ADM8839ACP Analog Devices Inc, ADM8839ACP Datasheet - Page 9
![IC CHARGE PUMP REG TFT 20LFCSP](/photos/6/52/65293/505-20-lfcsp_sml.jpg)
ADM8839ACP
Manufacturer Part Number
ADM8839ACP
Description
IC CHARGE PUMP REG TFT 20LFCSP
Manufacturer
Analog Devices Inc
Datasheet
1.ADM8839ACPZ-REEL.pdf
(12 pages)
Specifications of ADM8839ACP
Rohs Status
RoHS non-compliant
Applications
Converter, TFT, LCD
Voltage - Input
2.7 ~ 4.2 V
Number Of Outputs
3
Voltage - Output
-15V, 5V, 15V
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
20-LFCSP
For Use With
ADM8839-EVALZ - BOARD EVALUATION FOR ADM8839
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
ADM8839ACPZ
Manufacturer:
ADI/亚德诺
Quantity:
20 000
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.
LDO_ON/OFF
SHDN
OSCILLATOR
GENERATOR
SHUTDOWN
ADM8839
CONTROL
CONTROL
TIMING
LOGIC
Figure 17. Current Boost Configuration
V
DISCHARGE
CC
GND
C5, 2.2µF
REGULATOR
VOLTAGE
TRIPLER
DOUBLE
VOLTAGE
DOUBLER
TRIPLE
VOLTAGE
INVERTER
VOLTAGE
LDO
C1+
C1–
VOUT
LDO_IN
+5VOUT
+5VIN
C2+
C2–
C3+
C3–
+15VOUT
C4+
C4–
–15VOUT
C1, 2.2µF
C2, 0.22µF
C3, 0.22µF
C4, 0.22µF
C8, 0.22µF
C9, 0.22µF
C6, 2.2µF
+15V
–15V
C7, 2.2µF
CURRENT BOOST
CONFIGURATION
CONNECTION
+5V
Rev. C | Page 9 of 12
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).
17.0
16.5
16.0
15.5
15.0
14.5
14.0
Figure 18. +15 V/−15 V Output Voltage vs. Load Current,
0
100
Current Boost Configuration
200
I
LOAD
–15V AT 25°C
+15V AT 25°C
(µA)
300
400
ADM8839
500