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| AAT3192_08 Datasheet, PDF (4/18 Pages) Advanced Analogic Technologies – 2-Channel Charge-Pump LED Driver | |||
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ChargePumpTM
PRODUCT DATASHEET
AAT3192
2-Channel Charge-Pump LED Driver
Electrical Characteristics1
IN = EN = 3.6V; CIN = 1μF; COUT = 1μF; CCP = 1μF; RSET = 14.3kΩ; TA =-40°C to 85°C unless otherwise noted. Typical
values are at TA = 25°C.
Symbol Description
AAT3192-1/2/3/4 Input Power Supply
IN
Input Voltage Range
IIN
Input Operating Current
IIN(SHDN)
Input Shutdown Current
Charge Pump Section
IOUT
OUT Maximum Output Current
fOSC
Charge Pump Oscillator Frequency
VIN_(TH)
Charge Pump Mode Hysteresis
tOUT
Output Start-Up Time
AAT3192-1/-2/-4: LED Current Sink Outputs
ID_(MAX)
ÎID_(MAX)
D1 - D2 Current Accuracy
D1 - D2 Current Matching
ID_(DATA15)
D1 - D2 Current Accuracy
(AAT3192-1 only)
ID_(DATA8)
D1 - D2 Current Accuracy
(AAT3192-2 only)
ID_(10%)
D1 - D2 Current Accuracy
(AAT3192-4 only)
VD_(TH)
D1 - D2 Charge Pump Mode
Transition Threshold
Conditions
EN/SET or EN/PWM = IN; VD1 = VD2 = IN,
excluding ID1-ID2
EN/SET or EN/PWM = IN; ID1 = ID2 = FS,
excluding ID1-ID2; VIN â VF = 1.5V
Operating, ID1 = ID2 = FS; D1 and D2 = OPEN
IN = 5.5V; EN/SET or EN/PWM = GND
ID1 = ID2 = 20mA; Excluding AAT3192-4,
PWM Option
EN/SET or EN/PWM = IN
DATA = 1; VIN - VF = 1.5V
DATA = 1; VIN - VF = 1.5V
DATA = 15; VIN - VF = 1.5V
DATA = 8; VIN - VF = 1.5V
DC = 10%; fPWM = 10kHz; VIN - VF = 1.5V
ID1 = ID2 = 20mA
Min
2.7
0.65
18
1.0
1.0
Typ Max Units
5.5
V
2.5
2.5
mA
7.0
1
μA
100
0.9 1.15
115 250
150
mA
MHz
mV
μs
20 22
mA
±3
%
1.3 1.56 mA
1.3 1.56 mA
2.4
mA
125
mV
1. The AAT3192 is guaranteed to meet performance specification over the -40°C to 85°C operating temperature range and is assured by design, characterization and correlation
with statistical process controls.
4
www.analogictech.com
3192.2008.07.1.3
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