Diodes AL3159 Manuel d'utilisateur télécharger pdf (Page 3)

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

NEW PRODUCT

Absolute Maximum Ratings (Note 2)

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

CTL1,2,3

CTL1, CTL2, CTL3 to GND Voltage -0.3 to V

+0.3 V

OUT

Maximum DC Output Current 270 mA

Operating Junction Temperature Range 150

°C

LEAD

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

Electrical Characteristics (T

= 25°C, V

= 3.6V, C

= C

OUT

= 2.2µF, C

= 1µF Unless otherwise noted)

Symbol Parameter Test Conditions Min Typ. Max Unit

Quiescent Current

1x Mode, 3.0≤V

≤5.5, Active,

No Load Current

0.3 0.6

2x Mode, 3.0≤V

≤5.5, Active,

No Load Current

2 5

SHDN

Shutdown Current CTL1, CTL2 and CTL3 = 0 1 µA

SINK

Current Accuracy (Note 3)

19 20 21 mA

D-Match

Current Matching Between Any Two

Current Sink Inputs (Note 4)

: D1:D9 = 3.6V 1 2 %

out

Open Loop V

OUT

Resistance

1x mode 0.5

2 x mode 4.5

1x to 2x Transition Threshold at Any

SINK

= 20mA 150 mV

Mode Transition Hysteresis 250 mV

Soft-Start Time 100 µs

Fsw Switching Frequency 1.2 MHz

CTL1, 2,3 (L)

CTL1,2,3 Threshold Low V

= 2.7V 0.4 V

CTL1,2,3(H)

CTL1,2,3 Threshold High V

= 5.5V 1.4 V

CTL1,2,3

CTL1,2,3 Off Timeout 200 µs

UVLO V

Under-Voltage Lockout 1.8 2 2.2 V

CTL1,2,3

CTL1,2,3 Input Leakage -1 1 µA

SHDN

Thermal shutdown Protection 160

°C

HYS

Thermal shutdown hysteresis 10

°C

Thermal Resistance Junction-to-

Ambient

QFN3030-20 (Note 5)

C/W

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.

1 2 3 4 5 6 7 8 9 10

Commentaires sur ces manuels

Pas de commentaire

Diodes AL3159 Manuel d'utilisateur Page 3

Commentaires sur ces manuels

Produits connexes et manuels pour Matériel Diodes AL3159