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TC62D776CFG Schematic ( PDF Datasheet ) - Toshiba

Teilenummer TC62D776CFG
Beschreibung 16-Channel Constant-Current LED Driver
Hersteller Toshiba
Logo Toshiba Logo 




Gesamt 30 Seiten
TC62D776CFG Datasheet, Funktion
TOSHIBA CMOS Integrated Circuit Silicon Monolithic
TC62D776CFG
TC62D776CFG
16-Channel Constant-Current LED Driver of the 3.3-V and 5-V Power Supply
The TC62D776CFG is a constant-current driver for LED and
LED display lighting applications.
The output current from each of the 16 outputs is programmable
via a single external resistor.
The TC62D776CFG contains a 16-channel shift register, a
16-channel latch, a 16-channel AND gate and a 16-channel
constant-current output.
Fabricated with a CMOS process, the TC62D776CFG allows
high-speed data transfer.
It operates with a 3.3- or 5-V power supply.
.
SSOP24-P-300-1.00B
Weight : 0.32g Typ.
Features
Supply voltage
16-output built-in
: VDD = 3.0 to 5.5 V
Output current setup range
: IOUT = 1.5 to 90 mA
Constant current output accuracy (@ REXT = 1.2 kΩ, VOUT = 1.0 V, VDD = 3.3 V, 5.0 V)
: S rank; between outputs ± 1.5 % (max)
: S rank; between devices ± 1.5 % (max)
: N rank; between outputs ± 2.5 % (max)
: N rank; between devices ± 2.5 % (max)
Output voltage
: VOUT = 17 V (max)
I/O interface
: CMOS interfaces (Schmitt trigger input)
Data transfer frequency
: fSCK = 25 MHz (max)
Operation temperature range
: Topr = 40 to 85 °C
8-bit (256 steps) current correction function built-in.
1 bit (HC) by the MSB side: Selects the output current range.
7 bit by the LSB side: Output current is adjusted at 128 steps in the range of 11% to 45%. (In the case of HC=1)
Output current is adjusted at 128 steps in the range of 50% to 200%. (In the case of HC=0)
Thermal shutdown function (TSD) built-in.
Output error detection function built-in.
Auto-output error detection and manual-output error detection using commands
Output open detection function (OOD) and output short detection function (OSD) built-in.
Power-on-reset function built-in. (When the power supply is turned on, internal data is reset)
Stand-by function built-in. (IDD = 1μA at standby mode)
Output delay function built-in. (Output switching noise is reduced)
Package
: SSOP24-P-300-1.00B
For detailed part naming conventions, contact your local Toshiba sales representative or distributor.
1
2011-12-07






TC62D776CFG Datasheet, Funktion
TC62D776CFG
The explanation of the function (Basic data input pattern)
Data is serially loaded into the TC62D776CFG using the SIN and SCK inputs. Command selection is
done via the SCK and TRANS inputs.
About the operation of each command
Symbol
Num of SCK at
TRANS=”H”
(Note2)
Operation
S0 0,1 Input of output ON/OFF data.
S1
5,6
Executes output open/short detection manually. (Note1)
Transfers the result of open/short detection to the 16-bit Shift Register. (Note1)
S2 7,8 Input of state setting data (1).
S3
9,10
Input of state setting data (2).
Note 1: When output open/short detection is enabled.
Note 2: SCK pulse trains other than those shown above are not recognized as commands.
S0 command (Input of output ON/OFF data.)
SCK
TRANS
SIN
OUTPUT ON/OFF DATA
The number of SCK pulses at TRANS="H" is 0 or 1.
S1 command (Output open/short detection function manual operation is executed.)
The number of SCK pulses at TRANS="H" is 5 or 6
S2 command (Input of state setting data (1).)
The number of SCK pulses at TRANS="H" is 7 or 8
S3 command (Input of state setting data (2).)
The number of SCK pulses at TRANS="H" is 9 or 10
6 2011-12-07

6 Page









TC62D776CFG pdf, datenblatt
TC62D776CFG
2. In the case of a low setting mode (11% to 45%)
A[6] A[5] A[4] A[3] A[2] A[1] A[0] Current gain(%)
1111111
1111110
1111101
1111100
1111011
1111010
1111001
1111000
1110111
1110110
1110101
1110100
1110011
1110010
1110001
1110000
1101111
1101110
1101101
1101100
1101011
1101010
1101001
1101000
1100111
1100110
1100101
1100100
1100011
1100010
1100001
1100000
1011111
1011110
1011101
1011100
1011011
1011010
1011001
1011000
1010111
1010110
1010101
1010100
1010011
1010010
1010001
1010000
1001111
1001110
1001101
1001100
1001011
1001010
1001001
1001000
1000111
1000110
1000101
1000100
1000011
1000010
1000001
1000000
45.00
44.73
44.46
44.20
43.93
43.66
43.39
43.13
42.86
42.59
42.32
42.06
41.79
41.52
41.25
40.98
40.72
40.45
40.18
39.91
39.65
39.38
39.11
38.84
38.57
38.31
38.04
37.77
37.50
37.24
36.97
36.70
36.43
36.17
35.90
35.63
35.36
35.09
34.83
34.56
34.29
34.02
33.76
33.49
33.22
32.95
32.69
32.42
32.15
31.88
31.61
31.35
31.08
30.81
30.54
30.28
30.01
29.74
29.47
29.20
28.94
28.67
28.40
28.13
A[6] A[5] A[4] A[3] A[2] A[1] A[0] Current gain(%)
0111111
0111110
0111101
0111100
0111011
0111010
27.87
27.60
27.33
27.06
26.80
26.53
0111001
0111000
26.26
25.99
0110111
25.72
0110110
25.46
0110101
25.19
0110100
24.92
0110011
24.65
0110010
24.39
0110001
0110000
0101111
0101110
0101101
0101100
0101011
24.12
23.85
23.58
23.31
23.05
22.78
22.51
0101010
22.24
0101001
21.98
0101000
21.71
0100111
21.44
0100110
21.17
0100101
20.91
0100100
20.64
0100011
20.37
0100010
0100001
0100000
0011111
0011110
0011101
20.10
19.83
19.57
19.30
19.03
18.76
0011100
0011011
18.50
18.23
0011010
17.96
0011001
17.69
0011000
17.43
0010111
17.16
0010110
16.89
0010101
16.62
0010100
0010011
0010010
0010001
0010000
0001111
0001110
16.35
16.09
15.82
15.55
15.28
15.02
14.75
0001101
14.48
0001100
14.21
0001011
13.94
0001010
13.68
0001001
13.41
0001000
13.14
0000111
12.87
0000110
12.61
0000101
0000100
0000011
0000010
0000001
0000000
12.34
12.07
11.80
11.54
11.27
11.00
12 2011-12-07

12 Page





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