参数资料
型号: A6268KLPTR-T
厂商: Allegro Microsystems Inc
文件页数: 6/19页
文件大小: 0K
描述: IC LED CTLR AUTOMOBILE 16TSSOP
标准包装: 1
恒定电流:
拓扑: 低端,PWM,SEPIC,降压(降压),升压(升压)
输出数: 1
内部驱动器:
类型 - 主要: 车载,背光
频率: 100kHz ~ 700kHz
电源电压: 5 V ~ 50 V
安装类型: 表面贴装
封装/外壳: 16-TSSOP(0.173",4.40mm)裸露焊盘
供应商设备封装: 16-TSSOP-EP
包装: 标准包装
工作温度: -40°C ~ 150°C
其它名称: 620-1473-6
A6268
Automotive High Current LED Controller
ELECTRICAL CHARACTERISTICS 1 (continued) Valid at T J = –40°C to 150°C, V IN = 5 to 40 V; unless otherwise noted
Characteristics
Symbol
Test Conditions
Min.
Typ.
Max.
Unit
Oscillator
R OSC = 43 k Ω
500
kHz
Oscillator Frequency
f OSC
R OSC = 62 k Ω
R OSC = V REG
315
350
350
385
kHz
kHz
Minimum Oscillator
Frequency 3
f MIN
90
kHz
OSC Pin Voltage
CKOUT Output Delay
OSC Input Low Voltage
OSC Input High Voltage
OSC Input Hysteresis
OSC Watchdog Period
CKOUT Output High Voltage
CKOUT Output Low Voltage
V OSC
t DC
V OIL
V OIH
V Oihys
t OSWD
V COH
V COL
R OSC = 62 k Ω
OSC input rise to CKOUT rise
Between successive rising edges
I OH = –1 mA
I OL = 1 mA
1.15
3.5
300
7
V REG – 1
1.2
150
600
1.25
0.8
V REG
0.4
V
ns
V
V
mV
μ s
V
V
LED Current Sense
Input Bias Current LN (BB mode) 4
I LN
LP = LN = 12 V
130
μ A
Input Bias Current LP (BB
mode) 4
I LP
LP = LN = 12 V
125
μ A
Input Bias Current LN (B mode) 1,4
Input Bias Current LP (B mode) 1,4
Differential Input Voltage (Active)
Input Common-Mode Range (BB mode) 4
I LN
I LP
V IDL
V CMLH
LP = LN = 0 V
LP = LN = 0 V
EN = High, V IDL = V LP – V LN
V LP = V LN
V IN
–1.0
–12
100
V IN + 1
μ A
μ A
mV
V
Input Common-Mode Range (B
Current Error
mode) 4
V CMLL
E ISL
V LP = V LN
[(10 × I LED × R SL ) – 1] × 100
0
–5
1
5
V
%
Switch Current Sense
Input Bias Current
I BIASS
SP = SN = 0 to 2 V
–30
μ A
Maximum Differential Input
Voltage 3
V IDS
V IDS = V SP – V SN with D = 50%
110
150
200
mV
Input Source Current
Input Common-Mode Range
I INS
V CMS
V IDS = 120 mV
V SP = V SN
0
120
2
μ A
V
Diagnostics and Protection
Fault Blank Timer 5
VIN Undervoltage Turn-Off
VIN Undervoltage Hysteresis
VREG Undervoltage Turn-Off
VREG Undervoltage Hysteresis
t FB
V INUV
V INUVhys
V REGUV
V REGUVhys
Start-up
Decreasing V IN
Decreasing V REG
200
2.9
170
3
3.65
300
4.6
400
4.4
400
ms
V
mV
V
mV
Continued on the next page…
Allegro MicroSystems, LLC
115 Northeast Cutoff
Worcester, Massachusetts 01615-0036 U.S.A.
1.508.853.5000; www.allegromicro.com
6
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