LP3941A Datasheet, PDF (5/32 Pages) National Semiconductor (TI) – Cellular Phone Power Management Unit

Absolute Maximum Ratings (Notes 1,
2)
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
CHG-IN
IN1–6, BATT, SDA, SCL, ON,
HF-PWR, PS-HOLD, SYS,
COMP1_IN, COMP2_IN,
CHG_IN, BSNS, V_O5-EN,
V_O6-EN, LED1–3,
RTC_ALARM, BU_BAT, V_RTC,
RESET, BATT_SENSE.
REFBYP, ON, PS-HOLD,
COMP1_OUT, COMP2_OUT
to GND
V_O1 to GND
V_O2, V_O3 to GND
V_O4, V_O5 to GND
V_O6, V_O7 to GND
V_O8, V_O9 to GND
V_O10, V_O11 to GND
GND to GND SLUG
−0.3V to +12V
−0.3V to +6V
−0.3V to +V_BAT + 0.3V
−0.3V to +V_IN1 + 0.3V
−0.3V to +V_IN2 + 0.3V
−0.3V to +V_IN3 + 0.3V
−0.3V to +V_IN4 + 0.3V
−0.3V to +V_IN5 + 0.3V
−0.3V to +V_IN6 + 0.3V
±0.3V
Maximum Continuous Power Dissipation
(P_{D_MAX}) (Note 3)
Junction Temperature (T_J-MAX)
Storage Temperature Range
3.07W
150˚C
−65˚C to +150˚C
Maximum Lead Temperature
(Soldering)
(Note 4)
ESD Ratings (Note 5)
All Pins
2 kV HBM
200V MM
Operating Ratings (Notes 1, 2)
V_IN
V_EN
Junction Temperature (T_J) Range
Ambient Temperature (T_A) Range
(Note 6)
3.0V to 6.0V
0V to (V_IN + 0.3V)
−40˚C to +125˚C
−40˚C to +85˚C
Thermal Properties (Note 7)
Junction-to-Ambient Thermal
Resistance (θ_JA)
26˚C/W
Electrical Characteristics
Unless otherwise noted, V_IN = 2.5V to 5.5V, C_IN (IN1–6) = 4.7 µF, C_OUT (V_O1 and V_O9) = 4.7 µF, C_OUT (V_O2, V_O3, V_O7, V_O8,
V_O10 and V_O11) = 2.2 µF, C_OUT (V_O4 to V_O6) = 1 µF, C_OUT (V_RTC) = 1 µF ceramic, C_BYP = 0.1 µF. Typical values and limits
appearing in normal type apply for T_J = 25˚C. Limits appearing in boldface type apply over the entire junction temperature
range for operation, −40 to +125˚C. (Notes 2, 8, 9, 10)
Symbol
Parameter
Condition
Min
Typ
Max
Units
I_Q
Shutdown Supply Current
V_BATT = 2.1V, UVLO on, internal
logic generator on, V_RTC off, all other
14
µA
circuits off.
No Load Supply Current, LDO V_BATT = 3.6V, LDOs V_O1, V_O3 and
1 & 3 & 5 on
V_O5 on, back-up battery charger and
310
µA
V_RTC on, charger disconnected,
comparator 1 & 2 on.
No Load Supply Current
V_BATT = 3.6V, All LDOs on, charger
500
µA
disconnected.
BATTERY UNDER VOLTAGE LOCKOUT
V_UVLO-R Under Voltage Lock-Out
V_UVLO-F Under Voltage Lock-Out
V_TH-POR Power-On Reset Threshold
THERMAL SHUTDOWN
V_BATT Rising
V_BATT Falling
V_BATT Falling Edge
2.91
3.1
3.32
V
2.15
2.49
2.85
V
1
1.7
2.3
V
Threshold
Hysteresis
160
˚C
10
OUTPUT CAPACITORS
C_OUT
Capacitance
ESR
1
20
µF
5
500
mΩ
LOGIC AND CONTROL INPUTS
V_IL
Input Low Level
PS-HOLD, ON, BSNS, HF-PWR,
RTC_ALARM, SDA, SCL, V_O5-EN,
V_O6-EN.
2.5V ≤ V_BATT ≤ 5.5V
0.4
V
5
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