Datasheet
ISL3232E, ISL4221E, ISL4223E
QFN Packaged, ±15kV ESD Protected, +2.7V to +5.5V, 150nA, 250kbps,
RS-232 Transmitters/Receivers
The ISL3232E, ISL4221E, and ISL4223E devices are
2.7V to 5.5V powered RS-232 transmitters/receivers
that meet ElA/TIA-232 and V.28/V.24 specifications,
even at VCC = 3.0V. They provide ±15kV ESD
protection (IEC61000-4-2 Air Gap and Human Body
Model) on transmitter outputs and receiver inputs
(RS-232 pins). Targeted applications are PDAs,
Palmtops, and hand-held products where the low
operational power consumption and even lower
standby power consumption are critical. Efficient
on-chip charge pumps, coupled with manual and
automatic powerdown functions, reduce the standby
supply current to a 150nA trickle. The 5mmx5mm
Quad Flat No-Lead (QFN) packaging and the use of
small, low value capacitors ensure board space
savings. Data rates greater than 250kbps are ensured
at worst case load conditions.
The ISL4221E is a 1 driver, 1 receiver device and the
ISL3232E and ISL4223E are 2 driver, 2 receiver
devices that, coupled with the 5mmx5mm QFN
package, provide the industry’s smallest, lowest
power serial port suitable for PDAs, and hand-held
applications. The 5mmx5mm QFN requires 40% less
board area than a 20 Ld TSSOP, and is nearly 20%
thinner.
The ISL4221E and ISL4223E versions feature an
automatic powerdown function that powers down the
on-chip power supply and driver circuits. Automatic
powerdown occurs when an attached peripheral
device is shut off or the RS-232 cable is removed, and
conserves system power automatically without
changes to the hardware or operating system. The
ISL4221E and ISL4223E power back up automatically
when a valid RS-232 voltage is applied to any
receiver input.
Table 1 summarizes the features of the IC’s and
AN9863 summarizes the features of each device
comprising the 3V RS-232 family.
Table 1.
Features
• Available in near chip scale QFN (5mmx5mm)
package, which is 40% smaller than a 20 Ld
TSSOP
• ESD protection for RS-232 I/O pins to ±15kV
(IEC61000)
• Meets EIA/TIA-232 and V.28/V.24 specifications at
3V
• RS-232 compatible with VCC = 2.7V
• On-chip voltage converters require only four
external 0.1µF capacitors
• Manual and automatic powerdown features (except
ISL3232E)
• Receiver hysteresis for improved noise immunity
• Assured minimum data rate: 250kbps
• Wide power supply range: single +2.7V to +5.5V
• Low supply current in powerdown state: 150nA
• Pb-free (RoHS compliant)
Applications
• Any space-constrained system requiring RS-232
ports
○ Battery powered and portable equipment
○ Hand-held products (GPS receivers, bar code
scanners, etc.)
○ PDAs and Palmtops, data cables
○ Cellular/mobile phones, digital cameras
Related Literature
For a full list of related documents, visit our website:
• ISL3232E, ISL4221E, and ISL4223E device pages
Summary of Features
Part Number
Number Number
of Tx.
of Rx.
QFN Pkg.
Available?
Data Rate (kbps)
Rx. Enable
Function?
Manual
Powerdown?
Automatic Powerdown
Function?
ISL4221E
1
1
Yes
250
Yes
Yes
Yes
ISL3232E
2
2
Yes
250
No
No
No
ISL4223E
2
2
Yes
250
Yes
Yes
Yes
FN6045 Rev.7.00
May.2.19
Page 1 of 24
ISL3232E, ISL4221E, ISL4223E
Contents
1.
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.1
1.2
1.3
1.4
2.
Typical Operating Circuits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Ordering Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Pin Configurations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Pin Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3
4
5
6
Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2.1
2.2
2.3
2.4
Absolute Maximum Ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Thermal Information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Recommended Operating Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Electrical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7
7
7
7
3.
Typical Performance Curves. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
4.
Application Information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
4.1
4.1.1
4.2
4.3
4.4
4.5
4.5.1
4.5.2
4.5.3
4.6
4.7
4.8
4.9
4.10
4.11
5.
Charge Pump. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Charge Pump Abs Max Ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Transmitters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Receivers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Low Power Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Powerdown Functionality (Excluding ISL3232E) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Software Controlled (Manual) Powerdown . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Automatic Powerdown (Excluding ISL3232E) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
INVALID Output (Excluding ISL3232E) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Capacitor Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power Supply Decoupling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Transmitter Outputs when Exiting Powerdown . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operation Down to 2.7V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
High Data Rates . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Interconnection with 3V and 5V Logic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
11
11
12
13
13
14
14
15
15
16
16
16
17
17
18
±15kV ESD Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
5.1
5.2
5.3
5.4
Human Body Model (HBM) Testing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
IEC61000-4-2 Testing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Air-Gap Discharge Test Method. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Contact Discharge Test Method. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
19
19
19
19
6.
Die Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
7.
Revision History. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
8.
Package Outline Drawings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
FN6045 Rev.7.00
May.2.19
Page 2 of 24
ISL3232E, ISL4221E, ISL4223E
1.
