参数资料
| 型号： | NCP5810MUTXG |
| 厂商： | ON Semiconductor |
| 文件页数： | 9/13页 |
| 文件大小： | 0K |
| 描述： | IC DRIVER AMOLED DUAL 1W 12-LLGA |
| 产品变化通告： | Product Obsolescence 14/Apr/2010 |
| 标准包装： | 1 |
| 显示器类型： | AMOLED |
| 配置： | 显示矩阵 |
| 电流 - 电源： | 1.5mA |
| 电源电压： | 2.7 V ~ 4.6 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 12-UFLGA 裸露焊盘 |
| 供应商设备封装： | 12-LLGA（3x3） |
| 包装： | 剪切带 (CT) |
| 其它名称： | NCP5810MUTXGOSCT |
NCP5810
DETAILED OPERATING DESCRIPTION
V Bat
Option of powering
L1
2.7 to 5.5 V
CINA
1 m F
AVIN
PVIN
AVIN
CINP
4.7 m F
MPO
4.7 m H
LXP
SWP
SCHOTTKY
VOUTP
VOUTP
BAND GAP
THERMAL
TSD
1.245 V
PROTECTION
ENABLE
True Cut-Off
COUTP
4.7 m F
X5R 10V
FBP
-
ERROR
AMP
FBP
MAX DP
1.260 V
+
OPAMP
-
PWM
COMPP
+
TSD
1
2
3
4
5
6
7
8 RST
Driver
MN1
RAMP
COMP
ONE
SHOT
IPEAK MAX P
SET
SENSE
CURRENT
+
IPEAK
ENABLE
OSC
1.75 Mhz
ENABLE
COMP
-
Ipeak Max Threshold P
EN
-
Ipeak Max Threshold N
400 k
IPEAK MAX N
IPEAK
COMP
+
SENSE
PIVIN
AMP
FBN
FBN
623 mV
ERROR
-
+
OPAMP
+
PWM
COMPN
-
MAX DN
TSD
1
2
3
4
5
6
7
8
RST
CURRENT
MP1
NSR0320
SWN D1
LX2
4.7 m H
R3
VOUTN
COUTN
4.7 m F
X5R 10V
VREF R4
1.260 V
ONE S
SET
AGND
AGND
PGND
PGND
Figure 14. Functional Block Diagram
Detailed Descriptions
The NCP5810 is a dual-output DC/DC converter which
can generate both a positive and a negative voltage. The
output voltage of the inverter is fully configurable using
external feedback resistors. The switching regulator
operates at 1.75 MHz which allows the use of small
inductors and ceramic capacitors. The both converters are
internally compensated which simplifies the design and
reduces the PCB component count. Cycle-by-cycle peak
current limit and thermal provide value added features to
protect the device.
Boost Operation
The internal oscillator provides a 1.75 MHz clock signal
to trigger the PWM controller on each rising edge (SET
signal) which starts a cycle. During this phase the low side
MN1 switch is turned on thus increasing the current
through the inductor L1. The switch current is measured by
the SENSE CURRENT and added to the RAMP COMP
signal. Then PWM COMPP compares the output of the
adder and the signal from ERROR AMP. When the
comparator threshold is exceeded, the MN1 power switch
is turned off until the rising edge of the next clock cycle. In
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