MAX6620 Datasheet, PDF (3/30 Pages) Maxim Integrated Products – Quad Linear Fan-Speed Controller

Quad Linear Fan-Speed Controller
ELECTRICAL CHARACTERISTICS (continued)
(T_A = -40°C to +125°C, V_CC = 3.0V to 5.5V, unless otherwise noted. Typical values are at T_A = +25°C, V_CC = 3.3V.) (Note 3)
PARAMETER
SYMBOL
CONDITION
Fan Control Accuracy (Note 4)
Using 32.768kHz crystal, test at 850RPM
Using on-chip oscillator
XTAL Oscillator Startup Time
X1 Input Threshold
POR Threshold
V_CC
V_FAN
LOGIC (SDA, SCL, FAN_FAIL, WD_START, TACH_)
Input High Voltage
V_IH
Input Low Voltage
V_IL
Input High Current
I_IH
Input Low Current
I_IL
Input Capacitance
Output High Current
Output Low Voltage
LOGIC (DAC_START, SPIN_START, ADDR)
All digital inputs
I_OL = 3mA
Input High Voltage
V_IH
Input Low Voltage
V_IL
Input High Current
I_IH
Input Low Current
I_IL
Input Capacitance
I²C-COMPATIBLE TIMING (Notes 5, 6)
Serial Clock Frequency
f_SCL
Bus Free Time Between STOP
and START Conditions
t_BUF
START Condition Hold Time
STOP Condition Setup Time
Clock Low Period
Clock High Period
START Condition Setup Time
Data Setup Time
Data Out Hold Time
Data In Hold Time
Maximum Receive SCL/SDA Rise
Time
t_HD:STA
t_SU:STO
t_LOW
t_HIGH
t_SU:STA
t_SU:DAT
t_DH
t_HD:DAT
t_R
Minimum Receive SCL/SDA Rise
Time
t_R
All digital inputs
(Note 6)
(Note 8)
(Note 7)
MIN TYP MAX UNITS
-1
+1
%
-3
+3
2
s
0.7
V
2
V
3.5
V_CC x
0.7
V
V_CC x
0.3
V
1.0
µA
-1.0
µA
6
pF
100
µA
0.4
V
V_CC -
0.5
V
0.5
V
1.0
µA
-1.0
µA
6
pF
400
kHz
1.3
µs
0.6
µs
600
ns
1.3
µs
0.6
µs
600
ns
100
ns
100
ns
0
0.9
µs
300
ns
20 + 0.1
x C_B
ns
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