1.1
1. Overview
Overview
Typical Operating Circuits
ISL3232E
+3.3V
+
C1
0.1µF
+
C2
0.1µF
+
15
1
2
T1IN
T2IN
TTL/CMOS
Logic Levels
0.1µF
R1OUT
3
C1+
14
VCC
C1C2+
V-
C2T1
9
8
16
C
+ 3
0.1µF
4
C4
0.1µF
+
12
T2
5
10
11
5kΩ
R1
R2OUT
V+
7
6
5kΩ
R2
T1OUT
T2OUT
R1IN
RS-232
Levels
R2IN
GND
13
ISL4221E
+3.3V
C1
0.1µF
C2
0.1µF
TTL/CMOS
Logic
Levels
T1IN
R1OUT
+
0.1µF
16
+ C1+
2
C13
+ C2+
4
C2-
13
VCC
V+
V- 5
T1
9
1
11
7
6
+ C3
0.1µF
C4
+ 0.1µF
T1OUT
R1IN
RS-232
Levels
5kΩ
R1
15 EN
FORCEOFF
10
FORCEON
GND
INVALID
14
8
VCC
To Power
Control Logic
12
FN6045 Rev.7.00
May.2.19
Page 3 of 24
ISL3232E, ISL4221E, ISL4223E
1. Overview
ISL4223E
+3.3V
C1
0.1µF
+
C2
0.1µF
+
T1IN
T2IN
TTL/CMOS
Logic Levels
+
R1OUT
0.1µF
20
17
C1+
VCC
2
V+
C13
C2+
4
C2-
VT1
11
R1
5kΩ
R2
5kΩ
7
EN
FORCEOFF
12
C4
0.1µF
+
14
8
19
5
6
13
R2OUT
C
+ 3
0.1µF
15
T2
10
1
INVALID
FORCEON
18
9
T1OUT
T2OUT
R1IN
RS-232
Levels
R2IN
VCC
To Power
Control Logic
GND
16
1.2
Ordering Information
Part Number
(Notes 2, 3)
Part Marking
Temp. Range (°C)
Tape and Reel
(Units) (Note 1)
Package
(RoHS Compliant)
Pkg. Dwg. #
ISL3232EIRZ
ISL3232 EIRZ
-40 to +85
-
16 Ld QFN
L16.5x5B
ISL3232EIRZ-T
ISL3232 EIRZ
-40 to +85
6k
16 Ld QFN
L16.5x5B
ISL3232EIRZ-T7A
ISL3232 EIRZ
-40 to +85
250
16 Ld QFN
L16.5x5B
ISL4221EIRZ
ISL4221 EIRZ
-40 to +85
-
16 Ld QFN
L16.5x5B
ISL4221EIRZ-T
ISL4221 EIRZ
-40 to +85
6k
16 Ld QFN
L16.5x5B
ISL4223EIRZ
ISL4223 EIRZ
-40 to +85
-
20 Ld QFN
L20.5x5
ISL4223EIRZ-T
ISL4223 EIRZ
-40 to +85
6k
20 Ld QFN
L20.5x5
ISL4223EIRZ-TK
ISL4223 EIRZ
-40 to +85
1k
20 Ld QFN
L20.5x5
ISL4223EIRZ-T7A
ISL4223 EIRZ
-40 to +85
250
20 Ld QFN
L20.5x5
Notes:
1. See TB347 for details about reel specifications.
2. These Pb-free plastic packaged products employ special Pb-free material sets, molding compounds/die attach materials, and 100% matte
tin plate plus anneal (e3 termination finish, which is RoHS compliant and compatible with both SnPb and Pb-free soldering operations).
Pb-free products are MSL classified at Pb-free peak reflow temperatures that meet or exceed the Pb-free requirements of IPC/JEDEC
J-STD-020.
3. For Moisture Sensitivity Level (MSL), see the ISL3232E, ISL4221E, and ISL4223E device pages. For more information about MSL, see
TB363.
FN6045 Rev.7.00
May.2.19
Page 4 of 24
ISL3232E, ISL4221E, ISL4223E
1.3
1. Overview
Pin Configurations
ISL4221E
(16 Ld QFN)
Top View
12 T1OUT
C2+
2
11 R1IN
C2-
3
10 R1OUT
V-
4
9
6
7
8
R2IN
R2OUT
T2IN
V+
1
C1-
2
16
15
14
13
12 GND
11 T1OUT
PD
T1IN
C2+
3
10 FORCEON
C2-
4
9
5
6
7
8
INVALID
5
T2OUT
PD
VCC
1
FORCEOFF
C1-
R1OUT
13
EN
GND
14
R1IN
VCC
15
C1+
C1+
16
V-
V+
ISL3232E
(16 Ld QFN)
Top View
T1IN
FN6045 Rev.7.00
May.2.19
C1+
EN
FORCEOFF
VCC
GND
ISL4223E
(20 Ld QFN)
Top View
20
19
18
17
16
V+
1
15 T1OUT
C1-
2
14 R1IN
C2+
3
C2-
4
12 FORCEON
V-
5
11 T1IN
13 R1OUT
6
7
8
9
10
T2OUT
R2IN
R2OUT
INVALID
T2IN
PD
Page 5 of 24
ISL3232E, ISL4221E, ISL4223E
1.4
1. Overview
Pin Descriptions
Pin Name
VCC
Function
System power supply input (2.7V to 5.5V).
V+
Internally generated positive transmitter supply (+5.5V).
V-
Internally generated negative transmitter supply (-5.5V).
GND
Ground connection. This is also the potential of the thermal pad (PD).
C1+
External capacitor (voltage doubler) is connected to this lead.
C1-
External capacitor (voltage doubler) is connected to this lead.
C2+
External capacitor (voltage inverter) is connected to this lead.
C2-
External capacitor (voltage inverter) is connected to this lead.
TxIN
TTL/CMOS compatible transmitter Inputs.
TxOUT
RxIN
±15kV ESD protected, RS-232 level (nominally ±5.5V) transmitter outputs.
±15kV ESD protected, RS-232 compatible receiver inputs.
RxOUT
TTL/CMOS level receiver outputs.
INVALID
Active low output that indicates if no valid RS-232 levels are present on any receiver input.
FORCEOFF Active low to shut down transmitters and on-chip power supply, which overrides any automatic circuitry and FORCEON (see
Table 5 on page 14).
FORCEON
Active high input to override automatic powerdown circuitry, which keeps transmitters active (FORCEOFF must be high).
EN
Active low receiver enable control.
PD
Exposed thermal pad. Connect to GND.
FN6045 Rev.7.00
May.2.19
Page 6 of 24
ISL3232E, ISL4221E, ISL4223E
2.
