MAX8607 データシートの表示（PDF） - Maxim Integrated
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MAX8607 Datasheet PDF : 10 Pages
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1MHz PWM Boost Converter for 1.5A
White LED Camera Flash
ELECTRICAL CHARACTERISTICS (continued)
(VEN1 = VEN2 = 5V, VOUT = VOUTS = 4V, COUT = 10µF, TA = -40°C to +85°C. Typical values are at TA = +25°C, unless otherwise
noted.) (Note 1)
PARAMETER
COMP Input Resistance to GND
CONDITIONS
During shutdown or UVLO
MIN TYP MAX UNITS
140 250
Ω
LED TA Derating Function Threshold
LED TA Derating Function Slope
EN1 and EN2 Logic-High Input Voltage
EN1 and EN2 Logic-Low Input Voltage
EN1 and EN2 Logic Input Bias Current
LX n-Channel On-Resistance
LX p-Channel On-Resistance
LX Leakage
Operating Frequency
Maximum Duty Cycle
Minimum Duty Cycle
Temperature when the LED current derating
function begins
TA = +40°C to +85°C
VOUTS = 2.7V to 5.5V
1.4
VOUTS = 2.7V to 5.5V
VEN_ = 5.5V
TA = +25°C
TA = +85°C
ILX = 200mA
ILX = 200mA
VLX = 5.5V
TA = +25°C
TA = +85°C
0.8
65
+40
-1.67
0.4
0.01
1
0.03
50
100
100 200
0.01
1
0.03
1.0
1.2
75
4
8
°C
%/°C
V
V
µA
mΩ
mΩ
µA
MHz
%
%
Note 1: All devices are production tested at TA = +25°C. Specifications over temperature are guaranteed by design and characteri-
zation and not production tested.
Note 2: For temperatures below the thermal derating start point.
Typical Operating Characteristics
(Circuit of Figure 2, VIN = VEN1 = 3.6V, VEN2 = 0V, TA = +25°C, unless otherwise noted.)
FLASH-MODE BATTERY CURRENT
vs. INPUT VOLTAGE
4000
3500
RFLSH = 2kΩ
3000
2500
RFLSH = 3.01kΩ
2000
RFLSH = 4.02kΩ
1500
RFLSH = 8.06kΩ
1000
500
0
2.7 3.1 3.5 3.9 4.3 4.7 5.1 5.5
INPUT VOLTAGE (V)
MOVIE-MODE BATTERY CURRENT
vs. INPUT VOLTAGE
600
500
RMOV = 2.00kΩ
400
300
RMOV = 3.57kΩ
200
RMOV = 6.49kΩ
100
0
2.7 3.1 3.5 3.9 4.3 4.7 5.1 5.5
INPUT VOLTAGE (V)
BOOST CONVERTER EFFICIENCY
vs. LOAD CURRENT (DISCO MODE)
100
INCLUDES 83mA LED CURRENT
98
96
94
92
90
88
86
84
82
80
10
100
1000
LOAD CURRENT (mA)
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