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HT2273 数据表(PDF) 5 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) 5 Page - Hotchip Technology Co.,Ltd

  HT2273 Datasheet HTML 1Page - Hotchip Technology Co.,Ltd HT2273 Datasheet HTML 2Page - Hotchip Technology Co.,Ltd HT2273 Datasheet HTML 3Page - Hotchip Technology Co.,Ltd HT2273 Datasheet HTML 4Page - Hotchip Technology Co.,Ltd HT2273 Datasheet HTML 5Page - Hotchip Technology Co.,Ltd HT2273 Datasheet HTML 6Page - Hotchip Technology Co.,Ltd HT2273 Datasheet HTML 7Page - Hotchip Technology Co.,Ltd HT2273 Datasheet HTML 8Page - Hotchip Technology Co.,Ltd HT2273 Datasheet HTML 9Page - Hotchip Technology Co.,Ltd Next Button
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HT2273
5/10
Current Mode PWM Controller
www.hotchip.com.cn
Ver1.0
Current CS Section
SST
Soft Start time
4
ms
TLEB
Leading edge Blanking
Time
220
ns
ZCS
Input impedance
40
kΩ
TD_OC
OCP control delay
GATE with 1nF to
GND
120
ns
VTH_OC
OCP threshold
FB＝3V
0.75
V
Vocp_clamping
0.9
V
Oscillator Section
Fosc
Normal Oscillation
Frequency
VCC=14V,FB=3V,
CS=0.3V
60
65
70
khz
Fosc_BM
Burst mode frequency
22
khz
∆f_temp
Frequency variation
versus temp. Deviation
TEMP = -20 to 85℃
1
%
∆f_VCC
Frequency variation
versus VCC
VCC = 12 to 25V
1
%
F_shuffling
Shuffling Frequency
32
Hz
∆f_OSC
Frequency Jittering
±4
%
GATE Output Section
VOL
Output voltage Low
VCC = 14V, Io = -
5mA
1
V
VOH
Output voltage high
VCC = 14V, Io =
20mA
6
V
Vclamp
Output clamp voltage
12
V
Tr
Rising time
GATE with 1nF to
GND， Gate 从
1~12V
175
ns
Tf
Falling time
GATE with 1nF to
GND， Gate 从
12~1V
85
ns
Over temperature protection
IRT
Output current of RT pin
95
100
105
uA
Votp
Threshold voltage for
OTP
0.95
1
1.05
V
Td_OTP
OTP debounce time
16
Cycle
VRT_FL
Float voltage at RT pin
2.3
V
Vth_OVP
External OVP threshold
voltage
4
V



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