The CXSD62117 is a dual channel voltage mode and syn-chronous PWM controller which drives dual N-channel MOSFETs. The two channels are operated with 180 de-gree phase shift.The device integrates all

发布时间：2020-04-06 09:43:38 浏览次数：702 作者：嘉泰姆来源：1

摘要：The CXSD62117 is a dual channel voltage mode and syn-chronous PWM controller which drives dual N-channel MOSFETs. The two channels are operated with 180 de-gree phase shift.The device integrates all

目录u1q嘉泰姆

1.产品概述 2.产品特点
3.应用范围 4.下载产品资料PDF文档
5.产品封装图 6.电路原理图
7.功能概述 8.相关产品

一,产品概述(General Description)
The CXSD62117 is a dual channel voltage mode and syn-chronous
PWM controller which drives dual N-channel MOSFETs. The two channels
are operated with 180 de-gree phase shift.The device integrates all of the
control, monitoring, and protecting functions into a single package; provides
two controlled power output with over-voltage, over-temperature, and
over-current protections.
The CXSD62117 provides excellent regulation for output load variation.
The internal 1.0V temperature-compen- sated reference voltage provides
high accuracy of 0.8% over line and temperature. The device includes a
50kHz free-running triangle-wave oscillator that is adjustable from 50kHz
to 400kHz.The CXSD62117 has been equipped with excellent pro-tection
functions: POR, OCP, UVP, and OVP protections.The Power-On-Reset (POR)
circuit can monitor the VCC and OCSET voltage to make sure the supply
voltage ex-ceeds their threshold voltage while the controller is running. The
Over-Current Protection (OCP) monitors the output current by using the
voltage drop across the high side MOSFET’s RDS(ON). When the output
current reaches the trip point, the controller will be latched. Under-Voltageu1q嘉泰姆

Protection (UVP) and Over-Voltage Protection (OVP) moni-tor the FB
voltage to protect CXSD62117 from burnout when output voltage is
under 50% or over 120% of normal out-put voltage. The CXSD62117
is available in SOP-20 package.
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二.产品特点(Features)
Single 12V Power Supply Required
Excellent Output Voltage Regulation
- 1.0V±0.8% Internal Reference Over Line and Temperature
Simple Single Loop Control Design
- Voltage Mode PWM Control 0~100% Duty Ratio
Programmable Frequency Range from 50kHz to
400kHz (Constant 50kHz when Floating)
Integrated Soft-Start and Soft-Off (Patent Pending)
Support Pre-Biased Power-On
Both Channel with 180o Phase Shift
Integrated Boot-Strap Diode
Over-Current Protection
- Sense High Side MOSFET’s RDS(ON)
120% Over-Voltage Protection
50% Under-Voltage Protection
Over-Temperature Protection
Available in SOP-20 Package
Lead Free and Green Devices Available (RoHS Compliant)
三,应用范围 (Applications)
SMPS
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四.下载产品资料PDF文档 u1q嘉泰姆

需要详细的PDF规格书请扫一扫微信联系我们，还可以获得免费样品以及技术支持！u1q嘉泰姆

QQ截图20160419174301.jpg u1q嘉泰姆

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五,产品封装图 (Package)u1q嘉泰姆

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六.电路原理图u1q嘉泰姆

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七,功能概述u1q嘉泰姆

Layout Consideration
In any high switching frequency converter, a correct lay-out is important to ensure proper operation of the
regulator. With power devices switching at 200kHz, the resulting current transient will cause voltage spike across the interconnecting impedance and parasitic circuit elements. As an example, consider the turn-off transition of the PWM MOSFET. Before turn-off, the MOSFET is car-rying the full load current. During turn-off, current stops flowing in the MOSFET and is free-wheeling by the lower MOSFET and parasitic diode. Any parasitic inductance of the circuit generates a large voltage spike during the switching interval. In general, using short and wide printed circuit traces should minimize interconnecting imped- ances and the magnitude of voltage spike. And signal and power grounds are to be kept separating till com-bined using the ground plane construction or single point grounding. Figure 8. illustrates the layout, with bold lines
Layout Consideration (Cont.)
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indicating high current paths; these traces must be short and wide. Components along the bold lines should beu1q嘉泰姆

placed lose together. Below is a checklist for your layout:- Keep the switching nodes (UGATE, LGATE, and PHASE)away from sensitive small signal nodes since these nodes are fast moving signals. Therefore, keep traces
to these nodes as short as possible.
- The traces from the gate drivers to the MOSFETs (UGATEand LGATE) should be short and wide.
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- Place the source of the high-side MOSFET and the drainof the low-side MOSFET as close as possible. Minimiz-ing the impedance with wide layout plane between the two pads reduces the voltage bounce of the node.u1q嘉泰姆

