC
GND2
GND2
VI
R2
R1 IF
ACPL-021L
3
NNNN
YYWW
R2
VDD
8
NNNN
YYWW
GND2
Vo
ACPL-W21L
ACPL-M21L
VI
C
5
R2
3
R1 IF
VDD
6
NNNN
YYWW
NNNN
YYWW
C
5
R2
GND1
R1 IF
4
Broadcom
- 15 -
6
5
ACPL-024L/K24L
C = 0.1 μF
Vo1
C
Vo2
GND2
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Copyright © 2016–2017 by Broadcom. All Rights Reserved.
The term "Broadcom" refers to Broadcom Limited and/or its subsidiaries. For
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Information furnished by Broadcom is believed to be accurate and reliable.
However, Broadcom does not assume any liability arising out of the application
or use of this information, nor the application or use of any product or circuit
described herein, neither does it convey any license under its patent rights nor
the rights of others.
AV02-3462EN – March 10, 2017
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