TN5D51A
Ordering number : ENA1031
SANYO Semiconductors
DATA SHEET
TN5D51A
ExPD (Excellent-Performance Power & RF Device)
Separately-Excited Step-Down
Switching Regulator (12V Output type)
Features
•
•
•
•
•
•
High efficiency (ON resistance 100mΩ, Vertical-type P-ch Power MOSFET).
Over current protection function (Self recovery type).
Under voltage protection function.
Over temperature protection function (Self recovery type).
Soft start function (Variable subject to externally-connected capacitor).
Stand-by mode function (Compatible with soft start terminal).
Specifications
Absolute Maximum Ratings at Ta=25°C
Parameter
Maximum Input Voltage
Maximum Output Current
Drain-to-Source Voltage of built-in MOSFET
Drain Current of built-in MOSFET (DC)
Symbol
Ratings
Unit
57
5
A
VDSS
ID
--60
V
Drain Current of built-in MOSFET (Pulse)
IDP
FB Pin Maximum Input Voltage
Vfb
VSS
SS Pin Maximum Input Voltage
Conditions
VIN max
IO max
Allowable Power Dissipation
PD
Operating Temperature
Topr
Junction Temperature
Tj
Storage Temperature
Tstg
PW≤10μs, duty cycle≤1%
Tc=25°C
V
--9
A
--36
A
15
V
7
V
2.0
W
15
W
--25 to +125
°C
150
°C
--55 to +150
°C
Any and all SANYO Semiconductor Co.,Ltd. products described or contained herein are, with regard to
"standard application", intended for the use as general electronics equipment (home appliances, AV equipment,
communication device, office equipment, industrial equipment etc.). The products mentioned herein shall not be
intended for use for any "special application" (medical equipment whose purpose is to sustain life, aerospace
instrument, nuclear control device, burning appliances, transportation machine, traffic signal system, safety
equipment etc.) that shall require extremely high level of reliability and can directly threaten human lives in case
of failure or malfunction of the product or may cause harm to human bodies, nor shall they grant any guarantee
thereof. If you should intend to use our products for applications outside the standard applications of our
customer who is considering such use and/or outside the scope of our intended standard applications, please
consult with us prior to the intended use. If there is no consultation or inquiry before the intended use, our
customer shall be solely responsible for the use.
Specifications of any and all SANYO Semiconductor Co.,Ltd. products described or contained herein stipulate
the performance, characteristics, and functions of the described products in the independent state, and are not
guarantees of the performance, characteristics, and functions of the described products as mounted in the
customer' s products or equipment. To verify symptoms and states that cannot be evaluated in an independent
device, the customer should always evaluate and test devices mounted in the customer' s products or
equipment.
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN
22708IQ TI IM TC-00001255 No. A1031-1/11
TN5D51A
Recommend Operating Conditions
Parameter
Symbol
Input Voltage
Output Current
Operating Temperature Range
Conditions
Ratings
Unit
VIN
Ta=25°C
20 to 48
V
IOUT
Ta=25°C
0 to 5
A
--10 to +85
°C
Topr rec
Electrical Characteristics at Ta=25°C, See Specified Test Circuit
Parameter
Symbol
Output Voltage
Conditions
VOUT
η
Efficiency
Drain-to-Source Breakdown Voltage
V(BR)DSS
of built-in MOSFET
Drain-to-Source On Resistance
RDS(on)
of built-in MOSFET
Switching Frequency
Freq
Maximum Duty
Duty max
Line Regulation
ΔVline
Load Regulation
ΔVload
Output Voltage Temperature Coefficient *1
ΔVO / ΔTa
Over-Current-Protection-Operation
Iocp
-Threshold Voltage
Under-Voltage-Protection-Operation
-Release Voltage
Under-Voltage-Protection Hysteresis Voltage
Over-Temperature-Protection-Operation
-Threshold-Current *1
Over-Temperature-Protection-Operation
-Release Temperature *1
Over-Temperature-Protection
-Hysteresis Temperature *1
SS Terminal Current
VIN=30V, IOUT=3A
VIN=30V, IOUT=3A
11.7
ID=--1mA, VIN, GND, Vfb, VSS=0V
--60
12.4
V
%
V
100
mΩ
120
150
180
88
92
96
%
130
200
mV
70
100
VIN=30V, IOUT=0.5 to 5A
VIN=30V, IOUT=3A, Ta= --25 to +125°C
VIN=30V
12.0
92
ISW=5A
VIN=30V, IOUT=3A
VIN=30V, Vfb=0V
VIN=20 to 40V, IOUT=3A
Unit
max
kHz
mV
mV / °C
±1.2
7.5
10
A
Vuvlo on
7.2
8.0
8.8
V
Vuvlo off
8.1
9.0
9.9
V
Vuvlo hys
1.0
V
Ttsd on
165
°C
Ttsd off
140
°C
Ttsd hys
25
°C
10
μA
ISS
Vstb on
Standby Operating Voltage
typ
5.1
-Threshold Current
Under-Voltage-Protection-Operation
Ratings
min
Standby Current
Istb
VIN=30V
VIN=30V
VIN=30V, VSS=0V
0.3
V
500
μA
Note: the values with "*1" are our targeted values, but not guaranteed.
Package Dimensions
unit : mm (typ)
7527-001
10.0
4.5
3.2
1.6
16.0
7.2
3.5
2.8
1
2
3
4
(5.9)
0.9
0.5
12.5
14.0
2.4
5
1.27
0.7
3.81
2.54
1.27
2.54
2.75
1 : VIN
2 : GND
3 : SWOUT
4 : FB
5 : SS
SANYO : TO-220FI5H-HB
No. A1031-2/11
TN5D51A
Block Diagram
VIN 1
3 SWOUT
Under
Voltage
Protect
Over
Temperature
Protect
Over Current
Protect
SENSE
Pch MOSFET
OUTPUT
-COMP
+
OSC
SS 5
SOFTSTART
Band Gap
+
AMP
--
4 FB
GND 2
Pin Functions
Pin No.
Symbol
1
VIN
Power Supply Input (Maximum 57V)
Function
2
GND
GND
3
SWOUT
4
FB
Feedback from Output Voltage
5
SS
For Soft Start Capacitor Connection and Standby Mode Switching
Pulse Voltage Output
Application Circuit Example
1 VIN
SWOUT 3
VOUT
VIN
5 SS
+
FB 4
+
2 GND
GND
GND
No. A1031-3/11
TN5D51A
Forward Bias A S O
IDP= --36A
3
Drain Current, ID -- A
μs
10
0μ
2
ID= --9A
--10
7
5
s
1m
s
10
ms
10
DC 0m
op s
era
tio
3
2
n
Operation in
this area is
limited by RDS(on).
--1.0
7
5
3
2
Tc=25°C
Single pulse
--0.1
--0.1
2
3
2.0
No
1.5
he
at
sin
k
1.0
0.5
0
5 7 --1.0
2
3
5 7 --10
2
3
5 7 --100
IT13248
Drain-to-Source Voltage, VDS -- V
0
20
40
60
80
100
120
Ambient Temperature, Ta -- °C
140
160
IT12620
PD -- Tc
20
Allowable Power Dissipation, PD -- W
PD -- Ta
2.5