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参数资料
| 型号： | MAX1716EEG+ |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 12/33页 |
| 文件大小： | 0K |
| 描述： | IC REG CTRLR BUCK PWM CM 24-QSOP |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 50 |
| PWM 型： | 电流模式 |
| 输出数： | 1 |
| 频率 - 最大： | 550kHz |
| 占空比： | 100% |
| 电源电压： | 2 V ~ 28 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 |
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High-Speed, Adjustable, Synchronous Step-Down
Controllers with Integrated Voltage Positioning
Pin Description
PIN
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
NAME
DH
V+
SHDN
FB
CC
ILIM
V CC
TON
REF
GND
VPS
VGATE
DL
PGND
V DD
D4
D3
D2
D1
D0
FUNCTION
High-Side Gate Driver Output. DH swings from LX to BST.
Battery Voltage Sense Connection. Connect V+ to input power source. V+ is used only for PWM
one-shot timing. DH on-time is inversely proportional to input voltage over a 2V to 28V range.
Shutdown Control Input. Drive SHDN to GND to force the MAX1716/MAX1854/MAX1855 into
shutdown. Drive or connect to V CC for normal operation. A rising edge on SHDN clears the fault
latch.
Feedback Input. Normally connected to V OUT . FB is connected to the bulk output filter capacitors
locally at the power supply. An external resistive divider can optionally set the output voltage.
Voltage-Positioning Compensation Capacitor. Connect a 47pF to 1000pF (47pF typ) capacitor from
CC to GND to adjust the loop ’ s response time.
Current-Limit Adjustment. The GND-CS current-limit threshold defaults to 120mV, if ILIM is tied to
V CC . In adjustable mode, the current-limit threshold voltage is 1/10th the voltage seen at ILIM over a
0.5V to 2.0V range. The logic threshold for switchover to the 120mV default value is approximately
V CC - 1V. Connect ILIM to REF for a fixed 200mV threshold.
Analog Supply Input for PWM Core. Connect to the system supply voltage (+4.5V to +5.5V) with a
series 20 ? resistor. Bypass to GND with a 0.22 μ F (min) ceramic capacitor.
On-Time Selection-Control Input. This is a four-level input used to determine DH on-time. Connect to
GND, REF, or V CC , or leave TON unconnected to set the following switching frequencies: GND =
550kHz, REF = 400kHz, floating = 300kHz, and V CC = 200kHz.
+2.0V Reference Voltage Output. Bypass to GND with 0.22 μ F (min) capacitor. Can supply 50 μ A for
external loads.
Analog Gound
Voltage-Positioning Sense Input. Connect to CS through a 1k ? resistor to maximize the load-
dependent output voltage drop, or adjust the voltage positioning level by connecting a resistive
divider from CS to PGND. Refer to Setting Voltage Positioning on how to select resistor values.
Open-Drain Power-Good Output. VGATE is normally high when the output is in regulation. VGATE is
low in shutdown, undervoltage lockout, and during soft-start. Any fault condition forces VGATE low,
and it remains low until the fault is cleared.
Low-Side Gate-Driver Output. DL swings from PGND to V DD .
Power Ground
Supply Input for the DL Gate Drive. Connect to the system supply voltage, +4.5V to +5.5V. Bypass
to PGND with a 1 μ F (min) ceramic capacitor.
MSB DAC Code Input. 5 μ A internal pullup to V CC (Table 5).
DAC Code Input. 5 μ A internal pullup to V CC (Table 5).
DAC Code Input. 5 μ A internal pullup to V CC (Table 5).
DAC Code Input. 5 μ A internal pullup to V CC (Table 5).
LSB DAC Code Input. 5 μ A internal pullup to V CC (Table 5).
12
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相关代理商/技术参数 |
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| MAX1716EEG+ | 功能描述:DC/DC 开关控制器 Adj Synchronous Step-Down 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 |
| MAX1716EEG+T | 功能描述:DC/DC 开关控制器 Adj Synchronous Step-Down 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 |
| MAX1716EEG-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 |
| MAX17175ETG+ | 制造商:Maxim Integrated Products 功能描述:BOOST REG W/INTEGRATED CHARGE PUMPS SWITCH CONTROL & HIGH-CU - Rail/Tube |
| MAX1717BEEG | 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 |
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