AAT3192/93

Low-Cost, 2-/3-Channel

Charge-Pump LED Drivers

4

3193.2007.05.1.0

Electrical Characteristics

1

IN = EN = 3.6V; C

Typical values are at T

Symbol

Description

Conditions

Min

Typ

Max

Units

Input Power Supply

IN

Input Voltage Range

2.7

5.5

V

EN = IN, I

5mA

OFF (WLED Test Mode)

I

IN

Input Operating Current

EN = IN, I

1.5

mA

Operating, I

4.5

mA

OPEN; IN = 5V

I

IN(SHDN)

Input Shutdown Current

EN/SET or EN/PWM = GND

1

μA

Charge Pump Section

I

OUT

OUT Maximum Output Current

100

mA

f

OSC

Charge Pump Oscillator Frequency

0.65

0.9

1.15

MHz

V

IN_(TH)

Charge Pump Mode Hysteresis

I

115

250

mV

t

OUT

Output Start-Up Time

EN/SET or EN/PWM = IN

150

μs

AAT3192/93-1/-2/-4: LED Current Sink Outputs

I

D_(MAX)

D1 - D3 Current Accuracy

DATA = 1; V

17.6

19.6

21.6

mA

ΔI

D_(MAX)

D1 - D3 Current Matching

DATA = 1; V

±3

%

I

D_(DATA15)

D1 - D3 Current Accuracy

DATA = 15; V

1.0

1.3

1.56

mA

(AAT3192/93-1 only)

I

D_(DATA8)

D1 - D3 Current Accuracy

DATA = 8; V

1.0

1.3

1.56

mA

(AAT3192/93-2 only)

I

D_(10%)

D1 - D3 Current Accuracy

DC = 10%; V

2.5

mA

(AAT3192/93-4 only)

V

D_(TH)

D1- D3 Charge Pump Mode

I

150

mV

Transition Threshold

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.