PRODUCT DATASHEET
AAT3193
ChargePump
TM
3-Channel Charge-Pump LED Driver
Electrical Characteristics
1
IN = EN = 3.6V; C
IN
= 1μF; C
OUT
= 1μF; C
CP
= 1μF; R
SET
= 14.3kΩ; T
A
=-40°C to 85°C unless otherwise noted. Typical
values are at T
A
= 25°C.
Symbol
Description
Conditions
Min
2.7
EN/SET or EN/PWM = IN; V
D1
= V
D2
= V
D3
=
IN, excluding I
D1
-I
D3
EN/SET or EN/PWM = IN; I
D1
= I
D2
= I
D3
=
FS, excluding I
D1
-I
D3
; V
IN
– V
F
= 1.5V
Operating, I
D1
= I
D2
= I
D3
= FS; D1, D2 and
D3 = OPEN
IN = 5.5V; EN/SET or EN/PWM = GND
100
0.9
115
150
18
1.0
1.0
20
±3
1.3
1.3
2.4
125
22
1.56
1.56
Typ
Max
5.5
0.6
1.5
4.5
1
Units
V
Input Power Supply
IN
Input Voltage Range
I
IN
Input Operating Current
mA
I
IN(SHDN)
Input Shutdown Current
Charge Pump Section
I
OUT
OUT Maximum Output Current
f
OSC
Charge Pump Oscillator Frequency
V
IN_(TH)
Charge Pump Mode Hysteresis
μA
mA
MHz
mV
μs
mA
%
mA
mA
mA
mV
0.65
I
D1
= I
D2
= I
D3
= 20mA; Excluding AAT3193-4,
PWM Option
EN/SET or EN/PWM = IN
DATA = 1; V
IN
- V
F
= 1.5V
DATA = 1; V
IN
- V
F
= 1.5V
DATA = 15; V
IN
- V
F
= 1.5V
DATA = 8; V
IN
- V
F
= 1.5V
DC = 10%; f
PWM
= 10kHz; V
IN
- V
F
= 1.5V
I
D1
= I
D2
= I
D3
= 20mA
1.15
250
t
OUT
Output Start-Up Time
AAT3193-1/-2/-4: LED Current Sink Outputs
D1 - D3 Current Accuracy
I
D_(MAX)
ΔI
D_(MAX)
D1 - D3 Current Matching
D1 - D3 Current Accuracy (AAT3193-1
I
D_(DATA15)
only)
D1 - D3 Current Accuracy (AAT3193-2
I
D_(DATA8)
only)
D1 - D3 Current Accuracy (AAT3193-4
I
D_(10%)
only)
D1- D3 Charge Pump Mode Transition
V
D_(TH)
Threshold
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
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