ISL3241E_14 Datasheet, PDF (2/16 Pages) Intersil Corporation – QFN Packaged, ±15kV ESD Protected, +2.7V to +3.6V,250kbps, RS-232 Transmitters/Receivers with Separate Logic Supply Pin

ISL3241E, ISL3243E
Ordering Information
PART NUMBER
(Notes 1, 2, 3)
PART
MARKING
TEMP. RANGE
(°C)
PACKAGE
(Pb-Free)
PKG.
DWG. #
ISL3241EIRZ
ISL3241 EIRZ
-40 to +85
32 Ld 5X5 QFN
L32.5x5B
ISL3243EIRZ
ISL3243 EIRZ
-40 to +85
32 Ld 5X5 QFN
L32.5x5B
NOTES:
1. Add “-T*” suffix for tape and reel. Please refer to TB347 for details on reel specifications.
2. These Intersil 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). Intersil 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), please see device information page for ISL3241E, ISL3243E. For more information on MSL please see tech brief
TB363.
Pin Configurations
ISL3241E
(32 LEAD QFN)
TOP VIEW
ISL3243E
(32 LEAD QFN)
TOP VIEW
32 31 30 29 28 27 26 25
R1_{IN 1}
R2_{IN 2}
R3_{IN 3}
R4_{IN 4}
R5_{IN 5}
T1_{OUT 6}
24 GND
23 ^C1-
22 ^EN
21 ^SHDN
PD
20 ^R1OUTB
19 ^R2OUTB
T2_{OUT 7}
18 ^R1OUT
T3_{OUT 8}
17 ^R2OUT
9 10 11 12 13 14 15 16
32 31 30 29 28 27 26 25
R1_{IN 1}
R2_{IN 2}
R3_{IN 3}
R4_{IN 4}
R5_{IN 5}
T1_{OUT 6}
24 GND
23 ^C1-
22 ^FORCEON
21 ^FORCEOFF
PD
20 ^INVALID
19 ^R2OUTB
T2_{OUT 7}
18 ^R1OUT
T3_{OUT 8}
17 ^R2OUT
9 10 11 12 13 14 15 16
Pin Descriptions
PIN NUMBER
ISL3241E
26
25
PIN NUMBER
ISL3243E
26
25
27
27
31
31
24
24
28
28
23
23
29
29
PIN NAME
V_CC
V_L
V+
V-
GND
C1+
C1-
C2+
FUNCTION
System power supply input (2.7V to 3.6V).
Logic power supply. Sets the V_OH of all the logic outputs and the switching point of all logic
inputs. Keep V_L greater than 1.6V (1.8V - 10%) and less than or equal to V_CC. If V_L isn't
connected to the V_cc supply, ensure that the V_L supply powers up after the V_cc supply.
Internally generated positive transmitter supply (typically +5.5V).
Internally generated negative transmitter supply (typically -5.5V).
Ground connection. This is also the potential of the thermal pad (PD).
External capacitor (voltage doubler) is connected to this lead.
External capacitor (voltage doubler) is connected to this lead.
External capacitor (voltage inverter) is connected to this lead.
2
FN6768.2
June 18, 2012