參數(shù)資料
型號(hào): HT82P604B
廠商: Holtek Semiconductor Inc.
元件分類: DC/DC變換器
英文描述: DC-DC Converter
中文描述: DC - DC轉(zhuǎn)換
文件頁(yè)數(shù): 5/7頁(yè)
文件大?。?/td> 91K
代理商: HT82P604B
Symbol
Parameter
Test Conditions
Min.
Typ. Max. Unit
V
CC
Conditions
Lower Threshold
(V
SEN
/DACOUT)
12V V
SEN
Falling
89
94
%
Hysteresis
(V
SEN
/DACOUT)
12V
Upper and Lower
Threshold
2
%
V
PGOOD
PGOOD Voltage Low
12V I
PGOOD
= 5mA
0.5
V
HT82P604B
5
March 23, 2000
Preliminary
Functional Description
Output voltage program
The output voltage of a HT82P604B converter
is programmed to discrete levels between 1.3V
and 3.5V. The voltage identification (VID) pins
program an internal voltage reference
(DACOUT) with a 5-bit digital-to-analog con-
verter (DAC). The level of DACOUT also sets
the PGOOD and OVP thresholds. Table 1 speci-
fies the DACOUT voltage for the 32 combina-
tions of open or short connections on the VID
pins. The output voltage should not be adjusted
while the converter is delivering power. Re-
move input power before changing the output
voltage. Adjusting the output voltage during
operation could toggle the PGOOD signal and
exercise the overvoltage protection.
Pin Name
Nominal
Output
Voltage
Dacout
VID4 VID3 VID2 VID1 VID0
0
1
1
1
1
1.30
0
1
1
1
0
1.35
0
1
1
0
1
1.40
0
1
1
0
0
1.45
0
1
0
1
1
1.50
0
1
0
1
0
1.55
0
1
0
0
1
1.60
0
1
0
0
0
1.65
0
0
1
1
1
1.70
0
0
1
1
0
1.75
0
0
1
0
1
1.80
Pin Name
Nominal
Output
Voltage
Dacout
VID4 VID3 VID2 VID1 VID0
0
0
1
0
0
1.85
0
0
0
1
1
1.90
0
0
0
1
0
1.95
0
0
0
0
1
2.00
0
0
0
0
0
2.05
1
1
1
1
1
0
1
1
1
1
0
2.1
1
1
1
0
1
2.2
1
1
1
0
0
2.3
1
1
0
1
1
2.4
1
1
0
1
0
2.5
1
1
0
0
1
2.6
1
1
0
0
0
2.7
1
0
1
1
1
2.8
1
0
1
1
0
2.9
1
0
1
0
1
3.0
1
0
1
0
0
3.1
1
0
0
1
1
3.2
1
0
0
1
0
3.3
1
0
0
0
1
3.4
1
0
0
0
0
3.5
Note: 0=connected to GND or VSS, 1=OPEN
Table 1 Output voltage program
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