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| AAT3192 Datasheet, PDF (4/17 Pages) Advanced Analogic Technologies – Low-Cost, 2-/3-Channel Charge-Pump LED Drivers | |||
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AAT3192/93
Low-Cost, 2-/3-Channel
Charge-Pump LED Drivers
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
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
AAT3192/93-1/-2/-4: LED Current Sink Outputs
ID_(MAX)
ÎID_(MAX)
ID_(DATA15)
D1 - D3 Current Accuracy
D1 - D3 Current Matching
D1 - D3 Current Accuracy
(AAT3192/93-1 only)
ID_(DATA8)
D1 - D3 Current Accuracy
(AAT3192/93-2 only)
ID_(10%)
D1 - D3 Current Accuracy
(AAT3192/93-4 only)
VD_(TH)
D1- D3 Charge Pump Mode
Transition Threshold
Conditions
EN = IN, ID1 = ID2 = ID3 =
OFF (WLED Test Mode)
EN = IN, ID1 = ID2 = ID3 = FS
Operating, ID1 = ID2 = ID3=
OPEN; IN = 5V
EN/SET or EN/PWM = GND
ID1 = ID2 = ID3= 20mA
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%; VIN - VF = 1.5V
ID1 = ID2 = ID3 = 20mA
Min Typ Max Units
2.7
5.5
V
5
mA
1.5 mA
4.5 mA
1
μA
100
mA
0.65 0.9 1.15 MHz
115 250 mV
150
μs
17.6 19.6 21.6 mA
±3
%
1.0 1.3 1.56 mA
1.0 1.3 1.56 mA
2.5
mA
150
mV
1. The AAT3192/93 are guaranteed to meet performance specification over the -40°C to 85°C operating temperature range and are
assured by design, characterization and correlation with statistical process controls.
4
3193.2007.05.1.0
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