2. Specifications
Specifications
2.1
Absolute Maximum Ratings
Parameter
Minimum
Maximum
Unit
VCC to GND
-0.3
6
V
V+ to GND
-0.3
7
V
V- to GND
+0.3
-7
V
14
V
6
V
±25
V
±13.2
V
VCC +0.3
V
V+ to VInput Voltages
TIN, FORCEOFF, FORCEON, EN
-0.3
RIN
Output Voltages
TOUT
ROUT, INVALID
-0.3
Short-Circuit Duration
TOUT
Continuous
ESD Rating
(See “ESD Performance” on page 9)
CAUTION: Do not operate at or near the maximum ratings listed for extended periods of time. Exposure to such conditions can adversely
impact product reliability and result in failures not covered by warranty.
2.2
Thermal Information
Thermal Resistance (Typical, Notes 4, 5)
θJA (°C/W)
θJC (°C/W)
16 Ld QFN Package
35
4.3
20 Ld QFN Package
32
4.3
Notes:
4. θJA is measured in free air with the component mounted on a high-effective thermal conductivity test board with “direct attach” features.
See TB379.
5. For θJC, the “case temp” location is the center of the exposed metal pad on the package underside.
Parameter
Minimum
Maximum Junction Temperature (Plastic Package)
Maximum Storage Temperature Range
-65
Pb-Free Reflow Profile
2.3
Unit
+150
°C
+150
°C
see TB493
Recommended Operating Conditions
Parameter
Temperature Range
2.4
Maximum
Minimum
Maximum
Unit
-40
+85
°C
Electrical Specifications
Test conditions: VCC = 3V to 5.5V, C1 through C4 = 0.1µF; unless otherwise specified. Typicals are at TA = +25°C
Parameter
Test Conditions
Temp
Min
(°C) (Note 7)
Typ
Max
(Note 7) Unit
DC Characteristics
Supply Current, Automatic
Powerdown
FN6045 Rev.7.00
May.2.19
All RIN open, FORCEON = GND, FORCEOFF = VCC
(except ISL3232E)
25
-
0.15
1
µA
Page 7 of 24
ISL3232E, ISL4221E, ISL4223E
2. Specifications
Test conditions: VCC = 3V to 5.5V, C1 through C4 = 0.1µF; unless otherwise specified. Typicals are at TA = +25°C (Continued)
Parameter
Test Conditions
Temp
Min
(°C) (Note 7)
Typ
Max
(Note 7) Unit
Supply Current, Powerdown
FORCEOFF = GND (except ISL3232E)
25
-
0.15
1
µA
Supply Current, Automatic
Powerdown Disabled
All outputs unloaded,
VCC = 3.15V
FORCEON = FORCEOFF = VCC
25
-
0.3
1.0
mA
Full
-
-
0.8
V
VCC = 3.3V
Full
2.0
-
-
V
VCC = 5.0V
Full
2.4
-
-
V
Logic and Transmitter Inputs and Receiver Outputs
Input Logic Threshold Low
TIN, FORCEON, FORCEOFF, EN
Input Logic Threshold High
TIN, FORCEON, FORCEOFF,
EN
Input Leakage Current
TIN, FORCEON, FORCEOFF, EN
Full
-
±0.01
±1.0
µA
Output Leakage Current
EN = VCC (except ISL3232E)
Full
-
±0.05
±10
µA
Output Voltage Low
IOUT = 1.6mA
Full
-
-
0.4
V
Output Voltage High
IOUT = -1.0mA
Full
-
V
VCC - 0.6 VCC - 0.1
Automatic Powerdown (FORCEON = GND, FORCEOFF = VCC, except ISL3232E)
Receiver Input Thresholds to Enable
Transmitters
ISL4221E and ISL4223E powers up (see Figure 10)
Full
-2.7
-
2.7
V
Receiver Input Thresholds to Disable ISL4221E and ISL4223E powers down (see Figure 10)
Transmitters
Full
-0.3
-
0.3
V
INVALID Output Voltage Low
IOUT = 1.6mA
Full
-
-
0.4
V
INVALID Output Voltage High
IOUT = -1.0mA
Full
VCC - 0.6
-
-
V
Receiver Threshold to Transmitters
Enabled Delay (tWU)
25
-
100
-
µs
Receiver Positive or Negative
Threshold to INVALID High Delay
(tINVH)
25
-
1
-
µs
Receiver Positive or Negative
Threshold to INVALID Low Delay
(tINVL)
25
-
30
-
µs
25
-25
-
25
V
VCC = 3.3V
25
0.6
1.2
-
V
VCC = 5.0V
25
0.8
1.5
-
V
VCC = 3.3V
25
-
1.5
2.4
V
VCC = 5.0V
25
-
1.8
2.4
V
Input Hysteresis
25
-
0.5
-
V
Input Resistance
25
3
5
7
kΩ
Receiver Inputs
Input Voltage Range
Input Threshold Low
Input Threshold High
Transmitter Outputs
Output Voltage Swing
All transmitter outputs loaded with 3kΩ to ground
Full
±5.0
±5.4
-
V
Output Resistance
VCC = V+ = V- = 0V, transmitter output = ±2V
Full
300
10M
-
Ω
Full
-
±35
±60
mA
VOUT = ±12V, VCC = 0V, or VCC = 3V to 5.5V, with
automatic powerdown or FORCEOFF = GND
Full
-
-
±25
µA
Maximum Data Rate
RL = 3kΩ, CL = 1000pF, one transmitter switching
Full
250
500
-
kbps
Receiver Propagation Delay
Receiver input to receiver
output, CL = 150pF
tPHL
25
-
0.15
-
µs
tPLH
25
-
0.15
-
µs
Output Short-Circuit Current
Output Leakage Current
Timing Characteristics
FN6045 Rev.7.00
May.2.19
Page 8 of 24
ISL3232E, ISL4221E, ISL4223E
2. Specifications
Test conditions: VCC = 3V to 5.5V, C1 through C4 = 0.1µF; unless otherwise specified. Typicals are at TA = +25°C (Continued)
Parameter
Test Conditions
Temp
Min
(°C) (Note 7)
Typ
Max
(Note 7) Unit
Receiver Output Enable Time
Normal operation (except ISL3232E)
25
-
200
-
ns
Receiver Output Disable Time
Normal operation (except ISL3232E)
25
-
200
-
ns
Transmitter Skew
tPHL - tPLH (Note 6)
25
-
100
-
ns
Receiver Skew
tPHL - tPLH
25
-
50
-
ns
Transition Region Slew Rate
VCC = 3.3V, RL = 3kΩ to 7kΩ,
measured from 3V to -3V or -3V
to 3V
CL = 150pF to
2500pF
25
4
-
30
V/µs
CL = 150pF to
1000pF
25
6
-
30
V/µs
Human Body Model
25
-
±15
-
kV
IEC61000-4-2 Contact Discharge
25
-
±8
-
kV
IEC61000-4-2 Air Gap Discharge
25
-
±15
-
kV
Human Body Model
25
-
±2
-
kV
ESD Performance
RS-232 Pins (TOUT, RIN)
All Other Pins
Notes:
