MAX1561ETA 데이터 시트보기 (PDF) - Maxim Integrated
부품명
상세내역
제조사
MAX1561ETA Datasheet PDF : 10 Pages
| |||
High-Efficiency, 26V Step-Up Converters
for Two to Six White LEDs
ELECTRICAL CHARACTERISTICS (continued)
(VIN = 3V, VOUT = 20V, COUT = 0.1µF, CCOMP = 0.15µF, RSENSE = 7.5Ω, VCTRL = 1.5V, Figure 1, TA = 0°C to +85°C, unless other-
wise noted. Typical values are at TA = +25°C.)
PARAMETER
CONDITIONS
MIN TYP MAX UNITS
N-CHANNEL SWITCH
LX On-Resistance
LX Leakage Current
LX Current Limit
ILX = 190mA
VLX = 28V, CTRL = GND
Duty cycle = 90%
TA = +25°C
TA = +85°C
1.45 2.25
Ω
0.01
5
µA
1
450 700 950
mA
ELECTRICAL CHARACTERISTICS
(VIN = 3V, VOUT = 20V, COUT = 0.1µF, CCOMP = 0.15µF, RSENSE = 7.5Ω, VCTRL = 1.5V, Figure 1, TA = -40°C to +85°C, unless other-
wise noted.) (Note 3)
PARAMETER
Supply Voltage
UVLO Threshold
Quiescent Current
OVLO Threshold
OUT Input Bias Current
Output Voltage Range
ERROR AMPLIFIER
CTRL to CS Regulation
CTRL Input Resistance
CTRL Dual-Mode Threshold
CTRL Shutdown Enable Delay
CS-to-COMP Transconductance
OSCILLATOR
Operating Frequency
Maximum Duty Cycle
N-CHANNEL SWITCH
LX On-Resistance
LX Current Limit
CONDITIONS
VIN rising or falling
No switching
VOUT rising
VOUT = 26V, VCTRL > 0.24V
VOUT = VIN, CTRL = GND
(Note 1)
VCTRL = 1V, VIN = 2.6V to 5.5V
VCTRL ≤ 1.0V
(Note 2)
VCOMP = 1.0V
MAX1561
MAX1599
MAX1561
MAX1599
CTRL = IN, CS = GND
Duty cycle = 90%
MIN TYP
2.6
2.10
26
10
(VIN - VD1)
MAX
5.5
2.55
0.55
29
30
1
25.5
UNITS
V
V
mA
V
µA
V
0.093
240
100
6
13
32
0.107
V
780
kΩ
240
mV
11
ms
22
85
µS
0.75
1.25
MHz
0.37
0.63
91
%
2.25
Ω
450
950
mA
Note 1: VD1 is the diode forward-voltage drop of diode D1 in Figure 1.
Note 2: Time from CTRL going below the dual-mode threshold to IC shutdown.
Note 3: Specifications to -40°C are guaranteed by design and not production tested.
_______________________________________________________________________________________ 3
Share Link: 