MAX6971_07 Datasheet, PDF (4/12 Pages) Maxim Integrated Products – 16-Port, 36V Constant-Current LED Driver

16-Port, 36V Constant-Current LED Driver
3.3V TIMING CHARACTERISTICS
(Typical Operating Circuit, V+ = 3V to 5.5V, T_A = T_MIN to T_MAX, unless otherwise noted.) (Notes 1, 2)
PARAMETER
CLK Clock Period
CLK Pulse-Width High
CLK Pulse-Width Low
DIN Setup Time
DIN Hold Time
DOUT Propagation Delay
DOUT Rise and Fall Time
LE Pulse-Width High
LE Setup Time
LE Rising to OUT_ Rising Delay
LE Rising to OUT_ Falling Delay
CLK Rising to OUT_ Rising Delay
CLK Rising to OUT_ Falling Delay
OE Rising to OUT_ Rising Delay
OE Falling to OUT_ Falling Delay
LED Output OUT_ Turn-On Fall
Time
SYMBOL
t_CP
t_CH
t_CL
t_DS
t_DH
t_DO
t_DR, t_DF
t_LW
t_LS
t_LRR
t_LRF
t_CRR
t_CRF
t_OEH
t_OEL
CONDITIONS
C_DOUT = 10pF, 20% to 80%
(Note 3)
(Note 3)
(Note 3)
(Note 3)
(Note 3)
(Note 3)
t_f
80% to 20% (Note 3)
MIN TYP
52
24
24
4
8
12
20
15
LED Output OUT_ Turn-Off Rise
Time
t_r
20% to 80% (Note 3)
Note 1: All parameters tested at T_A = +25°C. Specifications over temperature are guaranteed by design.
Note 2: See Figure 3.
Note 3: A 65Ω pullup resistor connected from OUT_ to 5.5V.
MAX
50
12
120
310
120
330
120
330
120
UNITS
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
120
ns
(T_A = +25°C, unless otherwise noted.)
SUPPLY CURRENT vs. SUPPLY VOLTAGE
(INTERFACE IDLE, ALL OUTPUTS OFF,
R_SET = 720Ω)
2.00
T_A = +125°C
1.95
T_A = +85°C
1.90
T_A = -40°C
1.85
T_A = +25°C
1.80
3.0 3.5 4.0 4.5 5.0 5.5
SUPPLY VOLTAGE (V)
Typical Operating Characteristics
SUPPLY CURRENT vs. SUPPLY VOLTAGE
(INTERFACE IDLE, ALL OUTPUTS OFF,
R_SET = 360Ω)
3.70
3.65
T_A = +125°C
3.60
T_A = +85°C
3.55
T_A = -40°C
T_A = +25°C
3.50
3.0 3.5 4.0 4.5 5.0 5.5
SUPPLY VOLTAGE (V)
SUPPLY CURRENT vs. SUPPLY VOLTAGE
(INTERFACE IDLE, ALL OUTPUTS ON, R_SET = 720Ω)
40
T_A = +85°C
35
T_A = +125°C
30
25
20
T_A = +25°C
T_A = -40°C
15
10
3.0 3.5 4.0 4.5 5.0 5.5
SUPPLY VOLTAGE (V)
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