WM8311GEB/V Wolfson Microelectronics, WM8311GEB/V Datasheet - Page 270

• Manufacturer Part Number: WM8311GEB/V
• Description: POWER MANAGEMENT SUBSYSTEM, 121BGA
• Manufacturer: Wolfson Microelectronics

Specifications of WM8311GEB/V

• Supply Voltage: 5.5V
• No. Of Step-down Dc - Dc Converters: 4
• No. Of Ldo Regulators: 7
• Digital Ic Case Style: BGA
• No. Of Pins: 121
• No. Of Regulated Outputs: 9
• Operating Temperature Range: -40°C To
• Rohs Compliant: Yes
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

WM8311
REGISTER
R30745
(7819h)
LDO11/EPE
Control
Register 7819h LDO11/EPE Control
w
ADDRESS
15:13
BIT
11:8
7:5
4:2
1:0
LDO11_ON_SL
LDO11_ON_V
EPE2_ON_SL
EPE1_ON_SL
USB100MA_S
TARTUP[1:0]
LABEL
SEL[3:0]
OT[2:0]
OT[2:0]
OT[2:0]
DEFAULT
0000
000
000
000
00
LDO11 ON Slot select
000 = Do not enable
001 = Enable in Timeslot 1
010 = Enable in Timeslot 2
011 = Enable in Timeslot 3
100 = Enable in Timeslot 4
101 = Enable in Timeslot 5
110 = Controlled by Hardware Enable 1
111 = Controlled by Hardware Enable 2
LDO11 ON Voltage select
0.80V to 1.55V in 50mV steps
0h = 0.80V
1h = 0.85V
2h = 0.90V
…
Eh = 1.50V
Fh = 1.55V
EPE2 ON Slot select
000 = Do not enable
001 = Enable in Timeslot 1
010 = Enable in Timeslot 2
011 = Enable in Timeslot 3
100 = Enable in Timeslot 4
101 = Enable in Timeslot 5
110 = Controlled by Hardware Enable 1
111 = Controlled by Hardware Enable 2
EPE1 ON Slot select
000 = Do not enable
001 = Enable in Timeslot 1
010 = Enable in Timeslot 2
011 = Enable in Timeslot 3
100 = Enable in Timeslot 4
101 = Enable in Timeslot 5
110 = Controlled by Hardware Enable 1
111 = Controlled by Hardware Enable 2
Sets the device behaviour when starting up under USB
power, when USB_ILIM = 010b (100mA)
00 = Normal
01 = Soft-Start
10 = Only start if BATTVDD > 3.1V
11 = Only start if BATTVDD > 3.4V
In the 1X modes, if the battery voltage is less than the
selected threshold, then the device will enable trickle
charge mode instead of executing the start-up request.
The start-up request is delayed until the battery voltage
threshold has been met.
DESCRIPTION
PP, December 2009, Rev 3.0
REFER TO
Pre-Production
270