[AK1541]
< Address 4: Cp_fast >
D19 D18 D17
D16
D[15:13]
D[12:0]
Addres
0
0
0
FASTEN
CP2[2:0]
FAST[12:0]
0100
FASTEN: Enables or disables the Fast Lockup mode.
D16
0
Function
Remarks
The switchover settings specified in CP2[2:0] and FAST[12:0] are disabled.
The switchover settings specified in CP2[2:0] and FAST[12:0] are enabled.
1
CP2[2:0]: Sets the current value for the charge pump for the Fast Lockup mode
(Charge Pump 2).
The minimum Charge Pump 2 current (CP2_min) is determined by the following formula:
CP2_min = 5.7 / Resistance connected to the [BIAS] pin
Charge Pump 2 minimum current (CP2_min) = CP2_min x (CP2 setting + 4)
Charge Pump 2 current [mA]
CP2[2:0]
000
22kΩ
1.04
1.30
1.55
1.81
2.07
2.33
2.59
2.85
27kΩ
0.84
1.06
1.27
1.48
1.69
1.90
2.11
2.32
33kΩ
0.69
0.86
1.04
1.21
1.38
1.55
1.73
1.90
001
010
011
100
101
110
111
MS1043-E-05
24
2013/03
AKM [ ASAHI KASEI MICROSYSTEMS ]
