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參數(shù)資料
| 型號(hào)： | 935256880112 |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | 0.25 A SWITCHING REGULATOR, 50 kHz SWITCHING FREQ-MAX, PDIP8 |
| 封裝： | SOT-97, DIP-8 |
| 文件頁(yè)數(shù)： | 17/22頁(yè) |
| 文件大?。?/td> | 154K |
| 代理商： | 935256880112 |
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1998 Aug 19
4
Philips Semiconductors
Preliminary specication
Greeny; GreenChip
TEA1501
BLOCK DIAGRAM
Fig.2 Block diagram.
handbook, full pagewidth
MGM820
Vaux MANAGEMENT
REFERENCE BLOCK
TEMPERATURE
PROTECTION
SWITCH
OSCILLATOR
startup current source
SUPPLY CURRENT
TRACKING
MODULATOR
on/off level
data off
data on
BURST OSCILLATOR
LOGIC
TEA1501
COUNTER
power
switch
GATE DRIVER
LEADING EDGE
BLANKING
5
6
3
2
48
1
Vdetect
Drn
OOD
Gnd
Vaux
Ref
Bt
Src
PINNING
SYMBOL
PIN
DESCRIPTION
Src
1
source of the power switch and input
for primary current sensing
OOD
2
on/off input and data transfer output
Bt
3
input for burst capacitor
Ref
4
input for reference resistor
Vaux
5
supply input of the IC and input for
voltage regulation
Gnd
6
ground
n.c.
7
not connected to comply with safety
requirements
Drn
8
drain of the power switch and input
for startup current
Fig.3 DIL8 Package.
handbook, halfpage
1
2
3
4
8
7
6
5
MGM821
TEA1501
Drn
n.c.
OOD
Gnd
Vaux
Ref
Bt
Src
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