MAX4823ETP+ Fast Delivery |IC PHOENIX CO.,LIMITED

MAX4823ETP+ ,+3.3V/+5V, 8-Channel, Relay Drivers with Fast Recovery Time and Power-Save Modeapplications where switchingspeed is critical. ♦ Drive +3V and +5V RelaysThe MAX4822/MAX4824 featur ..
MAX4826ELT+ ,50mA/100mA Current-Limit Switches with NO-LOAD Flag in µDFNApplicationsfeature where the switch turns off after the blankingtime, and then continuously checks ..
MAX483 ,Low-Power, Slew-Rate-Limited RS-485/RS-422 TransceiversELECTRICAL CHARACTERISTICS(V = 5V ±5%, T = T to T , unless otherwise noted.) (Notes 1, 2)CC A MIN M ..
MAX483 ,Low-Power, Slew-Rate-Limited RS-485/RS-422 TransceiversFeaturesThe MAX481, MAX483, MAX485, MAX487–MAX491, and♦ For Fault-Tolerant
MAX4831ELT+ ,50mA/100mA Current-Limit Switches with NO-LOAD Flag in µDFNELECTRICAL CHARACTERISTICS(V = +2.3V to +5.5V, T = -40°C to +85°C, unless otherwise noted. Typical ..
MAX4831ELT+T ,50mA/100mA Current-Limit Switches with NO-LOAD Flag in µDFNapplications. In addition to the current-limit♦ Fault Flag (FFLG)fault flag (FFLG), an open-drain n ..
MAX8878EZK30+T ,Low-Noise, Low-Dropout, 150mA Linear Regulators with '2982 Pinout
MAX8878EZK30-T ,Low-Noise, Low-Dropout, 150mA Linear Regulators with '2982 Pinout
MAX8878EZK32+T ,Low-Noise, Low-Dropout, 150mA Linear Regulators with '2982 Pinout
MAX8878EZK32-T ,Low-Noise, Low-Dropout, 150mA Linear Regulators with '2982 Pinout
MAX8878EZK33+T ,Low-Noise, Low-Dropout, 150mA Linear Regulators with '2982 Pinout
MAX8878EZK36+T ,Low-Noise, Low-Dropout, 150mA Linear Regulators with '2982 Pinout

MAX4823ETP+
+3.3V/+5V, 8-Channel, Relay Drivers with Fast Recovery Time and Power-Save Mode
General Description
The MAX4822–MAX4825 8-channel relay drivers offer
built-in kickback protection and drive +3V/+5V non-
latching or dual-coil-latching relays. Each independent
open-drain output features a 2.7Ω(typ) on-resistance
and is guaranteed to sink 70mA (min) of load current.
These devices consume less than 300µA (max) quies-
cent current and have 1µA output off-leakage current.
A Zener-kickback-protection circuit significantly
reduces recovery time in applications where switching
speed is critical.
The MAX4822/MAX4824 feature a unique power-save
mode where the relay current, after activation, can be
reduced to a level just above the relay hold-current
threshold. This mode keeps the relay activated while
significantly reducing the power consumption.
The MAX4822/MAX4823 feature a 10MHz SPI™-/
QSPI™-/MICROWIRE™-compatible serial interface.
Input data is shifted into a shift register and latched to
the outputs when CStransitions from low to high. Each
data bit in the shift register corresponds to a specific
output, allowing independent control of all outputs.
The MAX4824/MAX4825 feature a 4-bit parallel-input
interface. The first 3 bits (A0, A1, A2) determine the out-
put address, and the fourth bit (LVL) determines whether
the selected output is switched on or off. Data is latched
to the outputs when CStransitions from low to high.
The MAX4822–MAX4825 feature separate set and reset
functions, allowing turn-on or turn-off of all outputs
simultaneously with a single control line. Built-in hys-
teresis (Schmidt trigger) on all digital inputs allows
these devices to be used with slow-rising and falling
signals, such as those from optocouplers or RC power-
up initialization circuits. The MAX4822–MAX4825 are
available in space-saving 4mm x 4mm, 20-pin thin QFN
packages. They are specified over the -40°C to +85°C
extended temperature range.
