Diodes PAM2805 - Manual (Page 3)

PAM2805
Document number: DSxxxxx Rev. 1 - 0
3 of 9
www.diodes.com
July 2013
© Diodes Incorporated
PAM2805
A Product Line of
Diodes Incorporated
Thermal Information
Parameter Symbol Package Max Unit
Thermal Resistance (Junction to Case) θ
JC
TSOT26 130
°C/W
Thermal Resistance (Junction to Ambient) θ
JA
TSOT26 250
Internal Power Dissipation @ T
A
= 25°C P
D
TSOT26 400 mW
Electrical Characteristics
(@T
A
= +25°C, L = 2.2µH, C
IN
= 10µF, C
OUT
= 10µF, C
BLK
= 1µF, V
F
= 3.4V unless otherwise specified.)
Parameter Symbol Test Conditions Min Typ Max Units
Input Voltage Range V
IN
0.9
V
F
-0.2
(Note 1)
V
Feedback Voltage V
FB
90 95 100 mV
Start-Up Voltage V
START
V
IN
: 0V →3V, I
LED
= 200mA 0.9 V
Hold Voltage V
HOLD
V
IN
: 3V → 0V, I
LED
: 750mA → 100mA 0.7 V
Oscillator Frequency f
OSC
0.85 1.0 1.15 MHz
Over Temperature Shutdown OTS 150 °C
Over Temperature Hysteresis OTH 30 °C
Maximum Output Current Range I O(MAX) V IN = 2.4V 750 mA
Quiescent Current I
Q
I
LED
= 0mA, VO = 3.4V, Device Switching
at 1MHz
1 3 mA
Switch On Resistance R
DS(ON)
V
O
= 3.4V 0.1 Ω
Current Limit I
LIM
V
O
= 3.4V 2 A
Over Voltage Protection (VOUT) V
OVP
4.5 V
Blinking Frequency F
BLK
C
BLK
= 1µF 8.5 10 Hz
Note: 1. V
F
---LED forward voltage