TLC5973 Datasheet, PDF (6/34 Pages) Texas Instruments – TLC5973 3-Channel, 12-Bit, PWM Constant-Current LED Driver with Single-Wire Interface (EasySet)

TLC5973
SBVS225B – MARCH 2013 – REVISED MAY 2014
www.ti.com
6.6 Switching Characteristics
At T_A = –40°C to 85°C, V_CC = 3.0 V to 5.5 V, C_L = 15 pF, R_L = 110 Ω, and V_LED = 5.0 V, unless otherwise noted.
Typical values are at T_A = 25°C and V_CC = 5.0 V.
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
t_R0
Rise time
t_R1
t_F0
Fall time
t_F1
t_D0
Propagation delay
t_D1
SDO
OUTn (on → off)
SDO
OUTn (off → on)
SDI↑ to SDO↑
OUT0↓ to OUT1↓, OUT1↓to OUT2↓,
OUT0↑ to OUT1↑, OUT1↑to OUT2↑
2
6
12
200
400
2
6
12
200
400
30
50
25
t_WO
Shift data output one pulse duration
SDO↑ to SDO↓
f_OSC
Internal GS oscillator frequency
15
25
45
8
12
16
UNIT
ns
ns
ns
ns
ns
ns
ns
MHz
6.7 Typical Characteristics
At T_A = 25°C and V_CC = 12 V, unless otherwise noted.
100
26.0
10
1
0
10.4
5.21
2.60
3.47
1.74
2.08
1.30 _1.16
1.04
1.49
10
20
30
40
50
I_OLC, Output Current (mA)
C001
50
40
R_IREF = 1.5 k
R_IREF = 1.1 k
30
R_IREF = 1.8 k
R_IREF = 2.7 k
20
R_IREF = 27 k _{RIREF = 10 k} ^RIREF ^{= 5.1 k}
10
0
0
0.5
V_CC = 5 V
1
1.5
2
Output Voltage (V)
2.5
3
C002
Figure 1. Reference Resistance vs Output Current (OUTn)
Figure 2. Output Current vs Output Voltage (OUTn)
6
Submit Documentation Feedback
Product Folder Links: TLC5973
Copyright © 2013–2014, Texas Instruments Incorporated