LP3918 Datasheet, PDF (6/30 Pages) National Semiconductor (TI) – Battery Charge Management and Regulator 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,
VBATT =VIN1/2, BATT,HF_PWR
All other Inputs
Junction Temperature (T_J-MAX)
Storage Temperature
Max Continuous Power Dissipation
(P_D-MAX) (Note 3)
ESD (Note 4)
Batt, VIN1, VIN2, HF_PWR,
CHG_IN, PWR_ON
All other pins
−0.3 to +6.5V
−0.3 to +6V
−0.3 to V_BATT +0.3V,
max 6.0V
150°C
−40°C to +150°C
Internally Limited
8kV HBM
2kV HBM
HF_PWR, PWR_ON
ACOK_N, SDA, SCL, RX_EN,
TX_EN, TCXO_EN, PS_HOLD,
RESET_N
All other pins
Junction Temperature (T_J)
Ambient Temperature (T_A)
0V to 5.5V
0V to (V_LDO2 + 0.3V)
0V to (V_BATT + 0.3V)
−40°C to +125°C
-40 to 85°C
Thermal Properties (Note 9)
Junction to Ambient Thermal
Resistance θ_JA
Jedec Standard Thermal PCB
4L Cellphone Board
37°C/W
66°C/W
Operating Ratings (Notes 1, 2)
CHG_IN
VBATT =VIN1/2, BATT
4.5 to 6.0V
3.0 to 5.5V
General Electrical Characteristics
Unless otherwise noted, V_IN ( = VIN1 = VIN2 = BATT) = 3.6V, GND = 0V, C_VIN1-2=10µF, C_LDOX=1µF. 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, T_a = T_J = −40°C to +125°C. (Note 6)
Symbol
Parameter
Condition
Limit
Typ
Units
Min
Max
I_Q(STANDBY)
Standby Supply Current
V_IN= 3.6V, UVLO on, internal logic
2
circuit on, all other circuits off
10
µA
Power Monitor Functions
Battery Under-Voltage Lockout
V_UVLO-R
Under Voltage Lock-out
Thermal Shutdown
V_IN Rising
2.85
2.7
3.0
V
TSD Threshold
(Note 7)
160
°C
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