- Decoupling capacitor, compensation component, the resistor dividers, and boot capacitors should be closeu1q嘉泰姆

their pins. (For example, place the decoupling ceramic capacitor near the drain of the high-side MOSFET as
close as possible. The bulk capacitors are also placed near the drain).
- The input capacitor should be near the drain of the up-per MOSFET; the output capacitor should be near the
loads. The input capacitor GND should be close to the lower MOSFET GND.
- The drain of the MOSFETs (VIN and PHASE nodes)should be a large plane for heat sinking.
- The ROCSET resistance should be placed near the IC as close as possible.
- The decoupling capacitor for VCC should be placed near the VCC and GND. CBOOT should be connected as
close to the BOOT and PHASE pins as possible. u1q嘉泰姆

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CXSD6278u1q嘉泰姆	SOP-8u1q嘉泰姆	VMu1q嘉泰姆	1u1q嘉泰姆	1u1q嘉泰姆	10u1q嘉泰姆	3.3u1q嘉泰姆	5.5u1q嘉泰姆	0.8u1q嘉泰姆	5u1q嘉泰姆	2100u1q嘉泰姆
CXSD6279Bu1q嘉泰姆	SOP-14u1q嘉泰姆	VM u1q嘉泰姆	1u1q嘉泰姆	1u1q嘉泰姆	10u1q嘉泰姆	5u1q嘉泰姆	13.2u1q嘉泰姆	0.8u1q嘉泰姆	12u1q嘉泰姆	2000u1q嘉泰姆
CXSD6280u1q嘉泰姆	TSSOP-24u1q嘉泰姆 \|QFN5x5-32u1q嘉泰姆	VMu1q嘉泰姆	1u1q嘉泰姆	2u1q嘉泰姆	20u1q嘉泰姆	5u1q嘉泰姆	13.2u1q嘉泰姆	0.6u1q嘉泰姆	5~12u1q嘉泰姆	4000u1q嘉泰姆
CXSD6281Nu1q嘉泰姆	SOP14u1q嘉泰姆 QSOP16u1q嘉泰姆 QFN-16u1q嘉泰姆	VMu1q嘉泰姆	1u1q嘉泰姆	1u1q嘉泰姆	30u1q嘉泰姆	2.9u1q嘉泰姆	13.2u1q嘉泰姆	0.9u1q嘉泰姆	12u1q嘉泰姆	4000u1q嘉泰姆
CXSD6282u1q嘉泰姆	SOP-14u1q嘉泰姆	VMu1q嘉泰姆	1u1q嘉泰姆	1u1q嘉泰姆	30u1q嘉泰姆	2.2u1q嘉泰姆	13.2u1q嘉泰姆	0.6u1q嘉泰姆	12u1q嘉泰姆	5000u1q嘉泰姆
CXSD6282Au1q嘉泰姆	SOP-14u1q嘉泰姆	VMu1q嘉泰姆	1u1q嘉泰姆	1u1q嘉泰姆	30u1q嘉泰姆	2.2u1q嘉泰姆	13.2u1q嘉泰姆	0.6u1q嘉泰姆	12u1q嘉泰姆	5000u1q嘉泰姆
CXSD6283u1q嘉泰姆	SOP-14u1q嘉泰姆	VMu1q嘉泰姆	1u1q嘉泰姆	1u1q嘉泰姆	25u1q嘉泰姆	2.2u1q嘉泰姆	13.2u1q嘉泰姆	0.8u1q嘉泰姆	12u1q嘉泰姆	5000u1q嘉泰姆
CXSD6284/Au1q嘉泰姆	LQFP7x7 48u1q嘉泰姆 TQFN7x7-48u1q嘉泰姆	VMu1q嘉泰姆	1u1q嘉泰姆	6u1q嘉泰姆	0.015u1q嘉泰姆	1.4u1q嘉泰姆	6.5u1q嘉泰姆	-u1q嘉泰姆	5u1q嘉泰姆	1800u1q嘉泰姆