6. Transmitter skew is measured at the transmitter zero crossing points.
7. Parameters with Min and/or Max limits are 100% tested at +25°C, unless otherwise specified. Temperature limits established by
characterization and are not production tested.
FN6045 Rev.7.00
May.2.19
Page 9 of 24
ISL3232E, ISL4221E, ISL4223E
3.
3. Typical Performance Curves
Typical Performance Curves
VCC = 3.3V, TA = +25°C
25
VOUT+
4
20
2
Slew Rate (V/µs)
Transmitter Output Voltage (V)
6
1 Transmitter at 250kbps
Other Transmitters at 30kbps
0
-2
15
-SLEW
+SLEW
10
VOUT -
-4
-6
0
1000
2000
3000
4000
5
5000
0
1000
5000
ISL4223E/ISL3232E
40
35
30
25
20
120kbps
15
10
250kbps
35
250kbps
Supply Current (mA)
Supply Current (mA)
4000
45
ISL4221E
40
20kbps
30
25
120kbps
20
15
20kbps
10
5
0
3000
Figure 2. Slew Rate vs Load Capacitance
Figure 1. Transmitter Output Voltage vs Load
Capacitance
45
2000
Load Capacitance (pF)
Load Capacitance (pF)
5
0
1000
2000
3000
4000
0
5000
0
1000
Load Capacitance (pF)
Figure 3. Supply Current vs Load Capacitance when
Transmitting Data
3000
4000
5000
Figure 4. Supply Current vs Load Capacitance when
Transmitting Data
3.5
No Load
All Outputs Static
3.0
Supply Current (mA)
2000
Load Capacitance (pF)
2.5
2.0
1.5
1.0
0.5
0
2.5
3.0
3.5
4.0
4.5
5.0
5.5
6.0
Supply Voltage (V)
Figure 5. Supply Current vs Supply Voltage
FN6045 Rev.7.00
May.2.19
Page 10 of 24
ISL3232E, ISL4221E, ISL4223E
4.
4. Application Information
Application Information
The ISL4221E, ISL4223E, and ISL3232E operate from a single +2.7V to +5.5V supply, ensure a 250kbps
minimum data rate, require only four small external 0.1µF capacitors, feature low power consumption, and meet
all ElA RS-232C and V.28 specifications even with VCC = 3.0V.
4.1
Charge Pump
The ISL4221E, ISL4223E, and ISL3232E use regulated on-chip dual charge pumps as voltage doublers, and
voltage inverters to generate ±5.5V transmitter supplies from a VCC supply as low as 3.0V, which allows them to
maintain RS-232 compliant output levels over the ±10% tolerance range of 3.3V powered systems. The efficient
on-chip power supplies require only four small, external 0.1µF capacitors for the voltage doubler and inverter
functions. The charge pumps operate discontinuously (that is, they turn off as soon as the V+ and V- supplies are
pumped up to the nominal values), resulting in significant power savings.
4.1.1 Charge Pump Abs Max Ratings
These 3V to 5V RS-232 transceivers have been fully characterized for 3.0V to 3.6V operation and for critical
points at 4.5V to 5.5V operation. Furthermore, load conditions were favorable using static logic states only.
The specified maximum values for V+ and V- are +7V and -7V, respectively. These limits apply for VCC values set
to 3.0V and 3.6V (see Table 2). For VCC values set to 4.5V and 5.5V, the maximum values for V+ and V- can
approach +9V and -7V, respectively (Table 3 on page 12). The breakdown characteristics for V+ and V- were
measured with ±13V.
Table 2.
V+ and V- Values for VCC = 3.0V to 3.6V
V+ (V)
V- (V)
C1 (μF)
C2, C3, C4 (μF)
Load
T1IN
(Logic State)
0.1
0.1
Open
H
5.80
6.56
-5.60
-5.88
L
5.80
6.56
-5.60
-5.88
2.4kbps
5.80
6.56
-5.60
-5.88
H
5.88
6.60
-5.56
-5.92
L
5.76
6.36
-5.56
-5.76
2.4kbps
6.00
6.64
-5.64
-5.96
H
5.68
6.00
-5.60
-5.60
L
5.68
6.00
-5.60
-5.60
2.4kbps
5.68
6.00
-5.60
-5.60
H
5.76
6.08
-5.64
-5.64
L
5.68
6.04
-5.60
-5.60
2.4kbps
5.84
6.16
-5.64
-5.72
H
5.88
6.24
-5.60
-5.60
L
5.88
6.28
-5.60
-5.64
2.4kbps
5.80
6.20
-5.60
-5.60
H
5.88
6.44
-5.64
-5.72
L
5.88
6.04
-5.64
-5.64
2.4kbps
5.92
6.40
-5.64
-5.64
3kΩ // 1000pF
0.047
0.33
Open
3kΩ // 1000pF
1
1
Open
3kΩ // 1000pF
FN6045 Rev.7.00
May.2.19
VCC = 3.0V
VCC = 3.6V
VCC = 3.0V
VCC = 3.6V
Page 11 of 24
ISL3232E, ISL4221E, ISL4223E
Table 3.