Applications
ATE Equipment
DSL Redundancy Protection (ADSL/VDSL/HDSL)
T1/E1 Redundancy Protection
T3/E3 Redundancy Protection
Industrial Equipment
Test Equipment (Oscilloscopes, Spectrum
Analyzers)
FeaturesBuilt-In Zener Kickback Protection for Fast
Recovery Programmable Power-Save Mode Reduces Relay
Power Consumption (MAX4822/MAX4824)10MHz SPI-/QSPI-/MICROWIRE-Compatible Serial
InterfaceEight Independent Output ChannelsDrive +3V and +5V RelaysGuaranteed 70mA (min) Coil Drive CurrentGuaranteed 5Ω(max) RONSET / RESETFunctions to Turn On/Off All
Outputs SimultaneouslySerial Digital Output for Daisy ChainingOptional Parallel Interface (MAX4824/MAX4825)Low 300µA (max) Quiescent Supply CurrentSpace-Saving, 4mm x 4mm, 20-Pin TQFN Package
MAX4822–MAX4825
+3.3V/+5V, 8-Channel Relay Drivers with Fast
Recovery Time and Power-Save Mode
Ordering Information
19-3789; Rev 0; 8/05
PARTTEMP RANGEPIN-
PACKAGE
PACKAGE
CODE
MAX4822ETP-40°C to +85°C20 TQFN-EP*T2044-3
MAX4823ETP-40°C to +85°C20 TQFN-EP*T2044-3
MAX4824ETP-40°C to +85°C20 TQFN-EP*T2044-3
MAX4825ETP-40°C to +85°C20 TQFN-EP*T2044-3
*For maximum heat dissipation, packages have an exposed
pad (EP) on the bottom. Solder exposed pad to GND.
Pin Configurations appear at end of data sheet.
SPI is a trademark of Motorola, Inc.
QSPI is a trademark of Motorola, Inc.
MICROWIRE is a trademark of National Semiconductor Corp.
PARTINTERFACEPOWER SAVE
MAX4822SerialYes
MAX4823SerialNo
MAX4824ParallelYes
MAX4825ParallelNo
Selector Guide
MAX4822–MAX4825
+3.3V/+5V, 8-Channel Relay Drivers with Fast
Recovery Time and Power-Save Mode
ABSOLUTE MAXIMUM RATINGS
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 +6.0V
OUT_......................................................................-0.3V to +11V
CS, SCLK, DIN, SET, RESET, A0, A1, A2, LVL......-0.3V to +6.0V
DOUT..........................................................-0.3V to (VCC+ 0.3V)
PSAVE........................................................-0.3V to (VCC+ 0.3V)
Continuous OUT_ Current (all outputs turned on)............150mA
Continuous OUT_ Current (single output turned on)........300mA
Continuous Power Dissipation (TA= +70°C)
20-Lead Thin QFN (derate 16.9mW/°C above +70°C)..1350mW
Operating Temperature Range...........................-40°C to +85°C
Junction Temperature......................................................+150°C
Storage Temperature Range.............................-65°C to +150°C
Soldering Temperature (10s)...........................................+300°C
ELECTRICAL CHARACTERISTICS
(VCC= +2.7V to +5.5V, TA= -40°C to +85°C, unless otherwise noted. Typical values are at VCC= 2.7V, TA = +25°C, unless otherwise
noted.) (Note 1)
PARAMETERSYMBOLCONDITIONSMINTYPMAXUNITS
Operating VoltageVCC2.35.5V
VCC = 3.6V160300Quiescent CurrentICCIOUT_ = 0,
