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Devices for SW Power Supply
27
6) Bipolar Transistors: Separately-excited Inverter (MOSFET for Gate Drive)
Bipolar Transistors
Type No. Package Polarity
Absolute maximum ratings/Ta=25˚C
Electrical characteristics/Ta=25˚C
Internal chip
equivalent
product
Electrical
connection
V
CEO
[V]
I
C
[A]
I
CP
[A]
P
C
[W]
h
FE
V
CE
(sat) [V]
V
CE
[V]
I
C
[A]
min max
I
C
[A]
I
B
[mA]
typ max
MCH5541 MCPH5
PNP 30 0.7 3 0.5 2 0.01 200 500 0.2 10 0.11 0.22
30A02MH
+30C02MH
B14
NPN 30 0.7 3 0.5 2 0.05 300 800 0.2 10 0.085 0.19
MCH6542
MCPH6
PNP 30 0.3 0.9 0.5 2 0.01 200 500 0.1 5 0.11 0.22
30A01M
+30C01M
B13
NPN 30 0.3 0.9 0.5 2 0.01 300 800 0.1 5 0.1 0.2
MCH6545
PNP 50 0.5 1 0.5 2 0.01 200 500 0.1 10 0.06 0.12
50A02CH
+50C02CH
B13
NPN 50 0.5 1 0.5 2 0.01 300 700 0.1 10 0.05 0.1
CPH5541
CPH5
PNP 30 0.7 3 0.6 2 0.01 200 500 0.2 10 0.11 0.22
30A02CH
+30C02CH
B14
NPN 30 0.7 3 0.6 2 0.05 300 800 0.2 10 0.085 0.19
CPH5506
PNP 30 1.5 5 0.9 2 0.1 200 560 0.75 15 0.25 0.375
CPH3115
+CPH3215
B14
NPN 30 1.5 5 0.9 2 0.1 200 560 0.75 15 0.15 0.225
CPH5516
PNP 30 2 6 0.9 2 0.1 200 560 1.5 75 0.17 0.26
CPH3144
+CPH3244
B14
NPN 30 2 6 0.9 2 0.1 200 560 1.5 75 0.16 0.24
CPH5518
PNP 50 1 3 0.9 2 0.1 200 560 0.5 10 0.23 0.38
CPH3116
+CPH3216
B14
NPN 50 1 3 0.9 2 0.1 200 560 0.5 10 0.13 0.19
CPH5524
PNP 50 3 6 0.9 2 0.1 200 560 1 50 0.115 0.23
CPH3123
+CPH3223
B14
NPN 50 3 6 0.9 2 0.1 200 560 1 50 0.09 0.13
B13 B14
C1 B2
E1 B1
E2
C2
B1EC
C1
B2
C2
[Bipolar Transistor Use Example]
Buffer Transistor Circuit
Push-PullFull-Bridge
N1
P1
N2
P2
V
DD
GND
GND
CCFL
Buffer TR
Buffer TR
V
DD
Buffer TR
Buffer TR
CCFL
N1
N2
V
DD
GND
Buffer TR
Buffer TR
Buffer TR
• IC with large IC is recommended for driving large-capacitance MOSFET
• Composite type (PNP+NPN) is recommended for miniaturization purpose
TN8D41A/51A, TN5D41A/51A/61A: Separately-excited step-down switching regulator
[Functions/Features]
• Large current I
O
max 8A (TN8D41A/51A)
I
O
max 5A (TN5D41A/51A/61A)
• High effi ciency Vertical-type P-channel power MOSFET built-in
• High withstand voltage V
IN
max 57V
• Five external parts
• Built-in reference oscillator (150kHz)
• Built-in current limiter
• Built-in thermal shutdown circuit
• Built-in soft start circuit
• 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
■
DC-DC Converter IC
[ExPD Use Example]
+
GND
V
OUT
+
V
IN
GND
V
IN
SS
GND
SW
OUT
FB
Under Voltage
Protect
SOFTSTART
Band Gap
OSC
AMP
COMP
OUTPUT
Over
Temperature
Protect
Over Current
Protect
SENSE
Pch MOSFET
--
+
--
+
1
5
2
3
4
[Application Example for Power Supply Makers: Allows High Design Freedom]
24V Output
ACIN
PFC
Control
5/3.3V
Output
24V Output
ACIN
PFC
Control
5/3.3V
Output
TN5D/8D
Series
5to8AOutput
[Proposal]
1. Simplification of circuits
2. Common-ization of circuits
3. Helps reduce designing time
[Proposal]
1. Simplification of circuits
2. Common-ization of circuits
3. Helps reduce designing time