NCP5604B Просмотр технического описания (PDF) - ON Semiconductor
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NCP5604B Datasheet PDF : 15 Pages
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NCP5604A, NCP5604B
POWER SUPPLY SECTION (Typical values are referenced to TA = +25°C, Min & Max values are referenced −40°C to +85°C ambient
temperature, operating conditions 2.85 V < Vbat < 5.5 V, unless otherwise noted.)
Pin
Symbol
Rating
Min
Typ
Max
Unit
1
Vbat
Power Supply
12
Iout
Continuous DC Current in the Load (Note 8)
@ Vf = 3.2 V, 3.3 V < Vbat < 5.5 V (Total Iout = 4*LED)
2.7
−
5.5
V
100
−
−
mA
12
Isch
Continuous Output Short Circuit Current
−
40
150
mA
12
Vout
Output Voltage Compliance (OVP)
12
Tstart DC−DC Start Time (Cout = 1.0 mF)
− from Vout = 0 V to full load operation, @ Vbat = nominal
4.8
−
6.0
V
−
100
−
ms
1
Istdb
Standby Current, @ Iout = 0 mA, EN = GND
Vbat = 3.6 V
Vbat = 4.2 V
mA
−
0.3
3.0
−
0.4
5.0
1
Iop
Operating Current, @Iout = 0 mA, EN = H
2.85 V < Vbat < 5.5 V
Vbat = 3.6 V
mA
−
1.0
−
−
−
1.5
5, 6, 7, 8
IMAT
5, 6, 7, 8
ITOL
−
Fpwr
−
TSD
−
TSDH
−
EPWR
Output LED to LED Current Matching, @ Vbat = 3.6 V,
ILED = 20 mA, LED1 to LED4 are identical (Note 9)
Output Current Tolerance (Note 9)
@ 3.2 V < Vbat < 4.2 V, ILED = 20 mA
Charge Pump Operating Frequency
−25°C < TA < 85°C
Thermal Shutdown Protection
Thermal Shutdown Protection Hysteresis
Efficiency (Note 9)
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
−2.0
−5.0
0.85
−
−
−
−
"0.2
"1.0
1.0
160
30
87
85
+2.0
+5.0
1.15
−
−
−
−
%
%
MHz
°C
°C
%
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
for external purpose.
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