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参数资料
| 型号： | TLC5945RHBT |
| 厂商： | Texas Instruments |
| 文件页数： | 4/30页 |
| 文件大小： | 0K |
| 描述： | IC LED DRIVER LINEAR 32-QFN |
| 标准包装： | 250 |
| 恒定电流： | 是 |
| 拓扑： | PWM |
| 输出数： | 16 |
| 内部驱动器： | 是 |
| 类型 - 主要： | 背光 |
| 类型 - 次要： | 颜色 |
| 频率： | 30MHz |
| 电源电压： | 3 V ~ 5.5 V |
| 输出电压： | 17V |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 32-VFQFN 裸露焊盘 |
| 供应商设备封装： | 32-QFN 裸露焊盘（5x5） |
| 包装： | 带卷 (TR) |
| 工作温度： | -40°C ~ 85°C |
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TLC5945
www.ti.com
SLVS755 – MARCH 2007
ELECTRICAL CHARACTERISTICS
V CC = 3 V to 5.5 V, T A = -40 ° C to 85 ° C (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX UNI
T
V OH
High-level output
I OH = –1 mA, SOUT
V CC –0.5
V
voltage
V OL
Low-level output
I OL = 1 mA, SOUT
0.5
V
voltage
V I = V CC or GND; BLANK, TEST, GSCLK, SCLK, SIN, XLAT pin
–1
1
I I
Input current
V I = GND; MODE pin
–1
1
μ A
V I = V CC ; MODE pin
50
No data transfer, all output OFF, V O = 1 V, R (IREF) = 10 k ?
0.9
6
I CC
Supply current
No data transfer, all output OFF, V O = 1 V, R (IREF) = 1.3 k ?
Data transfer 30 MHz, all output ON, V O = 1 V, R (IREF) = 1.3 k ?
5.2
16
12
25
mA
Data transfer 30 MHz, all output ON, V O = 1 V, R (IREF) = 640 ?
30
60
I O(LC)
Constant output current All output ON, V O = 1 V, R (IREF) = 640 ?
54
61
69 mA
I lkg
Leakage output current
All output OFF, V O = 15 V, R (IREF) = 640 ? , OUT0 to OUT15
All output ON, V O = 1 V, R (IREF) = 640 ? , OUT0 to OUT15,
–20 ° C to 85 ° C (1)
± 1
0.1
± 4
μ A
? I O(LC0)
Constant sink current
error
All output ON, V O = 1 V, R (IREF) = 640 ? , OUT0 to OUT15 (1)
All output ON, V O = 1 V, R (IREF) = 480 ? , OUT0 to OUT15,
–20 ° C to 85 ° C (1)
± 1
± 1
± 8
± 6
%
All output ON, V O = 1 V, R (IREF) = 480 ? , OUT0 to OUT15 (1)
± 1
± 8
? I O(LC1)
? I O(LC2)
? I O(LC3)
? I O(LC4)
T (TEF)
V (LED)
Constant sink current
error
Constant sink current
error
Line regulation
Load regulation
Thermal error flag
threshold
LED open detection
threshold
Device to device, averaged current from OUT0 to OUT15,
R (IREF) = 1920 ? (20 mA) (2)
Device to device, averaged current from OUT0 to OUT15,
R (IREF) = 480 ? (80 mA) (2)
All output ON, V O = 1 V, R (IREF) = 640 ? OUT0 to OUT15,
V CC = 3 V to 5.5 V (3)
All output ON, V O = 1 V, R (IREF) = 480 ? OUT0 to OUT15,
V CC = 3 V to 5.5 V (3)
All output ON, V O = 1 V to 3 V, R (IREF) = 640 ? , OUT0 to OUT15 (4)
All output ON, V O = 1 V to 3 V, R (IREF) = 480 ? , OUT0 to OUT15 (4)
Junction temperature (5)
150
–2,
0.4
–2.7,
2
± 1
± 1
± 2
± 2
0.3
± 4
± 4
± 4
± 6
± 6
± 8
170
0.4
%
%
%/
V
%/
V
° C
V
V (IREF)
Reference voltage
output
R I(REF) = 640 ?
1.20
1.24
1.28
V
(1)
(2)
(3)
(4)
(5)
4
The deviation of each output from the average of OUT0-15 constant current. It is calculated by Equation 1 in Table 1 .
The deviation of average of OUT1-15 constant current from the ideal constant-current value. It is calculated by Equation 2 in Table 1 .
The ideal current is calculated by Equation 3 in Table 1 .
The line regulation is calculated by Equation 4 in Table 1 .
The load regulation is calculated by Equation 5 in Table 1 .
Not tested. Specified by design.
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