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参数资料
| 型号： | MAX1858AEEG+ |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 3/22页 |
| 文件大小： | 0K |
| 描述： | IC REG CTRLR BUCK PWM VM 24-QSOP |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 50 |
| PWM 型： | 电压模式 |
| 输出数： | 2 |
| 频率 - 最大： | 660kHz |
| 电源电压： | 4.5 V ~ 23 V |
| 降压： | 是 |
| 升压： | 无 |
| 回扫： | 无 |
| 反相： | 无 |
| 倍增器： | 无 |
| 除法器： | 无 |
| Cuk： | 无 |
| 隔离： | 无 |
| 工作温度： | -40°C ~ 85°C |
| 封装/外壳： | 24-SSOP（0.154"，3.90mm 宽） |
| 包装： | 管件 |
Dual 180° Out-of-Phase Buck Controllers with
Sequencing/Prebias Startup and POR
ELECTRICAL CHARACTERISTICS (continued)
(V+ = 12V, EN = ILIM_ = V L , SYNC = GND, I VL = 0mA, PGND = GND, C REF = 0.22μF, C VL = 4.7μF (ceramic), R OSC = 60k ? ,
compensation components for COMP_ are from Figure 1, T A = -40°C to +85°C (Note 1), unless otherwise noted.)
PARAMETER
SYNC Range
SYNC Input Pulse Width
SYNC Rise/Fall Time
CONDITIONS
Switching frequency must be set to half of the SYNC
frequency
High
(Note 4)
Low
(Note 4)
MIN
200
100
100
TYP
MAX
1200
100
UNITS
kHz
ns
ns
ERROR AMPLIFIER
FB_ Input Bias Current
250
nA
FB_ Input Voltage Set Point
FB_ to COMP_ Transconductance
0°C to +85°C
-40°C to +85°C
0°C to +85°C
-40°C to +85°C
0.985
0.98
1.25
1.2
1.00
1.00
1.8
1.8
1.015
1.02
2.70
2.9
V
mS
DRIVERS
DL_, DH_ Break-Before-Make Time C LOAD = 5nF
30
ns
DH_ On-Resistance
DL_ On-Resistance
Low
High
Low
High
1.5
3
0.6
3
2.5
5
1.5
5
?
?
LOGIC INPUTS (EN, SYNC)
Input Low Level
Input High Level
Typical 15% hysteresis, V L = 4.5V
V L = 5.5V
2.4
0.8
V
V
Input High/Low Bias Current
V EN = 0 or 5.5V
-1
+0.1
+1
μA
LOGIC OUTPUTS (CKO)
Output Low Level
Output High Level
V L = 5V, sinking 5mA
V L = 5V, sourcing 5mA
4.0
0.4
V
V
COMP_
Pulldown Resistance During
Shutdown and Current Limit
RST OUTPUT (MAX1858A/MAX1876A ONLY)
17
?
Output-Voltage Trip Level
Output Low Level
Output Leakage
Reset Timeout Period
FB_ to Reset Delay
Both FBs must be over this to allow the reset timer to
start; there is no hysteresis
V L = 5V, sinking 3.2mA
V L = 1V, sinking 0.4mA
V+ = V L = 5V, V RST = 5.5V, V FB = 1V
V FB_ = 1V
FB_ overdrive from 1V to 0.85V
0.87
140
0.9
315
4
0.93
0.4
0.3
1
560
V
V
μA
ms
μs
Note 1: Specifications to -40°C are guaranteed by design and not production tested.
Note 2: Operating supply range is guaranteed by V L line regulation test. Connect V+ to V L for 5V operation.
Note 3: When V L falls and UVLO is tripped, the device is latched and V L must be discharged below 2.5V before normal operation
can resume.
Note 4: Guaranteed by design and not production tested.
_______________________________________________________________________________________
3
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX1858AEEG+ | 功能描述:电压模式 PWM 控制器 Dual 180 Out Buck Controllers RoHS:否 制造商:Texas Instruments 输出端数量:1 拓扑结构:Buck 输出电压:34 V 输出电流: 开关频率: 工作电源电压:4.5 V to 5.5 V 电源电流:600 uA 最大工作温度:+ 125 C 最小工作温度:- 40 C 封装 / 箱体:WSON-8 封装:Reel |
| MAX1858AEEG+T | 功能描述:电压模式 PWM 控制器 Dual 180 Out Buck Controllers RoHS:否 制造商:Texas Instruments 输出端数量:1 拓扑结构:Buck 输出电压:34 V 输出电流: 开关频率: 工作电源电压:4.5 V to 5.5 V 电源电流:600 uA 最大工作温度:+ 125 C 最小工作温度:- 40 C 封装 / 箱体:WSON-8 封装:Reel |
| MAX1858AEEG-T | 功能描述:DC/DC 开关控制器 RoHS:否 制造商:Texas Instruments 输入电压:6 V to 100 V 开关频率: 输出电压:1.215 V to 80 V 输出电流:3.5 A 输出端数量:1 最大工作温度:+ 125 C 安装风格: 封装 / 箱体:CPAK |
| MAX1858EEG | 功能描述:DC/DC 开关控制器 RoHS:否 制造商:Texas Instruments 输入电压:6 V to 100 V 开关频率: 输出电压:1.215 V to 80 V 输出电流:3.5 A 输出端数量:1 最大工作温度:+ 125 C 安装风格: 封装 / 箱体:CPAK |
| MAX1858EEG+ | 功能描述:电压模式 PWM 控制器 Dual 180 Out Buck Controllers RoHS:否 制造商:Texas Instruments 输出端数量:1 拓扑结构:Buck 输出电压:34 V 输出电流: 开关频率: 工作电源电压:4.5 V to 5.5 V 电源电流:600 uA 最大工作温度:+ 125 C 最小工作温度:- 40 C 封装 / 箱体:WSON-8 封装:Reel |
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