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LED Driver. HT1618 Datasheet

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LED Driver. HT1618 Datasheet






HT1618 Driver. Datasheet pdf. Equivalent




HT1618 Driver. Datasheet pdf. Equivalent





Part

HT1618

Description

LED Driver



Feature


www.DataSheet.co.kr HT1618 LED Driver DESCRIPTION TM1618 is an LED Controller driven ASIC. 1 segment/grid output lin es, MCU digital interface, data latch, High-voltage LED driver, key scan circu it dare all incorporated into a single chip to build a highly reliable periphe ral device for a single chip microcompu ter. Housed in a 18-pin DIP Package, TM 1618 pin assignmen.
Manufacture

Art Chip

Datasheet
Download HT1618 Datasheet


Art Chip HT1618

HT1618; ts and application circuit are optimized for easy PCB Layout and cost saving ad vantages. FEATURES z CMOS Technology z Display Modes (5segment, 7 grid to 8seg ment, 4grid) z Key Scanning (5 x 1Bit) z 8-Step Dimming Circuitry z Serial Int erface (CLK, STB, DIN, DOUT) z Oscillat ory Manners; RC Oscillation (450KHz ±5 %) z Built-in on-reset circuit z Availa ble in 18-pin, DIP .


Art Chip HT1618

Package APPLICATION z Micro-computer Per ipheral Device z VCR/VCD/DVD set z Comb i set PIN CONFIGURATION: TM1618 PIN D ESCRIPTION Pin Name DIO Description Dat a Input/Output Explanation This pin inp uts serial data at the rising edge of t he shift clock (starting from the lower bit) This pin outputs serial data at t he falling edge of the shift clock (sta rting from the low.


Art Chip HT1618

er bit ) STB Serial Interface Strobe Thi s pin reads initialization serial data at the rising/falling edge of the shift clock then wait for the command. The d ata input after the STB has fallen is p rocessed as a command. When this pin is “HIGH”, CLK is ignored CLK NC K2 S eg1/KS1~Seg5/KS5 Grid1 ~ Grid2 Grid3~Gr id4 Seg12/Grid7~Seg14/Grid5 VDD VSS Clo ck Input Pin NC Key Da.

Part

HT1618

Description

LED Driver



Feature


www.DataSheet.co.kr HT1618 LED Driver DESCRIPTION TM1618 is an LED Controller driven ASIC. 1 segment/grid output lin es, MCU digital interface, data latch, High-voltage LED driver, key scan circu it dare all incorporated into a single chip to build a highly reliable periphe ral device for a single chip microcompu ter. Housed in a 18-pin DIP Package, TM 1618 pin assignmen.
Manufacture

Art Chip

Datasheet
Download HT1618 Datasheet




 HT1618
www.DataSheet.co.kr
HT1618
LED Driver
DESCRIPTION
TM1618 is an LED Controller driven ASIC. 1 segment/grid output lines, MCU digital interface, data latch, High-voltage LED driver,
key scan circuit dare all incorporated into a single chip to build a highly reliable peripheral device for a single chip microcomputer.
Housed in a 18-pin DIP Package, TM1618 pin assignments and application circuit are optimized for easy PCB Layout and cost
saving advantages.
FEATURES
z CMOS Technology
z Display Modes (5segment, 7 grid to 8segment, 4grid)
z Key Scanning (5 x 1Bit)
z 8-Step Dimming Circuitry
z Serial Interface (CLK, STB, DIN, DOUT)
z Oscillatory Manners; RC Oscillation (450KHz ±5%)
z Built-in on-reset circuit
z Available in 18-pin, DIP Package
PIN CONFIGURATION:
APPLICATION
z Micro-computer Peripheral Device
z VCR/VCD/DVD set
z Combi set
TM1618
PIN DESCRIPTION
Pin Name
DIO
Description
Data Input/Output
STB Serial Interface
Strobe
CLK Clock Input Pin
NC NC
K2 Key Data Input Pins
Seg1/KS1~Seg5/KS5
Grid1 ~ Grid2
Grid3~Grid4
Seg12/Grid7~Seg14/Grid5
VDD
VSS
Output Segment
Grid Output Pins
Grid Output Pins
Output (Seg/Grid)
Logic Power
Logic Ground
Explanation
This pin inputs serial data at the rising edge of the shift clock (starting from
the lower bit)
This pin outputs serial data at the falling edge of the shift clock (starting from
the lower bit )
This pin reads initialization serial data at the rising/falling edge of the shift
clock then wait for the command.
The data input after the STB has fallen is processed as a command. When
this pin is “HIGH”, CLK is ignored
This pin reads serial data at the rising edge and outputs data at the falling
edge.
No Connect
The data sent to these pins are latched at the end of the display cycle.
(Internal Pull-Low Resistor)
Segment Output Pins (p-channel, open drain) Also acts as the key source
Grid Output Pins (N-Channel, open drain)
Grid Output Pins (N-Channel, open drain)
Seg/Grid Multiplexing output
5V±10%
Connects the system ground
www.artschip.com
1
Datasheet pdf - http://www.DataSheet4U.net/




