AP3154 データシートの表示（PDF） - Diodes Incorporated.
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AP3154 Datasheet PDF : 13 Pages
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AP3154
120mA HIGH EFFICIENCY WHITE LED DRIVER
Electrical Characteristics
CIN = COUT = C1 = C2 = 1.0µF; TA = 25°C, VIN = 3.5V. Unless otherwise stated.
Symbol
Description
Conditions
Min
Typ.
1X Mode
IQ Quiescent Current
Fosc=1.2MHz,
1.2
SDI=HIGH, no load
ISHDN
IDX
Shutdown Current
ISINK Current Accuracy
(Note 4)
SDI = 0
ISINK = 20mA
0.3
-10
ID-Match
Current Matching
(Note 5)
VF: D1=D2=D3=D4
ID = 2, 20mA
TSS Soft-start Time
1
FCLK Switching Clock Frequency
0.6/1.2/1.8
FSSP Spread Spectrum
Enabled
+10
VSDI(L) SDI Threshold Low
VIN = 2.7V to 5.5V
VSDI(H) SDI Threshold High
VIN = 2.7V to 5.5V
1.6
TSLO SDI Low Time
0.05
TSHI SDI High Time
0.05
PWM Frequency (Range 1)
0.2
fPWM PWM Frequency (Range 2)
20
TPWM PWM Signal Period
1/ fPWM-Max
TPLO PWM Signal Low (LED off)
1
TPHI PWM Signal High (LED on)
1
PWM
65
TOFF Chip Disable (held low)
No PWM
512
TSEP
Interval between SDI
sequences (held high)
PWM
No PWM
65
512
ISDI SDI Input Leakage
ISCP
VOUT Short to GND hold
Current
θJA
Thermal Resistance1 –
Junction to Ambient
Maximum Thermal
θJC Resistance1 –
Junction to Case
DFN3030-12
(Note 6)
DFN3030-12
(Note 6)
-1
500
160
21
Notes:
4. Determined by the average current levels of all active channels.
5. Defined as the deviation of any sink current from the average of all active current channels.
6. Device mounted on FR-4 substrate PC board, 2oz copper, with minimum recommended pad layout.
Max Units
mA
6
µA
10
%
5
%
0.4
50
50
1.5
30
1/ fPWM-Min
TPWM – 1
TPWM – 1
100
800
100
800
1
ms
MHz
%
V
V
µs
µs
KHz
KHz
µs
µs
µs
ms
µs
ms
µs
µA
mA
°C/W
°C/W
AP3154 Rev. 2
5 of 13
www.diodes.com
FEBRUARY 2009
© Diodes Incorporated
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