4. Application Information
V+ and V- Values for VCC = 4.5V to 5.5V
V+ (V)
V- (V)
C1 (μF)
C2, C3, C4 (μF)
Load
T1IN
(Logic State)
0.1
0.1
Open
H
7.44
8.48
-6.16
-6.40
L
7.44
8.48
-6.16
-6.44
2.4kbps
7.44
8.48
-6.17
-6.44
H
7.76
8.88
-6.36
-6.72
L
7.08
8.00
-5.76
-5.76
2.4kbps
7.76
8.84
-6.40
-6.64
H
6.44
6.88
-5.80
-5.88
L
6.48
6.88
-5.84
-5.88
2.4kbps
6.44
6.88
-5.80
-5.88
H
6.64
7.28
-5.92
-6.04
L
6.24
6.60
-5.52
-5.52
2.4kbps
6.72
7.16
-5.92
-5.96
H
6.84
7.60
-5.76
-5.76
L
6.88
7.60
-5.76
-5.76
2.4kbps
6.92
7.56
-5.72
-5.76
H
7.28
8.16
-5.80
-5.92
L
6.44
6.84
-5.64
-6.84
2.4kbps
7.08
7.76
-5.80
-5.80
3kΩ // 1000pF
0.047
0.33
Open
3kΩ // 1000pF
1
1
Open
3kΩ // 1000pF
VCC = 4.5V
VCC = 5.5V
VCC = 4.5V
VCC = 5.5V
The resulting new maximum voltages at V+ and V- are listed in Table 4.
Table 4.
4.2
New Measured Withstanding Voltages
V+, V- to Ground
±13V
V+ to V-
20V
Transmitters
The transmitters are proprietary, low dropout, inverting drivers that translate TTL/CMOS inputs to EIA/TIA-232
output levels. The transmitters are coupled with the on-chip ±5.5V supplies to deliver true RS-232 levels across a
wide range of single supply system voltages.
All ISL4221E and ISL4223E transmitter outputs disable and assume a high impedance state when the device
enters the powerdown mode (see Table 5 on page 14). The outputs can be driven to ±12V when disabled.
The devices ensure a 250kbps data rate for full load conditions (3kΩ and 1000pF), VCC ≥ 3.0V, with one
transmitter operating at full speed. Under more typical conditions of VCC ≥ 3.3V, RL = 3kΩ, and CL = 250pF, one
transmitter easily operates at 900kbps.
Transmitter inputs float if they remain unconnected and can cause ICC increases. Connect unused inputs to GND
for best performance.
FN6045 Rev.7.00
May.2.19
Page 12 of 24
ISL3232E, ISL4221E, ISL4223E
4.3
4. Application Information
Receivers
The ISL4221E, ISL4223E, and ISL3232E contain standard inverting receivers, and the ISL4221E and ISL4223E
receivers tri-state using the EN control line. All the receivers convert RS-232 signals to CMOS output levels and
accept inputs up to ±25V while presenting the required 3kΩ to 7kΩ input impedance (see Figure 6) even if the
power is off (VCC = 0V). The receivers’ Schmitt trigger input stage uses hysteresis to increase noise immunity and
decrease errors due to slow input signal transitions.
Receivers driving a powered down UART must be disabled to prevent current flow through and possible damage
to the UART’s protection diodes (see Figures 7 and 8), which can be accomplished on the ISL4221E and
ISL4223E by driving the EN input high whenever the UART powers down. Figure 8 also shows that the INVALID
output can be used to determine when the UART should be powered down. When the RS-232 cable is
disconnected, INVALID switches low indicating that the UART is no longer needed. Reconnecting the cable drives
INVALID back high, indicating that the UART should be powered up.
VCC
VCC
Current
Flow
VCC
VOUT = VCC
Rx
Powered
Down
UART
VCC
RXOUT
RXIN
-25V ≤ VRIN ≤ +25V
5kΩ
Tx
GND ≤ VROUT ≤ VCC
GND
SHDN = GND
GND
Figure 6. Inverting Receiver Connections
Old
RS-232 Chip
Figure 7. Power Drain Through Powered Down Peripheral
VCC
Transition
Detector
To
Wake-Up
Logic
ISL4221E, ISL4223E
VCC
INVALID
RX
Powered
Down
UART
VOUT = HI-Z
ROUT
TX
RIN
TIN
EN = VCC
TOUT
Figure 8. Disabled Receivers Prevent Power Drain
4.4
Low Power Operation
The 3V ISL4221E, ISL4223E, and ISL3232E require a nominal supply current of 0.3mA, even at VCC = 5.5V
during normal operation (not in powerdown mode). This supply current is considerably less than the 5mA to 11mA
current required by comparable 5V RS-232 devices, which allows you to reduce system power simply by
switching to this new family.
FN6045 Rev.7.00
May.2.19
Page 13 of 24
ISL3232E, ISL4221E, ISL4223E
4.5
4. Application Information
Powerdown Functionality (Excluding ISL3232E)
The already low current requirement drops significantly when the device enters powerdown mode. In powerdown,
supply current drops to 150nA because the on-chip charge pump turns off (V+ collapses to VCC, V- collapses to
GND) and the transmitter outputs tri-state. Receiver outputs are unaffected by powerdown; see Table 5 for details.
This micro-power mode makes the ISL4221E and ISL4223E ideal for battery-powered and portable applications.
Table 5.
Powerdown and Enable Logic Truth Table (Excluding ISL3232E)
RS-232 Signal Present
at Receiver Input?
