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参数资料
| 型号： | MAX8608ZETD+T |
| 厂商： | Maxim Integrated |
| 文件页数： | 3/11页 |
| 文件大小： | 0K |
| 描述： | IC LED DRVR WT/OLED BCKLT 14TDFN |
| 标准包装： | 2,500 |
| 拓扑： | PWM，升压（升压） |
| 输出数： | 2 |
| 内部驱动器： | 是 |
| 类型 - 主要： | 背光 |
| 类型 - 次要： | OLED，白色 LED |
| 频率： | 770kHz ~ 1.25MHz |
| 电源电压： | 2.7 V ~ 6 V |
| 输出电压： | 26V |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 14-WFDFN 裸露焊盘 |
| 供应商设备封装： | 14-TDFN-EP（3x3） |
| 包装： | 带卷 (TR) |
| 工作温度： | -40°C ~ 85°C |
High-Efficiency, 26V Step-Up Converters for Main
and Subdisplays Using OLEDs and/or White LEDs
ELECTRICAL CHARACTERISTICS (continued)
(V IN = 3.0V, V OVP = 20V, L1 = 22μH, C OVP = 1μF, C COMP = 0.01μF, R COMP = 10k ? , R SENSE = 13 ? , V CTRL = 1.6V, T A = -40°C to
+85°C, unless otherwise noted. Typical values are at T A = +25°C.) (Note 1)
PARAMETER
CONDITIONS
MAX8608Z
MIN
310
TYP
327
MAX
345
UNITS
FB_ Maximum Voltage Clamp
V CTRL = 3V
MAX8608Y, ENA = GND, ENB = IN
310
327
345
mV
MAX8608Y, ENA = IN , T A ≤ +25°C
322
340
358
FBA, FBB to COMP
Transconductance
COMP Input Resistance to GND
V COMP = 1.5V, T A = -40°C to start of derating function
In shutdown or overvoltage lockout
30
60
20
90
μS
k ?
OSCILLATOR
Operating Frequency
Maximum Duty Cycle
Minimum Duty Cycle
FSEL = GND
FSEL = IN
CTRL = IN, FBA = FBB = GND
In regulation at light loads
0.77
385
92
1.0
500
96
14
1.25
660
MHz
kHz
%
%
LX, OUTA, OUTB SWITCHES
LX On-Resistance
1.2
2.4
?
LX Leakage Current
V LX = 28V, CTRL =
GND
T A = +25°C
T A = +85°C
0.01
1
1
μA
LX Current Limit
OUTA and OUTB Switch On-
Resistance
OUTA and OUTB Current Limit
Duty cycle = 90%, T A = -40°C to +85°C
ENA = GND, ENB
T A = +25°C
500
150
700
7
300
0.01
900
14
450
1
mA
?
mA
OUTA Off-Leakage
= IN, V OVP = 25V,
μA
V OUTA = 0V
T A = +85°C
1
OUTB Off-Leakage
ENA = IN, ENB =
GND, V OVP = 25V,
V OUTB = 0V
T A = +25°C
T A = +85°C
0.01
1
1
μA
OVP Cap Discharge Time
FSEL = GND
FSEL = IN
8
16
ms
Note 1: All devices are 100% production tested at T A = +25°C. Specifications over the operating temperature range are guaranteed
by design and characterization.
Note 2: V D1 is the diode forward-voltage drop of diode D1 in Figure 1.
_______________________________________________________________________________________
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