Datasheet LTC3331 (Analog Devices) - 6

LTC3331
ELECTRICAL CHARACTERISTICS The
l
denotes the specifications which apply over the specified operating junction temperature range, otherwise specifications are at TA = 25°C (Note 2). VIN = 5V, BAT_IN = BAT_OUT = BB_IN = 3.6V, SHIP = OV, SCAP = 0V unless otherwise specified. SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
VBAL Supercapacitor Balance Point Percentage of SCAP Voltage l 49 50 51 % VIH Digital Input High Voltage Pins: OUT[2:0], SHIP, FLOAT[1:0], LBSEL, IPK[2:0], l 1.2 V UV[3:0] VIL Digital Input Low Voltage Pins: OUT[2:0], SHIP, FLOAT[1:0], LBSEL, IPK[2:0], l 0.4 V UV[3:0] IIH Digital Input High Current Pins: OUT[2:0], SHIP, FLOAT[1:0], LBSEL, IPK[2:0], 0 10 nA UV[3:0] IIL Digital Input Low Current Pins: OUT[2:0], SHIP, FLOAT[1:0], LBSEL, IPK[2:0], 0 10 nA UV[3:0] VOH PGVOUT, Output High Voltage BB_IN = 5V, 1µA Out of Pin l 4.0 V EH_ON Output High Voltage VIN = 6V, 1µA Out of Pin l 3.8 V VOL PGVOUT, EH_ON Output Low Voltage BB_IN = 5V, 1µA into Pin l 0.4 V
Note 1:
Stresses beyond those listed under Absolute Maximum Ratings
Note 3:
TJ is calculated from the ambient TA and power dissipation PD may cause permanent damage to the device. Exposure to any Absolute according to the following formula: TJ = TA + (PD • θJA). Maximum Rating condition for extended periods may affect device
Note 4:
Dynamic supply current is higher due to gate charge being reliability and lifetime. delivered at the switching frequency.
Note 2:
The LTC3331 is tested under pulsed load conditions such that
Note 5:
The PGVOUT Rising threshold is equal to the sleep threshold. See TJ ≈ TA. The LTC3331E is guaranteed to meet specifications from 0°C to VOUT specification. 85°C. The LTC3331I is guaranteed over the –40°C to 125°C operating
Note 6:
These quiescent currents include the contribution from the internal junction temperature range. Note that the maximum ambient temperature resistor divider at the BAT_OUT pin as BAT_OUT must be tied to BB_IN for consistent with these specifications is determined by specific operating all applications. conditions in conjunction with board layout, the rated package thermal impedance and other environmental factors.
Note 7:
The buck-boost operating voltage is further constrained to a narrower range by the programmed float voltage and the selected low battery disconnect and connect thresholds.
TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, unless otherwise noted. VIN Quiescent Current in UVLO VIN Quiescent Current in Sleep Buck-Boost Quiescent Current in vs VIN vs VIN Sleep vs BB_IN
2200 6000 2500 BAT_OUT TIED TO BB_IN 2000 2250 125°C 1800 125°C 5000 2000 1600 1750 1400 4000 125°C 1500 1200 (nA) 85°C (nA) 85°C (nA) 3000 1250 I VIN1000 I VIN 85°C I BB_IN 25°C 800 1000 25°C 2000 600 25°C 750 –40°C 400 –40°C 500 1000 –40°C 200 250 0 0 0 0 3 6 9 12 15 18 3 6 9 12 15 18 2.1 2.4 2.7 3 3.3 3.6 3.9 4.2 VIN (V) VIN (V) BB_IN (V) 3331 G01 3331 G02 3331 G03 3331fc 6 For more information www.linear.com/LTC3331 Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Order Information Pin Configuration Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Operation Applications Information Package Description Revision History Typical Application Related Parts