FORCEOFF FORCEON
EN
Input
Input
Input
Transmitter
Outputs
Receiver
Outputs
INVALID
Output
Mode of Operation
No
H
H
L
Active
Active
L
Normal Operation
(Auto Powerdown Disabled)
No
H
H
H
Active
High-Z
L
Yes
H
L
L
Active
Active
H
Yes
H
L
H
Active
High-Z
H
No
H
L
L
High-Z
Active
L
No
H
L
H
High-Z
High-Z
L
Yes
L
X
L
High-Z
Active
H
Manual Powerdown
Yes
L
X
H
High-Z
High-Z
H
Manual Powerdown w/Rcvr.
Disabled
No
L
X
L
High-Z
Active
L
Manual Powerdown
No
L
X
H
High-Z
High-Z
L
Manual Powerdown w/Rcvr.
Disabled
Normal Operation
(Auto Powerdown Enabled)
Powerdown Due to Auto Powerdown
Logic
4.5.1 Software Controlled (Manual) Powerdown
The ISL4221E and ISL4223E family provide pins that allow you to force the IC into the low power, standby state,
and use a two pin approach where the FORCEON and FORCEOFF inputs determine the IC’s mode. For always
enabled operation, FORCEON and FORCEOFF are both strapped high. Under logic or software control, only the
FORCEOFF input needs to be driven to switch between active and powerdown modes. The FORCEON state is
not critical because FORCEOFF overrides FORCEON. However, if strictly manual control over powerdown is
needed, you must strap FORCEON high to disable the automatic powerdown circuitry.
Connecting FORCEOFF and FORCEON together disables the automatic powerdown feature, enabling them to
function as a manual SHUTDOWN input (see Figure 9).
The time to recover from automatic powerdown mode is typically 100µs.
FORCEOFF
Power
Management
Logic
FORCEON
INVALID
ISL4221E, ISL4223E
I/O
UART
CPU
Figure 9. Connections for Manual Powerdown when No Valid Receiver Signals are Present
FN6045 Rev.7.00
May.2.19
Page 14 of 24
ISL3232E, ISL4221E, ISL4223E
4. Application Information
4.5.2 Automatic Powerdown (Excluding ISL3232E)
Even greater power savings are available by using the automatic powerdown function. When no valid RS-232
voltages (see Figure 10) are sensed on any receiver input for 30µs, the charge pump and transmitters power
down, and reduce supply current to 150nA. Invalid receiver levels occur whenever the driving peripheral’s outputs
are shut off (powered down) or when the RS-232 interface cable is disconnected. The ISL4221E and ISL4223E
power back up whenever they detect a valid RS-232 voltage level on any receiver input. This automatic
powerdown feature provides additional system power savings without changes to the existing operating system.
2.7V
Valid RS-232 Level - ISL4221E, ISL4223E is Active
Indeterminate - Powerdown May Occur
0.3V
Invalid Level - Powerdown Occurs After 30µs
-0.3V
Indeterminate - Powerdown May Occur
-2.7V
Valid RS-232 Level - ISL4221E, ISL4223E is Active
Figure 10. Definition of Valid RS-232 Receiver Levels
Automatic powerdown operates when the FORCEON input is low, and the FORCEOFF input is high. Tying
FORCEON high disables automatic powerdown, but manual powerdown is always available with the overriding
FORCEOFF input. Table 5 on page 14 summarizes the automatic powerdown functionality.
Some applications may need more time to wake up from shutdown. If automatic powerdown is used, the RS-232
device re-enters powerdown if valid receiver levels are not reestablished within 30µs of the ISL4221E and
ISL4223E powering up. Figure 11 illustrates a circuit that keeps the ISL4221E and ISL4223E from initiating
automatic powerdown for 100ms after powering up. The delay gives the slow-to-wake peripheral circuit time to
re-establish valid RS-232 output levels.
Power
Management
Unit
Master Powerdown Line
0.1µF
FORCEOFF
1MΩ
FORCEON
ISL4221E, ISL4223E
Figure 11. Circuit to Prevent Auto Powerdown for 100ms After Forced Power-Up
The time to recover from automatic powerdown mode is typically 100µs.
4.5.3 INVALID Output (Excluding ISL3232E)
The INVALID output always indicates whether or not a valid RS-232 signal (see Figure 10) is present at any of the
receiver inputs (see Table 5 on page 14), giving you a way to determine when the interface block should power
down. Invalid receiver levels occur whenever the driving peripheral’s outputs are shut off (powered down) or when
the RS-232 interface cable is disconnected. In the case of a disconnected interface cable where all the receiver
inputs are floating (but pulled to GND by the internal receiver pull down resistors), the INVALID logic detects the
invalid levels and drives the output low. The power management logic then uses this indicator to powerdown the
interface block. Reconnecting the cable restores valid levels at the receiver inputs, INVALID switches high, and
the power management logic wakes up the interface block. INVALID can also be used to indicate the DTR or
RING INDICATOR signal, as long as the other receiver inputs are floating, or driven to GND (as in the case of a
powered down driver).
FN6045 Rev.7.00
May.2.19
Page 15 of 24
ISL3232E, ISL4221E, ISL4223E
4. Application Information
INVALID switches low after invalid levels have persisted on all of the receiver inputs for more than 30µs (see
Figure 12). INVALID switches back high 1µs after detecting a valid RS-232 level on a receiver input. INVALID
operates in all modes (forced or automatic powerdown, or forced on), so it is also useful for systems employing
manual powerdown circuitry. When automatic powerdown is used, INVALID = 0 indicates that the ISL4221E and
ISL4223E are in powerdown mode.
Invalid
} Region
Receiver
Inputs
Transmitter
Outputs
INVALID
Output
VCC
0
tINVH
tINVL
AUTOPWDN
PWR UP
V+
VCC
0
V-
Figure 12. Automatic Powerdown and INVALID Timing Diagrams
4.6
Capacitor Selection
The charge pumps require 0.1µF, or greater, capacitors for proper operation. Increasing the capacitor values (by a
factor of 2) reduces ripple on the transmitter outputs and slightly reduces power consumption.
