MAX4820 Maxim, MAX4820 Datasheet - Page 3

• Manufacturer Part Number: MAX4820
• Description: The MAX4820/MAX4821 8-channel relay drivers offer built-in kickback protection and drive +3
• Manufacturer: Maxim

ELECTRICAL CHARACTERISTICS (continued)
(V
Note 2: Specifications at -40°C are guaranteed by design and not production tested.
Note 3: After relay turn-off, inductive kickback may momentarily cause the voltage at OUT_ to exceed V
SPI TIMING (MAX4820)
Turn-On Time (OUT_)
Turn-Off Time (OUT_)
SCLK Frequency
Cycle Time
CS Fall to SCLK Rise Setup
CS Rise to SCLK Hold
SCLK High Time
SCLK Low Time
Data Setup Time
Data Hold Time
SCLK Fall to DOUT Valid
Rise Time (DIN, SCLK, CS, SET,
RESET)
Fall Time (DIN, SCLK, CS,
RESET, SET)
RESET Min Pulse Width
SET Min Pulse Width
PARALLEL TIMING (MAX4821)
Turn-On Time
Turn-Off Time
LVL Setup Time
LVL Hold Time
Address to CS Setup Time
Address to CS Hold Time
Rise Time (A2, A1, A0, LVL)
Fall Time (A2, A1, A0, LVL)
RESET Pulse Width
SET Pulse Width
CC
3.3V/+5V, 8-Channel, Cascadable Relay Drivers
= +3V to +5.5V, V
of normal operation and will not damage the device.
PARAMETER
_______________________________________________________________________________________
COM
= V
CC
, T
A
SYMBOL
t
CH
= -40°C to +85°C, unless otherwise noted. Typical values are at T
f
SCLK
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
CSS
CSH
t
t
SCR
t
t
t
SCR
OFF
SCF
OFF
t
SCF
ON
CH
DH
DO
RW
SW
ON
RW
SW
CL
DS
LH
AH
AS
LS
+ t
CL
From rising edge of CS, R
C
From rising edge of CS, R
C
50% of SCLK to 10% of DOUT,
C
20% of V
20% of V
From rising edge of CS, R
C
From rising edge of CS, R
C
20% of V
20% of V
L
L
L
L
L
= 50pF
= 50pF
= 50pF
= 50pF
= 50pF
with Serial/Parallel Interface
CC
CC
CC
CC
to 70% of V
to 70% of V
to 70% of V
to 70% of V
CONDITIONS
CC
CC
CC
CC
L
L
L
L
, C
, C
, C
, C
= 50Ω,
= 50Ω,
= 50Ω,
= 50Ω,
L
L
L
L
= 50pF
= 50pF
= 50pF
= 50pF
MIN
480
240
240
190
190
100
100
100
70
70
70
70
0
0
0
0
COM
A
= +25°C.) (Note 2)
TYP
85
. This is considered part
MAX
120
1.0
1.0
2.1
2
2
1
1
2
2
UNITS
MHz
µs
µs
ns
ns
ns
ns
ns
ns
ns
ns
µs
µs
ns
ns
µs
µs
ns
ns
ns
ns
µs
µs
ns
ns
3