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MAX221
+5V, 1A, Single RS-232 Transceiver
with AutoShutdown
2
_______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS
(VCC = +5V ±10%, C1–C4 = 0.1F, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C.)
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
VCC ..........................................................................-0.3V to +6V
V+ ...............................................................(VCC - 0.3V) to +14V
V- ...........................................................................-14V to +0.3V
Input Voltages
TIN ..........................................................-0.3V to (V+ + 0.3V)
RIN .................................................................................±30V
FORCEON, FORCEOFF, EN.................-0.3V to (VCC + 0.3V)
Output Voltages
TOUT ..............................................(V- - 0.3V) to (V+ + 0.3V)
ROUT, INVALID ....................................-0.3V to (VCC + 0.3V)
Short-Circuit Duration, TOUT .....................................Continuous
Continuous Power Dissipation (TA = +70°C)
TSSOP (derated 6.7mW/°C above +70°C) ................533mW
SSOP (derated 7.1mW/°C above +70°C) ..................571mW
Operating Temperature Range
MAX221C_ _ .....................................................0°C to +70°C
MAX221E_ _ ..................................................-40°C to +85°C
Maximum Junction Temperature ................................... +150°C
Storage Temperature Range ........................... -65°C to +150°C
Lead Temperature (soldering, 10sec) ............................ +300°C
Figure 3
No load, TA = +25°C
Figure 3
ISOURCE = 1.0mA
ISINK = 1.6mA
CONDITIONS
ICC = 1A, Figure 3
ROUT; ISINK = 3.2mA
Figure 3
TIN; EN, FORCEOFF, FORCEON
TA = +25°C, Figure 1
EN = VCC, 0 ≤ ROUT ≤ VCC
TIN = 0 to VCC
ROUT; ISOURCE = 1.0mA
s
30
tINVL
Receiver Positive or Negative
Threshold to INVALID Low
s
1
tINVH
Receiver Positive or Negative
Threshold to INVALID High
s
250
tWU
Receiver Threshold to
Transmitter Enabled
V
VCC - 0.6
INVALID Output Voltage High
V
0.4
INVALID Output Voltage Low
V
-0.3
0.3
Receiver Input Threshold,
Transmitter Disabled
-2.7
Positive threshold
V
2.7
Receiver Input Threshold,
Transmitter Enabled
A
±0.05
±10
Negative threshold
Output Leakage Current
V
3.5
VOH
Output Voltage High
mA
510
ICC
VCC Supply Current
UNITS
MIN
TYP
MAX
SYMBOL
PARAMETER
V
0.4
VOL
Output Voltage Low
V
0.8
VIL
Input Threshold Low
A
110
ISHDN
Shutdown Supply Current
A
110
IAS
AutoShutdown Supply Current
A
±1
IIN
Input Leakage Current
TIN, EN, FORCEOFF
V
2.4
VIH
Input Threshold High
DC CHARACTERISTICS
LOGIC INPUTS
AUTOSHUTDOWN