US1651 Datasheet, PDF (3/7 Pages) Unisonic Technologies – PRIMARY-SIDE REGULATION PWM POWER SWITCH

US1651
Preliminary
CMOS IC
 ABSOLUTE MAXIMUM RATING (T_A=25°C, unless otherwise specified)
PARAMETER
SYMBOL
RATINGS
UNIT
Drain Voltage (Off State)
V_DD Voltage
B_VDSS
-0.3~650
V
V_DD
-0.3~33
V
V_DDG Voltage
V_DDG
-0.3~33
V
V_DD Zener Clamp Continuous Current
I_{DD_clamp}
10
mA
CS Input Voltage
INV Input Voltage
V_CS
-0.3~7
V
Vinv
-0.3~7
V
Operating Junction Temperature
Storage Temperature
T_J
T_STG
-20~150
°C
-55~150
°C
Note: Absolute maximum ratings are those values beyond which the device could be permanently damaged.
Absolute maximum ratings are stress ratings only and functional device operation is not implied.
 ELECTRICAL CHARACTERISTICS (T_A=25°C, V_DD=V_DDG=16V, unless otherwise specified)
PARAMETER
Supply Voltage (V_DD) Section
Standby Current
Operation Current
V_DD Under Voltage Lockout Enter
V_DD Under Voltage Lockout Exit
Over Voltage Protection Voltage
I_DD=10mA
Current Sense Input Section
LEB Time
VTH_OC_test
Propagation Delay
Input Impedance
Soft Start Time
CV Section
Normal Mode Frequency
Burst Mode Base Frequency
Frequency Shuffling Range
CC Section
Oscillation Frequency
Error Amplifier section
Reference Voltage for EA
DC Gain of the EA
Unity Gain Bandwidth
Power MOSFET Section
Mos Drain-Source Breakdown
Voltage
Static Drain to Source On
Resistance
OTP SECTION
Threshold Temperature of OTP
(Note)
SYMBOL
TEST CONDITIONS
MIN TYP MAX UNIT
I_{DD ST}
V_DD=13V
5 10 μA
I_{DD op}
Operation Supply Current
I_NV=1.25V, C_S=0V, V_DD=V_DDG=20V
1.0 2.0 mA
U_VLO(ON)
7.5 8.5 9.5 V
U_VLO(OFF)
14.0 15 16.0 V
O_VP(ON)
C_S=0V,I_NV=1V Ramp up V_DD Until
Gate Clock is Off
28.5 30.0 31.5
V
V_{DD_clamp}
33
V
T_LEB
V_{th_oc}
T_{d_oc}
Z_{SENSE_IN}
T_ss
1.2
μs
780 820 860 mV
300
ns
50
KΩ
4
ms
Freq
Freq_Burst
△f/Freq
45 50 55 KHz
22
KHz
±4
%
Freq
Minimum frequency
Maximum frequency
12
KHz
50
KHz
V_{REF_EA}
Gdc
G_BW
1.21 1.25 1.29 V
50
dB
37.5
kHz
BV_DSS
R_DS(ON)
650
V
12
Ω
T_OTP
+150
°C
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
3 of 7
QW-R129-005.a