Datasheet

TPS65910 , TPS65910A , TPS65910A3 , TPS659101
TPS659102 , TPS659103 , TPS659104 , TPS659105
TPS659106, TPS659107, TPS659108, TPS659109
www.ti.com SWCS046U –MARCH 2010–REVISED JUNE 2014
5.12 Backup Battery Charger
over operating free-air temperature range (unless otherwise noted)
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
Backup battery charging current VBACKUP = 0 to 2.4 V, BBCHEN = 1 350 500 700 µA
End-of-charge backup battery
VCC7 = 3.6 V, BBSEL = 10 –3% 3.15 +3%
voltage
(1)
VCC7 = 3.6 V, BBSEL = 00 –3% 3 +3%
V
VCC7 = 3.6 V, BBSEL = 01 –3% 2.52 +3%
VBAT –
VCC7 = 3.6 V, BBSEL = 11 VBAT
0.3 V
Ground current On mode 10 µA
(1) Note:
• BBSEL = 10, 00, or 01 intended to charge battery or superCap
• BBSEL = 11 intended to charge capacitor
5.13 VRTC LDO
over operating free-air temperature range (unless otherwise noted)
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
Input voltage V
IN
On mode 2.5 5.5
V
Back-up mode 1.9 5.5
DC output voltage V
OUT
On mode, 3.0 V < V
IN
< 5.5 V 1.78 1.83 1.88
V
Back-up mode, 2.3 V ≤ V
IN
≤ 2.6 V 1.72 1.78 1.84
Rated output current I
OUTmax
On mode 20
mA
Back-up mode 0.1
DC load regulation On mode, I
OUT
= I
OUTmax
to 0 50
mV
Back-up mode, I
OUT
= I
OUTmax
to 0 50
DC line regulation On mode, V
IN
= 3.0 V to V
INmax
at I
OUT
= I
OUTmax
2.5
mV
Back-up mode, V
IN
= 2.3 V to 5.5 V at I
OUT
=
25
I
OUTmax
Transient load regulation On mode, V
IN
= V
INmin
+ 0.2 V to V
INmax
50
(1)
mV
I
OUT
= I
OUTmax
/2 to I
OUTmax
in 5 µs
and I
OUT
= I
OUTmax
to I
OUTmax
/2 in 5 µs
Transient line regulation On mode, V
IN
= V
INmin
+ 0.5 V to V
INmin
in 30 µs 25
(1)
mV
And V
IN
= V
INmin
to V
INmin
+ 0.5 V in 30 µs, I
OUT
=
I
OUTmax
/2
I
OUT
= 0, V
IN
rising from 0 up to 3.6 V, at V
OUT
=
Turn-on time 2.2 ms
0.1 V up to V
OUTmin
V
IN
= V
INDC
+ 100 mV
pp
tone, V
INDC+
= V
INmin
+
Ripple rejection
0.1 V to V
INmax
at I
OUT
= I
OUTmax
/2
f = 217 Hz 55
dB
f = 50 kHz 35
Ground current Device in ACTIVE state 23
µA
Device in BACKUP or OFF state 3
(1) These parameters are not tested. They are used for design specification only.
Copyright © 2010–2014, Texas Instruments Incorporated Specifications 19
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