CXSD6285u1q嘉泰姆	TSSOP-24Pu1q嘉泰姆	VMu1q嘉泰姆	1u1q嘉泰姆	2u1q嘉泰姆	20u1q嘉泰姆	2.97u1q嘉泰姆	5.5u1q嘉泰姆	0.8u1q嘉泰姆	5~12u1q嘉泰姆	5000u1q嘉泰姆
CXSD6286u1q嘉泰姆	SOP-14u1q嘉泰姆	VMu1q嘉泰姆	1u1q嘉泰姆	1u1q嘉泰姆	10u1q嘉泰姆	5u1q嘉泰姆	13.2u1q嘉泰姆	0.8u1q嘉泰姆	12u1q嘉泰姆	3000u1q嘉泰姆
CXSD6287u1q嘉泰姆	SOP-8-P\|DIP-8u1q嘉泰姆	VMu1q嘉泰姆	1u1q嘉泰姆	1u1q嘉泰姆	30u1q嘉泰姆	2.9u1q嘉泰姆	13.2u1q嘉泰姆	1.2u1q嘉泰姆	12u1q嘉泰姆	3000u1q嘉泰姆
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CXSD6289u1q嘉泰姆	SOP-20u1q嘉泰姆	VMu1q嘉泰姆	1u1q嘉泰姆	2u1q嘉泰姆	20u1q嘉泰姆	2.2u1q嘉泰姆	13.2u1q嘉泰姆	0.6u1q嘉泰姆	5~12u1q嘉泰姆	4000u1q嘉泰姆
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CXSD6291HCu1q嘉泰姆	DIP8\|SOP-8u1q嘉泰姆	VMu1q嘉泰姆	1u1q嘉泰姆	1u1q嘉泰姆	1u1q嘉泰姆	1.2u1q嘉泰姆	9u1q嘉泰姆	24u1q嘉泰姆	5u1q嘉泰姆	9 ~ 24u1q嘉泰姆
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CXSD62105u1q嘉泰姆	TQFN4x4-24u1q嘉泰姆	COTu1q嘉泰姆	1u1q嘉泰姆	2u1q嘉泰姆	15u1q嘉泰姆	6u1q嘉泰姆	25u1q嘉泰姆	2u1q嘉泰姆	Nu1q嘉泰姆	550u1q嘉泰姆
CXSD62106\|Au1q嘉泰姆	TQFN4x4-4u1q嘉泰姆 TQFN3x3-20u1q嘉泰姆	COTu1q嘉泰姆	1u1q嘉泰姆	2u1q嘉泰姆	20u1q嘉泰姆	3u1q嘉泰姆	28u1q嘉泰姆	0.75u1q嘉泰姆	5u1q嘉泰姆	800u1q嘉泰姆
CXSD62107u1q嘉泰姆	TQFN3x3-16u1q嘉泰姆	COTu1q嘉泰姆	1u1q嘉泰姆	1u1q嘉泰姆	20u1q嘉泰姆	1.8u1q嘉泰姆	28u1q嘉泰姆	0.75u1q嘉泰姆	5u1q嘉泰姆	400u1q嘉泰姆
CXSD62108u1q嘉泰姆	QFN3.5x3.5-14u1q嘉泰姆 TQFN3x3-16u1q嘉泰姆	COTu1q嘉泰姆	1u1q嘉泰姆	1u1q嘉泰姆	20u1q嘉泰姆	1.8u1q嘉泰姆	28u1q嘉泰姆	0.75u1q嘉泰姆	5u1q嘉泰姆	400u1q嘉泰姆
CXSD62109u1q嘉泰姆	TQFN3x3-16u1q嘉泰姆	COTu1q嘉泰姆	1u1q嘉泰姆	2u1q嘉泰姆	20u1q嘉泰姆	1.8u1q嘉泰姆	28u1q嘉泰姆	0.75u1q嘉泰姆	5u1q嘉泰姆	400u1q嘉泰姆
CXSD62110u1q嘉泰姆	QFN3x3-20u1q嘉泰姆 TQFN3x3-16u1q嘉泰姆	COTu1q嘉泰姆	1u1q嘉泰姆	2u1q嘉泰姆	20u1q嘉泰姆	3u1q嘉泰姆	28u1q嘉泰姆	1.8\|1.5\|0.5u1q嘉泰姆	5u1q嘉泰姆	740u1q嘉泰姆
CXSD62111u1q嘉泰姆	TQFN4x4-24u1q嘉泰姆 \|QFN3x3-20u1q嘉泰姆	CMu1q嘉泰姆	1u1q嘉泰姆	2u1q嘉泰姆	15u1q嘉泰姆	5u1q嘉泰姆	28u1q嘉泰姆	0.5u1q嘉泰姆	Nu1q嘉泰姆	3000u1q嘉泰姆
CXSD62112u1q嘉泰姆	TDFN3x3-10u1q嘉泰姆	COTu1q嘉泰姆	1u1q嘉泰姆	1u1q嘉泰姆	20u1q嘉泰姆	1.8u1q嘉泰姆	28u1q嘉泰姆	0.5u1q嘉泰姆	5u1q嘉泰姆	250u1q嘉泰姆
CXSD62113\|Cu1q嘉泰姆	TQFN3x3-20u1q嘉泰姆	COTu1q嘉泰姆	1u1q嘉泰姆	2u1q嘉泰姆	15u1q嘉泰姆	6u1q嘉泰姆	25u1q嘉泰姆	2u1q嘉泰姆	Nu1q嘉泰姆	550u1q嘉泰姆
