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| 型号： | MAX6964AEG+T |
| 厂商： | Maxim Integrated |
| 文件页数： | 1/23页 |
| 文件大小： | 0K |
| 描述： | IC LED DRIVER LINEAR 24-QSOP |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 2,500 |
| 拓扑： | 开路漏极，PWM |
| 输出数： | 17 |
| 内部驱动器： | 是 |
| 类型 - 主要： | 背光，LED 闪烁器 |
| 类型 - 次要： | RGB，白色 LED |
| 频率： | 400kHz |
| 电源电压： | 2 V ~ 3.6 V |
| 输出电压： | 7V |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 24-SSOP（0.154"，3.90mm 宽） |
| 供应商设备封装： | 24-QSOP |
| 包装： | 带卷 (TR) |
| 工作温度： | -40°C ~ 125°C |
19-3179; Rev 3; 3/05
ATION
AILABL
EVALU E
AV
KIT
17-Output LED Driver/GPO with
Intensity Control and Hot-Insertion Protection
General Description
The MAX6964 I 2 C-compatible serial interfaced periph-
eral provides microprocessors with 17 output ports.
Each output is an open-drain current-sinking output
rated at 50mA and 7V. The outputs are capable of dri-
ving LEDs, or providing logic outputs with external
resistive pullup up to 7V.
Eight-bit PWM current control is also integrated. Four of
the bits are global control and apply to all LED outputs
to provide coarse adjustment of current from fully off to
fully on with 14 intensity steps. Additionally, each output
has an individual 4-bit control, which further divides the
globally set current into 16 more steps. Alternatively,
the current control can be configured as a single 8-bit
control that sets all outputs at once.
Each output has independent blink timing with two blink
phases. LEDs can be individually set to be either on or
off during either blink phase, or to ignore the blink con-
Features
? 400kbps, 2-Wire Serial Interface, 5.5V Tolerant
? 2V to 3.6V Operation
? Overall 8-Bit PWM LED Intensity Control
Global 16-Step Intensity Control
Plus Individual 16-Step Intensity Controls
? Two-Phase LED Blinking
? High Port Output Current—Each Port 50mA (max)
? RST Input Clears the Serial Interface and
Restores Power-Up Default State
? Supports Hot Insertion
? Outputs are 7V-Rated Open Drain
? Low Standby Current (1.2μA (typ), 3.3μA (max))
? Small 4mm x 4mm, 0.8mm High Thin QFN Package
? -40°C to +125°C Temperature Range
Ordering Information
trol. The blink period is controlled by an external clock
(up to 1kHz) on BLINK or by a register. The BLINK
input can also be used as a logic control to turn the
PART
TEMP RANGE
PIN-
PACKAGE
PKG CODE
LEDs on and off, or as a general-purpose input (GPI).
The MAX6964 supports hot insertion. The SDA, SCL,
RST , BLINK, and the slave address input ADO remain
high impedance in power-down (V+ = 0V) with up to 6V
asserted upon them. The output ports remain high
24 Thin QFN
MAX6964ATG -40 ° C to +125 ° C 4mm x 4mm
x 0.8mm
MAX6964AEG -40 ° C to +125 ° C 24 QSOP
T2444-4
—
impedance with up to 8V asserted upon them.
The MAX6964 is controlled through a 2-wire I 2 C
serial interface, and can be configured to one of four
I 2 C addresses.
TOP VIEW
Pin Configurations
Applications
SCL 19
18
17
16
15
14
13
12 O10
LCD Backlights
LED Status Indication
Keypad Backlights
RGB LED Drivers
SDA 20
V+ 21
O16 22
MAX6964
11 O9
10 O8
9 GND
Typical Application Circuit at end of data sheet.
RST 23
AD0 24
8 O7
7 O6
1
2
3
4
5
6
QFN
Pin Configurations continued at end of data sheet.
________________________________________________________________ Maxim Integrated Products
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.
1
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