MAX8834Y 데이터 시트보기 (PDF) - Maxim Integrated
부품명
상세내역
일치하는 목록
MAX8834Y Datasheet PDF : 44 Pages
| |||
MAX8834Y/MAX8834Z
Adaptive Step-Up Converters
with 1.5A Flash Driver
Typical Operating Characteristics
(Circuit of Figure 1, VIN = 3.6V, VOUT = 3.8V, VDD = 3.0V, TA = +25°C, unless otherwise noted.)
STEP-UP CONVERTER EFFICIENCY
vs. INPUT VOLTAGE (MAX8834Y)
100
90
VOUT = 3.8V
80
IOUT = 16mA
70
60
VOUT = 3.8V
IOUT = 750mA
VOUT = 5V
IOUT = 16mA
50
VOUT = 5V
40
IOUT = 250mA
VOUT = 3.8V
30 IOUT = 250mA
VOUT = 5V
IOUT = 750mA
20 FOR VIN > VOUT, VOUT INCREASES ABOVE THE
10 PROGRAMMED VALUE DUE TO THE MINIMUM
DUTY CYCLE CONSTRAINT.
0
2.5 3.0 3.5 4.0 4.5 5.0
INPUT VOLTAGE (V)
STEP-UP CONVERTER EFFICIENCY
vs. OUTPUT CURRENT (MAX8834Z)
100
VIN = 3.6V
80
VIN = 3.2V
60
VIN = 2.5V
40
20
STEP-UP CONVERTER EFFICIENCY
vs. INPUT VOLTAGE (MAX8834Z)
100
90
80
70
VOUT = 3.8V
IOUT = 750mA
VOUT = 5V
IOUT = 750mA
60
50
40
VOUT = 5V
IOUT = 250mA
VOUT = 5V
VOUT = 3.8V IOUT = 16mA
30
VOUT = 3.8V
IOUT = 250mA
IOUT = 16mA
20 FOR VIN > VOUT, VOUT INCREASES ABOVE THE
10 PROGRAMMED VALUE DUE TO THE MINIMUM
DUTY CYCLE CONSTRAINT.
0
2.5 3.0 3.5 4.0 4.5 5.0
INPUT VOLTAGE (V)
STEP-UP CONVERTER SUPPLY CURRENT
vs. SUPPLY VOLTAGE
15
VOUT = 3.8V
12
9
MAX8834Z
6
MAX8834Y
3
STEP-UP CONVERTER EFFICIENCY
vs. OUTPUT CURRENT (MAX8834Y)
100
VIN = 3.6V
80
VIN = 3.2V
60
VIN = 2.5V
40
20
0
1
10
100
1000 10,000
OUTPUT CURRENT (mA)
STEP-UP CONVERTER SUPPLY CURRENT
vs. TEMPERATURE
20
VOUT = 5V
15
MAX8834Z
10
MAX8834Y
5
0
0
1
10
100
1000 10,000
2.5 3.0 3.5 4.0 4.5 5.0
OUTPUT CURRENT (mA)
SUPPLY VOLTAGE (V)
0
-40 -15
10
35
60
85
TEMPERATURE (°C)
LED CURRENT ACCURACY
vs. INPUT VOLTAGE
10
IFLED1 = 125mA
5
IFLED2 = 125mA
IFLED1 = 492.19mA
0
IFLED2 = 492.19mA
IFLED1 = 750mA
-5
IFLED2 = 750mA
IINDLED = 16mA
VOUT = 5V
-10
2.5 3.0 3.5 4.0 4.5 5.0 5.5
INPUT VOLTAGE (V)
LED CURRENT ACCURACY
vs. TEMPERATURE
10
8
IFLED2 = 125mA
6
4 IFLED1 = 125mA
2
IFLED1 = 492.19mA
0
-2
IINDLED = 16mA
-4
IFLED1 = 750mA
-6
IFLED2 = 492.19mA
-8
VOUT = 5V
-10
-40 -15 10
IFLED2 = 750mA
35
60
85
TEMPERATURE (°C)
6
Maxim Integrated
Share Link: 