參數(shù)資料
型號: SI8250
廠商: Silicon Laboratories Inc.
元件分類: 基準(zhǔn)電壓源/電流源
英文描述: DIGITAL POWER CONTROLLER
中文描述: 數(shù)字化電源控制器
文件頁數(shù): 8/30頁
文件大?。?/td> 932K
代理商: SI8250
Si8250/1/2
8
Preliminary Rev. 0.8
Table 7. Peak Current Limit Detector Electrical Specifications
TA = –40 to +125 °C, VDD = 2.5 V, SYSCLK = 25 MHz, PLLCLK = 200 MHz unless otherwise specified.
Parameter
Conditions
Min
Typ
Max
Units
IPK Input to DPWM Output Latency
10 mV Overdrive
45
ns
Threshold Detector Voltage
VT[3:0] = 0000
35
50
65
mV
VT[3:0] = 0001
85
100
115
VT[3:0] = 0010
135
150
165
VT[3:0] = 0011
185
200
215
VT[3:0] = 0100
235
250
265
VT[3:0] = 0101
285
300
315
VT[3:0] = 0110
335
350
365
VT[3:0] = 0111
485
400
415
VT[3:0] = 1000
435
450
465
VT[3:0] = 1001
485
500
515
VT[3:0] = 1010
535
550
565
VT[3:0] = 1011
585
600
615
VT[3:0] = 1100
635
650
665
VT[3:0] = 1101
685
700
715
VT[3:0] = 1110
735
750
765
VT[3:0] = 1111
785
800
815
Hysteresis
HYST[1:0] = 00
0
mV
HYST[1:0] = 01
5
HYST[1:0] = 10
10
HYST[1:0] = 11
20
Blanking Time
LEB[1:0] = 00, f
PLL
= 200 MHz
0
ns
LEB[1:0] = 01, f
PLL
= 200 MHz
20
LEB[1:0] = 10, f
PLL
= 200 MHz
40
LEB[1:0] = 11, f
PLL
= 200 MHz
80
Input Capacitance
4.5
pF
Input Bias Current
0.1
μA
Shutdown Supply Current
Enable bit = 0
0.1
μA
Active Supply Current
IIN = (Vt + 100 mVpp),
1.5 MHz sq. wave
100
μA
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