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MIC38C45-1BM: 产品描述Switching Controller Current-mode 0.5A 500kHz Switching Freq-Max BICMOS PDSO14; 产品类别电源/电源管理电源电路; 文件大小342KB，共11页; 制造商Micrel ( Microchip ); 官网地址https://www.microchip.com

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MIC38C45-1BM概述

Switching Controller Current-mode 0.5A 500kHz Switching Freq-Max BICMOS PDSO14

MIC38C45-1BM规格参数

参数名称	属性值
是否Rohs认证	不符合
厂商名称	Micrel ( Microchip )
包装说明	LSOP, SOP14,.25
Reach Compliance Code	not_compliant
Factory Lead Time	1 week
模拟集成电路 - 其他类型	SWITCHING CONTROLLER
控制模式	CURRENT-MODE
控制技术	PULSE WIDTH MODULATION
最大输入电压	30 V
最小输入电压	8.2 V
标称输入电压	15 V
JESD-30 代码	R-PDSO-G14
JESD-609代码	e0
长度	8.65 mm
湿度敏感等级	1
功能数量	1
端子数量	14
最高工作温度	85 °C
最低工作温度	-40 °C
最大输出电流	0.5 A
封装主体材料	PLASTIC/EPOXY
封装代码	LSOP
封装等效代码	SOP14,.25
封装形状	RECTANGULAR
封装形式	SMALL OUTLINE, LOW PROFILE
峰值回流温度（摄氏度）	240
认证状态	Not Qualified
座面最大高度	1.6 mm
表面贴装	YES
切换器配置	BOOST
最大切换频率	500 kHz
技术	BICMOS
温度等级	INDUSTRIAL
端子面层	Tin/Lead (Sn85Pb15)
端子形式	GULL WING
端子节距	1.27 mm
端子位置	DUAL
处于峰值回流温度下的最长时间	30
宽度	3.9 mm

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MIC38C42/3/4/5

Micrel, Inc.

MIC38C42/3/4/5

BiCMOS Current-Mode PWM Controllers

General Description

The MIC38C4x are ﬁxed frequency, high performance, cur-

rent-mode PWM controllers. Micrel’s BiCMOS devices are

pin compatible with 384x bipolar devices but feature several

improvements.

Undervoltage lockout circuitry allows the ’42 and ’44 versions

to start up at 14.5V and operate down to 9V, and the ’43 and

’45 versions start at 8.4V with operation down to 7.6V. All

versions operate up to 20V.

When compared to bipolar 384x devices operating from a

15V supply, start-up current has been reduced to 50µA typical

and operating current has been reduced to 4.0 mA typical.

Decreased output rise and fall times drive larger MOSFETs,

and rail-to-rail output capability increases efﬁciency, espe-

cially at lower supply voltages. The MIC38C4x also features

a trimmed oscillator discharge current and bandgap refer-

ence.

The MIC38C4x denotes 8-pin plastic DIP, SOIC, and MSOP

packages. MIC384Cx-1 denotes 14-pin plastic DIP and

SOIC packages. 8-pin devices feature small size, while 14-

pin devices separate the analog and power connections for

improved perfomance and power dissipation.

For fast rise and fall times and higher output drive, refer to

the MIC38HC4x.

Features

• Fast 40ns output rise and 30ns output fall times

• –40°C to +85°C temperature range

meets UC284x speciﬁcations

• High-performance, low-power BiCMOS Process

• Ultralow start-up current (50µA typical)

• Low operating current (4mA typical)

• CMOS outputs with rail-to-rail swing

• ≥ 500kHz current-mode operation

• Trimmed 5V bandgap reference

• Pin-for-pin compatible with UC3842/3843/3844/3845(A)

• Trimmed oscillator discharge current

• UVLO with hysteresis

• Low cross-conduction currents

Applications

•

Current-mode, off-line, switched-mode power supplies

Current-mode, dc-to-dc converters.

Step-down “buck” regulators

Step-up “boost” regulators

Flyback, isolated regulators

Forward converters

Synchronous FET converters

Functional Diagram

VDD

7 (12)

35V

Reference

Oscillator

‡

VREF

8 (14)

UVLO

†

(VD)

(11)

RT/CT

4 (7)

OUT

6 (10)

2 (3)

2.5V

(PGND)

(8)

COMP

1 (1)

†

( )

pins

GND* (AGND) ISNS

(9)

3 (5)

‡

are on MIC38C4x-1 (14-lead) versions only

MIC38C4x, (8-lead) versions only

MIC38C42, MIC38C43 (96% max. duty cycle) versions only

MIC38C44, MIC38C45 (50% max. duty cycle) versions only

Micrel, Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel + 1 (408) 944-0800 • fax + 1 (408) 474-1000 • http://www.micrel.com

