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NJU7602

JRC
Part Number NJU7602
Manufacturer JRC
Description Step-Up / Flyback switching regulator IC
Published Jun 12, 2009
Detailed Description NJU7602 Step-Up / Flyback switching regulator IC with standby function ■GENERAL DESCRIPTION The NJU7602 is a low volta...
Datasheet PDF File NJU7602 PDF File

NJU7602
NJU7602

Overview
NJU7602 Step-Up / Flyback switching regulator IC with standby function ■GENERAL DESCRIPTION The NJU7602 is a low voltage operation high-speed switching regulator control IC for step-up and flyback converter, with a standby function.
It incorporates a totem pole output, which can drive an external MOS-FET easily.
The NJU7602 also has a soft-start function, dead time control and timer latch for short circuit protection and their times are all adjustable with external parts.
Further the internal standby function minimize the current during non-active condition.
It is available in 8-lead DMP and MSOP (TVSP) packages, and it is suitable for battery powered applications.
■PACKAGE OUTLINE NJU7602M (DMP8) NJU7602RB1 (MSOP8(TVSP8)) ■FEATURES ■PRODUCT VARIATION ● PWM switching control ● Standby Function NJU760x** ● Operating Voltage ● Wide Oscillator Range 2.
2V to 8V 300kHz to 1MHz Standby Terminal ● Maximum Duty Cycle 90% typ.
NJU7602 ● Quiescent Current ● Soft-Start Function Operating :800µA typ.
Standby :1µA max.
Internal :16ms typ.
or adjustable Standby Function NJU7600 ● Dead Time Control ● Timer Latch for Short Circuit Protection PWM Control ● C-MOS Technology ** Planning ● Package Outline NJU7602M : DMP8 NJU7602RB1 : MSOP8 (TVSP8)* *MEET JEDEC MO-187-DA / THIN TYPE ■PIN CONFIGURATION 1 2 3 4 NJU7602M NJU7602RB1 8 7 6 5 PIN FUNCTION 1.
V+ 2.
FB 3.
IN 4.
SCP 5.
DTC 6.
RT 7.
GND 8.
OUT Ver.
2012-08-03 -1- NJU7602 ■BLOCK DIAGRAM FB IN- 1V Vref V+ ER⋅AMP Soft Start Latch UVLO SCP 1V 2µA SCP 2kΩ 1V 0.
5 RT A DTC 0.
8V 0.
2V OSC 0.
5V PW M Buffer OUT 0.
74V Standby ON/OFF RT RT V+ GND RP ON/OFF High: ON Low : OFF (Standby) -2- Ver.
2012-08-03 NJU7602 ■ABSOLUTE MAXIMUM RATINGS PARAMETER Supply Voltage Output Pin Current Power Dissipation SYMBOL V+ IO PD Operating Temperature Range Storage Temperature Range TOPR TSTG MAXIMUM RATINGS +9 ±50 DMP8 :300 MSOP8 (TVSP8) :320 -40 to +85 -40 to +125 (Ta=25°C) UNIT V mA mW °C °C ...


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