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HT2273 数据表(PDF) 4 Page - Hotchip Technology Co.,Ltd

部件名 HT2273
功能描述  Burst Mode Control
PDF  10 Pages
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制造商  HOTCHIP [Hotchip Technology Co.,Ltd]
网页  http://www.hotchip.com.cn/English/Index/index.html
标志 HOTCHIP - Hotchip Technology Co.,Ltd

HT2273 数据表(HTML) 4 Page - Hotchip Technology Co.,Ltd

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HT2273
4/10
Current Mode PWM Controller
www.hotchip.com.cn
Ver1.0
Recommended Operating Condition
Symbol
Parameter
Value
Unit
VCC
VCC supply voltage
10~30
V
RT
RT resistor value
100
Kohm
TA
Operating temperature
-20~85
℃
Electrical Characteristics（TA=25℃，VCC=16V, if not otherwise noted）
Supply Voltage (VCC)
Symbol
Parameter
Test Conditions
Min
Typ
Max
Unit
VCC_OP
Operation voltage
30
V
UVLO_ON
Turn on threshold Voltage
6
7
8
V
UVLO_OFF
Turn-off threshold Voltage
12.5
13.5
14.5
V
I_VCC_ST
Start up current
VCC=13V
5
20
uA
I_VCC_OP
Operation Current
VFB=3V
1.8
2.5
mA
Vpull_up
Pull-up PMOS active
13
VCC_Clamp
VCC Zener Clamp
IVCC=10mA
30
32
34
V
Voltage
OVP(ON)
Over voltage protection
voltage
CS=0.3V,FB=3V,
Ramp up VCC until
gate clock is off
26
28
30
Vlatch_release
Latch release voltage
5
V
Feedback Input Section
VFB_Open
VFB Open Loop Voltage
3.9
4.2
V
Avcs
PWM input gain Δ Vfb/Δ
Vcs
2
V/V
Vref_green
The threshold enter green
mode
2.1
V
Vref_burst_H
The threshold exit burst
mode
1.3
V
Vref_burst_L
The threshold enter burst
mode
1.2
V
IFB_Short
FB Pin Short Current
FB Shorted to GND
0.4
mA
VTH_PL
Power limiting FB
Threshold
3.7
V
TD_PL
Power limiting Debounce
80
88
96
ms
ZFB_IN
Input Impedance
16
kΩ
Max_Duty
Maximum duty cycle
75
80
85
%



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