Test conditions: Input VCC
參數(shù)資料
型號: NCN6004AFTBR2
廠商: ON Semiconductor
文件頁數(shù): 19/40頁
文件大?。?/td> 0K
描述: IC INTERFACE SAM/SIM DUAL 48TQFP
標(biāo)準(zhǔn)包裝: 1
應(yīng)用: PC,PDA
接口: 微控制器
電源電壓: 1.8 V ~ 5.5 V
封裝/外殼: 48-TQFP 裸露焊盤
供應(yīng)商設(shè)備封裝: 48-TQFP(7x7)
包裝: 剪切帶 (CT)
安裝類型: 表面貼裝
其它名稱: NCN6004AFTBR2OSCT
NCN6004A
http://onsemi.com
26
Figure 21. Typical Output Voltage Ripple
Test conditions: Input VCC voltage = 5.0 V, Current = 200 mA /div,
Tamb = +20°C
According to the ISO78163 and EMV specifications, the
interface shall limits the CRD_VCC output current to
200 mA maximum, under short circuit conditions. The
NCN6004A supports such a parameter, the limit being
depending upon the input and output voltages as depicted
in Figure 22.
Figure 22. Output Current Limit
Figure 23. Output Current Limit as a Function
of the Temperature
180
160
140
120
100
80
60
40
20
0
6
5
4
3
2
Vbat (V)
I out
(mA)
Vo = 5.0 V
Vo = 3.0 V
Vo = 1.8 V
100
5.0
25
TEMPERATURE (
°C)
15
35
55
75
95
115
160
150
140
130
120
110
I out
(mA)
Vo = 5.0 V
Vo = 3.0 V
Vo = 1.8 V
IO(max) = F(Vbat)
Beside the continuous current capability, the smart card
power supply must be capable of providing a 100 mA pulsed
current during the data transaction. The ISO78163,
paragraph 4.3.2, defines this 400 ns pulse as a function of the
environment. As a matter of fact, this pulse does not come
solely from the NCN6004A DC/DC converter, but the
reservoir capacitor and the associated PCB tracks shall be
considered as well.
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