TLC5970 Datasheet, PDF (4/48 Pages) Texas Instruments – 3-Channel, 12-Bit, PWM LED Driver with Buck DC/DC Converter and Differential Signal Interface

TLC5970
SBVS140 – MARCH 2010
www.ti.com
RECOMMENDED OPERATING CONDITIONS
At T_A = –40°C to +85°C, unless otherwise noted.
DC CHARACTERISTICS
V_CC
V_CC1
Supply voltage
V_I
V_I1
Voltage at input terminal
V_I2
V_ID
Differential voltage at input terminal⁽¹⁾
V_IH
High level input voltage
V_IL
Low level input voltage
V_O
Voltage at output terminal
I_OLC
Constant output sink current
I_OH
High level output current
I_OL
Low level output current
T_A
Operating free-air temperature
T_J
Operating junction temperature
AC CHARACTERISTICS
f_CLK
T_WH/T_WL
T_SU
T_H
N_ROM
Data shift clock frequency
Pulse duration
Setup time
Hold time
Number of EEPROM write cycles
VCC = SWOFF = VREG = VREFIF = FB
(no buck conver operation mode)
FB (buck converter operation mode)
SDTA, SDTB, SCKA, SCKB
VROM for data writing
SDTA-SDTB, SCKA-SCKB
SWOFF
SWOFF
OUT0 to OUT2
OUT0 to OUT2
SDTY, SDTZ, SCKY, SCKZ
SDTY, SDTZ, SCKY, SCKZ
SCKA-SCKB
SCKA-SCKB
(SDTA-SDTB)-(SCKA-SCKB) ↑
(SDTA-SDTB)-(SCKA-SCKB) ↑
At each address
MIN
10
4.75
7
–7
18.5
–12
0.7 × VREG
GND
–30
–40
–40
12
5
3
TLC5970
NOM
MAX
36
5.5
17
12
19
19.5
12
VREG
0.3 × VREG
17
150
30
+85
+125
20
10
(1) Differential input voltage is measured at the noninverting terminal with respect to the inverting terminal.
UNIT
V
V
V
V
V
V
V
V
V
mA
mA
mA
°C
°C
MHz
ns
ns
ns
Times
4
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