Sanyo LA5645M Specifications

Ordering number : ENN6489

Monolithic Linear IC

LA5645M

Constant-Voltage/Constant-Current Control IC

Overview

The LA5645M is a constant-voltage/constant-current control IC that incorporates low-voltage operational amplifiers and a high-precision reference voltage circuit (VREF = 1.5 V ±1.0%). This device is optimal for use as a secondary side controller in battery chargers, switching regulators, and similar products.

Features

•Operating supply voltage: 2.5 to 14 V

•High-precision reference voltage: 1.5 V ±1.0%

•PC pin current: 60 mA (max)

•Current drain: 3 mA (max)

•Input offset voltage: 2 mV (max)

Package Dimensions

unit: mm

3032B-MFP8

[LA5645M]

8	5	0.625
	4.4	5.15	6.4

1	4	1.8max	0.15
	5.1
		1.5
		0.1
0.35	1.27	0.645

SANYO: MFP8

Specifications

Maximum Ratings at Ta = 25°C

	Parameter	Symbol	Conditions	Ratings	Unit
	Supply voltage	VCC max		14.5	V
	Differential input voltage	VID max		14.5	V
	PC pin current	IPC max		60	mA
	Allowable power dissipation	Pd max	Independent IC	300	mW
			Mounted on the specified printed circuit board*	800	mW
	Operating temperature	Topr		–40 to +85	°C
	Storage temperature	Tstg		–50 to +150	°C

Note: * Specified printed circuit board: 76.1 × 114.3 × 1.6 mm3, glass epoxy board.

Operating Conditions at Ta = 25°C

Parameter	Symbol	Conditions	Ratings	Unit
Recommended supply voltage	Vopr		2.5 to 14	V

Any and all SANYO products described or contained herein do not have specifications that can handle applications that require extremely high levels of reliability, such as life-support systems, aircraft’s control systems, or other applications whose failure can be reasonably expected to result in serious physical and/or material damage. Consult with your SANYO representative nearest you before using any SANYO products described or contained herein in such applications.

SANYO assumes no responsibility for equipment failures that result from using products at values that exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or other parameters) listed in products specifications of any and all SANYO products described or contained herein.

SANYO Electric Co.,Ltd. Semiconductor Company

TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN

83000RM (OT) No. 6489-1/5

LA5645M

Pd max — Ta

	1.0			Board size: 76.1 × 114.3 × 1.6 mm3
W
	Mounted on the specified			Board material: glass epoxy
—
	printed circuit board
Pdmax
	0.8
dissipation,	0.6
							0.41
power	0.4
	0.3	Independent IC
Allowable	0.2
							0.16
	0.0	0	20	40	60	80	100
	–20

Ambient temperature, Ta — °C

Electrical Characteristics at Ta = 25°C, VCC = 5 V

	Parameter	Symbol	Conditions		Ratings		Unit
				min	typ	max
	Current drain	ICC	IPC = OFF		1	3	mA
	Leakage current	IPC LEAK	VCC = VPC = 14 V			100	µA
	Saturation voltage	VPC (sat)	IPC = 50 mA		0.5	0.7	V
	Reference voltage	VREF	IREF = 0 mA	1485	1500	1515	mV
	Reference voltage regulation	VREF/ IREF	IREF = 0 to 5 mA			30	mV
	[Amplifier Block] (Characteristics common to both channels A and B)
	Input offset voltage	VIO			0.5	2	mV
	Input offset current	IIO			5	50	nA
	Input bias current	IB			80	250	nA
	Voltage gain	AV	Open loop gain (design guarantee*)		80		dB
	Common-mode input voltage range	VICM		0		VCC – 2	V
	Slew rate	SR	Design guarantee*		0.8		V/µs
	Gain-bandwidth product	GB	Design guarantee*		2		MHz

Note: * Design guarantee value. These parameters are not measured.

Pin Assignment

PC	1			8	VCC
	–	A
A–INPUT		+
	2		VREF	7	VREF
		+	B
			–
A+INPUT	3			6	B–INPUT
GND	4			5	B+INPUT
					A13183

No. 6489-2/5