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G5921 Datasheet(PDF) 2 Page - Global Mixed-mode Technology Inc

Part # G5921
Description  Ultra Low-Dropout, Constant-Current White LED Bias
PDF  9 Pages
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Manufacturer  GMT [Global Mixed-mode Technology Inc]
Direct Link  http://www.gmt.com.tw
Logo GMT - Global Mixed-mode Technology Inc

G5921 Datasheet(HTML) 2 Page - Global Mixed-mode Technology Inc

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Ver: 0.4 Preliminary
Feb 03, 2005
TEL: 886-3-5788833
http://www.gmt.com.tw
2
G5920/G5921
Global Mixed-mode Technology Inc.
Absolute Maximum Ratings
VCC to GND……………………………….-0.3V to +7.0V
EN, LED1, LED2, LED3 to GND..…-0.3V to VCC+0.3V
Operating Temperature Range….…….……-40 to 85°C
Junction Temperature…………………..…………125°C
Storage Temperature……………………-65°C to 150°C
Reflow Temperature (soldering, 10sec)…...……260°C
Stress beyond those listed under “Absolute Maximum Rating” may cause permanent damage to the device.
Electrical Characteristics
VCC = VEN = 3.6V, TA = 25°C
PARAMETER
CONDITION
MIN
TYP
MAX
UNIT
Input Voltage Range
VCC
2.5
---
5.5
V
Quiescent Current
IQ
---
180
230
µA
Shutdown Current
IQ(OFF), VEN = 0V
-1
---
+1
µA
Input Voltage UVLO Threshold
VUVLO
---
2
---
V
Output Current
Max ILED
18
20
22
mA
Output Current Line Regulation
VLED = 0.5V~2V
-0.5
---
+0.5
%/V
Current Matching
VLED = 0.5V
-4
±
0.6
+4
%
LED Pin Voltage Dropout
VLED(DROP), 90% Max ILED
---
---
0.15
V
EN Pin Input Voltage High
VIH
2
---
---
V
EN Pin Input Voltage Low
VIL
---
---
0.8
V
EN Pin Input Current
IEN
-1
---
+1
µA
EN Pin Off Timeout
TOFF
40
80
200
µS
EN Pin End of Pulse Timeout
TEOP
40
80
200
µS
EN Pin Pulse High Time
THIGH
5
---
30
µS
EN Pin Pulse Low Time
TLOW
5
---
30
µS



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