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| AAT3192 Datasheet, PDF (5/17 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
AAT3192/93-3: LED Current Sink Outputs
ID_(MAX) D1 - D3 Current Accuracy
ÎID_(MAX) D1 - D3 Current Matching
ID_(DATA4) D1 - D3 Current Accuracy
VD_(TH)
D1- D3 Charge Pump Mode
Transition Threshold
AAT3192/93-1/-2/-3: EN/SET and S2Cwire Control
VENH
EN Input High Threshold Voltage
VENL
EN Input Low Threshold Voltage
IEN(LKG) EN Input Leakage Current
tEN/SET(OFF) EN/SET Input OFF Timeout
tEN/SET(LAT) EN/SET Input Latch Timeout
tEN/SET(LOW) EN/SET Input LOW Time
tENSET(H-MIN) EN/SET Minimum High Time
tENSET(H-MAX) EN/SET Maximum High Time
AAT3192/93-4: EN/PWM Current Control
VENH
VENL
IEN(LKG)
tPWM(ON)
tEN/PWM
fPWM
EN/PWM Input High Threshold Voltage
EN/PWM Input Low Threshold Voltage
EN/PWM Input Leakage Current
PWM Control Turn-on Delay
EN/PWM Input OFF Timeout
PWM Control Frequency
Conditions
RSET = 10.7kΩ; DATA = 1;
VIN - VF = 1.5V
RSET = 10.7 kΩ; DATA = 1;
VIN - VF = 1.5V
RSET = 10.7kΩ; DATA = 4;
VIN - VF = 1.5V
RSET = 10.7kΩ;
ID1 = ID2 = ID3 = 20mA
EN/SET = IN = 5V
EN/PWM = IN = 5V
Duty Cycle = 80%
Min Typ Max Units
17.6 19.6 21.6 mA
±3
%
0.72 0.9 1.1 mA
150
mV
1.4
V
0.4
V
-1
1
μA
500 µs
500 µs
0.3
75
µs
50
ns
75
µs
1.4
V
0.4
V
-1
1
μA
2
µs
0.15
1
ms
50 kHz
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.
3193.2007.05.1.0
5
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