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| AAT3193 Datasheet, PDF (4/18 Pages) Advanced Analogic Technologies – 3-Channel Charge-Pump LED Driver | |||
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ChargePumpTM
PRODUCT DATASHEET
AAT3193
3-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
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
AAT3193-1/-2/-4: LED Current Sink Outputs
ID_(MAX)
ÎID_(MAX)
D1 - D3 Current Accuracy
D1 - D3 Current Matching
ID_(DATA15)
D1 - D3 Current Accuracy (AAT3193-1
only)
ID_(DATA8)
D1 - D3 Current Accuracy (AAT3193-2
only)
ID_(10%)
D1 - D3 Current Accuracy (AAT3193-4
only)
VD_(TH)
D1- D3 Charge Pump Mode Transition
Threshold
Conditions
EN/SET or EN/PWM = IN; VD1 = VD2 = VD3 =
IN, excluding ID1-ID3
EN/SET or EN/PWM = IN; ID1 = ID2 = ID3 =
FS, excluding ID1-ID3; VIN â VF = 1.5V
Operating, ID1 = ID2 = ID3 = FS; D1, D2 and
D3 = OPEN
IN = 5.5V; EN/SET or EN/PWM = GND
ID1 = ID2 = ID3= 20mA; Excluding AAT3193-4,
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 = ID3 = 20mA
Min
2.7
0.65
18
1.0
1.0
Typ Max Units
5.5
V
0.6
1.5
mA
4.5
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 AAT3193 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
3193.2008.07.1.3
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