AL3159

HIGH EFFICIENCY 1x/2x CHARGE PUMP

FOR WHITE LED APPLICATIONS

AL3159

Document number: DS35048 Rev. 2 - 2

3 of 10

www.diodes.com

January 2011

© Diodes Incorporated

Symbol

Description

Rating

Unit

ESD HBM

Human Body Model ESD Protection

2

KV

ESD MM

Machine Model ESD Protection

200

V

Input Voltage

-0.3 to 6

V

CTL1, CTL2, CTL3 to GND Voltage

V

Maximum DC Output Current

270

mA

Operating Junction Temperature Range

150

°C

Maximum Soldering Temperature (at leads, 10 sec)

300

°C

Notes:

2. Exceeding Absolute Maximum Ratings will cause permanent damage to the device.

Recommended Operating Conditions

Symbol

Parameter

Min

Max

Unit

Input Voltage

2.7

5.5

V

Operating Ambient Temperature

-40

85

°C

Symbol

Parameter

Test Conditions

Min

Typ.

Max

Unit

Quiescent Current

No Load Current

0.3

0.6

mA

No Load Current

2

5

Shutdown Current

CTL1, CTL2 and CTL3 = 0

1

µA

19

20

21

mA

Current Matching Between Any Two

Current Sink Inputs (Note 4)

1

2

%

1x mode

0.5

Ω

2 x mode

4.5

1x to 2x Transition Threshold at Any

150

mV

Mode Transition Hysteresis

250

mV

Soft-Start Time

100

µs

Fsw

Switching Frequency

1.2

MHz

CTL1,2,3 Threshold Low

0.4

V

CTL1,2,3 Threshold High

1.4

V

CTL1,2,3 Off Timeout

200

µs

UVLO

1.8

2

2.2

V

CTL1,2,3 Input Leakage

-1

1

µA

Thermal shutdown Protection

160

°C

Thermal shutdown hysteresis

10

°C

Thermal Resistance Junction-to-

Ambient

QFN3030-20 (Note 5)

48

Notes: 3. Determined by the average current levels of all active channels

4. Defined as the deviation of any sink current from the average of all active current channels.

5. Device mounted on FR-4 substrate, 2"*2", 2oz copper, double-sided PC board, with minimum recommended pad on top layer and

4 vias to bottom layer.