参数资料
| 型号： | NCP1579DR2G |
| 厂商： | ON Semiconductor |
| 文件页数： | 3/11页 |
| 文件大小： | 0K |
| 描述： | IC REG CTRLR BUCK PWM VM 8-SOIC |
| 标准包装： | 1 |
| PWM 型： | 电压模式 |
| 输出数： | 1 |
| 频率 - 最大： | 317kHz |
| 占空比： | 80% |
| 电源电压： | 4.5 V ~ 13.2 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： | 0°C ~ 70°C |
| 封装/外壳： | 8-SOIC（0.154"，3.90mm 宽） |
| 包装： | 标准包装 |
| 其它名称： | NCP1579DR2GOSDKR |
NCP1579
PIN FUNCTION DESCRIPTION
Pin No.
1
2
3
4
5
6
7
8
Symbol
BST
TG
GND
BG
V CC
FB
COMP/DIS
PHASE
Description
Supply rail for the floating top gate driver. To form a boost circuit, use an external diode to bring the
desired input voltage to this pin (cathode connected to BST pin). Connect a capacitor (C BST ) between this pin
and the PHASE pin. Typical values for C BST range from 0.1 m F to 1 m F. Ensure that C BST is placed near the IC.
Top gate MOSFET driver pin. Connect this pin to the gate of the top N ? Channel MOSFET.
IC ground reference. All control circuits are referenced to this pin.
Bottom gate MOSFET driver pin. Connect this pin to the gate of the bottom N ? Channel MOSFET.
Supply rail for the internal circuitry. Operating supply range is 4.5 V to 13.2 V. Decouple with a 1 m F
capacitor to GND. Ensure that this decoupling capacitor is placed near the IC.
This pin is the inverting input to the error amplifier. Use this pin in conjunction with the COMP pin to
compensate the voltage ? control feedback loop. Connect this pin to the output resistor divider (if used) or dir-
ectly to V out .
Compensation Pin. This is the output of the error amplifier (EA) and the non ? inverting input of the PWM com-
parator. Use this pin in conjunction with the FB pin to compensate the voltage ? control feedback loop. The com-
pensation capacitor also acts as a soft ? start capacitor. Pull this pin low for disable.
Switch node pin. This is the reference for the floating top gate driver. Connect this pin to the source of the top
MOSFET.
ABSOLUTE MAXIMUM RATINGS
Pin Name
Main Supply Voltage Input
Bootstrap Supply Voltage Input
Symbol
V CC
BST
V MAX
15 V
30 V wrt/GND
V MIN
? 0.3 V
? 0.3 V
15 V wrt/PHASE
35 V wrt/GND for < 50
ns
Switching Node (Bootstrap Supply Return)
PHASE
26 V
? 0.7 V
? 5.0 V for < 50 ns
High ? Side Driver Output (Top Gate)
Low ? Side Driver Output (Bottom Gate)
TG
BG
30 V wrt/GND
15 V wrt/PHASE
15 V
? 0.3 V
wrt/PHASE
? 0.3 V
? 2.0 V for < 200 ns
Feedback
COMP/DISABLE
FB
COMP/DIS
5.5 V
5.5 V
? 0.3 V
? 0.3 V
MAXIMUM RATINGS
Rating
Thermal Resistance, Junction ? to ? Ambient
Thermal Resistance, Junction ? to ? Case
Operating Junction Temperature Range
Operating Ambient Temperature Range
Storage Temperature Range
Lead Temperature Soldering (10 sec): Reflow (SMD styles only) Pb ? Free
Symbol
R q JA
R q JC
T J
T A
T stg
Value
165
45
0 to 125
0 to 70
? 55 to +150
260
Unit
° C/W
° C/W
° C
° C
° C
° C
Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above the
Recommended Operating Conditions is not implied. Extended exposure to stresses above the Recommended Operating Conditions may affect
device reliability.
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| NCP1580DR2 | 功能描述:电压模式 PWM 控制器 Low Voltage 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 |
| NCP1580DR2G | 功能描述:电压模式 PWM 控制器 Low Voltage Synchronous Buck 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 |
| NCP1581DR2G | 功能描述:电压模式 PWM 控制器 SYNCHRONOUS PWM BUCK CONV 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 |
| NCP1581SBCKRGEVB | 功能描述:BOARD EVAL NCP1581 RoHS:是 类别:编程器，开发系统 >> 评估板 - DC/DC 与 AC/DC（离线）SMPS 系列:* 产品培训模块:Obsolescence Mitigation Program 标准包装:1 系列:True Shutdown™ 主要目的:DC/DC，步升 输出及类型:1，非隔离 功率 - 输出:- 输出电压:- 电流 - 输出:1A 输入电压:2.5 V ~ 5.5 V 稳压器拓扑结构:升压 频率 - 开关:3MHz 板类型:完全填充 已供物品:板 已用 IC / 零件:MAX8969 |
| NCP1582ADR2G | 功能描述:电压模式 PWM 控制器 BUCK CONTROLLER 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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