When using minimum required capacitor values, make sure that capacitor values do not degrade excessively with
temperature. If in doubt, use capacitors with a larger nominal value. The capacitor’s Equivalent Series Resistance
(ESR) usually rises at low temperatures and it influences the amount of ripple on V+ and V-.
4.7
Power Supply Decoupling
In most circumstances a 0.1µF bypass capacitor is adequate. In applications that are particularly sensitive to
power supply noise, decouple VCC to ground with a capacitor of the same value as the charge-pump capacitor C1.
Connect the bypass capacitor as close as possible to the IC.
4.8
Transmitter Outputs when Exiting Powerdown
Figure 13 shows the response of two transmitter outputs when exiting powerdown mode. As they activate, the two
transmitter outputs properly go to opposite RS-232 levels, with no glitching, ringing, nor undesirable transients.
Each transmitter is loaded with 3kΩ in parallel with 2500pF.
5V/Div
FORCEOFF
T1
2V/Div
T2
VCC = +3.3V
C1 - C4 = 0.1µF
Time (20µs/Div)
Figure 13. Transmitter Outputs When Exiting Powerdown
Note: The transmitters enable only when the magnitude of the supplies exceed approximately 3V.
FN6045 Rev.7.00
May.2.19
Page 16 of 24
ISL3232E, ISL4221E, ISL4223E
4.9
4. Application Information
Operation Down to 2.7V
ISL4221E, ISL4223E, and ISL3232E transmitter outputs meet RS-562 levels (±3.7V), at the full data rate, with
VCC as low as 2.7V. RS-562 levels typically ensure interoperability with RS-232 devices.
4.10
High Data Rates
The ISL4221E, ISL4223E, and ISL3232E maintain the RS-232 ±5V minimum transmitter output voltages even at
high data rates. Figure 14 shows a transmitter loopback test circuit, and Figure 15 shows the loopback test result
at 120kbps. For this test, all transmitters were simultaneously driving RS-232 loads in parallel with 1000pF, at
120kbps. Figure 16 shows the loopback results for a single transmitter driving 1000pF and an RS-232 load at
250kbps. The static transmitters were also loaded with an RS-232 receiver.
VCC
0.1µF
C1
C2
+
VCC
V+
+
C1+
+
C1ISL4221E, ISL4223E
VC2+
VCC
C4
TOUT
RIN
ROUT
FORCEON
C3
+
C2TIN
+
1000pF
5k
FORCEOFF
Figure 14. Transmitter Loopback Test Circuit
5V/Div
5V/Div
T1IN
T1IN
T1OUT
T1OUT
R1OUT
R1OUT
VCC = +3.3V
C1 - C4 = 0.1µF
VCC = +3.3V
C1 - C4 = 0.1µF
Time (5µs/Div)
Figure 15. Loopback Test at 120kbps
FN6045 Rev.7.00
May.2.19
Time (2µs/Div)
Figure 16. Loopback Test at 250kbps
Page 17 of 24
ISL3232E, ISL4221E, ISL4223E
4.11
4. Application Information
Interconnection with 3V and 5V Logic
The ISL4221E, ISL4223E, and ISL3232E directly interface with 5V CMOS and TTL logic families. Nevertheless,
with the ISL4221E, ISL4223E, and ISL3232E at 3.3V, and the logic supply at 5V, AC, HC, and CD4000 outputs
can properly drive ISL4221E, ISL4223E, and ISL3232E inputs, but ISL4221E, ISL4223E, and ISL3232E outputs
do not reach the minimum VIH for these logic families. See Table 6 for more information.
Table 6.
Logic Family Compatibility with Various Supply Voltages
System Power-Supply
Voltage (V)
VCC Supply Voltage (V)
3.3
3.3
5
5
5
3.3
FN6045 Rev.7.00
May.2.19
Compatibility
Compatible with all CMOS families.
Compatible with all TTL and CMOS logic families.
Compatible with ACT and HCT CMOS, and with TTL. ISL4221E, ISL4223E, and
ISL3232E outputs are incompatible with AC, HC, and CD4000 CMOS inputs.
Page 18 of 24
ISL3232E, ISL4221E, ISL4223E
5.
5. ±15kV ESD Protection
±15kV ESD Protection
All pins on ISL4221E, ISL4223E, and ISL3232E devices include ESD protection structures, but the RS-232 pins
(transmitter outputs and receiver inputs) incorporate advanced structures that allow them to survive ESD events
up to ±15kV. The RS-232 pins are particularly vulnerable to ESD damage because they typically connect to an
exposed port on the exterior of the finished product. Touching the port pins, or connecting a cable, can cause an
ESD event that might destroy unprotected ICs. The ESD structures protect the device whether or not it is
powered-up, protect without allowing any latchup mechanism to activate, and do not interfere with RS-232 signals
as large as ±25V.
5.1
Human Body Model (HBM) Testing
The Human Body Model (HBM) test method emulates the ESD event delivered to an IC during human handling.
The tester delivers the charge through a 1.5kΩ current limiting resistor, so the test is less severe than the
IEC61000 test, which uses a 330Ω limiting resistor. The HBM method determines an IC’s ability to withstand the
ESD transients typically present during handling and manufacturing. Due to the random nature of these events,
each pin is tested with respect to all other pins. The RS-232 pins on “E” family devices can withstand HBM ESD
events to ±15kV.
5.2
IEC61000-4-2 Testing
The IEC61000-4-2 test method applies to finished equipment, rather than to an individual IC. Therefore, the pins
most likely to suffer an ESD event are those that are exposed to the outside world (the RS-232 pins in this case),
and the IC is tested in its typical application configuration (power applied) rather than testing each pin-to-pin
combination. The lower current limiting resistor coupled with the larger charge storage capacitor yields a test that
is much more severe than the HBM test. The extra ESD protection built into this device’s RS-232 pins allows the
design of equipment that meet Level 4 criteria without the need for additional board level protection on the RS-232
port.
