NJM2374AM NJR, NJM2374AM Datasheet

IC PWM DC/DC CONV 8-DMP

NJM2374AM

Manufacturer Part Number
NJM2374AM
Description
IC PWM DC/DC CONV 8-DMP
Manufacturer
NJR
Type
Step-Down (Buck), Step-Up (Boost), Invertingr
Datasheet
1.NJM2374AD.pdf (8 pages)

Specifications of NJM2374AM

Internal Switch(s)
Yes
Synchronous Rectifier
No
Number Of Outputs
1
Voltage - Output
Adjustable
Current - Output
1.5A
Frequency - Switching
100Hz ~ 100kHz
Voltage - Input
2.5 ~ 40 V
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
8-DMP
Power - Output
750mW
Output Voltage
40 V
Mounting Style
SMD/SMT
Operating Temperature Range
- 40 C to + 85 C
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Company:
Meier Automation Equipment Co., Limited Meier Automation Equipment Co., Limited
Part Number:
NJM2374AM
Manufacturer:
JRC
Quantity:
20 000
Company:
Meier Automation Equipment Co., Limited Meier Automation Equipment Co., Limited
Part Number:
NJM2374AM(TE1)
Manufacturer:
JRC
Quantity:
20 000
Company:
Meier Automation Equipment Co., Limited Meier Automation Equipment Co., Limited
Part Number:
NJM2374AM(TE2)
Manufacturer:
JRC
Quantity:
20 000
Company:
H&T Electronics H&T Electronics
Part Number:
NJM2374AM(TE2)
Quantity:
1 304
Company:
H&T Electronics H&T Electronics
Part Number:
NJM2374AM-TE1
Quantity:
230
■GENERAL DESCRIPTION
■FEATURES
■PIN CONFIGURATION
Ver.2007-06-08
handling and to avoid intermittent oscillation observed in a
simplified controller.
for EMI sensitive application.
●Operating Voltage
●NJM2374AE Operating Voltage
●Wide Oscillator Frequency
●Internal High Power Transistor
●Internal Over Current Limit Circuit
●PWM form Switching Power Supply Control
●Bipolar Technology
●Package Outline
*Ta =25°C. At low temperature, the minimum voltage is 3.0V.
The NJM2374A is a PWM DC/DC converter IC.
It features fixed frequency type PWM control for better noise
It is suitable for Step-Up, Step-Down and Inverting applications
1
2
3
4
1
2
3
4
5
6
7
NJM2374AD
NJM2374AM
NJM2374AE
NJM2374AV
PWM DC/DC CONVERTER IC
(2.5V* to 40V)
(2.5V* to 48V)
(100Hz to 100kHz)
1.5A (max.)
DIP8, DMP8, EMP8, SSOP14
8
7
6
5
14
13
12
11
10
9
8
PIN FUNCTION
1.C
2.E
3.C
4.GND
PIN FUNCTION
1.C
2.NC
3.E
4.NC
5.C
6.NC
7.GND
■PACKAGE OUTLINE
S
S
S
T
S
T
5.IN
6.V
7.S
8.C
10.V
11.NC
12.S
13.NC
14.C
8.IN
9.NC
NJM2374AD
NJM2374AE
+
I
D
+
+
I
D
+
NJM2374A
NJM2374AV
NJM2374AM
- 1 -

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NJM2374AM Summary of contents

Page 1

... DIP8, DMP8, EMP8, SSOP14 PIN FUNCTION 8 1 3.C T 4.GND 6 5 PIN FUNCTION 14 1 2. 4. 6.NC 8 7.GND NJM2374A NJM2374AD NJM2374AM NJM2374AE NJM2374AV + 5.IN + 6.V 7 8.IN 9.NC + 10.V 11.NC 12.S I 13.NC 14 ...

Page 2

NJM2374A ■BLOCK DIAGRAM GND GND - PWM Logic 1.5A R 160Ω 2 Vth=300mV Maximum ON duty 9:1 OSC BLOCK Ipk ...

Page 3

... V (NJM2374AE: 48V (NJM2374AE: 48V) -0 (NJM2374AE: 48V) (DIP8) (DMP8 (EMP8) (SSOP14) Topr -40 ~ +85 Tstg -50 ~ +150 (Topr=-40 to +85°C,Tj= to +150°C) NJM2374AE board NJM2374AD NJM2374AM board NJM2374AV 50 Ambient Temperature Ta (°C) NJM2374A UNIT 875 750 (note1) mW 1,000 (note1) 375 °C °C 75 100 - 3 - ...

Page 4

NJM2374A ■ELECTRICAL CHARACTERISTICS + DC Characteristics (V =5V, Ta=25°C) PARAMETER SYMBOL Operating Current 1 I CC1 Operating Current 2 I CC2 (NJM2374AE Only) Charge Current I chg Discharge Current I Voltage Swing V OSC Discharge to Charge I ratio Current ...

Page 5

CHARACTERISTICS Oscillator Frequency vs. Timing Capacitor + + (V =5V,S =V ,Pin5=GND,Ta=25°C) I 1000 100 10 1 100 1000 Timing Capacitor C Saturation Voltage 1 vs. Collector Current + (V =5V 1 ...

Page 6

NJM2374A ■TIPICAL CHARACTERISTICS Threshold Voltage vs. Temperature + (V =5V) 1.3 1.28 1.26 1.24 1.22 -50 - Ambient Temperature Ta (°C) Saturation Voltage 1 vs. Temperature + (V =5V 1.2 1.1 1 0.9 0.8 0.7 ...

Page 7

APPLICATIONS Step-Down Converter V =25V IN In the case of Step-Down Conversion with the internal power transistor, the Output Voltage must be set lower than 6V. Step-Up Converter V =14V IN Inverting Converter V = the case ...

Page 8

NJM2374A Step-Down Converter (High Current =20V 0.05Ω 300µF Step-Up Converter (High Current =5V 0.075Ω 940µF D1 use to schottky diode 300Ω ...

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