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AN30888A-VF

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21P22-P22
AN30888A
Product Standards
Page 7 of 21
MaxTyp
NoteUnit
Limits
Condition SymbolParameter
Min
*1mV—202—
VFB_SEL = High
OVP = 0 V
Buck mode)
V
VFB1
VFB Reference Voltage 1
*1mV—32—
VFB_SEL = Low
OVP = 0 V
(Buck mode)
V
VFB2
VFB Reference Voltage 2
Over Voltage Protection (Boost Mode ，Buck-Boost mode Only)
*1
*2
V—21—R1 = 470 k, R2 = 30 kV
OVP
Over Voltage Protection Threshold
Output Driver
—s210.5Fix off time at SW pinT
OFF
Driver Off Time
*1MHz—1.2——F
Max
Maximum Operating Frequency
Regulator Voltage (VREG)
*1V—3.65—
4V V
IN
20 V
No Load Condition,
CVREG = 1 F
V
REG
VREG Output Voltage
Efficiency
Reference Voltage Control
*1%—90—
V
IN
=6V
1 LED of V
F
=3.7V
I
LED
= 400 mA
VFB_SEL = High
OVP = 0 V (Buck mode)
EffEfficiency
Note) *1 : Typical design value
*2 : See OPERATION (Functions and properties descriptions) (9) Over Voltage Protection (OVP)
ELECTRICAL CHARACTERISTICS
V
IN
= 6 V, ENB = 6 V, PWM = V
REG
Note) T
a
= 25 C 2 C unless otherwise specified.
Doc No.
TA4-EA-06057
Revision.
3
Established
:
2012-02-28
Revised
:
2013-02-18
AN30888A
Product Standards
Page 8 of 21
PIN CONFIGURATION
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
GND
N.C.
N.C.
VIN
VFB_SEL
CS
N.C.
OVP
VREG
N.C.
ENB
N.C.
PWM
SW
N.C.
GNDP
PIN FUNCTIONS
GroundGroundGND1
Power Supply of LSI
Power
Supply
VIN4
Feedback voltage select pin.
Connect VFB_SEL to VREG pin for operation in 202 mV mode.
Connect VFB_SEL to GND for operation in 32 mV mode.
InputVFB_SEL5
Current Sense pin.
Connect a resistor to this pin to set the required LED current
InputCS6
Over Voltage Protection input pin for Boost mode
Connect to GND for Buck mode
InputOVP8
Power GroundGroundGNDP9
External NMOS Transistor Gate DriveOutputSW11
PWM Dimming Control.
Input clock pulse of high level = VREG and low level = GND
LED current can be reduced according to the duty of this clock pulse
to create dimming effect
InputPWM12
Standby On/Off Control.
Connect ENB pin to VIN for Standby off
Connect ENB pin to GND for Standby on
InputENB14
Regulated Output voltage.
This is internal driver voltage. Connect a 1 uF capacitor to this pin for regulator
stability
OutputVREG16
——N.C.
2,3,7,10,
13,15
DescriptionTypePin namePin No.
TOP VIEW
Doc No.
TA4-EA-06057
Revision.
3
Established
:
2012-02-28
Revised
:
2013-02-18
AN30888A
Product Standards
Page 9 of 21
FUNCTIONAL BLOCK DIAGRAM
OVP
GNDP
GND
ENB
SW
CS
EN
UVLO
PWM
3.65 V
VREG
1.262 V
VFB_SEL
CONTROL
BGR
VREG
Reference
voltage
11
12
5
6
9
8
1
16
14
4
VIN
Notes: This block diagram is for explaining functions. Part of the block diagram may be omitted, or it may be simplified.
Doc No.
TA4-EA-06057
Revision.
3
Established
:
2012-02-28
Revised
:
2013-02-18
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21P22-P22

AN30888A-VF

Mfr. #:
Buy AN30888A-VF
Manufacturer:
Panasonic
Description:
LED Lighting Drivers Std LED Drvr 4.4x5mm SSOP016-P-0225E
Lifecycle:
New from this manufacturer.
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