TK60033 Toko Inc., TK60033 Datasheet
TK60033
Manufacturer Part Number
TK60033
Description
6ch High-side Constant Current Source Led Driver Ic
Manufacturer
Toko Inc.
Datasheet
1.TK60033.pdf
(2 pages)
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Part Number
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Price
Company:
Part Number:
TK60033AB7GHL
Manufacturer:
ASAHIKASE
Quantity:
9 152
The TK60033AB7 type is a low dropout 6ch high-side
constant current LED driver IC in a very small 12-bump flip
chip package.
a 4ch and a 2ch. Each of the two groups has an independent
enable control input pin (EnA, EnB) and an LED current
setting pin (SetA, SetB). Allowing, two different output current
settings. When higher current is required, connecting the
LED output pins in parallel is a possible way of increasing the
LED current because each LED output pin is an independent
high-side current source.
The brightness of each LED group can be controlled by
applying a pulse width modulation (PWM) dimming signal to
each enable pin. No switching signals are generated within
the IC, eliminating any electromagnetic interference (EMI)
problem. The very small flip chip package device helps
reducing the space required for portable applications.
Cathode Topology
TK60033AB7
The IC has two groups of LED driver blocks separated into
DESCRIPTION
FEATURES
ELECTRICAL CHARCTERISTICS
(1.16mm×1.56mm×0.6mm, 0.4mm pitch FC2540-12)
Good LED Current Matching(LED-to-LED, Typ.1.0%)
High Accuracy (±3% at 15mA LED Current)
Low Dropout Voltage (Typ.30mV)
6ch High-side Constant Current Source
Two Independent LED groups (4ch+2ch) Operation
Capacitor-less (Without Input and Output Capacitor)
No Internal Switching Signals (Eliminates EMI)
Wide Operating Voltage Range (2.7V ~ 5.5V)
Two Ways to Set Constant Current in the LEDs:
Dimming Via a PWM Signal
Over-Current and Over-Temperature Protection
Very Small 12-Bump Flip Chip Package
6ch High-Side Constant current source LED driver IC
6ch ハイサイド 定電流LEDドライバIC
Drives up to Six LEDs at 25mA each in a Common
- Set by External Resistor R
- Default Value Preset of 3mA (R
TK60033AB7
Type
FC2540-12
Num. of white LED
Parallel
1 to 6
Set
Set
Constant Current
Circuit system
is not needed)
2.7 to 5.5V
V
OP
TK60033AB7タイプはハイサイドタイプの6ch定電流LEDド
ライバICです。高精度にマッチングの取れたLED電流を供給
し、低い飽和電圧を特長とします。
ICは4chと2chの2つのグループに分かれており、それぞれ独
立した電源コントロール端子(EnA, EnB) と電流設定端子
(SetA, SetB)を持っています。2つのグループは互いに影響無
く異なる電流設定をすることが出来ます。
各chのLED電流出力は各々独立した電流ソースであるため、
より多くの電流が必要な場合には、各LED端子を接続して束
ねることによりLED出力電流を加算することが出来ます。
各グループの明るさはそれぞれの電源コントロール端子に
PWMの信号を入力することで、制御出来ます。
IC内部にはDCDCコンバータやチャージポンプのようにスイ
ッチング信号を発生する回路が無いため、スイッチングノイ
ズが発生せずEMIの抑制に有効です。
パッケージは超小型の12端子フリップチップです。高密度実
装を要求される携帯機器に最適です。
-40 to +85°C
LED電流を各ch25mA供給可能(最大6ch)
2つの独立したグループ構成(4ch+2ch)
2通りの電流設定が可能
-外付け抵抗RSetによる抵抗設定
-プリセット3mA (RSet無し)
PWM調光が可能
高精度なLED電流マッチング(Typ.1.0% : LED間)
高いLED電流精度(±3% at 15mA LED電流)
低い飽和電圧(Typ.30mV at ILED=3mA)
ハイサイドタイプ6ch定電流ソース
入出力キャパシタレス
内部にスイッチング信号が発生しない(低EMI)
広い入力電圧範囲(2.7V ~ 5.5V)
過電流保護機能、過熱保護機能内蔵
超小型パッケージ : FC2540-12 (1.16mm×1.56mm)
T
OP
1000mW
P
D
LED Current Matching
1%
2009 AUTUMN
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TK60033 Summary of contents
Page 1
... TK60033AB7 FC2540-12 DESCRIPTION The TK60033AB7 type is a low dropout 6ch high-side constant current LED driver very small 12-bump flip chip package. The IC has two groups of LED driver blocks separated into a 4ch and a 2ch ...
Page 2
PIN CONFIGRATION BLOCK DIAGRAM 2009 AUTUMN Over-Current & Enable A4 EnA Over-Temperature Logic Protection 1MΩ Current Current Source A1 SetA Setting Control Over-Current & Enable ...