 HT1618
www.DataSheet.co.kr
HT1618
LED Driver
ABSOLUTE MAXIMUM RATINGS (Ta=25 , Vss=0V)
Parameter
Logic supply voltage
Logic input voltage
Segment driver output current
Grid driver output current
Power Loss
Supply Temperature
Storage Temperature
Symbol
VDD
VI1
IO1
IO2
PD
Topt
Tstg
RECOMMONDED OPERATING RANGE
(Ta=-20 ~ +70 , Vss=0V)
Parameter
Symbol
Min.
Logic supply voltage
VDD
High-level input voltage VIH
0.7VDD
Low-level input voltage VIL
0
ELECTRICAL CHARACTERISTICS
(Ta=-20 ~+70 , VDD=4.5 ~5.5V, Vss=0V)
Typ
5
-
-
Parameter
Symbol
Min.
Ratings
-0.5 ~+7.0
-0.5 ~VDD+0.5
-50
+200
400
-40 ~+80
-65 ~+150
Max
VDD
0.3VDD
Typ Max.
High-level output current
Ioh1
-20 -25 -40
Ioh2 -20 -30 -50
Low-level output current
IOL1
80 140 -
Low-level output current
High-level output current
tolerance
Output Pull-down
Input Current
High-level input voltage
Low-level input voltage
Lag voltage
Dynamic Current
Idout
Itolsg
RL
II
VIH
VIL
VH
IDDdyn
4-
--
-
0.7 VDD
-
-
-
10
-
-
-
0.35
-
-
5
±1
0.3VDD
-
5
Unit
V
V
mA
mA
mW
Unit Test Condition
V-
V-
V-
Unit Test
Condition
mA Seg1 ~ Seg11,
Vo=VDD-2V
mA Seg1 ~ Seg11,
Vo=VDD-3V
mA Grid1 ~ Grid6
Vo=0.3V
mA VO=0.4, dout
% VO=VDD-3V,
Seg1 ~ Seg11
k K1~K3
µA VI=VDD/VSS
V CLK, DIN, STB
V CLK, DIN, STB
V CLK,DIN,STB
mA Display off, No-load
www.artschip.com
2
Datasheet pdf - http://www.DataSheet4U.net/




 HT1618
www.DataSheet.co.kr
HT1618
LED Driver
SWITHCING CHARACTERISTICS
(Ta=-20 ~+70 , VDD=4.5 ~5.5V)
Parameter
Oscillation
Frequency
Propagation
delay time
Rise time
Symbol
fosc
Min.
-
tPLZ
tPZL
TTZH1
TTZH2
-
-
-
-
Typ
500
-
-
-
-
Max.
-
300
100
2
0.5
Fall time
TTHz
-
-
120
Maximal clock
frequency
Fmax
1
-
-
Input
CI - - 15
capacitance
*TIMING DIAGRAM (Ta=-20 ~+70 , VDD=4.5 ~5.5V)
Parameter
Symbol
Min.
Typ
Clock Pulse wideth
Strobe pulse
wideth
Data setup time
Data hold time
CLKSTB time
Wait time
PWCLK
PWSTB
tSETUP
tHOLD
tCLK STB
tWAIT
400
1
100
100
1
1
-
-
-
-
-
-
Unit
KHz
ns
ns
µs
µs
µs
MHz
pF
Max.
-
-
-
-
-
-
Test Condition
R=16.5k
CLKDOUT
CL=15pF, RL=10k
CL=300pF Seg1~Seg11
Grid1~Grid4
Seg12/Grid7~Seg14/Grid5
CL=300pF, Segn, Gridn,
On 50% duty factor
-
Unit Test
Condition
ns -
µs -
ns -
ns -
µs CLK↑→STB
µs CLK↑→CLK
www.artschip.com
3
Datasheet pdf - http://www.DataSheet4U.net/






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