参数资料
型号: MAX1621EEE+T
厂商: Maxim Integrated Products
文件页数: 19/20页
文件大小: 0K
描述: IC TEMP SENSOR W/ALARM 16QSOP
标准包装: 2,500
应用: LCD 显示器
电流 - 电源: 150µA
电源电压: 3 V ~ 5.5 V
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 16-SSOP(0.154",3.90mm 宽)
供应商设备封装: 16-QSOP
包装: 带卷 (TR)
Digitally Adjustable LCD Bias Supplies
2V
TO
12V
R1
360k
R8
10k
C3
10 μ F
L1
220 μ H
D3 1N6263 (ANY SCHOTTKY)
C6
100pF
3V
TO
5.5V
R2
100k
C1
0.1 μ F
C2
0.1 μ F
3
5
11
7
4
1
2
6
12
TO REF
BATT U1
POK
V DD MAX1620
POL MAX1621
SHDN (SUS)
DN (SDA)
UP (SCL)
REF
AGND
LX
DHI
DLO
PGND
DOUT
FB
LCDON
14
16
15
13
10
9
8
RS
470 ?
R3
300k
D1
MBRS0540+
Q1
MMBT4401LT1
R5
2.2M
R4
300k
C5
10 μ F
R6
150k
R7
150k
Q1
MMBT2907
12.5V
TO
23.5V OUT
VOUTSW
( ) ARE FOR MAX1621.
NOTE: CONNECTIONS TO DIGITAL INPUTS NOT SHOWN.
OPTIONAL
Figure 10. Positive Output with Bipolar Switching Transistor
___________________________________________________Simplified Block Diagram
V DD
AGND
SHDN
BIAS
MAX1620
MAX1621
DN (SDA)
UP (SCL)
DIGITAL
INTERFACE
5-BIT
DAC
DOUT
SHDN (SUS)
POL
REF
1.5V
BANDGAP
REFERENCE
LX
1.0V
DHI
FB
DLO
BATT
ON-TIME
CONTROL
PGND
LCDON
POK
( ) ARE FOR MAX1621 ONLY.
___________________Chip Information
TRANSISTOR COUNT: 341
SUBSTRATE CONNECTED TO AGND
______________________________________________________________________________________
19
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