irs27951s International Rectifier Corp., irs27951s Datasheet - Page 6

• Manufacturer Part Number: irs27951s
• Description: Resonant Half-bridge Converter Control Ic
• Manufacturer: International Rectifier Corp.

Electrical Characteristics
VCC=VBS=15V, VS=0V, CVCC=CBS=0.1uF, CLO=CHO=1nF, RT=50.5 kΩ, CT=200pF and TA = 25°C unless
otherwise specified. The output voltage and current (VO and IO) parameters are referenced to COM and are
applicable to the respective HO and LO output leads.
Low Voltage Supply Characteristics
Floating Supply Characteristics
Oscillator I/O Characteristics
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V
V
Symbol
I
I
I
I
I
I
I
CC285KHz
V
V
BS285KHz
V
CCSTART
BSSTART
CTSTART
CC46KHz
V
CCUVHYS
BS46KHz
I
BSUVHYS
I
V
SLEEP
I
V
CCUV +
I
V
CM
BSUV+
CCUV -
BSUV-
LKVS
f
QCC
QBS
t
SW
D
CT+
DT
CT-
RT
V
V
(Under Voltage Lock Out)
V
V
Sleep mode V
Quiescent V
V
V
V
V
(Under Voltage Lock Out)
V
VS Offset supply leakage current
V
Quiescent V
V
V
Oscillator frequency
Upper CT ramp voltage threshold
Lower CT ramp voltage threshold
CT/SD pin startup current
Voltage reference at RT pin
Current mirror ratio
Output duty cycle (LO and HO)
High/low output dead time
CC
CC
CC
CC
CC
CC
BS
BS
BS
BS
BS
BS
turn on threshold
turn on threshold
undervoltage lockout hysteresis
startup current
operating current @ f
operating current @ f
turn on threshold
turn off threshold
undervoltage lockout hysteresis
startup current
operating current @ f
operating current @ f
CC
BS
CC
supply current
supply current
supply current
Definition
osc
osc
osc
osc
= 46KHz
= 285KHz
= 46KHz
= 285KHz
6
10.1
44.3
1.92
Min
271
170
8.1
7.6
48
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---
---
---
---
---
---
---
---
---
---
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7
46.6
Typ
150
285
210
3.1
8.7
8.5
7.9
0.6
5.7
5.0
3.0
2.0
11
50
50
50
10
50
---
9
2
2
1
1
Max
11.9
48.9
2.08
100
200
100
100
299
250
9.9
2.5
4.5
9.4
8.8
1.5
50
52
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11
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7
Units
kHz
A/A
mA
mA
µA
μA
μA
ns
%
V
V
V
V
© 2010 International Rectifier
V
V
V
V
IRS27951S
IRS27952S
CT/SD
Test Conditions
EN1
EN1
V
BS
V
B
V
RT=50.5k Ω
RT=7.32k Ω
RT=50.5k Ω
RT=7.32k Ω
RT=50.5 kΩ
RT=7.32 kΩ
CC
CT=200pF,
CT=200pF,
≤ V
CT=200pF
< V
= V
< V
CT/SD
<V
-0.1V
GBD
BSUV+
N/A
N/A
CT/SD
CT/SD
EN2
S
= V
< V
= 600 V
, V
CCUV+
< 4.5V
< 4.5V
- 0.1V
EN1
BS
=0V