Datasheet

TPS65020
www.ti.com SLVS607C –SEPTEMBER 2005– REVISED SEPTEMBER 2011
RECOMMENDED OPERATING CONDITIONS (continued)
over operating free-air temperature range (unless otherwise noted)
MIN NOM MAX UNIT
Inductor at L1
(2)
2.2 3.3 μH
C
I(DCDC1)
Input Capacitor at V
I(DCDC1)
(2)
10 μF
C
O(DCDC1)
Output Capacitor at VDCDC1
(2)
10 22 μF
I
O(DCDC2)
Output current at L2 1000 mA
Inductor at L2
(2)
2.2 3.3 μH
C
I(DCDC2)
Input Capacitor at VDCDC2
(2)
10 μF
C
O(DCDC2)
Output Capacitor at VDCDC2
(2)
10 22 μF
I
O(DCDC3)
Output current at L3 800 mA
Inductor at L3
(2)
2.2 3.3 μH
C
I(DCDC3)
Input Capacitor at VDCDC3
(2)
10 μF
C
O(DCDC3)
Output Capacitor at VDCDC3
(2)
10 22 μF
C
I(VCC)
Input Capacitor at VCC
(2)
1 μF
C
i(VINLDO)
Input Capacitor at VINLDO
(2)
1 μF
C
O(VLDO1-2)
Output Capacitor at VLDO1, VLDO2
(3)
2.2 μF
I
O(VLDO1-2)
Output current at VLDO1, VLDO2 200 mA
C
O(VRTC)
Output Capacitor at VRTC
(3)
4.7 μF
T
A
Operating ambient temperature -40 85 °C
T
J
Operating junction temperature -40 125 °C
Resistor from VINDCDC3, VINDCDC2, VINDCDC1 to VCC used for filtering
(4)
1 10 Ω
(2) See applications section for more information.
(3) See applications section for more information.
(4) Up to 3 mA can flow into VCC when all 3 converters are running in PWM. This resistor causes the UVLO threshold to be shifted
accordingly.
ELECTRICAL CHARACTERISTICS
VINDCDC1 = VINDCDC2 = VINDCDC3 = VCC = VINLDO = 3.6 V, VBACKUP = 3 V, T
A
= –40°C to 85°C, typical values are
at T
A
= 25°C (unless otherwise noted)
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
CONTROL SIGNALS : SCLK, SDAT (INPUT), DCDC1_EN, DCDC2_EN, DCDC3_EN, LDO_EN
V
IH
High level input voltage Rpullup = 4.7 kΩ, pulled to VRTC 1.3 VCC V
V
IL
Low level input voltage Rpullup = 4.7 kΩ, pulled to VRTC 0 0.4 V
I
H
Input bias current 0.01 0.1 μA
CONTROL SIGNALS : HOT_RESET
V
IH
High level input voltage 1.3 VCC V
V
IL
Low level input voltage 0 0.4 V
Pull up resistor at HOT_RESET, connected 1000 kΩ
to VCC
t
deglitch
Deglitch time at HOT_RESET 25 30 35 ms
CONTROL SIGNALS : LOWBAT, PWRFAIL, RESPWRON, INT, SDAT (OUTPUT)
V
OH
High level output voltage 6 V
V
OL
Low level output voltage I
IL
= 5 mA 0 0.3 V
Duration of low pulse at RESPWRON External capacitor 1 nF 100 ms
internal charge / discharge current on pin used for generating RESPWRON delay 1.7 2 2.3 μA
ICONST
TRESPWRON
TRESPWR internal lower comparator threshold on pin used for generating RESPWRON delay 0.225 0.25 0.275 V
ON_LOWT TRESPWRON
H
TRESPWR internal upper comparator threshold on pin used for generating RESPWRON delay 0.97 1 1.103 V
ON_UPTH TRESPWRON
Copyright © 2005–2011, Texas Instruments Incorporated Submit Documentation Feedback 3
Product Folder Link(s) : TPS65020