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参数资料
| 型号： | MAX1573ETE+T |
| 厂商： | Maxim Integrated |
| 文件页数： | 4/9页 |
| 文件大小： | 0K |
| 描述： | IC LED DRVR WHITE BCKLGT 16-TQFN |
| 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： | 线性（LDO），PWM，降压（降压），升压（升压），切换式电容器（充电泵） |
| 输出数： | 4 |
| 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： | 2.7 V ~ 5.5 V |
| 输出电压： | 5V |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 16-WQFN 裸露焊盘 |
| 供应商设备封装： | 16-TQFN-EP（4x4） |
| 包装： | 带卷 (TR) |
| 工作温度： | -40°C ~ 85°C |
White LED 1x/1.5x Charge Pump in
UCSP and Thin QFN
Typical Operating Characteristics (continued)
(V IN = 3.6V, EN1 = EN2 = IN, C IN = C1 = C2 = C OUT = 1μF, R SET = 7.50k Ω , T A = +25°C, unless otherwise noted.)
STARTUP AND SHUTDOWN RESPONSE
MAX1573 toc10
DIMMING RESPONSE
MAX1573 toc11
V EN_
I IN
5V/
div
50mA/
V ENI1
2V/
div
div
V OUT
LED_ = 4 ? 17mA
2V/
div
I OUT
50mA/
div
EN1 = EN2
500 μ s/div
5 μ s/div
EN2 = IN
Pin Description
PIN
NAME
FUNCTION
TQFN
UCSP
1
2
3
4
5
6
B2
A2
A3
—
A4
B4
C2P
OUT
EN1
N.C.
EN2
SET
Transfer Capacitor 2 Positive Connection. See the Component Selection section for capacitor value.
Output. Bypass to GND with a 1μF ceramic capacitor. Connect to the anodes of all the LEDs. OUT is
high impedance during shutdown.
Enable, Dimming Control Input 1. EN1 and EN2 control shutdown and the LED current. See Table 1.
No Connection
Enable, Dimming Control Input 2. EN1 and EN2 control shutdown and the LED current. See Table 1.
Bias-Current Set Input. Connect a resistor from SET to GND to set the LED bias current (I SET ). I SET =
600mV/R SET .
LED2 Cathode Connection and Charge-Pump Feedback. The charge pump regulates to the lowest
7
C4
LED2
voltage on any of the LED_ inputs. Connect LED2 to the cathode of one output LED. Connect LED2 to
IN if this LED is not populated.
LED1 Cathode Connection and Charge-Pump Feedback. The charge pump regulates to the lowest
8
D4
LED1
voltage on any of the LED_ inputs. Connect LED1 to the cathode of one output LED. Connect LED1 to
IN if this LED is not populated.
LED4 Cathode Connection and Charge-Pump Feedback. The charge pump regulates to the lowest
9
C3
LED4
voltage on any of the LED_ inputs. Connect LED4 to the cathode of one output LED. Connect LED4 to
IN if this LED is not populated.
LED3 Cathode Connection and Charge-Pump Feedback. The charge pump regulates to the lowest
10
D3
LED3
voltage on any of the LED_ inputs. Connect LED3 to the cathode of one output LED. Connect LED3 to
IN if this LED is not populated.
11
12
D2
—
GND
N.C.
Ground
No Connection
4
_______________________________________________________________________________________
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