datasheetbank_Logo
Integrated circuits, Transistor, Semiconductors Search and Datasheet PDF Download Site

MAX3224E View Datasheet(PDF) - Maxim Integrated

Part Name
Description
View to exact match
MAX3224E Datasheet PDF : 21 Pages
1 2 3 4 5 6 7 8 9 10 Next Last
MAX3224E/MAX3225E/
MAX3226E/MAX3227E/MAX3244E/MAX3245E
±15kV ESD-Protected, 1µA, 1Mbps 3.0V to 5.5V,
RS-232 Transceivers with AutoShutdown Plus
Pin Description (continued)
MAX3224E
MAX3225E
TQFN
DIP/
SSOP/
TSSOP
12
14
16
18
17
19
18
20
PIN
MAX3226E
MAX3227E
TQFN
SSOP/
TSSOP
9
12
11
14
12
15
13
16
MAX3244E
MAX3245E
SO/ SSOP/ TSSOP
MAX3245E
TQFN
NAME
FUNCTION
Force-On Input, Active High.
Drive high to override
23
25
FORCEON
AutoShutdown Plus, keeping
transmitters and receivers on
(FORCEOFF must be high)
(Table 1).
25
27
GND
Ground
+3.0V to +5.5V Single Supply
26
29
VCC
Voltage
Force-Off Input, Active Low.
Drive low to shut down
transmitters, receivers
22
24
FORCEOFF (except R2OUTB), and
charge pump. This overrides
AutoShutdown Plus and
FORCEON (Table 1).
TTL/CMOS Noninverting
20
21
R2OUTB Complementary Receiver
Outputs. Always active.
6, 10, 14,
18, 22, 28,
32, 36
N.C.
No Connection. Not internally
connected.
Exposed Pad. Solder the
EP
exposed pad to the ground
plane or leave unconnected.
_______________Detailed Description
Dual Charge-Pump Voltage Converter
The MAX3224E–MAX3227E/MAX3244E/MAX3245E’s
internal power supply consists of a regulated dual
charge pump that provides output voltages of +5.5V
(doubling charge pump) and -5.5V (inverting charge
pump), over the +3.0V to +5.5V range. The charge
pump operates in discontinuous mode: if the output
voltages are less than 5.5V, the charge pump is
enabled; if the output voltages exceed 5.5V, the
charge-pump is disabled. Each charge pump requires
a flying capacitor (C1, C2) and a reservoir capacitor
(C3, C4) to generate the V+ and V- supplies.
The READY output (MAX3224E–MAX3227E) is low
when the charge pumps are disabled in shutdown
mode. The READY signal asserts high when V- goes
below -4V.
8
Maxim Integrated
 

Share Link: 

datasheetbank.com [ Privacy Policy ] [ Request Datasheet ] [ Contact Us ]