AAT2860 Datasheet, PDF (5/23 Pages) Advanced Analogic Technologies – Backlight/Flash LED Driver and Multiple LDO Lighting Management Unit

PRODUCT DATASHEET
AAT2860
ChargePump^TM Backlight/Flash LED Driver and Multiple LDO Lighting Management Unit
Electrical Characteristics¹
V_IN = 3.6V; C_IN = 4.7µF; C_OUT = C_{LDO(A, B, C)} = 2.2μF; C1 = C2 = 1µF; T_A = -40°C to +85°C, unless otherwise noted.
Typical values are T_A = 25°C.
Symbol Description
LDO Regulators
ΔV_LDO[A/B/C]/
V_LDO[A/B/C]
LDOA, LDOB, LDOC Output
Voltage Tolerance
I_{LDO[A/B/C](MAX)}
LDOA, LDOB, LDOC Maximum
Load Current
V_{LDO[A/B/C](DO)}
LDOA, LDOB, LDOC Dropout
Voltage²
∆V_LDO/
V_LDO*∆V_IN
PSRR_[A/B/C]
Line Regulation
LDOA, LDOB, LDOC Power
Supply Rejection Ratio
R_{LDO_(DCHG)}
LDOA, LDOB, LDOC Auto-
Discharge Resistance
I²C Logic and Control Interface
V_IL
SDA, SCL, LED_SEL, FL_LVL,
LDO_SEL Input Low Threshold
V_IH
SDA, SCL, LED_SEL, FL_LVL,
LDO_SEL Input High Threshold
I_IN
SDA, SCL, LED_SEL, FL_LVL,
LDO_SEL Input Leakage Current
f_SCL
t_LOW
t_HIGH
t_{HD_STA}
t_{SU_STA}
t_{SU_DAT}
t_{HD_DAT}
t_{SU_STO}
t_BUF
SCL Clock Frequency
SCL Clock Low Period
SCL Clock High Period
Hold Time START Condition
Setup Time for Repeat START
SDA Data Setup Time
SDA Data HOLD Time
Setup Time for STOP Condition
Bus Free Time Between STOP
and START Conditions
Conditions
I_LDO = 1mA to 300mA; T_A = 25°C
I_LDO = 1mA to 300mA; T_A = -40°C to +85°C
V_LDO[A/B/C] ≥ 2.7V; I_LDO = 150mA
V_IN = (V_LDO[A/B/C] + 1V) to 5V
I_LDO[A/B/C] =10mA, 1kHz
2.7V ≤ V_IN ≤ 5.5V
2.7V ≤ V_IN ≤ 5.5V
SDA = SCL = LED_SEL = FL_LVL = LDO_SEL = 5V
Min
-1.5
-3
300
1.4
-1
0
1.3
0.6
0.6
0.6
500
0.5
0.6
1.3
Typ
75
0.09
40
20
0.4
Max Units
+1.5 %
+3
%
mA
150 mV
%/V
dB
Ω
V
V
1
µA
400 kHz
µs
µs
µs
µs
ns
µs
µs
µs
1. The AAT2860 is guaranteed to meet performance specifications over the -40°C to +85°C operating temperature range and is assured by design, characterization, and correla-
tion with statistical process controls.
2. VDO[A/B/C] is defined as VIN – LDO[A/B/C] when LDO[A/B/C] is 98% of nominal.
2860.2008.05.1.0
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