参数资料
型号: ADM8839ACPZ
厂商: Analog Devices Inc
文件页数: 9/12页
文件大小: 0K
描述: IC CHARGE PUMP REG TFT 20LFCSP
产品变化通告: Product Discontinuance 27/Oct/2011
标准包装: 1
应用: 转换器,TFT,LCD
输入电压: 2.7 V ~ 4.2 V
输出数: 3
输出电压: -15V,5V,15V
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 20-VFQFN 裸露焊盘,CSP
供应商设备封装: 20-LFCSP-VQ
包装: 托盘
配用: ADM8839-EVALZ-ND - BOARD EVALUATION FOR ADM8839
ADM8839
It is possible to configure the ADM8839 to supply up to 400 μA
on the ±15 V outputs by changing its configuration slightly, as
shown in Figure 17.
C5, 2.2μF
The configuration in Figure 17 can supply up to 400 μA of
current on both the +15 V and the ?15 V outputs. If the load on
the ±15 V does not draw any current, the voltage on the ±15 V
outputs can rise up to ±16.5 V (see Figure 18). In this
configuration, VOUT (Pin 2) is connected to +5VIN (Pin 5).
ADM8839
V CC
VOLTAGE
DOUBLER
C1+
C1–
C1, 2.2μF
17.0
OSCILLATOR
LDO
VOLTAGE
VOUT
LDO_IN
CURRENT BOOST
CONFIGURATION
CONNECTION
C6, 2.2μF
16.5
16.0
+15V AT 25°C
LDO_ON/OFF
CONTROL
LOGIC
REGULATOR
+5VOUT
+5VIN
+5V
15.5
–15V AT 25° C
C7, 2.2μF
DOUBLE
C2+
VOLTAGE
C2–
C2, 0.22μF
15.0
TRIPLER
TRIPLE
C3+
TIMING
C3–
C3, 0.22μF
14.5
GENERATOR
+15VOUT
+15V
SHDN
SHUTDOWN
CONTROL
DISCHARGE
VOLTAGE
INVERTER
C4+
C4–
C8, 0.22μF
C4, 0.22μF
14.0
0
100
200 300
I LOAD (μA)
400
500
GND
–15VOUT
–15V
C9, 0.22μF
Figure 18. +15 V/?15 V Output Voltage vs. Load Current,
Current Boost Configuration
Figure 17. Current Boost Configuration
Rev. C | Page 9 of 12
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