参数资料
型号: LT8415IDDB#TRPBF
厂商: Linear Technology
文件页数: 3/12页
文件大小: 0K
描述: IC REG BOOST ADJ 25MA 12DFN
标准包装: 2,500
类型: 升压(升压)
输出类型: 可调式
输出数: 1
输出电压: 2.5 V ~ 40 V
输入电压: 2.5 V ~ 16 V
PWM 型: 电流模式
频率 - 开关: 800kHz
电流 - 输出: 25mA
同步整流器:
工作温度: -40°C ~ 125°C
安装类型: 表面贴装
封装/外壳: 12-WFDFN 裸露焊盘
包装: 带卷 (TR)
供应商设备封装: 12-DFN-EP(3x2)
LT8415
ELECTRICAL CHARACTERISTICS The l denotes the speci?cations which apply over the full operating
temperature range, otherwise speci?cations are T A = 25°C. V IN = 3.0V, V SHDN = V IN unless otherwise noted. (Note 2)
PARAMETER
PMOS Disconnect Current Limit
PMOS Disconnect V CAP - V OUT
Internal Resistor Divider Ratio
FBP pin Bias Current
CONDITIONS
I OUT = 1mA
V FBP = 0.5V, Current Flows Out of Pin
l
l
MIN
14
31.6
TYP
19
50
31.85
1.3
MAX
25
32.2
30
UNITS
mA
mV
nA
SHDN Minimum Input Voltage High
SHDN Rising
l
1.20
1.30
1.45
V
SHDN Input Voltage High hysteresis
60
mV
SHDN Hysteresis Current
(Note 3)
0.08
0.1
0.14
μA
SHDN Input Voltage Low
0.3
V
SHDN Pin Bias Current
V SHDN = 3V
V SHDN = 16V
0
2
1
3
μA
μA
IN1,IN2 Minimum Input Voltage High
IN1,IN2 Input Voltage Low
OUT1,OUT2 Rise Time
OUT1,OUT2 Fall Time
OUT1,OUT2 Rise Delay
OUT1,OUT2 Fall Delay
V OUT = 34V, C LOAD = 200pF (Note 5)
V OUT = 34V, C LOAD = 200pF (Note 5)
V OUT = 34V, C LOAD = 200pF (Note 5)
V OUT = 34V, C LOAD = 200pF (Note 5)
l
l
1.1
2.5
3
4
2
0.3
V
V
μs
μs
μs
μs
Half-bridge PMOS Voltage Drop V OUT – V OUT1,OUT2 IN1,IN2 = 2V, 0.1mA Load From OUT1,OUT2
70
mV
Half-bridge NMOS Voltage Drop V OUT1,OUT2
IN1,IN2 = 0V, 0.1mA Current Into OUT1,OUT2
85
mV
Note 1: Stresses beyond those listed under Absolute Maximum Ratings
may cause permanent damage to the device. Exposure to any Absolute
Maximum Rating condition for extended periods may affect device
reliability and lifetime.
Note 2: The LT8415 is guaranteed to meet performance speci?cations
from 0°C to 125°C junction temperature. Speci?cations over the –40°C
to 125°C operating junction temperature range are assured by design,
characterization and correlation with statistical process controls.
Note 3: See applications section for more information.
Note 4: Start-Up mode occurs when V OUT is less than V FBP *64/3.
Note 5: See Timing Diagram. Rise times are measured from 4V to 30V and
fall times are measured from 30V to 4V. Delay times are measured from
the IN1,IN2 transition to when the OUT1,OUT2 voltage has risen to 4V or
decreased to 30V.
TYPICAL PERFORMANCE CHARACTERISTICS
Switching Frequency
T A = 25°C, unless otherwise noted.
1000
vs Load Current
V CC = 3.6V
0.6
Load Regulation
V CC = 3.6V
50
Vout vs FBP Voltage
800
V OUT = 16V
FIGURE 4 CIRCUIT
0.4
V OUT = 16V
FIGURE 4 CIRCUIT
40
0.2
600
400
0
–0.2
30
20
200
–0.4
10
0
0
1
2
3
–0.6
0
1
2
3
0
0
0.5
1 1.5
2
LOAD CURRENT (mA)
8415 G01
LOAD CURRENT (mA)
8415 G02
FBP VOLTAGE (V)
8415 G03
8415f
3
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