lm5027mhx National Semiconductor Corporation, lm5027mhx Datasheet - Page 5

• Manufacturer Part Number: lm5027mhx
• Description: Voltage Mode Active Clamp Controller
• Manufacturer: National Semiconductor Corporation

Symbol
VIN SUPPLY
Ibias
VCC REGULATOR
VccReg
REFERENCE SUPPLY
UVLO/OTP THRESHOLDS
SOFT-START
VIN to GND
VCC to GND
UVLO to GND
All other inputs to GND
COMP Input Current
COMP, REF
Absolute Maximum Ratings
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
Electrical Characteristics
junction temperature range of –40°C to +125°C. Unless otherwise specified, the following conditions apply: VIN = 48V, VCC = 10V,
RT= 27.4K , No Load on OUTA, OUTB and OUTSR unless otherwise stated.
VIN Operating Current
VIN Shutdown Current
VCC Regulation
VCC Current Limit
VCC Regulator load regulation
VCC Under-voltage Lockout
Voltage
VCC Regulation
VCC Under-voltage Lockout
Voltage
VCC Supply Current (Icc)
Reference Voltage
Reference Voltage Regulation
Reference Current Limit
REF Under-voltage Threshold
UVLO Threshold
UVLO Hysteresis Current
UVLO Shutdown Threshold
UVLO Standby Enable
Threshold
OTP Shutdown Threshold
OTP Hysteresis Current
SS Charging Current Source
SS Rising Threshold for SSSR
charge current enable
SSSR Charging Current Source SSSR = 0V, SS>4V
SSSR Discharge Current
Source in Soft Stop
SSSR Falling Threshold for SS
Soft Stop
SS output low voltage
SSSR output low voltage
(Note
2)
Parameter
-0.3V to 105V
-0.3V to 16V
-0.3 to 8V
-0.3 to 7V
10 mA
Limits in standard type are for T
COMP and VCC Open, UVLO and OTP = 3V
UVLO = 0V, Vin = 100 V
No Load (SS<4V)
VCC=9.5V
IVCCREG 0 to 15 mA
Positive going VCC
No Load
Negative going Vcc
Supply current into VCC form an external
source, CGATE = OPEN, VCC 10V
IREF = 0mA
IREF= 0 to 10mA
UVLO >0.4V, VCC >9.5V
UVLO
ULVLO voltage falling
UVLO voltage rising
OTP rising
OTP
SS = 0V
Sinking 100 µA UVLO = 0
(Note
1)
Conditions
5
ESD Rating
Storage Temperature Range
Junction Temperature
VIN
VCC
Operating Junction Temperature
Operating Ratings
Human Body Model
J
= 25°C only; limits in boldface type apply over the
(Note
3)
–180mV
VccReg
4.85
1.21
Min
9.1
7.3
5.7
3.8
1.9
3.8
1.5
55
10
16
15
17
18
14
(Note
VccReg –
100mV
17.5
1.25
Typ
310
120
100
9.5
7.5
6.0
5.0
0.3
0.4
2.2
65
75
10
20
20
22
25
20
2
4
1)
2kV
-55°C to 150°C
150°C
-40°C to +125°C
Max
5.15
1.29
650
9.9
7.7
6.3
5.5
2.1
4.2
3.0
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20
25
24
26
30
26
6
13 to 90V
8 to 15V
Units
mA
mA
mV
mA
mV
mA
mV
mV
µA
µA
µA
µA
µA
µA
V
V
V
V
V
V
V
V
V
V
V
V