Sanyo EP124 ■DC-DCConverter IC, [ExPD Use Example], Bipolar Transistors, Bipolar Transistors:, [Proposal][Proposal], Push-Pull, Full-Bridge, [Functions/Features]

Devices for SW Power Supply

6)Bipolar Transistors: Separately-excited Inverter (MOSFET for Gate Drive) [Bipolar Transistor Use Example]

•IC with large IC is recommended for driving large-capacitance MOSFET

•Composite type (PNP+NPN) is recommended for miniaturization purpose

Full-Bridge			Push-Pull	Buffer Transistor Circuit
VDD			VDD
Buffer TR	P1	P2		Buffer TR
			Buffer TR	N1
Buffer TR				CCFL
VDD		N2	Buffer TR
GND	N1
			GND	N2
Buffer TR
Buffer TR		CCFL
GND

Bipolar Transistors

			Absolute maximum ratings/Ta=25˚C					Electrical characteristics/Ta=25˚C							Internal chip
Type No.	Package	Polarity						hFE				VCE (sat) [V]				Electrical
			VCEO	IC	ICP	PC									equivalent	connection
							VCE	IC			IC	IB
			[V]	[A]	[A]	[W]			min	max			typ	max	product
							[V]	[A]			[A]	[mA]
MCH5541	MCPH5	PNP	30	0.7	3	0.5	2	0.01	200	500	0.2	10	0.11	0.22	30A02MH	B14
		NPN	30	0.7	3	0.5	2	0.05	300	800	0.2	10	0.085	0.19	+30C02MH
MCH6542		PNP	30	0.3	0.9	0.5	2	0.01	200	500	0.1	5	0.11	0.22	30A01M	B13
	MCPH6	NPN	30	0.3	0.9	0.5	2	0.01	300	800	0.1	5	0.1	0.2	+30C01M
MCH6545		PNP	50	0.5	1	0.5	2	0.01	200	500	0.1	10	0.06	0.12	50A02CH	B13
		NPN	50	0.5	1	0.5	2	0.01	300	700	0.1	10	0.05	0.1	+50C02CH
CPH5541		PNP	30	0.7	3	0.6	2	0.01	200	500	0.2	10	0.11	0.22	30A02CH	B14
		NPN	30	0.7	3	0.6	2	0.05	300	800	0.2	10	0.085	0.19	+30C02CH
CPH5506		PNP	30	1.5	5	0.9	2	0.1	200	560	0.75	15	0.25	0.375	CPH3115	B14
		NPN	30	1.5	5	0.9	2	0.1	200	560	0.75	15	0.15	0.225	+CPH3215
CPH5516	CPH5	PNP	30	2	6	0.9	2	0.1	200	560	1.5	75	0.17	0.26	CPH3144	B14
		NPN	30	2	6	0.9	2	0.1	200	560	1.5	75	0.16	0.24	+CPH3244
CPH5518		PNP	50	1	3	0.9	2	0.1	200	560	0.5	10	0.23	0.38	CPH3116	B14
		NPN	50	1	3	0.9	2	0.1	200	560	0.5	10	0.13	0.19	+CPH3216
CPH5524		PNP	50	3	6	0.9	2	0.1	200	560	1	50	0.115	0.23	CPH3123	B14
		NPN	50	3	6	0.9	2	0.1	200	560	1	50	0.09	0.13	+CPH3223

B13B14

C1 B2 E2 C2 C1

E1 B1 C2 B2 EC B1

■DC-DC Converter IC

TN8D41A/51A, TN5D41A/51A/61A: Separately-excited step-down switching regulator

[Functions/Features]

• Large current

IO max 8A (TN8D41A/51A)

• Built-in reference oscillator (150kHz)

IO max 5A (TN5D41A/51A/61A)

• Built-in current limiter

• High efficiency

Vertical-type P-channel power MOSFET built-in

• Built-in thermal shutdown circuit

• High withstand voltage

VIN max 57V

• Built-in soft start circuit

• Five external parts

• ON/OFF function (shared with soft start pin)

Type No.

Type

Input voltage

Output voltage/current

Channels

Power stage

Package

TN5D41A

Step-down

10V to 40V

5V/5A

1ch

Built-in (PMOS)

TO-220FI5H-HB

TN8D41A

Step-down

10V to 40V

5V/8A

1ch

Built-in (PMOS)

TO-220FI5H-HB

TN5D51A

Step-down

20V to 48V

12V/5A

1ch

Built-in (PMOS)

TO-220FI5H-HB

TN8D51A

Step-down

20V to 48V

12V/8A

1ch

Built-in (PMOS)

TO-220FI5H-HB

TN5D61A

Step-down

30V to 48V

24V/5A

1ch

Built-in (PMOS)

TO-220FI5H-HB

[ExPD Use Example]

VIN

VIN

SWOUT

1

3

VOUT

Pch MOSFET

Under Voltage

Over

Over Current

Temperature

Protect

Protect

Protect

SENSE

OUTPUT

+

--

OSC

SS

COMP

5

SOFTSTART

+

Band Gap

+ AMP

GND

--

FB

GND

2

4

+

GND

[Application Example for Power Supply Makers: Allows High Design Freedom]

ACIN

PFC	24V Output
Control

5/3.3V Output

ACIN		[Proposal][Proposal]
		11.. SimplificationSimplification ofof circuitscircuits
		22.. CommonCommon--izationization ofof circuitscircuits
PFC		33.. HelpsHelps reducereduce designingdesigning timetime
Control		24V Output
	TN5D/8D	5/3.3V
	Series
		Output
	5 to 8A Output

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