logic inputs = 0 or VCCVCC = 5.5V180300µA
VCC = 3.6V1.2Dynamic Supply CurrentIDfSCLK =10MHz, CDOUT = 50pFVCC = 5.5V1.6mA
Power-save disable threshold (Note 2)+130Thermal ShutdownOutput disable threshold (Note 3)+150°C
Power-On ResetTransform from high voltage to low voltage0.61.22.0V
Power-On Reset Hysteresis140mV
DIGITAL INPUTS (SCLK, DIN, CS, LVL, A0, A1, A2, RESET, SET)
VCC = 2.7V to 3.6V2.0Input Logic-High VoltageVIHVCC = 4.2V to 5.5V2.4V
VCC = 2.7V to 3.6V0.6Input Logic-Low VoltageVILVCC = 4.2V to 5.5V0.8V
Input Logic HysteresisVHYST150mV
Input Leakage CurrentILEAKInput voltages = 0 or 5.5V-1.0+0.01+1.0µA
Input CapacitanceCIN5pF
DIGITAL OUTPUT (DOUT)
DOUT Low VoltageVOLISINK = 6mA0.4V
DOUT High VoltageVOHISOURCE = 0.5mAVCC -
0.5V
MAX4822–MAX4825
+3.3V/+5V, 8-Channel Relay Drivers with Fast
Recovery Time and Power-Save Mode
ELECTRICAL CHARACTERISTICS (continued)
(VCC= +2.7V to +5.5V, TA= -40°C to +85°C, unless otherwise noted. Typical values are at VCC= 2.7V, TA = +25°C, unless otherwise
noted.) (Note 1)
PARAMETERSYMBOLCONDITIONSMINTYPMAXUNITS
RELAY OUTPUT DRIVERS (OUT1–OUT8)
PS = 0010.65 x
VCC
0.7 xVCC
0.75 x
VCC
PS = 0100.55 x
VCC
0.6 x
VCC
0.65 x
VCC
PS = 0110.45 x
VCC
0.5 x
VCC
0.55 x
VCC
PS = 1000.35 x
VCC
0.4 x
VCC
0.45 x
VCC
PS = 1010.25 x
VCC
0.3 x
VCC
0.35 x
VCC
PS = 1100.15 x
VCC
0.2 x
VCC
0.25 x
VCC
OUT_ Drive Voltage,
Power-Save On
(MAX4822)
VOUTPS_VCC = 2.7V
(Note 4)
PS = 1110.05 x
VCC
0.1.x
VCC
0.15 x
VCC
OUT_ Drive Voltage,
Power-Save On (MAX4824)VOUTPS_VCC = 2.7V (Note 4)0.35 x
VCC
0.4 x
VCC
0.45 x
VCCV
OUT_ On-ResistanceRONVCC = 2.7V, IOUT_ = 70mA2.75.0Ω
OUT_ Off-Leakage CurrentILEAKVOUT_ = VCC, all outputs off-1+1µA
Zener Clamping VoltageVCLAMPIOUT_ = 70mA (Note 5)7.0910.5V
SPI TIMING (MAX4822/MAX4823)
Turn-On Time (OUT_)tONFrom rising edge of CS, RL = 50Ω,
CL = 50pF1.0µs
Turn-Off Time (OUT_)tOFFFrom rising edge of CS, RL = 50Ω,
CL = 50pF3.0µs
SCLK FrequencyfSCLK010MHz
Cycle TimetCH + tCL100ns
CS Fall-to-SCLK Rise SetuptCSS50ns
CS Rise-to-SCLK HoldtCSH50ns
SCLK High TimetCH40ns
SCLK Low TimetCL40ns
Data Setup TimetDS20ns
MAX4822–MAX4825
+3.3V/+5V, 8-Channel Relay Drivers with Fast
Recovery Time and Power-Save Mode
Note 1:Specifications at -40°C are guaranteed by design and not production tested.
Note 2:Thermal shutdown disables power save from all channels to reduce power dissipation inside the device.
Note 3:Thermal shutdown turns off all channels.
Note 4:The circuit can set the output voltage in power-save mode only if IOUTx RON< VOUTP.
Note 5:After relay turn-off, inductive kickback can momentarily cause the OUT_ voltage to exceed VCC. This is considered part of
normal operation and does not damage the device.
Note 6:Guaranteed by design.
Note 7:For other capacitance values, use the equation tPS = 32 x C.
