参数资料
型号: CAT3614HV2-GT2
厂商: ON Semiconductor
文件页数: 3/12页
文件大小: 0K
描述: IC LED DVR CHRGE PUMP 4CH 12TDFN
标准包装: 2,000
拓扑: 线性(LDO),切换式电容器(充电泵)
输出数: 4
内部驱动器:
类型 - 主要: 背光
类型 - 次要: 白色 LED
频率: 800kHz ~ 1.3MHz
电源电压: 3 V ~ 5.5 V
输出电压: 7V
安装类型: 表面贴装
封装/外壳: 12-WFDFN 裸露焊盘
供应商设备封装: 12-TDFN(3x3)
包装: 带卷 (TR)
工作温度: -40°C ~ 85°C
CAT3614
Table 3. ELECTRICAL OPERATING CHARACTERISTICS
V IN = 3.6 V, EN = High, ambient temperature of 25 ° C (over recommended operating conditions unless specified otherwise).
Symbol
I Q
Parameter
Quiescent Current
Conditions
1x mode, no load
Min
0.3
Typ
0.5
Max
1
Unit
mA
1.5x mode, no load
1
3
8
I QSHDN
Shutdown Current
V EN = 0 V
1
m A
I LED ? ACC
I LED ? DEV
R OUT
LED Current Accuracy
LED Channel Matching
Output Resistance (open loop)
1 mA ≤ I LED ≤ 31 mA
(I LED ? I LEDAVG ) / I LEDAVG
1x mode, I OUT = 100 mA
± 3
± 3
0.4
± 8
± 7
1
%
%
W
1.5x mode, I OUT = 100 mA
2.6
7
F OSC
Charge Pump Frequency
0.8
1
1.3
MHz
I SC_MAX
I IN_MAX
Output short circuit Current Limit
Input Current Limit
V OUT < 0.5 V
1x mode, V OUT > 1 V
30
200
60
300
100
600
mA
mA
EN/DIM Pin
I EN/DIM
? Input Leakage
? 1
1
m A
V HI
V LO
? Logic High Level
? Logic Low Level
1.3
0.4
V
V
T SD
T HYS
V UVLO
Thermal Shutdown
Thermal Hysteresis
Undervoltage lock out (UVLO) threshold
145
10
1.7
165
20
2
175
30
2.4
° C
° C
V
Table 4. RECOMMENDED EN/DIM TIMING (For 3 V ≤ V IN ≤ 5.5 V, over full ambient t emperatur e range ? 40 t o +85 ° C.)
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
T SETP
EN/DIM setup from shutdown
10
m s
T LO
T HI
T OFF
T D
T DEC
EN/DIM program low time
EN/DIM program high time
EN/DIM low time to shutdown
LED current enable
LED current decrement
T SETP
T HI
0.3
0.3
1.5
40
0.1
T OFF
200
m s
m s
ms
m s
m s
EN/DIM
T D
T LO
31 mA 30 mA
LED
Current
T DEC
29 mA
31 mA
Shutdown
1 mA
0 mA
Shutdown
Figure 2. LED Dimming Timing Diagram
http://onsemi.com
3
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