参数资料
型号: LTC2928IUHF#TRPBF
厂商: Linear Technology
文件页数: 2/32页
文件大小: 0K
描述: IC PWR SUPPLY SEQUENCER 38-QFN
标准包装: 2,500
类型: 序列发生器
监视电压数目: 4
复位: 低有效
复位超时: 最小为 5 ms
电压 - 阀值: 可调节/可选择
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 38-WFQFN 裸露焊盘
供应商设备封装: 38-QFN(5x7)
包装: 带卷 (TR)

LTC2928
ABSOLUTE
AXI U RATI GS (Note 1, 2)
Supply Voltages
HV CC ...................................................... –0.3V to 18V
V CC ........................................................ –0.3V to 6.5V
Input Voltages
V1, V2, V3, V4 ....................................... –0.3V to 12V
MS1, MS2, RDIS .................................. –0.3V to 6.5V
SQT1, SQT2, VSEL ............................... –0.3V to 6.5V
RT1, RT2, RT3, RT4 .............................. –0.3V to 6.5V
ON, OVA ......................................... –0.3 to V CC + 0.3V
STMR, PTMR, RTMR ..................... –0.3 to V CC + 0.3V
Output Voltages
EN1, EN2, EN3, EN4 (Note 3)................. –0.3V to 12V
CMP1, CMP2, CMP3, CMP4 ................. –0.3V to 6.5V
PACKAGE/ORDER I FOR ATIO
TOP VIEW
  FLT , RST , OV , CAS ................................ –0.3V to 6.5V
DONE , REF ................................... –0.3V to V CC + 0.3V
RMS Currents
IV CC .................................................................±10mA
IHV CC ...............................................................±20mA
I REF ..................................................................±10mA
Operating Ambient Temperature Range
LTC2928C ................................................ 0°C to 70°C
LTC2928I ............................................. –40°C to 85°C
Storage Temperature Range
SSOP Package ................................... –65°C to 150°C
QFN Package...................................... –65°C to 150°C
Lead Temperature (Soldering, 10 sec)
SSOP Package .................................................. 300°C
CMP1
CMP2
EN2
1
2
3
36 CMP4
35 CMP3
34 V3
TOP VIEW
38 37 36 35 34 33 32
V2
OVA
EN1
V1
REF
4
5
6
7
8
33 EN3
32 V4
31 EN4
30 RTMR
29 PTMR
OVA 1
EN1 2
V1 3
N/C 4
REF 5
31 EN3
30 V4
29 EN4
28 RTMR
27 PTMR
RT1 9
RT2 10
RT3 11
RT4 12
SQT1 13
SQT2 14
MS1 15
MS2 16
28 STMR
27 VSEL
26 GND
25 HV CC
24 V CC
23 RST
22 OV
21 FLT
RT1 6
RT2 7
RT3 8
RT4 9
SQT1 10
SQT2 11
MS1 12
39
13 14 15 16 17 18 19
26 STMR
25 VSEL
24 GND
23 HV CC
22 V CC
21 RST
20 OV
RDIS 17
20 DONE
CAS 18
19 ON
UHF PACKAGE
38-LEAD (5mm × 7mm) PLASTIC QFN
G PACKAGE
36-LEAD PLASTIC SSOP
T JMAX = 125°C, θ JA = 95°C/W
T JMAX = 125°C, θ JA = 34°C/W
EXPOSED PAD (PIN 39) PCB GND CONNECTION OPTIONAL
ORDER PART NUMBER
LTC2928CG
LTC2928IG
G PART MARKING
LTC2928CG
LTC2928IG
ORDER PART NUMBER
LTC2928CUHF
LTC2928IUHF
UHF PART MARKING
LTC2928CUHF
LTC2928IUHF
Order Options Tape and Reel: Add #TR
Lead Free: Add #PBF Lead Free Tape and Reel: Add #TRPBF Lead Free Par t Marking: http://www.linear.com/leadfree/
Consult LTC Marketing for parts specified with wider operating temperature ranges.
2
2928f
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