参数资料
型号: KIT18730EPEVBE
厂商: Freescale Semiconductor
文件页数: 22/35页
文件大小: 0K
描述: KIT FOR MPC18730 PMIC
标准包装: 1
主要目的: DC/DC,LDO 步降
输出及类型: 5,非隔离
稳压器拓扑结构: 降压
频率 - 开关: 200kHz
板类型: 完全填充
已供物品: 板,软件
已用 IC / 零件: MPC18730
相关产品: MPC18730EPR2-ND - IC PMIC PROGR 5-OUTPUTS 64-QFN
MPC18730EP-ND - IC PMIC PROGR 5-OUTPUTS 64-QFN
FUNCTIONAL DEVICE OPERATION
OPERATIONAL MODES
Table 14. Output Voltage of SREG3
Address: 0111 (34)
B7
L
L
L
L
L
H
H
H
H
H
H
H
B6
L
L
L
L
H
L
L
L
L
L
H
H
B5
L
L
L
H
L
L
L
L
L
H
L
H
B4
L
L
H
L
L
L
L
L
H
L
L
H
B3
L
H
L
L
L
L
L
H
L
L
L
H
B2
H
L
L
L
L
L
H
L
L
L
L
H
CP Off
X
X
X
X
X
X
X
X
X
X
X
X
EXTG On
X
X
X
X
X
X
X
X
X
X
X
X
SREG3 [V] (35)
2.091
2.102
2.125
2.170
2.260
2.440
2.451
2.462
2.485
2.530
2.620
2.800
Notes
34. All combinations of input are not included.
35. The SREG1 and 3 output voltages are determined by the combination of external resistances connected to
SREGC1 and 3 (65.14K ? between SREGO1 and SREGC1, 34.86K ? between SREGC1 and GND, 73.84K ?
between SREGO3 and SREGC3, and 26.16K ? between SREGC3 and GND).
VG GENERATOR
VBATT
VGATE
Start Up
VGATE
VGATE
VBATT
VGATE
Step-Up
SWGATE
Pre Driver
GNDGATE
VG_select
VG_duty
Figure 10. Circuit when using a Step-Up Converter
When WAKE (int) goes High from Low, the start-up circuit
raises the VB voltage and outputs it to VGATE, then outputs
the VGATE voltage when PGOOD1 (int) goes High. The
charge pump circuit can be used for both Ni_mh and Li_ion
by setting the necessary registers. The charge pump circuit is
disabled by default.
The VGATE voltage can be set in the range of 6 V to 4.5 V
according to the combination of VGATESEL1 and 2 pin
voltage settings.
When using a charge pump, please refer to Figure 11 .
18730
Analog Integrated Circuit Device Data
22
Freescale Semiconductor
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