CXSD62113Eu1q嘉泰姆	TQFN 3x3 20u1q嘉泰姆	COTu1q嘉泰姆	2u1q嘉泰姆	2u1q嘉泰姆	11u1q嘉泰姆	6u1q嘉泰姆	25u1q嘉泰姆	2u1q嘉泰姆	Nu1q嘉泰姆	550u1q嘉泰姆
CXSD62114u1q嘉泰姆	TQFN3x3-20u1q嘉泰姆	COTu1q嘉泰姆	2u1q嘉泰姆	2u1q嘉泰姆	11u1q嘉泰姆	5.5u1q嘉泰姆	25u1q嘉泰姆	2u1q嘉泰姆	Nu1q嘉泰姆	280u1q嘉泰姆
CXSD62115u1q嘉泰姆	QFN4x4-24u1q嘉泰姆	VMu1q嘉泰姆	2u1q嘉泰姆	1u1q嘉泰姆	60u1q嘉泰姆	3.1u1q嘉泰姆	13.2u1q嘉泰姆	0.85u1q嘉泰姆	12u1q嘉泰姆	5000u1q嘉泰姆
CXSD62116A\|B\|Cu1q嘉泰姆	SOP-8Pu1q嘉泰姆	VMu1q嘉泰姆	1u1q嘉泰姆	1u1q嘉泰姆	20u1q嘉泰姆	2.9u1q嘉泰姆	13.2u1q嘉泰姆	0.8u1q嘉泰姆	12u1q嘉泰姆	16000u1q嘉泰姆
CXSD62117u1q嘉泰姆	SOP-20u1q嘉泰姆	VMu1q嘉泰姆	2u1q嘉泰姆	2u1q嘉泰姆	30u1q嘉泰姆	10u1q嘉泰姆	13.2u1q嘉泰姆	1u1q嘉泰姆	12u1q嘉泰姆	5000u1q嘉泰姆
CXSD62118u1q嘉泰姆	TDFN3x3-10u1q嘉泰姆	COTu1q嘉泰姆	1u1q嘉泰姆	1u1q嘉泰姆	25u1q嘉泰姆	1.8u1q嘉泰姆	28u1q嘉泰姆	0.7u1q嘉泰姆	5u1q嘉泰姆	250u1q嘉泰姆
CXSD62119u1q嘉泰姆	TQFN3x3-20u1q嘉泰姆	COTu1q嘉泰姆	2u1q嘉泰姆	1u1q嘉泰姆	40u1q嘉泰姆	1.8u1q嘉泰姆	25u1q嘉泰姆	REFIN Settingu1q嘉泰姆	5u1q嘉泰姆	700u1q嘉泰姆
CXSD62120u1q嘉泰姆	QFN 3x3 20u1q嘉泰姆 TQFN 3x3 16u1q嘉泰姆	COTu1q嘉泰姆	1u1q嘉泰姆	2u1q嘉泰姆	20u1q嘉泰姆	3u1q嘉泰姆	28u1q嘉泰姆	1.8\|1.5 1.35\|1.2 0.5u1q嘉泰姆	5u1q嘉泰姆	800u1q嘉泰姆
CXSD62121Au1q嘉泰姆	TQFN3x3 20u1q嘉泰姆	COTu1q嘉泰姆	1u1q嘉泰姆	2u1q嘉泰姆	15u1q嘉泰姆	3u1q嘉泰姆	28u1q嘉泰姆	0.75u1q嘉泰姆	5u1q嘉泰姆	220u1q嘉泰姆
CXSD62121Bu1q嘉泰姆	TQFN3x3 20u1q嘉泰姆	COTu1q嘉泰姆	1u1q嘉泰姆	2u1q嘉泰姆	15u1q嘉泰姆	3u1q嘉泰姆	28u1q嘉泰姆	0.75u1q嘉泰姆	5u1q嘉泰姆	220u1q嘉泰姆
CXSD62121u1q嘉泰姆	TQFN3x3-20u1q嘉泰姆	COTu1q嘉泰姆	1u1q嘉泰姆	2u1q嘉泰姆	20u1q嘉泰姆	3u1q嘉泰姆	28u1q嘉泰姆	0.75u1q嘉泰姆	5u1q嘉泰姆	180u1q嘉泰姆

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The CXSD62117 is a dual channel voltage mode and syn-chronous PWM controller which drives dual N-channel MOSFETs. The two channels are operated with 180 de-gree phase shift.The device integrates all

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The CXSD62117 is a dual channel voltage mode and syn-chronous PWM controller which drives dual N-channel MOSFETs. The two channels are operated with 180 de-gree phase shift.The device integrates all

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