参数资料
型号: MAX8709BETI+T
厂商: Maxim Integrated
文件页数: 5/24页
文件大小: 0K
描述: IC CNTRLR CCFL HI EFF 28-TQFN
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 2,500
类型: CCFL 控制器
频率: 25 ~ 300 kHz
电流 - 电源: 1.5mA
电流 - 输出: 500mA
电源电压: 4.6 V ~ 28 V
工作温度: -40°C ~ 85°C
封装/外壳: 28-WFQFN 裸露焊盘
供应商设备封装: 28-TQFN-EP(5x5)
包装: 带卷 (TR)
High-Efficiency CCFL Backlight
Controller with SMBus Interface
ELECTRICAL CHARACTERISTICS (continued)
(Circuit of Figure 1. V BATT = 12V, V LOT = V REF , V CC = V DD, V SUS = 5.3V, T A = -40°C to +85°C . Typical values are at T A = +25°C,
unless otherwise noted.) (Note 2)
PARAMETER
Lamp-Out Detection Timeout Timer
CONDITIONS
V IFB < 0.1V (Note 1)
MIN
1.14
TYP
MAX
1.30
UNITS
s
SDA, SCL, SUS Input Low Voltage
SDA, SCL, SUS Input High Voltage
2.1
0.8
V
V
SDA, SCL, SUS Input Bias Current
-1
+1
μA
SDA Output Low Sink Current
SCL Serial Clock High Period
SCL Serial Clock Low Period
START Condition Setup Time
START Condition Hold Time
SDA Valid to SCL Rising-Edge Setup Time,
Slave Clocking-In Data
SCL Falling Edge to SDA Transition
V SDA = 0.4V
T HIGH
T LOW
t SU:STA
t HD:STA
t SU:DAT
t HD:DAT
4
4
4.7
4.7
4
250
0
mA
μs
μs
μs
μs
ns
ns
Note 1: Corresponds to 256 DPWM cycles.
Note 2: Specifications to -40°C are guaranteed by design based on final characterization results.
Typical Operating Characteristics
(Circuit of Figure 1. V BATT = 12V, V LOT = V REF , V CC = V DD, V SUS = 5.3V, T A = +25°C, unless otherwise noted.)
LOW INPUT-VOLTAGE
HIGH INPUT-VOLTAGE
OPERATION (V BATT = 8V)
MAX8709 toc01
0V A
0V B
C
0V
OPERATION (V BATT = 20V)
MAX8709 toc02
0V A
0V B
C
0V
D
LINE-TRANSIENT RESPONSE
MAX8709 toc03
A
8V
0V B
0V C
D
0V
D
0V
0V
A: V IFB , 2V/div
B: V VFB , 2V/div
C: V LX1 , 10V/div
D: V LX2 , 10V/div
10 μ s/div
A: V IFB , 2V/div
B: V VFB , 2V/div
C: V LX1 , 10V/div
D: V LX2 , 10V/div
10 μ s/div
A: V BATT , 5V/div
B: V IFB , 2V/div
C: V VFB , 2V/div
D: V LX1 , 10V/div
40 μ s/div
_______________________________________________________________________________________
5
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