September 2007

M9999-091107

MIC38C45-1BM相似产品对比

	MIC38C45-1BM	MIC38C43BMM	MIC38C44BM	MIC38C44BMM	MIC38C45BMM	MIC38C42-1BM	MIC38C42BM	MIC38C43-1BM	MIC38C42BMM	MIC38C44-1BM
描述	Switching Controller Current-mode 0.5A 500kHz Switching Freq-Max BICMOS PDSO14	Switching Controller Current-mode 0.5A 500kHz Switching Freq-Max BICMOS PDSO8	Switching Controller Current-mode 0.5A 500kHz Switching Freq-Max BICMOS PDSO8	Switching Controller Current-mode 0.5A 500kHz Switching Freq-Max BICMOS PDSO8	Switching Controller, Current-mode, 0.5A, 500kHz Switching Freq-Max, BICMOS, PDSO8, MSOP-8	Switching Controller, Current-mode, 0.5A, 500kHz Switching Freq-Max, BICMOS, PDSO14, SOIC-14	Switching Controller Current-mode 0.5A 500kHz Switching Freq-Max BICMOS PDSO8	Switching Controller Current-mode 0.5A 500kHz Switching Freq-Max BICMOS PDSO14	Switching Controller Current-mode 0.5A 500kHz Switching Freq-Max BICMOS PDSO8	Switching Controller Current-mode 0.5A 500kHz Switching Freq-Max BICMOS PDSO14
是否Rohs认证	不符合	不符合	不符合	不符合	不符合	不符合	不符合	不符合	不符合	不符合
厂商名称	Micrel ( Microchip )	Micrel ( Microchip )	Micrel ( Microchip )	Micrel ( Microchip )	Micrel ( Microchip )	Micrel ( Microchip )	Micrel ( Microchip )	Micrel ( Microchip )	Micrel ( Microchip )	Micrel ( Microchip )
包装说明	LSOP, SOP14,.25	TSSOP, TSSOP8,.19	SOP, SOP8,.25	TSSOP, TSSOP8,.19	TSSOP, TSSOP8,.19	LSOP, SOP14,.25	SOP, SOP8,.25	LSOP, SOP14,.25	TSSOP, TSSOP8,.19	LSOP, SOP14,.25
Reach Compliance Code	not_compliant	not_compliant	not_compliant	not_compliant	not_compliant	_compli	_compli	_compli	_compli	_compli
模拟集成电路 - 其他类型	SWITCHING CONTROLLER	SWITCHING CONTROLLER	SWITCHING CONTROLLER	SWITCHING CONTROLLER	SWITCHING CONTROLLER	SWITCHING CONTROLLER	SWITCHING CONTROLLER	SWITCHING CONTROLLER	SWITCHING CONTROLLER	SWITCHING CONTROLLER
控制模式	CURRENT-MODE	CURRENT-MODE	CURRENT-MODE	CURRENT-MODE	CURRENT-MODE	CURRENT-MODE	CURRENT-MODE	CURRENT-MODE	CURRENT-MODE	CURRENT-MODE
控制技术	PULSE WIDTH MODULATION	PULSE WIDTH MODULATION	PULSE WIDTH MODULATION	PULSE WIDTH MODULATION	PULSE WIDTH MODULATION	PULSE WIDTH MODULATION	PULSE WIDTH MODULATION	PULSE WIDTH MODULATION	PULSE WIDTH MODULATION	PULSE WIDTH MODULATION
最大输入电压	30 V	30 V	30 V	30 V	30 V	30 V	30 V	30 V	30 V	30 V
最小输入电压	8.2 V	8.2 V	10 V	10 V	8.2 V	10 V	10 V	8.2 V	10 V	10 V
标称输入电压	15 V	15 V	15 V	15 V	15 V	15 V	15 V	15 V	15 V	15 V
JESD-30 代码	R-PDSO-G14	R-PDSO-G8	R-PDSO-G8	R-PDSO-G8	R-PDSO-G8	R-PDSO-G14	R-PDSO-G8	R-PDSO-G14	R-PDSO-G8	R-PDSO-G14
JESD-609代码	e0	e0	e0	e0	e0	e0	e0	e0	e0	e0