ELECTRICAL CHARACTERISTICS (continued)
(VCC= +2.7V to +5.5V, TA= -40°C to +85°C, unless otherwise noted. Typical values are at VCC= 2.7V, TA = +25°C, unless otherwise
noted.) (Note 1)
PARAMETERSYMBOLCONDITIONSMINTYPMAXUNITS
Data Hold TimetDH0ns
50% of SCLK to (VIH, VIL of DIN),SCLK Fall to DOUT ValidtDOCL = 50pF1728ns
Rise Time (DIN, SCLK, CS, SET,
RESET)tSCR20% of VCC to 70% of VCC, CL = 50pF
(Note 6)2µs
Fall Time (DIN, SCLK, CS,
RESET, SET)tSCF20% of VCC to 70% of VCC, CL = 50pF
(Note 6)2µs
RESET Minimum Pulse WidthtRW70ns
SET Minimum Pulse WidthtSW70ns
CS Minimum Pulse WidthtCSW40ns
PARALLEL TIMING (MAX4824/MAX4825)
Turn-On TimetONFrom rising edge of CS, RL = 50Ω,
CL = 50pF1µs
Turn-Off TimetOFFFrom rising edge of CS, RL = 50Ω,
CL = 50pF3µs
LVL Setup TimetLS20ns
LVL Hold TimetLH0ns
Address to CS Setup TimetAS20ns
Address to CS Hold TimetAH0ns
Rise Time (A2, A1, A0, LVL)tSCR20% of VCC to 70% of VCC, CL = 50pF
(Note 6)2µs
Fall Time (A2, A1, A0, LVL)tSCF20% of VCC to 70% of VCC, CL = 50pF
(Note 6)2µs
RESET Pulse WidthtRW70ns
SET Pulse WidthtSW70ns
CS Minimum Pulse WidthtCSW40ns
POWER-SAVE TIMING (MAX4822/MAX4824)
Power-Save Delay TimetPSVariation from typical value, CL = 100nF
(Note 7)1.63.25.4ms
Minimum PSAVE Low Time to
Power-Save ResettPSR23.5ms
MAX4822–MAX4825
+3.3V/+5V, 8-Channel Relay Drivers with Fast
Recovery Time and Power-Save Mode
QUIESCENT SUPPLY CURRENT
vs. SUPPLY VOLTAGE
MAX4822-25 toc01
SUPPLY VOLTAGE (V)
SUPPLY CURRENT (
ALL CHANNELS OFF
QUIESCENT SUPPLY CURRENT
vs. TEMPERATURE
MAX4822-25 toc02
TEMPERATURE (°C)
SUPPLY CURRENT (3510-15
VCC = 5.5V
VCC = 2.3V
VCC = 3.3V
VCC = 5.0V
DYNAMIC SUPPLY CURRENT
vs. FREQUENCY
MAX4822-25 toc03
FREQUENCY (MHz)
DYNAMIC SUPPLY CURRENT (mA)
CDOUT = 50pF
VCC = 5.5V
VCC = 3.6V
QUIESCENT SUPPLY CURRENT
vs. LOGIC-INPUT VOLTAGE
MAX4822-25 toc04
LOGIC-INPUT VOLTAGE (V)
SUPPLY CURRENT (321
ALL LOGIC INPUTS
CONNECTED
VCC = 5.5V
VCC = 3.3V
ON-RESISTANCE vs. SUPPLY VOLTAGE
MAX4822-25 toc05
SUPPLY VOLTAGE (V)
IOUT_SINK = 70mA
ON-RESISTANCE vs. TEMPERATURE
MAX4822-25 toc06
TEMPERATURE (°C)3510-15
VCC = 5.5V
VCC = 2.3V
VCC = 3.3V
VCC = 5.0V
IOUT-SINK = 70mA
POWER-ON RESET VOLTAGE
vs. TEMPERATURE
MAX4822-25 toc07
TEMPERATURE (°C)
POWER-ON RESET VOLTAGE (V)3510-15
OUTPUT OFF-LEAKAGE CURRENT
vs. SUPPLY VOLTAGE
MAX4822-25 toc08
SUPPLY VOLTAGE (V)
OUTPUT OFF-LEAKAGE (pA)
OUTPUT OFF-LEAKAGE CURRENT
vs. TEMPERATURE
MAX4822-25 toc09
TEMPERATURE (°C)
OUTPUT OFF-LEAKAGE (nA)3510-15
2.3V, 3.3V, 5.0V, AND 5.5V
Typical Operating Characteristics
(VCC= 3.3V, TA= +25°C, unless otherwise noted.)

Partno	Mfg	Dc	Qty	Available	Descript
MAX4823ETP+ \|MAX4823ETP	MAXIM	N/a	45	avai	+3.3V/+5V, 8-Channel, Relay Drivers with Fast Recovery Time and Power-Save Mode