AL9910 datasheet(4/16 Pages) DIODES

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AL9910/AL9910A/AL9910-5

UNIVERSAL HIGH VOLTAGE HIGH BRIGHTNESS LED DRIVER

AL9910/AL9910A/AL9910-5

Document number: DS35103 Rev. 7 - 2

4 of 16

www.diodes.com

February 2012

Electrical Characteristics

(Over recommended operating conditions unless otherwise specified - TA = 25°C)

Specifications apply to AL9910, AL9910A and AL9910-5 unless otherwise specified

Symbol

Parameter

Conditions

Min

Typ.

Max

Unit

IINSD

Shut-down mode supply current

Pin PWM_D to GND,

VIN = VIN(MIN) (Note 6)

AL9910

AL9910-5

0.50

AL9910A

0.65

1.2

VDD

Internally regulated voltage

VIN = VIN(MIN)~500V, (Note 6)

lDD(ext) = 0, Gate pin open

AL9910

AL9910-5

7.0

7.5

8.0

AL9910A

9.5

10.5

IDD(ext)

VDD current available for external

circuitry

VIN = VIN(Min) to 100V (Notes 6 & 7)

1.0

UVLO

VDD under voltage lockout

threshold

VDD rising

AL9910

AL9910-5

6.4

6.7

AL9910A

8.4

9.6

∆UVLO

VDD under voltage lockout

hysteresis

VDD falling

AL9910

AL9910-5

500

AL9910A

750

RPWM_D PWM_D pull-down resistance

VPWM_D = 5V

150

200

250

Ω

VCS(HI) Current sense threshold voltage

Full ambient temperature

range (Note 8)

AL9910

AL9910A

225

250

275

AL9910-5

237.5

250

262.5

VGATE(HI) GATE high output voltage

IOUT = 10mA

VDD -0.3

VDD

VGATE(LO) GATE low output voltage

IOUT = -10mA

0.3

fOSC

Oscillator frequency

ROSC = 1MΩ

kHz

ROSC = 226kΩ

100

120

DMAXhf

Maximum Oscillator PWM Duty

Cycle

fPWMhf = 25kHz, at GATE,

CS to GND.

100

VLD

Linear Dimming pin voltage range

Full ambient temperature range (Note 8),

VIN = 20V

250

tBLANK

Current sense blanking interval

VCS = 0.45V, VLD = VDD

160

250

440

tDELAY

Delay from CS trip to GATE lo

VIN = 20V, VLD = 0.15,

VCS = 0 to 0.22V after TBLANK

300

tRISE

GATE output rise time

CGATE = 500pF

tFALL

GATE output fall time

CGATE = 500pF

TSD

Thermal shut down

150

°C

TSDH

Thermal shut down hysteresis

θJA

Thermal Resistance Junction-to-

Ambient

SO-8 (Note 9)

110

°C/W

SO-8EP (Note 10)

θJC

Thermal Resistance Junction-to-

Case

SO-8 (Note 9)

°C/W

SO-8EP (Note 10)

Notes:

6. VIN(MIN) for the AL9910 is 15V and for the AL9910A it is 20V.

7. Also limited by package power dissipation limit, whichever is lower.

8. Full ambient temperature range for AL9910-5S, AL9910AS and AL9910S is -40 to +85°C; for AL9910-5SP, AL9910ASP and AL9910SP is

-40 to +105°C.

9. Device mounted on FR-4 PCB (25mm x 25mm 1oz copper, minimum recommended pad layout on top. For better thermal performance, larger

copper pad for heat-sink is needed.

10. Device mounted on FR-4 PCB (51mm x 51mm 2oz copper, minimum recommended pad layout on top layer and thermal vias to bottom layer

ground plane. For better thermal performance, larger copper pad for heat-sink is needed.

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