MAX4825ETP+ Maxim Integrated Products, MAX4825ETP+ Datasheet - Page 7
![IC RELAY DRIVER 8CHAN 20-TQFN](/photos/6/50/65030/20-tqfn_pkg_sml.jpg)
MAX4825ETP+
Manufacturer Part Number
MAX4825ETP+
Description
IC RELAY DRIVER 8CHAN 20-TQFN
Manufacturer
Maxim Integrated Products
Type
Relay/Lamp Driverr
Datasheet
1.MAX4823ETP.pdf
(19 pages)
Specifications of MAX4825ETP+
Input Type
Parallel
Number Of Outputs
8
On-state Resistance
2.7 Ohm
Current - Output / Channel
70mA
Current - Peak Output
150mA
Voltage - Supply
2.3 V ~ 5.5 V
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
20-TQFN Exposed Pad
Product
Relay Drivers
Rise Time
2 us
Fall Time
2 us
Supply Voltage (max)
5.5 V
Supply Voltage (min)
2.3 V
Supply Current
160 uA
Maximum Power Dissipation
1350 mW
Maximum Operating Temperature
- 40 C
Mounting Style
SMD/SMT
Minimum Operating Temperature
+ 85 C
Device Type
Relay
Output Current
70mA
Supply Voltage Range
2.3V To 5.5V
Driver Case Style
TQFN
No. Of Pins
20
Operating Temperature Range
-40°C To +85°C
Peak Reflow Compatible (260 C)
No
Rohs Compliant
Yes
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
MAX4822
10, 16
11
12
13
14
15
17
18
1
2
3
4
5
6
7
8
9
+3.3V/+5V, 8-Channel Relay Drivers with Fast
PIN
MAX4823
10, 16
6, 13
11
12
14
15
17
18
—
_______________________________________________________________________________________
1
2
3
4
5
7
8
9
Recovery Time and Power-Save Mode
RESET
PSAVE
NAME
PGND
DOUT
SCLK
OUT8
OUT7
OUT6
OUT5
OUT4
OUT3
OUT2
OUT1
GND
N.C.
DIN
CS
Reset Input. Drive RESET low to clear all latches and registers (all outputs are high
impedance). RESET overrides all other inputs. If RESET and SET are pulled low at the
same time, then RESET takes precedence.
Chip-Select Input. Drive CS low to select the device. When CS is low, data at DIN is
clocked into the shift register on SCLK’s rising edge. Drive CS from low to high to latch
the data to the registers and activate the relay outputs.
Serial Data Input
Serial Clock Input
Serial Data Output. DOUT is the output of the shift register. DOUT can be used to daisy-
chain multiple MAX4822/MAX4823 devices. The data at DOUT appears synchronous to
SCLK’s falling edge.
No Connection. Not internally connected.
Ground
Open-Drain Output 8. Connect OUT8 to the low side of a relay coil. This output is pulled
to PGND when activated, but otherwise is high impedance.
Open-Drain Output 7. Connect OUT7 to the low side of a relay coil. This output is pulled
to PGND when activated, but otherwise is high impedance.
Power Ground. PGND is a return for the output sinks. Connect PGND pins together and
to GND.
Open-Drain Output 6. Connect OUT6 to the low side of a relay coil. This output is pulled
to PGND when activated, but otherwise is high impedance.
Open-Drain Output 5. Connect OUT5 to the low side of a relay coil. This output is pulled
to PGND when activated, but otherwise is high impedance.
Power-Save Control. Connect a timing capacitor from PSAVE to ground. The capacitor
value determines power-save timing as explained under the Applications Information
section. PSAVE can also be driven externally to control power-save mode
asynchronously. When asserted high, PSAVE reduces the current to all active outputs as
determined by the Power-Save Configuration Register (see Figure 1). To disable power-
save mode in all channels, drive PSAVE low for at least 3ms after the last output setting.
Open-Drain Output 4. Connect OUT4 to the low side of a relay coil. This output is pulled
to PGND when activated, but otherwise is high impedance.
Open-Drain Output 3. Connect OUT3 to the low side of a relay coil. This output is pulled
to PGND when activated, but otherwise is high impedance.
Open-Drain Output 2. Connect OUT2 to the low side of a relay coil. This output is pulled
to PGND when activated, but otherwise is high impedance.
Open-Drain Output 1. Connect OUT1 to the low side of a relay coil. This output is pulled
to PGND when activated, but otherwise is high impedance.
MAX4822/MAX4823 Pin Description
FUNCTION
7