NCP5604B ON Semiconductor, NCP5604B Datasheet - Page 7

• Manufacturer Part Number: NCP5604B
• Description: High Efficiency White LED Driver
• Manufacturer: ON Semiconductor

8. The total output current is evenly distributed across the external LED.
9. LED4 is not connected in the NCP5604B version.
10. The NCP5604B controls 75 mA in total in the three current mirrors, the extra 25 mA available current from the DC−DC converter being available
POWER SUPPLY SECTION
temperature, operating conditions 2.85 V < Vbat < 5.5 V, unless otherwise noted.)
5, 6, 7, 8
5, 6, 7, 8
for external purpose.
Pin
12
12
12
12
1
1
1
−
−
−
−
Symbol
Tstart
E
T
Fpwr
V
Isch
I
I
I
V
T
I
stdb
MAT
TOL
I
SDH
PWR
out
bat
out
op
SD
Power Supply
Continuous DC Current in the Load (Note 8)
Continuous Output Short Circuit Current
Output Voltage Compliance (OVP)
DC−DC Start Time (Cout = 1.0 mF)
Standby Current, @ Iout = 0 mA, EN = GND
Operating Current, @Iout = 0 mA, EN = H
Output LED to LED Current Matching, @ Vbat = 3.6 V,
Output Current Tolerance (Note 9)
Charge Pump Operating Frequency
Thermal Shutdown Protection
Thermal Shutdown Protection Hysteresis
Efficiency (Note 9)
@ Vf = 3.2 V, 3.3 V < Vbat < 5.5 V (Total Iout = 4*LED)
− from Vout = 0 V to full load operation, @ Vbat = nominal
2.85 V < Vbat < 5.5 V
I
@ 3.2 V < Vbat < 4.2 V, I
−25°C < T
LED1 to LED4 = 5.0 mA, Vf = 2.95 V (Total = 20 mA), Vbat = 3.2 V
LED1 to LED4 = 25 mA, Vf = 3.3 V (Total = 100 mA), Vbat = 3.8 V
LED
Vbat = 3.6 V
Vbat = 4.2 V
Vbat = 3.6 V
= 20 mA, LED1 to LED4 are identical (Note 9)
(Typical values are referenced to T
A
< 85°C
LED
NCP5604A, NCP5604B
Rating
= 20 mA
http://onsemi.com
A
7
= +25°C, Min & Max values are referenced −40°C to +85°C ambient
−2.0
−5.0
0.85
Min
100
2.7
4.8
−
−
−
−
−
−
−
−
−
−
"0.2
"1.0
Typ
100
160
0.3
0.4
1.0
1.0
40
30
87
85
−
−
−
−
Max
+2.0
+5.0
1.15
150
5.5
6.0
3.0
5.0
1.5
−
−
−
−
−
−
−
MHz
Unit
mA
mA
mA
mA
°C
°C
ms
%
%
%
V
V