长度	8.65 mm	3 mm	4.93 mm	3 mm	3 mm	8.65 mm	4.93 mm	8.65 mm	3 mm	8.65 mm
湿度敏感等级	1	1	1	1	1	1	1	1	1	1
功能数量	1	1	1	1	1	1	1	1	1	1
端子数量	14	8	8	8	8	14	8	14	8	14
最高工作温度	85 °C	85 °C	85 °C	85 °C	85 °C	85 °C	85 °C	85 °C	85 °C	85 °C
最低工作温度	-40 °C	-40 °C	-40 °C	-40 °C	-40 °C	-40 °C	-40 °C	-40 °C	-40 °C	-40 °C
最大输出电流	0.5 A	0.5 A	0.5 A	0.5 A	0.5 A	0.5 A	0.5 A	0.5 A	0.5 A	0.5 A
封装主体材料	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY
封装代码	LSOP	TSSOP	SOP	TSSOP	TSSOP	LSOP	SOP	LSOP	TSSOP	LSOP
封装等效代码	SOP14,.25	TSSOP8,.19	SOP8,.25	TSSOP8,.19	TSSOP8,.19	SOP14,.25	SOP8,.25	SOP14,.25	TSSOP8,.19	SOP14,.25
封装形状	RECTANGULAR	RECTANGULAR	RECTANGULAR	RECTANGULAR	RECTANGULAR	RECTANGULAR	RECTANGULAR	RECTANGULAR	RECTANGULAR	RECTANGULAR
封装形式	SMALL OUTLINE, LOW PROFILE	SMALL OUTLINE, THIN PROFILE, SHRINK PITCH	SMALL OUTLINE	SMALL OUTLINE, THIN PROFILE, SHRINK PITCH	SMALL OUTLINE, THIN PROFILE, SHRINK PITCH	SMALL OUTLINE, LOW PROFILE	SMALL OUTLINE	SMALL OUTLINE, LOW PROFILE	SMALL OUTLINE, THIN PROFILE, SHRINK PITCH	SMALL OUTLINE, LOW PROFILE
峰值回流温度（摄氏度）	240	240	240	240	240	240	240	240	240	240
认证状态	Not Qualified	Not Qualified	Not Qualified	Not Qualified	Not Qualified	Not Qualified	Not Qualified	Not Qualified	Not Qualified	Not Qualified
座面最大高度	1.6 mm	1.1 mm	1.879 mm	1.1 mm	1.1 mm	1.6 mm	1.879 mm	1.6 mm	1.1 mm	1.6 mm
表面贴装	YES	YES	YES	YES	YES	YES	YES	YES	YES	YES
切换器配置	BOOST	BOOST	BOOST	BOOST	BOOST	BOOST	BOOST	BOOST	BOOST	BOOST
最大切换频率	500 kHz	500 kHz	500 kHz	500 kHz	500 kHz	500 kHz	500 kHz	500 kHz	500 kHz	500 kHz
技术	BICMOS	BICMOS	BICMOS	BICMOS	BICMOS	BICMOS	BICMOS	BICMOS	BICMOS	BICMOS
温度等级	INDUSTRIAL	INDUSTRIAL	INDUSTRIAL	INDUSTRIAL	INDUSTRIAL	INDUSTRIAL	INDUSTRIAL	INDUSTRIAL	INDUSTRIAL	INDUSTRIAL
端子面层	Tin/Lead (Sn85Pb15)	Tin/Lead (Sn85Pb15)	Tin/Lead (Sn85Pb15)	Tin/Lead (Sn85Pb15)	Tin/Lead (Sn85Pb15)	Tin/Lead (Sn85Pb15)	Tin/Lead (Sn85Pb15)	Tin/Lead (Sn85Pb15)	Tin/Lead (Sn85Pb15)	Tin/Lead (Sn85Pb15)
端子形式	GULL WING	GULL WING	GULL WING	GULL WING	GULL WING	GULL WING	GULL WING	GULL WING	GULL WING	GULL WING
端子节距	1.27 mm	0.65 mm	1.27 mm	0.65 mm	0.65 mm	1.27 mm	1.27 mm	1.27 mm	0.65 mm	1.27 mm
端子位置	DUAL	DUAL	DUAL	DUAL	DUAL	DUAL	DUAL	DUAL	DUAL	DUAL
处于峰值回流温度下的最长时间	30	30	30	30	30	30	30	30	30	30
宽度	3.9 mm	3 mm	3.94 mm	3 mm	3 mm	3.9 mm	3.94 mm	3.9 mm	3 mm	3.9 mm
Factory Lead Time	1 week	1 week	1 week	1 week	-	-	1 week	1 week	1 week	1 week

MIC38C45-1BM

MIC38C45-1BM概述

MIC38C45-1BM规格参数

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MIC38C45-1BM相似产品对比

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