FUNCTIONAL DEVICE OPERATION
OPERATIONAL MODES
VBATT
CH_PUMP
VGH
VBATT
CPoff
VGATE
VGATE
VGATE
Start Up
VGATE
VBATT
SWGATE
Step-Up
VGATE
Pre Driver
GNDGATE
VGATE_SELECT
VG_duty
Figure 11. Circuit When Using a Charge Pump
Table 15. VGATE Duty Settings
Address : 0010
Ext/Int
Half Freq
RSTB sleep
S_Off_VG
VG_Duty[3]
VG_Duty[2]
VG_Duty[1]
VG_Duty[0]
Duty
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
L
L
L
L
L
L
L
H
L
90 %
86 %
82 %
74 %
58 %
54 %
50 %
42 %
30 %
L
L
H
L
L
H
L
L
H
H
H
H
H
L
L
L
L
H
L
L
H
L
H
H
L
H
H
Table 16. VGATE Voltage Settings and VGATESEL1 and 2 Pin Connection
VGATESEL1
VGATESEL2
VGATE [V]
GND
GND
GND
VBATT
GND
6.0
5.5
5.0
4.5
VBATT
VBATT
VBATT
18730
Analog Integrated Circuit Device Data
Freescale Semiconductor
23
FREESCALE [ Freescale ]
