LP3923_15 Datasheet, PDF (17/37 Pages) Texas Instruments – Cellular Phone Power Management Unit

LP3923
www.ti.com
EN_APU_TSD
PS_HOLD_DELAY
SNVS567B – APRIL 2010 – REVISED MAY 2013
Table 9. Register 0x1C – MISC Control 1
0 - do not start PMU automatically after TSD event
1 - start PMU automatically after TSD event
0 - PMU powerdown after PS_HOLD has been low for 35 ms
1 - PMU powerdown after PS_HOLD has been low for 350 ms
LDO OUTPUT VOLTAGE PROGRAMMING
The following table summarizes the supported output voltages for LP3923. Default voltages after start-up
sequences have been highlighted in bold.
Data Code LDO_Vx_OP[x]
8h'00
8h'01
8h'02
8h'03
8h'04
8h'05
8h'06
8h'07
8h08
8h'09
8h'0A
8h'0B
8h'0C
8h'0D
8h'0E
8h'0F
(1) See Table 1.
LDOx [V]
1.20
1.25
1.30
1.35
1.40
1.45
1.50
1.55
1.60
1.65
1.70
1.75
1.80 ⁽¹⁾
1.85
1.90
2.00
Data Code LDO_Vx_OP[x]
8h'10
8h'11
8h'12
8h'13
8h'14
8h'15
8h'16
8h'17
8h'18
8h'19
8h'1A
8h'1B
8h'1C
8h'1D
8h'1E
8h'1F
LDOx [V]
2.20
2.40
2.50
2.60
2.65
2.70
2.75
2.80
2.85
2.90
2.95
3.00 ⁽¹⁾
3.05
3.10
3.20
3.3
CHARGING CURRENT PROGRAMMING
Table 10. The following table summarizes the supported currents for LP3923.
PROG_ ICHG[4]
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
PROG_ ICHG[3]
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
0
PROG_ ICHG[2]
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
0
PROG_ ICHG[1]
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
PROG_ ICHG[0]
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
ICHG (mA)
50
100
150
200
250
300
350
400 (Default)
450
500
550
600
650
700
750
800
850
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Product Folder Links: LP3923
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