5.3
Air-Gap Discharge Test Method
For the air-gap discharge test method, a charged probe tip moves toward the IC pin until the voltage arcs to it.
The current waveform delivered to the IC pin depends on factors such as approach speed, humidity, and
temperature so it is difficult to obtain repeatable results. The “E” device RS-232 pins withstand ±15kV air-gap
discharges.
5.4
Contact Discharge Test Method
During the contact discharge test, the probe contacts the tested pin before the probe tip is energized and
eliminates the variables associated with the air-gap discharge. The result is a more repeatable and predictable
test, but equipment limits prevent testing devices at voltages higher than ±8kV. All “E” family devices survive ±8kV
contact discharges on the RS-232 pins.
FN6045 Rev.7.00
May.2.19
Page 19 of 24
ISL3232E, ISL4221E, ISL4223E
6.
6. Die Characteristics
Die Characteristics
Substrate and QFN Thermal Pad Potential (Powered Up)
GND
Transistor Count
ISL3232E: 296
ISL4221E: 286
ISL4223E: 357
Process
Si Gate CMOS
FN6045 Rev.7.00
May.2.19
Page 20 of 24
ISL3232E, ISL4221E, ISL4223E
7.
7. Revision History
Revision History
Rev.
Date
Description
7
May.2.19
Updated to latest formatting.
Updated Related Literature section.
Updated Ordering information table by adding active tape and reel information, updated notes, adding note 3,
and removed retired parts
Added “Charge Pump Absolute Maximum Ratings” on page 11.
Removed About Intersil section.
Added Revision History section.
Updated disclaimer.
FN6045 Rev.7.00
May.2.19
Page 21 of 24
ISL3232E, ISL4221E, ISL4223E
8.
8. Package Outline Drawings
Package Outline Drawings
For the most recent package outline drawing, see L16.5x5B.
L16.5x5B
16 LEAD QUAD FLAT NO-LEAD PLASTIC PACKAGE
Rev 2, 02/08
4X 2.4
5.00
12X 0.80
A
B
13
6
PIN 1
INDEX AREA
6
PIN #1 INDEX AREA
16
12
5.00
1
3 . 10 ± 0 . 15
9
(4X)
4
0.15
5
8
TOP VIEW
0.10 M C A B
+0.15
16X 0 . 60
-0.10
4 0.33 +0.07 / -0.05
BOTTOM VIEW
SEE DETAIL "X"
0.10 C
1.00 MAX
C
BASE PLANE
SEATING PLANE
0.08 C
( 4 . 6 TYP )
(
SIDE VIEW
3 . 10 )
( 12X 0 . 80 )
C
( 16X 0 .33 )
( 16 X 0 . 8 )
0 . 2 REF
5
0 . 00 MIN.
0 . 05 MAX.
TYPICAL RECOMMENDED LAND PATTERN
DETAIL "X"
NOTES:
1. Dimensions are in millimeters.
Dimensions in ( ) for Reference Only.
2. Dimensioning and tolerancing conform to AMSE Y14.5m-1994.
3. Unless otherwise specified, tolerance : Decimal ± 0.05
4. Dimension b applies to the metallized terminal and is measured
between 0.15mm and 0.30mm from the terminal tip.
5. Tiebar shown (if present) is a non-functional feature.
6. The configuration of the pin #1 identifier is optional, but must be
located within the zone indicated. The pin #1 identifier may be
either a mold or mark feature.
FN6045 Rev.7.00
May.2.19
Page 22 of 24
ISL3232E, ISL4221E, ISL4223E
8. Package Outline Drawings
For the most recent package outline drawing, see L20.5x5.
L20.5x5
20 Lead Quad Flat No-Lead Plastic Package (QFN)
Micro Lead Frame Plastic Package (MLFP)
MILLIMETERS
SYMBOL
MIN
NOMINAL
MAX
NOTES
A
0.80
0.90
1.00
-
A1
-
0.02
0.05
-
A2
-
0.65
1.00
9
A3
b
0.20 REF
0.23
D
0.38
5, 8
5.00 BSC
D1
D2
0.30
9
-
4.75 BSC
2.95
3.10
9
3.25
7, 8
E
5.00 BSC
-
E1
4.75 BSC
9
E2
2.95
e
3.10
3.25
7, 8
0.65 BSC
-
k
0.20
-
-
-
L
0.35
0.60
0.75
8
N
20
2
Nd
5
3
Ne
5
3
P
-
-
0.60
θ
-
-
12
9
9
Rev. 4 11/04
Notes:
1. Dimensioning and tolerancing conform to ASME Y14.5-1994.
2. N is the number of terminals.
3. Nd and Ne refer to the number of terminals on each D and E.
4. All dimensions are in millimeters. Angles are in degrees.
5. Dimension b applies to the metallized terminal and is measured
between 0.15mm and 0.30mm from the terminal tip.
6. The configuration of the pin #1 identifier is optional, but must be
located within the zone indicated. The pin #1 identifier may be
either a mold or mark feature.
7. Dimensions D2 and E2 are for the exposed pads which provide
improved electrical and thermal performance.
8. Nominal dimensions are provided to assist with PCB Land Pattern
Design efforts, see TB389.
9. Features and dimensions A2, A3, D1, E1, P & θ are present when
Anvil singulation method is used and not present for saw
singulation.
10. Compliant to JEDEC MO-220VHHC Issue I except for the "b"
dimension.
FN6045 Rev.7.00
May.2.19
Page 23 of 24
1RWLFH
'HVFULSWLRQVRIFLUFXLWVVRIWZDUHDQGRWKHUUHODWHGLQIRUPDWLRQLQWKLVGRFXPHQWDUHSURYLGHGRQO\WRLOOXVWUDWHWKHRSHUDWLRQRIVHPLFRQGXFWRUSURGXFWV
DQGDSSOLFDWLRQH[DPSOHV
工商网监
湘ICP备2023018690号
