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参数资料
| 型号： | MAX8596ZETA+T |
| 厂商： | Maxim Integrated |
| 文件页数： | 5/10页 |
| 文件大小： | 0K |
| 描述： | IC LED DRIVR WHITE BCKLGT 8-TDFN |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 2,500 |
| 恒定电流： | 是 |
| 拓扑： | PWM，升压（升压） |
| 输出数： | 1 |
| 内部驱动器： | 是 |
| 类型 - 主要： | 背光 |
| 类型 - 次要： | 白色 LED |
| 频率： | 1MHz |
| 电源电压： | 2.6 V ~ 6 V |
| 输出电压： | 36V |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 8-WDFN 裸露焊盘 |
| 供应商设备封装： | 8-TDFN-EP（3x3） |
| 包装： | 带卷 (TR) |
| 工作温度： | -40°C ~ 85°C |
High-Efficiency, 36V Step-Up Converters
with T A Derating Option for 2 to 9 White LEDs
Typical Operating Characteristics (continued)
(Circuit of Figure 1, V IN = 3.6V, I LED = 25mA, L = 22μH, C IN = 2.2μF, C OUT = 0.1μF, C COMP = 0.1μF, R SENSE = 13 ? , 4 LEDs, T A = +25°C,
unless otherwise noted.)
CTRL STEP RESPONSE
MAX8595X toc07
DIRECT-PWM DIMMING RESPONSE
MAX8595X toc08
V CTRL
1V/div
V CTRL
2V/div
32kHz 50%
DUTY CYCLE
0
0
I IN
I LED
V OUT
20ms/div
100mA/div
0
40mA/div
0
10V/div
0
V IN
V OUT
I LED
10 μ s/div
20mV/div
AC-COUPLED
0
500mV/div
AC-COUPLED
0
10mA/div
0
Pin Description
PIN
1
2
3
4
5
6
7
8
—
NAME
OUT
IN
CTRL
CS
COMP
GND
PGND
LX
EP
FUNCTION
Overvoltage Sense. When V OUT is greater than 38V (typ), the internal n-channel MOSFET turns off
until V OUT drops below 36V (typ), then the IC reenters soft-start. Connect a 0.1μF ceramic capacitor
from OUT to ground. In shutdown, V OUT is one diode drop below V IN .
Input Voltage Supply. The input voltage range is 2.6V to 6.0V. Connect a 2.2μF ceramic capacitor
from IN to GND.
Brightness Control Input. The voltage applied to CTRL controls LED brightness. Varying the voltage
from 0.24V to 1.65V (1.72V for the MAX8596X) adjusts the brightness from dim to 100% brightness,
respectively. Any voltage above 1.65V (1.72V) does not increase brightness. Hold CTRL below
100mV to shut down the IC after an 8.2ms delay.
Current-Sense Feedback Input. Connect a resistor from CS to GND to set the LED bias current. The
voltage at CS regulates to V CTRL / 5 or 0.330V (0.343V for the MAX8596X), whichever is lower.
Compensation Input. Connect a 0.1μF ceramic capacitor (C COMP ) from COMP to GND. C COMP
stabilizes the converter, controls soft-start, and lowpass filters direct PWM dimming at CTRL. C COMP
discharges to 0V through an internal 20k ? resistor in shutdown.
Ground. Connect to PGND and the exposed pad directly under the IC.
Power Ground. Connect to GND and the exposed pad directly under the IC.
Inductor Connection. Connect LX to the node between the inductor and the Schottky diode. LX is
high impedance in shutdown.
Exposed Pad. Connect to a large ground plane for maximum package heat dissipation. Connect
directly to GND and PGND under the IC.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX8596ZEVKIT | 功能描述:LED 照明开发工具 Evaluation Kit for the MAX8595X MAX8595Z MAX8596X MAX8596Z RoHS:否 制造商:Fairchild Semiconductor 产品:Evaluation Kits 用于:FL7732 核心: 电源电压:120V 系列: 封装: |
| MAX8597ETP+ | 功能描述:DC/DC 开关控制器 Step-Down Controller RoHS:否 制造商:Texas Instruments 输入电压:6 V to 100 V 开关频率: 输出电压:1.215 V to 80 V 输出电流:3.5 A 输出端数量:1 最大工作温度:+ 125 C 安装风格: 封装 / 箱体:CPAK |
| MAX8597ETP+T | 功能描述:DC/DC 开关控制器 Step-Down Controller RoHS:否 制造商:Texas Instruments 输入电压:6 V to 100 V 开关频率: 输出电压:1.215 V to 80 V 输出电流:3.5 A 输出端数量:1 最大工作温度:+ 125 C 安装风格: 封装 / 箱体:CPAK |
| MAX8597EVKIT | 制造商:Maxim Integrated Products 功能描述:LOW-DROPOUT WIDE-INPUT-VOLTAGE ST - Rail/Tube |
| MAX8598ETE | 制造商:Maxim Integrated Products 功能描述: |
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